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Reverse Osmosis Plants

30 m3/h TWRO plant (stainless steel)

20 m3/h BWRO plant

3 m3/h BWRO plant

LennRO Systems

Lenntech engineers design and build tailor-made reverse osmosis and nanofiltration plants.

Our skid-mounted reverse osmosis plants range from tapwater, brackish water to seawater desalination and cover all type of application including drinking water, irrigation water and process water.

Compact BWRO plant < 500L/h
Small size BWRO plant < 1500L/h
Medium size BWRO plant < 3500 L/h
Large size BWRO plant < 70 m3/h

SWRO small plants < 2 m3/h
SWRO large plants < 100 m3/h

Plants above 70 m3/h must be multiple-skid mounted.

Turnkey and tailor made RO plants.

In most cases, a RO plant must be preceded by a proper pre-treatment to avoid membrane fouling by sediments, hardness, organic matter, bacteria, silica, metal oxides or even chlorine.

Also, RO permeate water is often more acidic than the feed water due to dissolved carbon dioxide. Common post-treatment are pH neuralisation and remineralisation

General design data for Reverse Osmosis Plants:

TWRO
Tap water
BWRO
Brackish water
SWRO
Sea water
Salinity < 1500 ppm < 8000 ppm 35000 - 45000 ppm
Recovery 80% 65-80% 35-45%
Working pressure < 15 bar 15-25 bar 50-75 bar
Membrane types Tap/Brackish 4" or 8" Seawater 4" or 8"
Flux 30-35 l/h.m2 25-30 l/h.m2 15-20 l/h.m2
Specific energy at 25 oC < 0.75 kWh/m3 1.5 kWh/m3 5 kWh/m3 or 2-3 kWh/m3 with energy recovery
Configuration Skid mounted or containerized (10 to 40 ft)

What is reverse osmosis?

Reversed Osmosis membrane cleaning

Seawater desalination

Reverse Osmosis membranes

Reverse Osmosis membrane cleaning







Lenntech BV

Rotterdamseweg 402 M
2629 HH Delft
The Netherlands

tel: +31 15 261 09 00

fax: +31 15 261 62 89

e-mail: info@lenntech.com











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