Views: 12 Author: Site Editor Publish Time: 2019-12-21 Origin: Site
The membrane biofluidization bed process (MBFB) based on the biofluidized bed, which takes powdery activated carbon as the carrier and the inorganic ceramic membrane solid liquid separation technology, is a wastewater biochemical treatment technology combining conventional activated sludge method and biofilm process. Based on the standard discharge of raw sewage, the turbidity of chemical oxygen demand (NHD) can be further reduced through the biofluidization bed and ceramic membrane separation system. On the one hand, it can be reused directly, on the other hand, it can also be used as a pre-treatment process for reverse osmosis desalination treatment, replacing the original sand filtration, safety filtration, ultrafiltration and other lengthy filtration process. At the same time, the reduction of organic content has been greatly improved. The long service life of the reverse osmosis membrane reduces the cost of water return treatment.
Filter separation technology is one of the most important technologies to achieve energy saving and emission reduction. In many filtration and separation materials, high-performance flat-panel ceramic membrane materials are resistant to high temperatures, high pressure, chemical corrosion and high filtration efficiency. Many excellent characteristics, such as long service life, have become a new type of environmental protection energy-saving filtration separation material, which has been widely used in energy conservation and emission reduction, high temperature gas purification and high temperature purification two important fields. Treatment.
Wastewater treatment and zero-pollution discharge sit as another important component of energy conservation and emission reduction. Membrane separation technology, as one of the main development directions of international water treatment technology, has been widely used in water treatment technology in recent years. As one of the three large film materials, flat ceramic film has the advantages of high filtration precision, long service life, good water quality and stable operation, and the water treatment technology of the power station and its application plant process water treatment and industrial wastewater, urban sewage treatment and so on are widely used.
If a flat ceramic film of 0.1 m is used to treat high concentrations of oily wastewater, the oil content is less than 1mg /L, and the service life is up to 5 years. When the printing wastewater is treated with 0.2 m ceramic film, the color and COD removal rates exceed 90% and 85%, respectively. Especially in recent years, the water treatment technology of MBR membrane bioreactor has the function of membrane separation technology and bioreactor, which can effectively realize the recovery of urban sewage and the treatment of industrial wastewater, and solve the problem of urban water shortage. Due to the good quality of wastewater, low operating costs and high degree of automation, many advantages are becoming one of the most promising technologies in the field of water treatment.