Medium And Small Town Wastewater Treatment Mode And Process Research

Since the reform and opening up, China’s economy has been developing by leaps andbounds, many small and medium-sized town economy into the continuous, healthy andorderly development period, the construction of small towns, to promote China’surbanization, meaning greater. However, quick economic has also brought many adversefactors, among which one is bad, serious water pollution due to economic development,industrial and mining enterprises in the trot construction and retrofit produced in waterpollution has increased, at present, our country small and medium-sized town especiallyserious water pollution, appropriate sewage treatment process short, even if some localconstruction the sewage treatment facilities, but because of improper selection process, andother factors, the sewage is not expected the treatment effect. Secondly, many local blindlypursue the traditional sewage treatment mode, capital investment in the construction oflarge or operation cost is too high, making the sewage treatment facilities be purchaseddream, or become image project.Aiming at the problems of small and medium-sized towns, and carried on the detailedanalysis. Put forward for sewage treatment mode, can’t ideologism, and should be based onthe actual situation, choose the most practical wastewater treatment mode. This paperintroduces the centralized sewage treatment and decentralized wastewater treatment modeof the basic concepts and reuse methods, basic characteristics, research progress at homeand abroad, and that the suitable for China’s small and medium-sized town sewagetreatment mode. Secondly, this paper describes the for medium and small town wastewatertreatment more applicable process: UNITANK process, Mr Bell oxidation ditch technology,CASS process, aeration biological filter, contact oxidation method, constructed wetlandtechnology and oxidation pond process. And the engineering examples are enumerated,and the different scale of the sewage treatment process scheme in the comprehensiveevaluation, through the comparison of the advantages and disadvantages of differentprocess, applicable scope, etc., are suitable for medium and small town wastewatertreatment mode and process the author puts forward his own opinion and the suggestion,and draw, adhering to the attitude of seeking truth from facts, choosing the most suitablefor medium and small town wastewater treatment mode, select the most powerfulwastewater treatment process, and to the construction of medium and small townwastewater treatment business provide strong guidance.