Multifunctional stereo comprehensive treatment and recycling system for urban sewage

Abstract

A multifunctional stereo comprehensive treatment and recycling system for urban sewage relates to urban sewage treatment equipment, integrates tertiary sewage treatment and landscape greening, and has the advantages of few occupied areas, low energy consumption, high treatment efficiency, recyclable discharged water and the like. The multifunctional stereo comprehensive treatment and recycling system for urban sewage comprises secondary treatment equipment and tertiary treatment equipment. The secondary treatment equipment comprises a sewage hoisting shaft, a water collecting tank, an adjusting tank, an acid-base feeding device, a coagulation reaction tank, a coagulant feeding device, a primary sedimentation tank, an anaerobic filtering tank, an aerobic filtering tank, an air blower, a secondary sedimentation tank, a sludge thickener, a sludge pressure filter, a filter-press water collecting tank, a clear water tank, a lift pump, a deodorization filtering tank, a quartz sand filter, acartridge filter, an ultrafiltration column, a thick water temporary storage tank and a heavy metal recovery device. The tertiary treatment equipment comprises a clear water lift pump, a perforated water distributor, a wetland planting area, a filtering tank and a reservoir. The sewage hoisting shaft is externally connected with a civil sewage outlet.

Description

technical field [0001] The invention relates to an urban sewage treatment device, in particular to a multifunctional three-dimensional urban sewage comprehensive treatment and reuse system. Background technique [0002] Traditional wastewater treatment facilities have disadvantages such as large land occupation, high cost, and long construction period, which are far behind the development speed of township industries and urban residential areas. At present, all countries are seeking to develop efficient, multi-functional, energy-saving, compact (land-saving) and easy-to-operate and manageable wastewater treatment technologies. It is expected that sewage, especially urban sewage, will be treated with simple grids and primary sedimentation, and then treated with high-efficiency biological After being treated with the ecological joint process, the water quality standard for discharge or reuse can be reached. This will greatly save construction investment and operating costs, m...

AI Technical Summary

Problems solved by technology

However, common constructed wetlands mostly use annual or perennial herbaceous wetland plants to treat wastewater, which requires frequent harvesting, which is labor-intensive, time-consuming and likely to cause secondary pollution, while using perennial woody wetland plants such as mangroves for wastewater treatment can not only Effectively remove wastewater pollutants for a long time, save investment in harvesting, and provide perennial green landscape for nearby residents

Images