Urban Sewage Treatment Technology And Construction Mode

For the mordern urban development and the conservation of water resource, urban sewage treatment is very necessary . Nowadays there have been many mature experiences in the urban sewage treatment in the developed countries, but the sewage treatment facilities are very lagged in our country. To change this situation, the urban sewage treatment need more time, hortative policy,capital and practical technology. In the thesis, the sewage treatment situation in domestic and abroad have been compared and by a technological and economic analysis, a practical construction mode of BOT has been put forward and explored and a practical engineering example has been dicussed.By the analysis and discussion of practical example, the results show that it is feasible to introduce the BOT mode into the industry of urban sewage treatment, which will quicken the step of urban sewage treatment in our country. Though there exist many problem in the BOT mode application in the construction of urban sewage treatment, the government should encourage the popularization of this mode and stipulate some favorable policy to stimulate and boost the construction of urban sewage treatment.