The Investigation And Research On Artificial Rapid Infiltration System

With the rapid development of our country's economy,the increase in population and the acceleration of urbanization,water resource in our country is faced with serious problems,Mainly manifested in two aspects:water resource shortage and water environment pollution,the water pollution problem is particularly prominent?Water pollution comes mainly from social production and people's life,urban sewage as part of the wastewater source,than column of wastewater is more and more high in recent years?As the medium and small town wastewater treatment method,land treatment method has been widely used in effective,The artificial rapid infiltration system(CRI)due to its simple process?low cost?high water effect is good wait for an advantage,so it is called a simple and effective water treatment,wastewater treatment process with good effect by being repeated application to practical engineering?But the artificial rapid infiltration wastewater treatment process is easily blocked and fast permeability due to congestion pool substandard effluent water quality at the same time?In view of the jam problem of artificial rapid infiltration wastewater treatment process,this article through to research study of artificial rapid infiltration sewage treatment plant in small and medium-sized towns in Chongqing?To the actual operating status of artificial rapid infiltration sewage treatment plants,process type,water quality treatment effect,fast permeability pools congestion through statistical analysis,analysis of fast permeability pools blockage effect on water quality treatment effect and the reasons for the fast permeability pools jams?Survey data analysis:according to the actual operation of artificial rapid infiltration sewage treatment plant process mainly exist in the early stage of the pretreatment process,fast permeability pool filter material,the late pretreatment differences?If there is a pretreatment technology,as well as pretreatment process is normal operation;Fast permeability pool filter material selection and fill is reasonable;Fast permeability pool operation parameters(hydraulic load,hydraulic load cycle)is appropriate;Whether fast permeability pool maintenance timely and properly;Whether factors,such as technology of post-processing treatment effect of artificial rapid infiltration sewage treatment process?In research on four of the sewage treatment plant(two fast permeability pool jams,two fast permeability pools not jam)has a typical representative of the plant,based on the analysis of the process type,filter material composition,fast permeability pool operation parameters,fast ooze late pool maintenance,fast permeability pools congestion and congestion reasons,on the basis of the proposed fast permeability pools congestion is the main cause of effluent water quality cannot meet the design standards?Fast permeability in order to avoid the artificial rapid infiltration sewage treatment process pool of congestion,making water quality standard,not only need the right filter material,hydraulic load and hydraulic load cycle,artificial rapid infiltration treatment process in the early stage of the need for water quality type preprocessor facilities,such as flocculation precipitation,the hydrolysis acidification pretreatment facility?Fast permeability late pool maintenance needs in a timely manner to fast ooze mud pool surface,adopting reasonable cycle to turn fast ooze pool surface filter material,,thus ensuring fast permeability pools normal and efficient operation.