nanofiltration membrane system,nanofiltration for seawater pretreatment

Nano filtration NF membrane  Separation mechanism

NF membrane,as a new separation technology,in the process of separation have two significant features:First,NF membrane separation layer,which consists of polyelectrolyte,under the electrostatic interaction of ion, can separate arange of inorganic substances from solution in a liquid;Second,NF takes in the upper end of reverse osmosis,and thelower end of ultrafiltration,covering MWCO values of 200 to 2000 Daltons.NF membrane surface aperture  at the nanoscale,and the smallest molecular which the rejection rates can reach above 90% is about lnm,so which is called nanofiltration.

Operating feed water specifications

TDS  :  Unlimited

 Total Hardness: Unlimited

Oil:Recommended<5mg/L

Oxidizers:Active Chlorine<0.1mg/L   

SDI:<5mg/L           

PH:4-9

Water Temperature:5-45

NF Typical Applications

NF membrane can be widely sued in the chemical industry,the petroleum industry,the metallurgy industry,power plants,the pulp& paper industry,the dyening industry,the pharmaceutical industry,the electronics industry,the semiconductor industry,the automobile  industry and otherindustries,for water softening,Low molecular organic classified comcentrate, water deionization and purification and comcentrate.

Applications Type 1: want the permeate

Water softening

Brine denitration

Reclaimed water reuse

Seawater Pretreatment

Waste water treatment

Drinking water to remove impurities(including high salinity,high hardmess and toxic carcinogenic substance etc.)

Applications Type 2:Want the concemtrate

Pharmaceutical concentration areas,f

ood industry(sugar,protein,fruit juice etc.)

Metal recovery(Copper,gold and silver edc.)

Recycling all kinds of additives

Applications Type 3: want the concentrate and permeate

Pharmaceutical separation And purification

Chemical material separation

Concentrate and separation for wastewater zero discharging

Quality Assurance

(1).Pre-shipment testing and commissioning and machine inspection

(2).Non-destructive testing of welds according to specifications before delivery

(3).Warranty:2year

Haiyuan factory real photos

Sherry Wei (Sales manager) 

Mobile: ++86-139 2297 2795

Skype ID: water_hy 

Wechat: ++86-139 2297 2795

Whatsapp: ++86-139 2297 2795