2012 Ultrafiltration system in a 40ft container

Ultrafiltration system in a 40ft container.

Process specification

Raw water Groundwater, surface water, pre-treated waste water

Flow capacity 12 to 38 m³/h

Water temperature 2 to 35°C

pH 6,5 to 9,0

Membrane pore size 0,02 μm

Membrane module no 2 x 4

Membrane surface per module 60 m²

Membrane surface total 480 m²

Suspended solids inlet ca. 0,5 to 50; max. 100 mg/l

Suspended solids outlet < 0,5 mg/l

Maximum pressure in plant 5,0 bar

Main components

Pre-filter with automatic backwash

Flocculation with pH adjustment

Ultrafiltration

Backwash

Chemical enhanced backwash (CEB)

Dosing station for flocculation and pH adjustment

Dosing station for chemical enhanced backwash (CEB)

Compressed air system for integrity test and pneumatic drives

Optional component

Neutralisation (outside of the container)

Pipe and fittings

Water and waste water PP

Chemicals dosing station PP and PVC

Chemicals do dosing point EPDM hose with PVC protective pipe

Control panel

PLC System fabricate T-Box

Bus System Modbus

Operation and monitoring 15 inch touch panel

Remote control/monitoring

Container dimensions

Construction 40 feet standard sea container

Number of containers 1

Height x width x length 2.591 mm x 2.438 mm x 12.192 mm

Weight (without water) approx. 15.000 kg

Weight (in operation) approx. 25.000 kg

Possibility for transport, loading and moving the container

 By using crane and wire or steel chain over 4 pieces upper ISO-edges.

 By using crane and wire or steel chain over 4 pieces lower ISO-edges.

 Pockets for forklift truck are not foreseen on the container.

Please apply the instruction manual of the container manufacturer for transport, loading and moving the container, as well as during preparation of the ground and storing position of the container.

Medium connections

The container has several windows, which are equipped with cover and screw. Through these windows the pipes for the mediums and cables for the electrical power are connected with the container.

Medium connections Flange EN 1092-1/10/DIN 2576 PN 10

Raw water 2 x DN 80

Waste water 2 x DN 125

Filtrate 1 x DN 125

Drain 1 x DN 125; 1 x DN 80

Electrical power supply

Main electrical power supply for the container would be connected to the control panel, which distributes the electricity to the electrical consumers within the plant. The connection of the main cable from the voltage supply source to the control panel must be done by special qualified electrician.

Required cable cross section 25 mm²

Required safety fuse (on site) 63 A

Voltage supply three-phase current 400 V

Optional equipments outside of the container

Following equipment is to be placed outside of the container and must be transported separately.

Neutralisation tank with agitator

Diameter 2300 mm

Height 2470 mm

Useful volume 5 m³

Agitator rated power 1,5 kW

The system consists of:

Raw water supply, pre-filtration, flocculation stage, ultrafiltration, backwashing and chemically assisted backwashing, neutralization, dosing stations, valve terminal, compressor unit, measuring devices, control and piping.

The raw water supply is regulated automatically, either via the fill level in the flocculation tanks or via the flow meter in the inlet for ultrafiltration.

Prefiltration via a self-cleaning filter with automatic control.

The flocculation can take place either in a tube flocculator or in one or two stirred tanks connected in series. There is also the option of connecting the tube flocculator and the stirred tank in series. A feed pump is provided at the outlet of the flocculation container.

The ultrafiltration group consists of 8 UF modules which can be operated together as one line or in two lines. The UF modules are provided on a UF rack, which has a compact but accessible structure for monitoring and maintenance activities.
The filtrate from the ultrafiltration is stored in a filtrate container. An overflow pipe ensures that there is always a sufficient amount of filtrate available for rinsing in the tank. The filtrate container is equipped with a ventilation filter to prevent contamination from the ambient air.
Backwashing by means of a frequency-controlled backwash pump is either time-controlled, when a maximum permissible transmembrane pressure (or minimum flux) is reached or triggered manually. The system is designed so that one line can be operated while the other line is backwashed or dry cleaned.
The wastewater from the chemically assisted backwashing – controlled by continuous pH measurement at the outlet of the UF backwashing line – is automatically diverted into the neutralization tank. The pH value of the waste water is continuously measured in the neutralization tank and adjusted to a permissible value by adding acids or alkalis.
The dosing stations are located in a separate chemical compartment of the container in the following version:
Dosing pallet with dosing pump and fittings firmly piped. The dosing plates are each equipped with a drip tray and transparent PVC splash protection.
Power each 1.1 kW, dosing container material PP
Dosing station flocculant – flow rate: 7.5 l / h, pressure: max. 16 bar, content: 400 l
Dosing station acid-alkali for pH adjustment – flow rate: 12 l / h, pressure: max. 12 bar, content: 400 l
Dosing station acid for CEB – delivery rate: 150 l / h, pressure: max. 4 bar, content: 140 l
Dosing station lye for CEB – flow rate: 150 l / h, pressure: max. 4 bar, content: 100 l
Dosing station NaOCl for CEB – flow rate: 17 l / h, pressure: max. 7 bar, content: 5 to 7 l
In the air-compressor unit, compressed air is produced for control air of the pneumatically driven fittings and for the membrane integrity test. The compressed air system runs on / off independently through the internally installed pressure switch.
The system is designed for automatic operation so that it can be operated on site without constant monitoring of the operating staff.

producer:
type designation: Containeranlage
condition: used
Pieces 8 Ultrafiltration modules
Filter surface 60 m² per module
Pressure 1.5 bar max. Transmembrane pressure (filtration)
Pressure 3.0 bar max. Transmembrane pressure (backwash)
Dimensions 1497 x 710 x 2400 mm UF rack dimensions
Description Vorfiltration / Pre-filtration Filter fineness <300 µm - Minimum differential pressure for flushing: 0.3 bar, max. flow rate: 40 m³/h - Accessories: differential pressure switch
Description Rohwasserzuführung / Raw water supply Tauchmotorpumpe, frequenzgeregelt, Fördermenge: 40 m³/h, Förderdruck: 2,5 bar, Leistung: 7,5 kW
Description Flockungsstufe / flocculation stage Flocculation tank (PP), 2 x 0.5 m³, feed pump, frequency controlled (40 m³ / h, 2.0 bar, 5.5 kW), static mixer (PP), pipe flocculator (PP)
Description Rückspülung / backwashing Filtrate container (PP) volume 4,7 m³, flow rate 115 m³/h at discharge pressure 3 bar, power 18,5kW
Description Neutralisation / neutralization Neutralization tank (PE), useful volume: 5.0 m³, shaft and agitator (steel coated), output 1.1 kW each
Description Steuerung / control PLC brand: PMA type T-Box, 15 “touch panel, remote control / remote monitoring

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