村镇生活污水快速渗滤工艺运行优化试验分析.pdfVIP

Abstract With the rapid development of social economy, population increasing and the urbanization process accelerating, our countrys problems of water also seems particularly outstanding, it is mainly shown in two aspects: that is the shortage of water resources and water environment pollution, one of the most serious problems is water pollution. The ecological treatment mode can treat sewage nearby, the construction of facilities is flexible and the investment is small. Therefore the ecological treatment can be used as a beneficial supplement of Sewage concentration processing mode and it has important significance. CRI system is considered as a kind of biological-ecological treatment technology. CRI, as a simple, low investment, and operation cost-effective process, has a significant effect in the treatment of municipal sewage and polluted surface water and has a good full-scale application. But the total nitrogen and total phosphorus removal efficiency is poor. Besides, the filter is easy to be blocked. Therefore, the enhancing requirements on water quality limit its application and promotion. In order to solve the two major problems, we conduct the study, combined with the research status at home and abroad. We have adopted sand, zeolite sand, steel slag and clay Ceram site as the percolation medium, and changed the traditional mode of water distribution into double influent and seted the outtake, three CRI columns were designed to domestic waster water treat, which from the drainage pipe in Yanshan Campus of Guilin University to of technology. Good results were obtained, the following aspects have been studied and concluded: 1. Decontamination effect tests show that: which adopted traditional water distribut