Improved artificial rapid infiltration integrated device based on agricultural waste carbon slow release enhanced biological nitrogen removal and synchronous phosphorus removal and application thereof

Abstract

The invention discloses an improved artificial rapid infiltration integrated device based on agricultural waste carbon slow release enhanced biological nitrogen removal and synchronous phosphorus removal and application thereof. The device comprises a water inlet tank, a water inlet pipe, a water distributor, an artificial rapid infiltration tank and a water outlet pipe, wherein the water inlet tank is communicated with the water distributor through the water inlet pipe, a peristaltic pump is arranged on the water inlet pipe, the water distributor is arranged at the top of the artificial rapidinfiltration tank, the artificial rapid infiltration tank comprises an upper tank body and a lower tank body which are communicated with each other up and down, and the top of the upper tank body isprovided with an opening, the upper tank body is internally provided with a protective layer, a water distribution layer, a first filter material layer and a capillary blocking layer from top to bottom in order, wherein the lower tank body is in flange connection with the upper tank body, a slow-release carbon source layer, a second filter material layer and a supporting layer are sequentially arranged in the lower tank body from top to bottom, one end of the water outlet pipe is communicated with the bottom of the supporting layer, and the other end of the water outlet pipe is flush with thebottom of the capillary blocking layer. The device is simple in structure and good in nitrogen and phosphorus removal effect on sewage.

Description

technical field [0001] The invention relates to an improved artificial rapid percolation integrated device based on the slow release of carbon from agricultural waste and enhanced biological denitrification and simultaneous dephosphorization and its application, belonging to the technical field of sewage treatment. Background technique [0002] In most rural areas of my country, especially the arid and semi-arid areas in the central and western regions, rural sewage treatment facilities are seriously lagging behind, and the sewage treatment effect is poor, resulting in serious pollution of receiving water bodies, seriously threatening the quality of water resources, and domestic sewage treatment is imminent. In arid and semi-arid areas, the population is small and the distribution is relatively scattered, the amount of sewage is small and fluctuates greatly, and sewage collection is difficult. In addition, the economic level is low, the funds and energy invested in sewage tre...

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