SOBEK-TEC - WE IMPROVE YOUR WATER

SOBEK-TEC

is a system supplier of

customized water treat-

ment and drinking wa-

ter equipment.

We offer our products

and services as single

component or turnkey

project solution into in-

ternational markets.

Flexible System Design

• drinking water capacities

from few to several thou-

send cubic meters per day

due to modular design

• quick installation

easy operation

low maintenance

• high reliability and optimal

power consumption by ener-

gy recovery and peak load

control management

Seawater desalination

Potable water from

sea and brackish water

■ Drinking water according to WHO standards

■ Engineering and system design

■ Plant construction and building

■ Energy and resource management

■ Commissioning and start-up

■ Operation, maintenance and service

Brackish and Sea Water Desalination ● Services ● System Solutions 2015

Desalination of water by means of reverse osmosis technologies

Sobek-Tec provides a modular equipment of high quality and

innovative plant technologies for small, medium and large

desalination performances. All systems are designed in units.

Drinking water capacities upto several thousand m³ per day

can be installed easily in building-block design.

Our basis technology to desalinate sea and brackish water is

the reverse osmosis principle. Every single reverse osmosis

rack and peripheral equipment like filter and dosing stations

are transportable equipment. Units may be erected in a dry

hall or insulated container and interconnected by piping and

cabling systems. Due to the modular design decentralised or

mobile drinking water distribution is possible saving expensive

pipe-line systems.

Reverse Osmosis Principle

drinking water train

2000 m³ per day

We think in contexts and proceed in work-flows of our customers

Your perfect engineering and service partner

Our team of professionals has decades of experience in designing

membrane systems for sea and brackish water desalination, filter or

ultrafiltration systems as well as ion exchangers for water condition-

ing. Whether standard or tailor-made technique, with a team of skil-

led engineers, trained technicians and well versed merchants

SOBEK-Tec provides a comprehensive package of services:

■ Planning and design of sea– and brackish

water desalination station

■ Manufacturing and assembling of modular units

and system components ready for opearation

■ Commissioning and start up on-site

■ Operation- and maintenance-sevices

■ Training and education for service technicians

and operation personnel

SOBEK-Tec provides all necessary equip-

ment and mashinery parts to produce drin-

king water from natural recources like

ground water, rivers, lakes and sea.

If ever possible feed water prefered is

taken from wells. Natural filtration by soil,

less or no need of chemical disinfection and

less problems with water contaminations are

advantages.

The more complex open intake from sea re-

quires offshore intake buildings , special

filtration units to get ride of jelly fish,

mussels, debry and other rubbish.

Chlorination to protect systems against

fouling and declorination to protect subse-

quent membranes against demages by

oxidants is required.

In coopration with experienced partners

SOBEK-Tec provides sophisticated open

intake systems adapted to the application.

MEMBRANE PROCESSES

The separation of fluids and their

dissolved matter by means of

membranes is copied as a very

successful method of

nature.

Membranes are permeable to

certain substances and

molecules, others are held back

by same membrane.

The driving force for mass trans-

fer is the osmotic pressure. Sepa-

ration methods differ according to

treatment objectives and

membrane properties:

Reverese Osmosis (RO)

as a process to desalinate water;

often in combination with ion-

exchangers to soften water. The

RO-process separates a feed

volume into a low-salt permeat

and a saline concentrate. The

higher the salt content in feed

water, the more pressure energy

is necessary for the desalination.

■ Desalination of brackish water

with salt contens up to app.

16,000 ppm requires operating

pressures between 14 to 30 bar

- salt rejection 96 %

- recovery rates 50 %

■ Desalination of sea water with

salt contens up to 45,000 ppm

requires operating pressures

between 60-70 bar

To safe energy, high pressure

pump systems are equipped

with energy recovery devices

(e.g turbines or pressure

exchangers)

- salt rejection 99 %

- recovery rates 35-40 %

Ultrafiltration (UF)

Water treatment for safe removal

of pollutants and suspended sub-

stances as more efficient and

space-saving alternative to

conventional gravel filtration.

Pre filtration of feed water as

stage before reverse osmosis

300 m³ per day drinking water for holiday resort

Many areas, which are developed for tourism, suffer from scarcity of

natural drinking water resources. From experience one hotel guest

consumes approximately 200-300 Liter drinking water per day. Inten-

sive leisure facilities and gardens require additional water.

For hotels and resorts our modular sea water desalination systems

are ideal stand-alone solution to provide drinking water according to

WHO standards. Even if space is limited units can be set up in distri-

buted manner.

We build for any application

■ Reverse osmosis

units on self-

supporting frame

constructions for

easy installation

■ Containerized

solutions even for

extreme ambient

and climatic

conditions

■ Mobile Equipment

and special

constructions

■ Project-related

and customized

design

■ Energy recovery

devices for optimal

energy consumption

single stage desalination plant

type SWS 300 with energy

recovery device for hotel

ENERGY RECOVERY

Desalination of ocean water requi-

res a hugh amount of electrical

energy. Feed water needs to be

pressurized in order to exceed the

osmotic pressure. Typical salt

contens between 35,000 and

45,000 ppm require operating

pressures upto 70 bar.

Whereas the drinking water frac-

tion, passes the membrane, leaves

the system at atmospheric pres-

sure, the saline concetrate still is

high pressurized. By means of

energy recovery devices 30% of

the energy can be reused. In prac-

tice two systems are common.

PRESSURE EXCHANGERS

Presssure energy from high con-

centrate-level is transfered to the

low pressure feed water stream

while both streams pass the pres-

sure exchanger device.

TURBINES

Pressurized concentrate drives a

pelton turbine which is mounted

with high pressure pump on same

shaft. The turbine transformes the

pressure energy and supports the

high pressure pump motor.

Sea and brackish water desalination as turn key solution

pre-filtration of feed water to eliminate suspen-

did solids and antiscalant dosing station to

bound water hardnesss.

Maritime desalination systems

Maritime Desalination Units Vessel ● Barge ● Jack-up

Maritime seawater desalination systems are flexible and may serve different locations with

drinking water in parallel. Every desalination vessel is designed tailor-made according to the

application`s requirements → please ask for details

■ no land consumption

■ mobile systems, e.g. regular shuttle service of drinking water ships

■ self-sufficient energy supply

■ turn-key-solution

■ finacing options

Barge

Barges for various capacities may cruise along a

coast line from port to port providing smaller

volumes of drinking. Drinking water is pumped from

the barge to a suitable storrage tank.

Barges are designed to provide small settlements

near the coast with fresh drinking water.

Jack-up

Jack-Up series are self-propelled vessels which

move to the position of desalination. On site the

Jack-up fixes its four legs on sea floor and lifts up

the plattform for operation. A Jack-Up can be fully

customized to owner’s specific requirements and

provide modern accommodation layout for the ope-

rating crew. The modular building-block design is

redundant system. For maintenance works or

during times of low water consumption

single trains can be taken out of operation without

shut down the total Installation. This guarantees a

high availability throughout the year.

Vessel

Vessels for various capacities produce large

drinking water volumes off shore. In a habour

drinking water is unloaded to sufficient storrage

tanks and drinking water distribution systems

SOBEK-Tec GmbH Water Technology

We are specialized in sea-

water and brackish-water

desalination to provide

drinking water and process

water of best qualities.

Our engineeering team

design land-based and mari-

time systems as well.

We have extensive experi-

ences in building, operating

and maintaining stationary

and mobile water treatment

installations and drinking

water vessels and facilities.

www.sobek-tec.de

contact

Dipl.-Ing. Hans-Ulrich Baldes

Tel: +49(0)15202925741

FAX +49(0)2405455185

mail hub@sobek-tec.de

SOBEK-Tec GmbH

SOBEK-Tec improves your water

Mobile equipment for brackish water treatment

As combination process of filtration, conditioning, desalina-

tion and disinfection SOBEK-Tec provides mobile systems

to produce drinking water from well, lake and surfacewater.

Systems are designed according to the applications.

drinking water trailer

up to 7 m³ per day

• gravel and activated

carbon filtration

• disinfection by electrolysis

• desalination by small RO • conditioning

Up to app. 300 m³/day drinking

water capacity can be installed

in insulated and air conditioned

containers.

Systems consist out of the well

pump equipment, pre filtration,

chemical dosing stations, fine-

filtration, high pressure pump,

pressure vessels with reverse

osmosis membranes, buffer

tanks and booster pumps to

distribute drinking water and

provide it to the consumers.

From 100 m³/day and more

drinking water perfomances

energy recovery devices (e.g.

turbines and pressure

exchangers) are built in to

optimize power consumption.

Container systems are provi-

ded ready for use. On site

feed water and power lines

need to be connected.

All equipment is arranged for

easy operation and mainte-

nance work.

Containerized water works for sea water desalination