The Application of Ceramic Membrane in Wastewater Treatment

The rapid progress of the era of large-scale industry has comprehensively driven the development of the national economy, and the large amount of industrial wastewater discharged cannot be ignored. With the proposal of sustainable strategies, various industries are increasingly paying attention to the standard discharge of wastewater. Ceramic membrane separation is a new efficient and precise separation technology. As a cross combination of material science and medium separation technology, Ceramic membrane has the characteristics of energy saving, efficient separation, normal temperature operation, pollution-free, etc. Ceramic membrane has been widely used in wastewater treatment and has a broad development prospect.

We all know that industrial wastewater generally has strong acidity and alkalinity, contains organic solvents and other particularities, and traditional organic membranes are usually difficult to adapt to such harsh and complex conditions, while Ceramic membrane can fully operate stably in these extreme environments for a long time due to the advantages of their materials. Moreover, Ceramic membrane also performs well in printing and dyeing wastewater treatment and coal tar purification treatment.

1. The Application of Ceramic membrane in printing and dyeing wastewater treatment:

As the main pollution source of COD (chemical oxygen demand), printing and dyeing wastewater and papermaking and pulp industrial wastewater not only discharge large amounts, but also have high concentrations of SS and COD. Compared to traditional treatment methods, using ultrafiltration ceramic membrane technology to intercept COD and lignin not only has a higher filtration retention rate, but also achieves direct recovery and reuse of permeate.

2. The Application of Ceramic Membrane in coal tar purification treatment:

Coal tar is a liquid product obtained in the process of carbonization and gasification of coal. The directly extracted coal tar contains a large number of toxic compounds, and the toxic gas generated when directly used as crude fuel will cause serious pollution. Ultrafiltration Ceramic membrane technology has the advantages of high mechanical strength, strong acid and alkali resistance, good temperature resistance, uniform pore size distribution, long service life, etc. When filtering and purifying coal tar, Ceramic membrane can be used to separate impurities in coal tar very well, which not only has high removal rates of ash, heavy metals, water, but also has good removal effects on impurities such as salt and chlorine, and the quality of coal tar has been greatly improved.

As a new, efficient and precise separation technology, Ceramic membrane separation technology has been given more application space in the field of water treatment. With the increasing severity of water pollution, Ceramic membrane separation technology will have a broader development prospect.