Membrane Separation Water Treatment Technology Services

Membrane separation technology refers to the use of biofilm material separation, impurities in water removal, to achieve the purpose of purification treatment. The technology services of membrane separation water treatment provided by BOC Sciences have improved our technical support for sewage treatment.

How Membrane Separation Technology Works

In industrial production, food processing or daily life, membrane separation technology is used as a prerequisite for the treatment of different water qualities in the form of microfiltration, ultrafiltration, nanofiltration, electrodialysis, osmosis, etc., so that some harmful substances can be removed from the water. The water quality obtained by this separation technology is so good that it can also be used as drinking water for people.

Fig. 1 Membrane-adsorption systems for water treatment. ^[1]

Technology Services of Membrane Separation

As water treatment specialists, we can provide you with membrane separation technology related services.

Industrial wastewater treatment services

1. Saline industrial wastewater

Membrane separation technology used for salt removal mainly includes reverse osmosis technology, which can recover useful substances in wastewater while removing salt and achieve resource utilization of wastewater, with the advantages of high water utilization rate, easy control of desalination process and strong adaptability to changes in brine concentration.

Industrial wastewater treatment process with high salt content:

a. Conduct elemental and compositional analysis of industrial wastewater, choosing our water analysis services;

b. According to the analysis data of industrial wastewater, choose the relative pretreatment methods, the common pretreatment methods are by sterilization treatment, coagulation and precipitation, etc., try to remove the relevant substances that are insoluble in salt and avoid the extreme factors to have adverse effects on the membrane.

c. The wastewater after the pretreatment is completed by membrane separation technology.

2. Treatment of industrial wastewater with toxic and harmful substances

Membrane separation technology can be used to treat harmful substances produced by textile dye production, paper production and food production or useful components in waste water that need to be recycled. The commonly used technology is ultrafiltration membrane separation technology. Ultrafiltration membrane can retain macromolecules, colloids, bacteria, etc. in water, and overlap with reverse osmosis membrane in the small pore size range and with microfiltration membrane in the large pore size range, and its retention mechanism is mainly sieving effect.

Domestic sewage treatment services

Membrane separation technology is applied in the municipal sewage treatment process. The principle of screening is adopted, and the pressure difference is used as the thrust force to realize membrane separation. But it can filter out small particles, is relatively safe and reliable filtration technology.

How to improve the Properties of Membrane Separation

• Water treatment membrane should enhance the anti-microbial reproduction ability of water treatment membrane to ensure the effect of water treatment;
• Increasing the membrane flux can improve the treatment efficiency of water treatment membrane and increase the service life of water treatment membrane. Generally, the membrane flux can be increased by increasing the effective distribution rate of pore size and physicochemical stability.
• Improve the mechanical strength of the film, so that it is suitable for a variety of harsh application scenarios.

If you are interested in our services, please feel free to contact us.