Advancement of water treatment technology based on membrane power

Membrane water treatment technology has broad development future. However, Membrane material as its core has great technique difficulty.
Based on membrane materials, membrane technology can be divided into organic membrane and inorganic membrane.
Organic membrane, also called macromolecule separation membrane, is a thin membrane made by polymer or macromolecule composites, and functions to separate fluid mixtures.
Inorganic membrane is a semipermeable membrane made by inorganic materials like metal、metallic oxide、ceramic、zeolite、porous glasses etc.
Inorganic membrane separation technology is one of the advanced technologies rapidly developing in the world for current years, and has showed its outstanding advantages and promising futures in chemical engineering、food、medicine and environment protection industries.

Inorganic membrane PK organic membrane
Weakness of organic membrane:

Organic membrane is easy to be absorbed、eroded or even dissolved by organic dyes and chemical reagents, which may affect pollution resistance、separation result and application scope of membrane and lower utility span and even produce secondary pollution.

Advantages of inorganic membrane:

①Excellent chemical stability

②Wide temperature limits

③Strong pollution-resistance

④High mechanical strength

⑤High separation efficiency

⑥Utility span 3-5 times organic membrane

Replacement of organic membrane with inorganic membrane is developing advantage of Chinese water treatment process

BOCENT created Chinese inorganic plate ceramic membrane technology and led Chinese water treatment technology revolution

Inorganic ceramic membrane is asymmetrical membrane made by inorganic ceramic materials with special process. It is mostly showed with tubular form and multichannel form with micro holes densely covering tube wall. Under pressure, feed solution flows in membrane tube or in the outside of membrane, and micro-molecule matters (or fluid) permeates membrane, macro-molecule matters (or solids) are prevented by membrane, to achieve separation、concentration and purification.