Product - Seawater Treatment

Drinking Water From The Sea

RO-MEMBRANE FILTRATION UNITS Designed and constructed for continuous operation to desalt and purify:

Sea Water
Brackish Water
City Water
Industrial Waste Water

ROCHEM RO-PF-5-10S from sea water 5000-10000 l/24h potable water ROCHEM from sea water sw5

ROCHEM RO-PF-15-30S from sea water 15000-30000 l/24h potable water ROCHEM from sea water sw15

With comprehensive standard features

Necessary feature such as filter booster pump, filtration package, inbuilt cleaning system, automatic pressure regulation, flow control, full instrumentation and fail-safe protection are fitted as standard – not as expensive ‘options’ as in the case of many other systems.

With additional facilities

The basic system design allows for a building block concept or modular expansion to incorporate-either at the factory or as a later retrofit-additional facilities to meet the changing needs of the operator. For example, raw water pre-heaters can be included with no modifications to the basic system. Carbon filters, pure water distribution systems, ultra violet and/or chlorine dosing systems etc. can also be easily interfaced with the basic system.

Plus low-cost maintenance, operation and service

Modular construction and purpose-designed clear access to all major components and piping means that inspection and preventive maintenance can be carried out quickly and effectively.

Automatic operation and regulation of the system, fail-safe design and fault indication facilities ensure correct, safe and reliable operation of the system.

A fully documented computer ‘history’ with details of all component parts used is developed for each system produced and a comprehensive spare parts and consumables inventory is maintained by Rochem to provide the operator with a quick response after-sales service.

Based wide range of standard systems

With 10 different capacities up to 350000 litres/ 24 hours for sea water application and a similar number up to 500000 litres/ 24 hours for brackish water, Rochem can usually meet at short notice most customer requirements from its standard range. If not, larger capacity systems or more specialized systems are available on request.

And installed and operational in a matter of hours

Since every Rochem RO system is completely assembled and fully tested prior to dispatch from the factory and can be in full operation literally just a few hours after arriving on site. There are only four fixed or flexible pipe connections to make plus an electrical supply. Nothing else.

List of standard components

Filter booster pump
Sand filter
Cartridge filter
High-pressure plunger pump
Motor control valve
High-pressure control system
RO PT module permeators
Pure water de-acidification filter
Inbuilt closed circuit cleaning system
Automatic pure water membrane flushing system
Power and control system
Full instrumentation and measurement equipment
Comprehensive fail-safe system
Fault indication
Modular skid frame construction

Optional Equipment

Main raw-water supply pump
Submersible well-water supply pump
Pure water tank and distribution pump
Chlorine dosing system
Ultra violet disinfection system
Containerized/ mobile systems
Self contained power supply
Shock and vibration proof systems to military standards
Anti-magnetic systems

Approved by

German Lloyd
DOT
Det norske Veritas
RINA
all other class. – societies on request

Guideline to Water Quality from the Rochem Plate Module

A - Municipal Water Treatment			B - Brackish Water Desalination			C - Sea Water Desalination
Recovery: 75% Operating pressure: 40 bar			Recovery: 50% Operating pressure: 40-50 bar			Recovery: 30% Operating pressure: 60 bar
	Feedwater	Purewater		Feedwater	Purewater		Feedwater	Purewater
Conduct.	753 µS/cm	13 µS/cm	Conduct.	14190 µS/cm	193 µS/cm	Conduct.	48900 µS/cm	920 µS/cm
TDS	665 ppm	6,0 ppm	TDS	8,898 ppm	104 ppm	TDS	34340 ppm	400 ppm
Na	49 ppm	1,3 ppm	Na	2368 ppm	39 ppm	Na	9,600 ppm	140 ppm
K	5,8 ppm	0,1 ppm	K	80 ppm	2 ppm	K	34 ppm	0,8 ppm
Ca	113 ppm	0,4 ppm	Ca	107 ppm	0,24 ppm	Ca	327 ppm	1,6 ppm
Mg	10,6 ppm	0,04 ppm	Mg	294 ppm	0,48 ppm	Mg	1360 ppm	3,4 ppm
Cl	142 ppm	3,3 ppm	Cl	4320 ppm	61 ppm	Cl	20210 ppm	201 ppm
SO4	106 ppm	-	SO4	607 ppm	-	SO4	2,590 ppm	2,4 ppm
Si	25 ppm	0,3 ppm	Si	0,3 ppm	-	Si	0,1 ppm	-