Water pollution prevention and control technology for decompression of water environment

Last week, it was learned from the Ministry of Science and Technology that the major project of “Water Pollution Control and Governance”, which aims to provide comprehensive technical support for national water pollution prevention and control, has been launched since February 2009, and has overcome many urgent needs to address water pollution prevention. The key technologies have improved the scientific and technological level of comprehensive water environment management in China.

Among them, membrane-bioreactor (MBR) is known as one of the most promising water treatment technologies in the 21st century. It has the advantages of high microbial concentration, strong impact load resistance, good effluent quality and direct reuse. MBR strengthen denitrification upgrading sewage treatment plant Taihu Lake area, in addition to phosphorus process and wastewater reuse technology has been successfully used. On this basis, the research group in Wuxi construction of a pilot plant treatment capacity of 100 m3 / day, more than six months to run through, gained significant process design parameters and was constructed in November 2009 to deal with the scale of 2 10,000 cubic meters / day of MBR enhanced nitrogen and phosphorus removal demonstration project. The demonstration project has been running well so far, and the water discharge index fully meets the relevant emission standards, achieving a win-win situation for both environmental and economic benefits.

Starch sugar and fermented amino acids are the main products of deep processing of corn, and are also products that consume more water and discharge large amounts of sewage during the production process. Water Specialized Songhua River Heavy Pollution Industry Key Technology and Engineering Demonstration Group Working with Changchun Dacheng Group, using electrodialysis to remove salt, the tonnage cost of starch sugar is reduced by 22% compared with traditional ion exchange technology; the application of direct crystallization technology, It solves the problem of discharging high concentration wastewater in the lysine production process. The implementation of the project will reduce wastewater discharge in Changchun City by 450,000 tons and COD emissions by 5,000 tons, thus significantly reducing the environmental pressure in the Changchun section of Songhua River. New energy vehicle technology path needs "change line" Tianhuayuan fills the gap of domestic large ethylene cracking furnace field, plant polyphenols replace polyether technology, attracts insulin-producing islet cells, renewable 95% high-concentration electronic grade phosphoric acid technology comes out Bio-environmental plasticizer project passed the appraisal

Machining is any process in which the raw material is cut into a desired shape and sizes by a controlled material-removal process and equipment.