Process for recycling wastes in sewage treatment

Abstract

The invention discloses a process for recycling waste in sewage treatment, which comprises the steps of separating waste water from waste through a screening tank, precipitating mud in a precipitationtank of the screening tank, sucking the mud by using a mud pumping device, and removing metal, starting a speed reducing motor to perform rotary push type extrusion on the mud pumped into the mud pit, then the mud is dehydrated into powder, the powder is collected and reused, and meanwhile, purified water in the precipitation tank tank overflows into an MBR membrane treatment tank to be thoroughly purified and collected. Waste and waste water of sewage of the primary treatment system are separated through the screening tank, so that the waste water is precipitated and purified in the screening tank and the precipitation tank, the precipitated mud is pumped into the mud pit through the mud pumping device, metal removal and purification are conducted on the mud, and the mud entering the mudpit is dehydrated and extruded into powder and is collected for later use, so that the treatment process enables the mud to be recycled and has popularization value.

Description

technical field [0001] The invention relates to the technical field of water pollution treatment, in particular to a waste recycling process in sewage treatment. Background technique [0002] With the continuous expansion of urbanization, urban sewage treatment is one of the main problems. The conventional solutions include sedimentation method, microbial degradation method and MBR membrane bioreaction method, among which MBR membrane is currently a commonly used product in urban sewage treatment. MBR membrane has good sewage treatment effect, good solid retention effect and long service life. Since most of the urban sewage is domestic water, its mud contains fertile soil elements such as various microorganisms. If it is used to improve the land, waste can be reused. However, most sewage treatment plants focus on the purification and reuse of sewage, separating or The solids such as the intercepted mud are collected and buried for treatment. The existing sewage treatment pr...

AI Technical Summary

Problems solved by technology

Since most of the urban sewage is domestic water, its mud contains fertile soil elements such as various microorganisms. If it is used to improve the land, waste can be reused. However, most sewage treatment plants focus on the purification and reuse of sewage, separating or The solids such as the intercepted mud will be collected and buried for treatment. The existing sewage treatment process does not have a high utilization rate of waste and cannot realize the reuse of waste.

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