Mobile green roof type anti-blocking wastewater treatment technology

Abstract

The invention provides a mobile green roof type anti-blocking wastewater treatment technology, which comprises the following steps: removing suspended solids from wastewater through a grating chamberC1 and homogenizing through a regulating reservoir C2; guiding wastewater to flow by an aerobiotic pond O1, an anoxic pond A1, an anaerobic pond A2 and an aerobiotic pond O2 in turn, for performing enhanced OAAO treatment; guiding wastewater to pass by a denitration filter chamber B1 and a phosphorous removing filter chamber B2 in turn, for deeply treating; adopting a real-time fine regulation system for monitoring nitrogen and phosphorus removal effects and remotely adjusting internal running state of the technology. According to the invention, the enhanced OAAO treatment is adopted, so thatbackflow of mixed liquor can be avoided; a special structure of biological film filler in the aerobiotic pond O1 is beneficial to promoting oxygen mass transfer efficiency and use ratio of oxygen; anti-blocking structures in the denitration filter chamber and the phosphorous removing filter chamber can effectively solve the blocking problem of filter chambers; a mobile constructed wetland is arranged on the top of pond; due to the combination of biological, chemical and ecological treatment, the treated water can reach level A; the technology has the advantages of impact load resistance, excellent treatment effect, running stability, low cost, and the like, and is suitable for treating domestic wastewater.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a movable green-top anti-clogging sewage treatment process. Background technique [0002] At present, with the development of my country's economy, environmental protection issues, especially domestic sewage treatment, have become a research hotspot in various countries, and the country's discharge standards for sewage treatment plants are becoming more and more stringent. In response to the national call for energy conservation and emission reduction, various sewage treatment plants have improved the quality of effluent water after treatment from the first-level B standard in the original "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002) to first-level through standard upgrading and transformation. A standard. [0003] The AAO process is composed of anaerobic zone, anoxic zone, aerobic zone, sedimentation zone and two reflux systems. The ...

AI Technical Summary

Problems solved by technology

However, after the biological filter bed has been in operation for a period of time, due to the increase of suspended solids in the filter, the increase of biomass, the increase of filtration resistance and head loss, and the blockage of the filler, the treatment efficiency of the filter is significantly reduced. Backwash the filter to restore the capacity of the filter

However, the operation of the backwashing device is complicated, and the concentration of suspended solids in the wastewater generated after washing is high, which requires further treatment and increases operating costs.

Images