Combined type biological rotating disc treatment device

Abstract

The invention discloses a combined type biological rotating disc treatment device. The combined type biological rotating disc treatment device comprises a first filtering pond, a first settling pond, a second settling pond, an aeration tank, biological rotating discs, a third settling pond and a water storage pond, all of which are sequentially arranged. A water inflow pipe is arranged above the first filtering pond, the bottom of the first filtering pond communicates with the bottom of the first settling pond, and the first settling pond communicates with the second settling pond through a low-position water pipe. A high-position water pipe is arranged at the upper portion of the second settling pond. A waterwheel is arranged in the aeration tank and provided with multiple first blades, the first blades correspond to the high-position water pipe, the waterwheel is coaxial to a chain wheel, and the chain wheel is connected with the biological rotating discs through a chain. A first aeration pipe is arranged at the lower portion of the waterwheel. The first filtering pond and the two settling ponds of the device can remove most solid impurities in sewage, and the treatment difficulty of the part of the biological rotating discs is reduced. The sewage and aeration can push the waterwheel to rotate at the same time, the aeration amount in the sewage can be increased, power can be supplied to the biological rotating discs as well, and later operation cost is not needed.

Description

technical field [0001] The invention relates to the technical field of biological treatment of township sewage, in particular to a combined biological turntable treatment device. Background technique [0002] In sewage biological treatment equipment, biological turntables have been used since the 1950s and 1960s. Biological turntables are a biofilm wastewater treatment technology. Microbes with a long survival time can grow on the biological disks, and the sludge age is long. It has a long resistance to impact load capacity and has good handling effect. In terms of process operation, biological discs have the advantages of high microbial concentration and no need for reflux of sludge. However, the traditional biological discs have problems such as low organic load, poor sanitary conditions, poor nitrogen removal effect, and continuous investment in operating costs in the sewage treatment process. Contents of the invention [0003] In order to solve the above technical pr...

AI Technical Summary

Problems solved by technology

However, the traditional biological discs have problems such as low organic load, poor sanitary conditions, poor denitrification effect, and continuous investment in operating costs in the sewage treatment process.

Images