TECNICOMAR ECOmar S Series Manual de usuario

INSTRUCTIONS FOR THE INSTALLATION,

USE AND MAINTENANCE OF

TECNICOMAR SYSTEM FOR SEWAGE WATER TREATMENT

MODEL: ECOmar 20 S; 32 S; 45 S; 70 S; 145 S.

Image for illustration purposes only

Rev.

Date

Main content revisions

10.02.2019

Main Unit

Dosing

System

Sea

Water

Pump

Filling

Pump

Dosing

System

ECOFLOC

Dosing

System

Multimedia

Filter Station

UV Sterilization

Unit

Sludge

Valve

Dear Customer,

We would like to thank you for choosing a TECNICOMAR system to treat the sewage water.

All TECNICOMAR equipments are designed by expert technicians and manufactured with care for all its aspects and in

respect of the EU Directives for the machinery (safety) 89/392 and later modifications.

Before using the unit you are kindly requested to read carefully this manual as integral part of the equipment since the

respect of the instructions here quoted assures the performance and the operator safety.

WARNING!

TECNICOMAR S.P.A. declines any and all liability for failure to observe the safety and accident prevention

standards described in this manual, for damage due to the improper use of the equipment and for modifying it

without the authorisation of Tecnicomar S.P.A.

Signs used throughout the Manual

Warning

These instructions should be followed carefully to operate the equipment correctly.

Danger

These instructions should be followed carefully to avoid damage to the equipment or to the operator.

Note or Information

The notes contain important information and useful hints to run the unit.

If not specified otherwise, letters & numbers used in the text refer to the functional diagram shown in the drawings situated at

the end of this Manual.

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

This Manual is intellectual property of Tecnicomar S.P.A. Any reproduction of contents or drawings – unless authorized

by Tecnicomar S.P.A. – is not permitted and will be prosecuted.

TABLE OF CONTENTS

1INTRODUCTION.............................................................................................................................................................5

2STORAGE PRIOR TO UNPACKING AND PACKAGING CONTENT........................................................................5

2.1 Storage Prior to Unpacking...........................................................................................................................................5

2.2 Unpacking.....................................................................................................................................................................5

2.3 Checking Packaging Content........................................................................................................................................5

3MARKING OF PRUDOCT...............................................................................................................................................6

4PLACARD.........................................................................................................................................................................6

5TREATMENT CAPACITY..............................................................................................................................................6

6SYSTEM DESCRIPTION.................................................................................................................................................7

6.1 Management system of the level signals from the collecting tank sensors...................................................................9

6.1.1 Control box for level probe ...............................................................................................................................11

7SAFETY INSTRUCTIONS ............................................................................................................................................13

7.1 Important Safety Information......................................................................................................................................13

7.2 Instructions and Warnings ..........................................................................................................................................13

7.3 CE Declaration of Compliance ...................................................................................................................................15

7.4 Targets of the Manual .................................................................................................................................................16

7.5 Safety Instructions and Prevention..............................................................................................................................16

7.5.1 Generalities.......................................................................................................................................................16

7.5.2 Noise..................................................................................................................................................................16

7.5.3 Protections.........................................................................................................................................................17

7.5.4 General Instructions for Safety Use ..................................................................................................................17

7.6 Before Turning on.......................................................................................................................................................17

7.6.1 Checks before Turning On.................................................................................................................................17

7.6.2 Useful Advice.....................................................................................................................................................17

7.7 Danger Informations...................................................................................................................................................18

7.8 Fire and Explosion Prevention....................................................................................................................................19

7.9 Cuttings Prevention.....................................................................................................................................................19

7.10 Fluid Recommendations .............................................................................................................................................19

7.10.1 Hydrogen Peroxide (H2O2) solution..................................................................................................................19

7.10.2 ECOFLOC solution...........................................................................................................................................19

8INSTALLATION ............................................................................................................................................................20

8.1 Components to be supplied by Owner ........................................................................................................................20

8.2 Qualification of the Installation Crew.........................................................................................................................20

8.3 Fixing the skid.............................................................................................................................................................20

8.4 Installation of the level sensor for Sludge Tank..........................................................................................................21

8.5 Main unit plumbing connections.................................................................................................................................21

8.5.1 Installing the H2O2dosing line..........................................................................................................................21

8.5.2 Installing the ECOFLOC dosing line................................................................................................................21

8.5.3 Installing the filling line ....................................................................................................................................21

8.5.4 Installing the seawater line ...............................................................................................................................21

8.5.5 Installing the air relief.......................................................................................................................................22

8.5.6 Installing the Main Unit and Sludge Discharge Valve (V2) interconnection line.............................................22

8.6 Loose parts installation ...............................................................................................................................................22

8.6.1 Installing Filling section....................................................................................................................................22

8.6.1.1 Installing the Level Probe on the collecting tank.....................................................................................22

8.6.1.2 Installing filling pump..............................................................................................................................24

8.6.1.2.1 Installation of the suction pipe of the filling pump .............................................................................25

8.6.2 Installing sea water pump .................................................................................................................................25

8.6.3 Installing H2O2dosing system...........................................................................................................................26

8.6.3.1 Transfer of H2O2solution ........................................................................................................................26

8.6.4 Additional Unit..................................................................................................................................................27

8.6.4.1 Installing ECOFLOC dosing system........................................................................................................27

8.6.4.1.1 Transfer of ECOFLOC solution..........................................................................................................27

8.6.4.2 Installing the Sludge Discharge Valve (V2) ............................................................................................28

8.6.4.3 Installing the Multimedia Filter Station...................................................................................................28

8.6.4.4 Installing the U.V. Sterilizer ....................................................................................................................28

8.7 Outboard discharge line ..............................................................................................................................................29

8.8 Electrical connections.................................................................................................................................................29

8.8.1 Main Control Box..............................................................................................................................................29

8.8.2 H2O2 DOSING SYSTEM ..................................................................................................................................30

8.8.3 LEVEL PROBE CONTROL BOX......................................................................................................................30

8.8.4 REMOTE CONTROL (OPTIONAL).................................................................................................................. 31

9PCB CONTROL PANEL – Functional Description........................................................................................................32

9.1 Main page ...................................................................................................................................................................32

9.1.1 Programming the parameters of the Electronic board PRO14/02 for ECOmar S............................................32

9.2 Automatic mode..........................................................................................................................................................34

9.3 Manual mode ..............................................................................................................................................................35

9.4 Alarms Description.....................................................................................................................................................36

9.4.1 Filling Alarm.....................................................................................................................................................36

9.4.2 Seawater Alarm.................................................................................................................................................37

9.4.3 Sludge Tank Overflow Alarm ............................................................................................................................38

9.4.4 Tank Overflow Alarm ........................................................................................................................................38

9.4.5 Overload Alarm.................................................................................................................................................38

9.4.6 High Pressure Alarm.........................................................................................................................................39

9.5 Remote control for ECOmar S - model: CDMAR2 (optional) ...................................................................................40

9.6Remote control for ECOmar S - model: PC link (optional)........................................................................................41

9.7 Remote control for ECOmar - model: Touch screen (optional)..................................................................................41

10 FIRST START UP PROCEDURE..................................................................................................................................42

10.1 Start-up Procedure ......................................................................................................................................................42

10.2 Shutdown Procedure...................................................................................................................................................43

11 ROUTINE OPERATION ................................................................................................................................................43

12 SPECIAL PROCEDURES ..............................................................................................................................................44

12.1 Overboard (Untreated Sewage) Discharge procedure.................................................................................................44

12.1.1 Macerating/Discharge pumps performance curves...........................................................................................45

12.2 Emptying the Treatment Tank procedure (in case of Tank Overflow Alarm) ............................................................49

12.3 Winterizing procedure.................................................................................................................................................49

12.3.1 Washing the treatment tank...............................................................................................................................51

12.3.2 Washing the Level Sensor of the treatment tank................................................................................................51

13 COMMON PROBLEMS AND TROUBLESHOOTING................................................................................................52

13.1 Troubleshooting Table................................................................................................................................................52

13.1.1 Manual opening activation for motorized valves ..............................................................................................57

14 MAINTENANCE INSTRUCTIONS ..............................................................................................................................59

14.1 Ordinary Maintenance.................................................................................................................................................59

14.1.1 H2O2 Dosing system.........................................................................................................................................59

14.1.2 ECOFLOC Dosing system.................................................................................................................................59

14.1.3 Multimedia Filter Station ..................................................................................................................................60

14.1.4 U.V. Sterilizing System ......................................................................................................................................60

14.2 Extraordinary Maintenance.........................................................................................................................................61

14.2.1 Collecting Tank level probes instructions .........................................................................................................61

14.2.2 Filling pump instructions ..................................................................................................................................61

14.2.3 Treatment Tank Level probes instructions ........................................................................................................62

14.2.4 Pressure switch instructions..............................................................................................................................62

14.2.5 Dosing Systems (H2O2& ECOFLOC) instructions...........................................................................................62

14.2.6 Seawater pump instructions ..............................................................................................................................62

14.2.7 Macerating pump instructions...........................................................................................................................63

14.2.8 Three-Way Motorized Valves (V1&V2) instructions.........................................................................................63

14.2.9 Multimedia Filter Station instructions...............................................................................................................63

14.2.10 U.V. Sterilizing System instructions ..................................................................................................................64

14.3 System Settings...........................................................................................................................................................64

14.3.1 H2O2Dosing pump setting................................................................................................................................. 64

14.3.2 ECOFLOC Dosing pump setting.......................................................................................................................65

14.3.3 Display Contrast Calibration............................................................................................................................65

14.4 MAINTENANCE PLAN FOR SEWAGE TREATMENT PLANT ECOMAR S......................................................66

15 TECHNICAL SPECIFICATIONS..................................................................................................................................69

15.1 ECOmar 20 S – Data Sheet......................................................................................................................................... 69

15.2 ECOmar 32 S – Data Sheet......................................................................................................................................... 70

15.3 ECOmar 45 S – Data Sheet......................................................................................................................................... 71

15.4 ECOmar 70 S – Data Sheet......................................................................................................................................... 72

15.5 ECOmar 145 S – Data Sheet.......................................................................................................................................73

16 SPARE PARTS LISTS....................................................................................................................................................74

17 WARRANTY FOR TECNICOMAR EQUIPMENTS....................................................................................................80

17.1 WARRANTY CLAIM................................................................................................................................................80

17.1.1 ECOmar S - WARRANTY REGISTRATION CARD...........................................................................................81

ANNEXES................................................................................................................................................................................86

1INTRODUCTION

The system is able to treat the on board sewage water as to make it suitable to be discharged directly into the sea, in accordance

with the international standard (IMO-MARPOL regulation – MEPC 227).

The unit does not need to be run by any operator, who has only to start up the unit in automatic mode. The ECOmar S plant is

a batch functioning system that treat a fixed quantity of sewage at each operating cycle. Each cycle starts with the loading of a

set quantity of sewage water from the on board collecting tank (your supply). After loading, the sewage is diluted with clean

seawater and pre-set quantities of Hydrogen Peroxide (H2O2) and ECOFLOC Flocculants are added. Finally the sewage is

macerated and mixed for a fixed period of time, after which it is made to rest for a further fixed period of time. During these

steps, lasting some minutes, the chemical-physical reactions inside the system disinfect the water, reduce the dimensions of

sediments and separate the cleared water from the sludge. At this point, the cleared water pass throughout a multimedia filter

station and an U.V. sterilizer and finally it is discharged outboard into the sea, according to the International Rules (IMO-

MARPOL regulation – MEPC 227). In the final step of the operation cycle the system discharges the residual sludge into the

on board sludge tank (your supply).

The automatic mode functioning is continuous in that the unit is able to start-up automatically a sewage treatment cycle every

time the set quantity of stored sewage; relative to the collecting tank level (Max Level) set to start-up the cycle; is reached

inside the on board collecting tank (your supply).

Each operating cycle lasts about 22-25 minutes. For the sewage quantities treated by the plant refer to the TREATMENT

CAPACITY section.

2STORAGE PRIOR TO UNPACKING AND PACKAGING CONTENT

2.1 Storage Prior to Unpacking

⇒Do not store in direct sunlight.

⇒Do not freeze (see SPECIAL PROCEDURES section).

⇒Do not store above 50°C (122°F).

⇒Store only on base with arrows up.

2.2 Unpacking

a) Open the wood case, if any, being careful to do not hit the protruding parts of the components, such as fittings or pipes,

hose-barbs, flange, etc.

b) Use caution in moving the STP plant and all its loose parts with a forklift or a pallet truck after it is removed from the

shipping crate. Place wood or other material onto the metal forks of the forklift (pallet truck) which can damage the powder

coating on the underside of the skid.

c) Always remember that, despite being accurately packaged and protected, the supply contains light bulbs and quartz tubes:

this means that the entire system must be considered as fragile material and handled as such.

2.3 Checking Packaging Content

After unpacking the Sewage Treatment Plant (STP), check all the parts for any damage. Claims for any missing or damaged

materials must be made immediately to Tecnicomar authorized dealer or Tecnicomar headquarters

In the package there are usually the following components:

•ECOmar S STP main unit, complete with Treatment tank, Macerating pump, Motorized Discharge Valve (V1), PCB control

panel, Multilevel sensors and Nr.4 Anti-vibration dampers (installed on the Main ECOmar S frame).

•Nr.1 Sea water pump*.

•Nr.1†or Nr.2‡filling pumps*.

•Nr.1†or Nr.2‡level probes complete with relative level probe control box (or junction box)*.

•Nr.1 H2O2Dosing system complete with dosing pump and tank*.

•Nr.1 ECOFLOC Dosing system complete with dosing pump and tank*§.

•Nr.1 Sludge Discharge Valve (V2)*§.

•Nr.1 Multimedia Filter Station, complete with the proper quantity of Zeolite and Quartzite*§.

•Nr.1 U.V. Sterilizer*§, complete with U.V. lamps.

•Installation Kit: Nr.3†or Nr.4‡anti-syphon valves set; Nr.1 diaphragm manual pump; hose for dosing pump; and clamps.

•Optional devices, such as a remote control.

*Supplied as loose part.

†If the plant is supplied for one tank control.

‡If the plant is supplied for two tanks control.

§Supplied on request inside a common customizable Additional Skid.

3MARKING OF PRUDOCT

A Nameplate is affixed on the front of the unit, showing:

•Manufacturer information

•EC mark stamp

•Model

•Serial number

•Year of construction

•Voltage

•Hydraulic loading Fig. 3-1 - Nameplate Fig. 3-2 – Mark label

A wheel mark label, attached close to the nameplate, with the identification of the Notified Body and followed by the year in

which the mark is affixed.

4PLACARD

ATTENTION

THE INSTALLATION PROCEDURES EXPOSE THE INSTALLER TO HIGH VOLTAGE AND ELECTRICAL

SHOCK HAZARD. ONLY ATTEMPT INSTALLATION IF YOU ARE A QUALIFIED TECHNICIAN AND

ONLY IF SURROUNDING CONDITIONS ARE SAFE.

DO NOT USE ANY FILTERS ALONG ALL THE AIR RELIEF LINE.

MAKE SURE ALL ANTI-SIPHON VALVES ARE PROPERLY INSTALLED.

CHECK ALL HYDRAULIC PIPES/HOSES ARE PROPERLY FIXED.

CHECK ALL ELECTRICAL CABLES ARE PROPERLY WIRED.

CHECK ROTATION OF ALL MOTORS ACCORDING TO THEIR ARROWS.

USE A CIRCUIT BREAKER IN ORDER TO AVOID OVERLOAD. ITS SIZE DEPENDS ON ELECTRICAL

CONSUMPTION OF THE UNIT.

5TREATMENT CAPACITY

Marine Sanitation Device ECOmar20 S ECOmar 32 S ECOmar 45 S ECOmar 70 S ECOmar 145 S

Average capacity per day (lt.) 1500 2400 3375 5250 10875

Peak capacity per day (lt.)* 2000 3200 4500 7000 14500

Average capacity per hour (lt.) 62.5 100 140.625 218.75 453.125

Peak capacity per hour (lt.) 83.3 133.3 187.5 291.67 604.17

Sewage capacity treated per cycle (lt.) 33.75 52.8 66.5 107.865 241.5

Seawater / brackish water / fresh water load

per cycle (lt.) *** 24.3 38.016 47.88 71.91 124.2

Total volume per cycle (lt.) 58.05 90.816 114.38 179.775 365.7

Persons**, if

passenger ships Without vacuum plant 8 14 19 30 63

With vacuum plant 10 17 24 37 78

Persons**, if

other ships Without vacuum plant 11 17 25 38 80

With vacuum plant 14 23 33 51 107

Condition of heel up to

(max angle of pitch and roll) 22.5°

Range of environmental temperature 0°C ÷ 55°C

Humidity 95%

Salinity 55000 ppm

*System running 24 hours per day.

**Indicative maximum persons number, at peak treatment capacity per day (system running 24h/24h). Ask to Tecnicomar S.P.A. for a proper plant sizing.

***Designed to operate in salt, brackish and fresh water.

6SYSTEM DESCRIPTION

The ECOmar S STP can be supplied with two different configuration: 1 Tank Control or 2 Tanks Control.

The main differences between the two configurations are the number of the supplied filling pumps (1 or 2); the number of the

supplied anti-syphon valve set; the number of the supplied level probes; the number of the supplied level probe control boxes;

the dosing systems arrangement and the main control box arrangement.

The diagrams below show a functional installation scheme of the plant with its main components for both configurations.

Fig. 6-1 - Functional installation scheme – 1 Tank Control - (see also annexed drawing)

Fig. 6-2 - Functional installation scheme – 2 Tanks Control - (see also annexed drawing)

As shown in the diagrams above, the system is composed by:

1. AMain Unit Skid made by:

1.1. A tank (Treatment Tank) made of PP (polypropylene) or SS (stainless steel)*, where the sewage water is treated;

1.2. A pump (Macerator or Macerating Pump) to treat and discharge the treated water;

1.3. A motorized Discharge Valve (V1) to divert the treated water to the sludge discharge valve (V2) inlet or back to the

treatment tank;

1.4. Level probes†, installed on the treatment tank, for the tank level monitoring;

1.5. A pressure sensor (Pressure Switch)‡to protect the treatment tank from overpressure;

1.6. A PCB control panel (Main Control Box) with motor protections, contactors, microprocessor, touch pad and liquid

crystal back-lighted display.

*For the ECOmar 70 S and 145 S; the treatment tank is available only in SS (stainless steel).

†Nr.1 Multi-point Ball Level Switch for ECOmar 20 S – 32 S – 45 S – 70 S – 145 S.

‡Only for the STP supplied with the treatment tank in PP (polypropylene).

Loose parts

2. An Additional Unit*made by:

2.1. Nr.1 ECOFLOC Dosing System composed by a tank and a dosing pump;

2.2. Nr.1 Sludge Discharge Valve (V2)to divert the treated water to the multimedia filter station inlet or to the sludge tank;

2.3. Nr.1 Multimedia Filter Station, to filtrate the cleared from the main treatment unit;

2.4. Nr.1 U.V. Sterilizer to remove any residual coliforms in the treatment water.

3. Nr.1†(or Nr.2‡) Filling Pump to move the sewage water from the collecting to the treatment tank.

4. Nr.1 Disinfectant Liquid (H2O2) Dosing System composed by a tank and a dosing pump.

5. Nr.1 Sea Water Pump to fill the treatment tank with sea water (diluent).

6. Nr.1†(or Nr.2‡) Level Probe for min/max level in the sewage water collecting tank on board (supplied uncut§).

7. Nr.1†(or Nr.2‡) Level Probe Control Box for collecting tank sewage level monitoring (to be connected to Level

Probe).

8. Installation Kit consisting in:

8.1. No.2†(or Nr.3‡) anti-siphon valve sets,

8.2. No.1 anti-siphon valve in case of discharge located below waterline,

8.3. No.4 vibration dampers,

8.4. No.1 manual diaphragm pump for disinfectant tank filling,

8.5. No. 2 injection valve for H2O2and ECOFLOC injection,

8.6. No. 1 tee fitting for H2O2and ECOFLOC injectors installation,

8.7. Pipe for chemicals injection and stainless steel clamps.

Optional

9. A Remote Control Panel that allows the start/stop of the unit.

The ECOmar S Sewage Treatment Plant (STP) is designed to auto-manage the sewage level inside the on board collecting

tank. The standard management system of the level inside the collecting tank is essentially composed by the supplied Level

Probe and by the relative Level Probe Control Box. When the management system of the level signals from the collecting

tank is correctly installed and connected (refer to the Management system of the level signals from the collecting tank

sensors and the INSTALLATION sections) to the Main Control Box of the Main Unit; the plant starts up every time the

sewage collecting tank (your supply) is full and continues to run until it is empty.

The sewage to be treated is pumped from the on board collecting tank to the Treatment Tank of the Main Unit by the Filling

Pump;which, if correctly installed (refer to the INSTALLATION section), also performs a pre-maceration on the sewage,

while transferring it. An anti-siphon valve set is supplied for the filling pump to prevent siphoning on the filling line.

When the transferred sewage reaches the min level of the Multi-point Ball Level Switch, installed on the Treatment Tank of

the Main Unit, the system Main Control Box stops the Filling Pump and activates the Disinfectant Liquid (H2O2) Dosing

System and the ECOFLOC Dosing System at the same time.

If correctly installed and set (refer to the INSTALLATION and to the System Settings sections) the Disinfectant Liquid

(H2O2) Dosing System injects, throughout the relative injector installed on the Treatment Tank, a pre-set quantity of H2O2

solution inside the tank to disinfect the water to be treated.

During the same time, (refer to the PCB CONTROL PANEL – Functional Description section), the ECOFLOC Dosing

System, if correctly installed and set (refer to the INSTALLATION and to the System Settings sections) injects, throughout

the relative injector installed on the Treatment Tank, a pre-set quantity of ECOFLOC solution inside the tank to activate the

sludge separation process.

At this point, the Main Control Box activates the Sea Water Pump; which, if correctly installed (refer to the INSTALLATION

section), pumps a set quantity of clean seawater from the on board seacock valve (your supply), to the Treatment Tank for the

sewage dilution. An anti-siphon valve set is also supplied for the seawater pump to prevent siphoning on the seawater line.

After this preliminary preparation phase, the sewage treatment that takes place almost exclusively on the plant Main Unit,

begins.All chemical-physical reactions necessary for the sewage treatment happens inside the Treatment Tank. This tank is

provided with a Multi-point Ball Level Switch, which is designed to stop the Filling Pump; when the set quantity of sewage

(refer to TREATMENT CAPACITY section) is inside the tank; and the Sea Water Pump, when the set quantity of dilution

seawater is added. Moreover the Multi-point Ball Level Switch is also designed to stop the plant in case of treatment tank

overflow (refer to PCB CONTROL PANEL – Functional Description section). Once filled the Treatment Tank, the Main

Control Box, to which is assigned the management of all the plant parts, activates the Macerating Pump, installed on the Main

Unit. This pump aspires the water to be treated from the treatment tank and resend it to the tank. Thanks to the thus realized

recirculation, the sewage is further macerated and mixed. This operation activates the sewage treatment process that requires

a certain time frame, to be completed successfully. Therefore, once stopped the macerating pump, the sewage is left inside the

tank for a further period of time. During this phase there is a separation of the clarified water from the residual sludge that

*The additional unit is standard supplied with all components as loose parts, but on request it can be supplied in any

customizable common skid configurations.

†If the plant is supplied with the 1 Tank Control Configuration.

‡If the plant is supplied with the 2 Tanks Control Configuration.

§It is important to know dimensions of the storage tank to evaluate type of sensors to supply and fit.

floats on the liquid free surface. In the treatment process, can be released some vapors which, if not correctly expelled from

the treatment tank air vent, could bring to harmful overpressure inside the tank, damaging it. The Treatment Tank is designed

to withstand a certain degree of internal overpressure. In particular for the model with the tank in PP (polypropylene), on the

Treatment Tank is installed a Pressure Switch that stops the system leading it in Overpressure Alarm mode, in case of

overpressure inside the tank. However, for a correct and safe operation of the ECOmar S STP it is recommended to connect

the Treatment Tank air vent as to have a vent piping (refer to the INSTALLATION section) free from any obstructions and

as straight as possible.

DO NOT USE ANY FILTERS

ALONG ALL THE AIR

RELIEF LINE

Once the treatment process is complete, stats the discharge phase. This phase begin is characterized by the status changing of

the Discharge Valve (V1). This 3-way motorized valve, installed on the Main Unit, has in fact the task of diverting the flow

from the Macerating Pump to the Treatment Tank, during the treatment phase; or to the Main Unit discharge outlet, during the

discharge phase.

Moreover, the discharge phase mainly comprises two sub-steps: the clarified water discharge step and the sludge discharge

step. The discrimination between the two sub-steps is assigned to the Sludge Discharge Valve (V2). This 3-way motorized

valve, part of the Additional Unit, has in fact the task of diverting the flow from the Main Unit discharge outlet to the inlet of

the Multimedia Filter Station, during the clarified water discharge step; or to the on board sludge tank (your supply), during

the sludge discharge step.

During the clarified water discharge step the water pass first throughout the Multimedia Filter Station. This component, part

of the Additional Unit, mainly consists of two stages. In the first stage the clarified water is treated by Zeolite to adjust its

residual content. In the second stage the clarified water is subjected to a filtration to eliminate any excessive presence of

suspended solids. Each of the Multimedia Filter Station stages consists of one or two filter that can be backwashed (refer to

SPECIAL PROCEDURES section) using fresh not-chlorinated water (your supply).

At least the clarified water pass throughout the U.V. Sterilizer, which ensure the bacterial removal from the treated water, just

before been discharged. This U.V. Sterilizer is supplied complete with a bag filter, which as the task to protect the U.V. lamps

from the presence of any gross particles. Moreover, an anti-siphon valve set is also supplied for the outboard discharge, in case

of discharge under the seawater line, to prevent siphoning on the outboard discharge line.

6.1 Management system of the level signals from the collecting tank sensors

The main control box of the ECOmar S STP has to interface with a min level signal (N.C.) and max level signal (N.O.) from

the level probes installed on the sewage collecting tank (your supply). The system does not manage the signal for the absolute

max level of the collecting tank. This signal (if provided by the installed probe) can only be used for local or remote signaling.

This signals can be derived from the level probe control box (standard supply), from a junction box connected with two or

three lateral level probe (supplied on request), or from any other levels detecting system (your supply), capable of sending the

correct level signals, as above specified, to the system control box.

When the system is correctly connected to the level sensors of the on board collecting tank and the level probes are configured

to give the correct signals to the system control box; the ECOmar S plant will operate as described below:

I. When the collecting tank is empty, the level of sewage is below

the minimum level and of course below the maximum level. The

min level sensor has to give a closed free voltage contact signal to

the ECOmar S main control box; and the max level sensor has to

give an open free voltage contact signal to the ECOmar S main

control box. In this way, the filling pump is set in standby.

II. When the sewage level of sewage reaches the minimum level, the

min level probe installed on the collecting tank has to give an open

free voltage contact signal to the ECOmar S control box; and the

max level sensor, has to continue to give an open free voltage

contact signal to the ECOmar S main control box. In this way, the

filling pump is still set in standby.

III. When the sewage level of sewage reaches the maximum level, the

min level probe, installed on the collecting tank, has to continue to

give an open free voltage contact signal to the ECOmar S control

box; and the max level sensor, has to give a closed free voltage

contact signal to the ECOmar S main control box. At this point the

ECOmar S control box will activate the filling pump, transferring

the sewage to the ECOmar S treatment tank up to the bottomsensor

in the treatment tank, then stops the sewage transfer and continues

the treatment cycle.

IV. At this stage, after the treatment cycle is completed, we can have two different sceneries:

Min level

Max level

Min level

Max level

Min level

Max level

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