Village Life Pollution Characteristics Of The Water Source Protection Zones And Control Measures

Many domestic research indicated that environmental pollution from the villages and small towns has already affected the local environment as well as the water body.At present,domestic research about the villages and small towns pollution is not universal,study regions also mainly concentrate in several big basins,the research content mainly concentrates in two aspects,which are the pollution characteristic and the government measure.The research of pollution characteristic is also quite insufficient.As to the villages and small towns pollution,it is quite necessary for sanitary sewage's technical study whereas involves little attention? in trash aspect. This paper chooses the Miyun Reservoir upstream basin as study region,3 different types of villages in the research area was set by methods of investigation,experiment analysis as well as technological designing,to study pollution characteristic of the villages and small towns.Then it proposes the government research area villages and small towns environmental pollution plan and the craft,draws the following conclusion:1) The Miyun Reservoir upstream basin villages and small towns pollution have already became one the most important sources of pollution which influence the local water body.It can be clarified as the home scrap and the sanitary sewage.2) The Miyun Reservoir upstream basin domestic garbage can mainly be classified into 4 kinds:kitchen trash,the ash dregs,the plastic trash as well as the paper trash. The ordinary village average per person trash coefficient is 8.7 kg·m^-1·person^-1, the tour village is 12.3 kg·m^-1·person^-1,the town level village is 11.7 kg·m^-1·person^-1.In the whole,villages and small towns trash produce is affected by the season and the villages and small towns type a lot,speaking of different families,the home scrap output and the household income have a big relevance.3) The sanitary sewage mainly includes kitchen waste water,washing sewage and bathing sewage.As to the tour villages,not only has the above several kind of sewage, the pisculture waste water output is also one kind of important sewage origin.The town level village also distributes pisculture waste water,but not common.The ordinary village sewage disposal coefficient is 26L·d^-1·person^-1,the tour village is 118 L·d^-1·person^-1,the town level village is 39 L·d^-1·person^-1.All types of villages inside the research area make the largest sewage output during the seasons of summer and autumn,and have 4 output peaks a day.4) After some amelioration on the present commonly used craft,the countryside garbage disposal craft flow draft suitable for the local villages and small towns is proposed,combining the home scrap characteristic and the natural economy society condition in the research area.Then the detailed technological design is made for one of the villages.5) The villages and small towns sanitary sewage characteristic as well as the natural economy society condition are considered together.Through the discussion on each craft,this paper proposed a rocessing craft which takes the algae pond as the main construction and it suits the research area villages and small towns sanitary sewage demand.Take the Water village as the example,the detailed design calculation has been made.