Views:2 Author:Site Editor Publish Time: 2017-05-11 Origin:Site
There are two reasons lead to the lack of sewage treatment technology and process:
1) The misconceptions in the selection of sewage treatment process. At present, there are serious copycat phenomenon that some regions and cities in terms of the choice of wastewater treatment process. Most units or departments just blindly pursue new equipment and new technology. With the region's sewage quality, sewage discharge, sewage decontamination and re-use of sewage after the actual situation out of line. It can not effectively play the advantages of new equipment or new technology and produce a new waste phenomenon. The new equipment or new technology operating costs increased significantly.
2) The shortage of the sewage treatment technology. At present, the main problems existing in the sewage treatment process in China was not enough technological innovation and technology supply, but the process on the key technology is not strong enough. Especially sludge harmless treatment technology is difficult to meet national standards. The standard for effluent should be substantially meet the standard, mainly due to improper sludge disposal in the sewage treatment process. It is mainly due to improper sludge disposal in the sewage treatment process. Improper sludge treatment can easily lead to secondary environmental pollution. Some areas in the absence of rigorous testing by the relevant testing departments, free to use the sludge as a green fertilizer will also pollute the soil.