Environmental protection toilet flushed by circulating water and toilet sewage processing method

Abstract

The invention which discloses an environmental protection toilet flushed by circulating water and a toilet sewage processing method belongs to the sewage processing field. The environmental protection toilet flushed by the circulating water comprises, successively connected, a raw water pool for receiving toilet flushing water, a biological processing tank for carrying out biological denitrogenation processing on the toilet flushing water, a processing wastewater pool for storing processing wastewater, a processing wastewater supply system for supplying the processing wastewater as the toiletflushing water, and a wastewater circulation system for circulating the processing wastewater in the processing wastewater pool to the biological processing tank, wherein the biological processing tank comprises, successively connected, a denitrogenation tank, a nitration tank, an immersive membrane separation apparatus and a nitration liquid circulation system, and has a prepared volume. The method of the invention is characterized in that: the toilet flushing water which enters the biological processing tank through the raw water pool is subjected to the biological denitrogenation processing and the membrane separation processing in the biological processing tank, so escherichia coli is prevented from going, the outlet water of the biological processing tank can be directly used as the toilet flushing water. The environmental protection toilet of the invention has the advantages of small occupied land, low energy consumption and easy maintenance.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to a sewage treatment method and a sewage recycling device, in particular to a treatment and purification method for toilet feces sewage and an environment-friendly toilet flushed with circulating water using the method. Background technique [0002] The traditional treatment of effluent circulating flushing water toilet is to flush the waste after using the toilet with water, and then rely on bioengineering methods to treat the waste and flushing water discharged from the toilet, and the treated effluent is reused as toilet flushing water. The invention patent with the patent number of 200410041059.1 discloses a "circulating water flushing ecological toilet and its sewage treatment method", including a high-level water tank, a toilet, a stirring and crushing device, a solid-liquid separation device, an anaerobic reaction device, The facultative oxygen reaction device, the aerobic reac...

AI Technical Summary

Problems solved by technology

However, the above-mentioned technical solution has the following disadvantages: because the toilet drainage directly flows into the biological treatment tank, the load of the biological treatment tank exceeds the processing capacity during the short time when the toilet is frequently used intensively, and the organic dirt cannot be fully decomposed, and toilet flushing will occur The amount of water used is insufficient, or there is a foul smell in the flushing water. In addition, in order to remove the chroma and disinfection of the treated water, ozone treatment is used to remove it. The above-mentioned advanced sewage treatment method for the purpose of toilet flushing water is not only costly, but also The processing equipment is large, takes up a lot of space, and the maintenance and management are complicated

Images