3. Microfiltration and ultrafiltration membrane technologyBasic PrinciplesBoth ultrafiltration and microfiltration are liquid phase separation processes driven by differential hydrostatic pressure, and there is no fundamental difference in principle. Under a certain pressure, when a mixed solution c Read More

1. Forward Osmosis (FO) technologyThe principle of forward osmosis (FO)The solvent is separated from the solution by a semi-permeable membrane that can only pass through the solvent but not the solute molecules. The solvent molecules will spontaneously pass through the membrane from the solvent side Read More

What is a split membrane bioreactor?Separate membrane bioreactors use the membrane module as a separate unit from the bioreactor, the mixture is pressurised by the system into the membrane module, the permeate of the membrane module is the effluent of the system and the concentrate of the membrane m Read More

Water Treatment ApplicationsDrinking water treatmentWith the development of the economy and society, the water environment has become more polluted, the water quality has deteriorated, and there are more and more pollutants in the water, especially organic pollutants. The traditional drinking water Read More

Ultrafiltration is used in water treatment and other industrial purification, concentration and separation processes, either as a pre-treatment for the process or as a deeper treatment for the process. In widely used water treatment processes, it is often used as a means of deep purification. Accord Read More

The principle of ultrafiltration water treatment is a membrane separation and filtration technique using a certain pressure difference as the driving force, UF ultrafiltration membrane modules are mostly made of polymeric materials. Most suitable for the separation and thickening of solutes in solut Read More

Ultrafiltration (UF) technology is a membrane separation technology between microfiltration and nanofiltration, with an average pore size of 3~100 nm, and has the function of purification, separation and concentration of solutions. Its retention mechanism mainly consists of membrane sieving and elec Read More

PTFE (Polytetrafluoroethylene, trade name "Teflon", commonly known as "King of Plastics") was discovered in 1932 by Dr. Roy Plunkett, who came to the United States after graduating from DuPont to work on organic fluorine. In the summer of 1938, he discovered the white powder polymer polytetrafluoroe Read More

Membrane separation technology is a technology that uses the selectivity of the membrane (pore size) and the energy difference between the two sides of the membrane as the driving force to achieve separation due to the different mobility of the components in the solution through the membrane. As the Read More

1.Deep drinking water purificationNF membrane was first used in the drinking water treatment industry, mainly for water softening, NF membrane for divalent and multivalent ion retention rate can reach more than 90%, for monovalent salt retention rate of 10% ~ 90%, the characteristics of NF membrane Read More

NF membranes originated in the 1970s with the development of thin-layer composite RO membranes and in 1978, Cadotte et al. prepared the first thin-layer composite polyamide NF membrane using piperazine (PIP) and 1,3,5-homophthaloyl chloride (TMC). It has been widely used in water and wastewater trea Read More

Compared to hollow fibre membranes, mbr flat membranes are more advantageous because they have better resistance to pollution and generally do not break, and the cleaning cycle is longer than that of hollow fibre membranes, and most importantly, the cost is lower. Advantages of flat sheet membranes Read More

MBR membrane modules are nowadays one of the major pieces of equipment in wastewater treatment. What checks and preparations should we make before the MBR membrane modules are installed and running?Checking and setting1. first we have to confirm that the connection of the effluent and air pipes is c Read More

The MBR membrane method is now being used more and more widely and is attracting attention for its stable and clear effluent, so let's find out how to clean and maintain it. 1. In the case of conditions, in order to reduce the work intensity, can achieve the entire membrane component cleaning, which Read More

Ⅳ. Reverse osmosis (RO) membrane technology1. Reverse osmosis (RO) principleReverse osmosis is a pressure driven membrane separation process in use to produce reverse osmosis pressure needs to be pumped to saline solution or wastewater pressure to overcome the natural osmotic pressure and membrane r Read More