Near-zero-release membrane process sewage treatment system for sludge

Abstract

The invention discloses a near-zero-release membrane process sewage treatment system for sludge. The system comprises a facultative biochemical system, an MBR membrane assembly system and an equipment room, wherein the MBR membrane assembly system is arranged on one side of the facultative biochemical system, and the equipment room is formed between the facultative biochemical system and the MBR membrane assembly system; and the facultative biochemical system comprises a facultative biochemical tank. The near-zero-release membrane process sewage treatment system is provided with the facultative biochemical system and the MBR membrane assembly system, wastewater with a relatively high COD concentration is firstly subjected to facultative biochemical treatment by a facultative strain, the treated wastewater together with the facultative strain flows into a membrane tank through a sewage connecting pipe, and the facultative strain is attached to an MBR membrane assembly in the membrane tank so as to purify the sewage, so that the volume of the biochemical tank is reduced, the environmental protection investment is saved, the daily operation cost is lowered, the sludge is substantially reduced, and the sludge output is low.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a membrane sewage treatment system with near-zero sludge discharge. Background technique [0002] Now small town sewage treatment stations mainly adopt the methods of setting up sludge storage tanks, sludge drying tanks, sludge dehydration equipment and overall trusteeship, and use professional mobile sludge dewatering equipment manufacturers for disposal. Although various sludge treatment method, to a certain extent, solves the problem of sludge disposal, but still has the following defects: 1. The sludge is stored for a long time, and the floating sludge generated affects the efficiency of biochemical treatment; 2. The sludge drying tank has land occupation, sunshine intensity, etc. Restricted conditions; 3. Manual operation is required for sludge dewatering, and the investment and operating costs are high; 4. The overall trusteeship has not yet formed a planning effec...

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Problems solved by technology

[0002] Now small town sewage treatment stations mainly adopt the methods of setting up sludge storage tanks, sludge drying tanks, sludge dehydration equipment and overall trusteeship, and use professional mobile sludge dewatering equipment manufacturers for disposal. Although various sludge treatment method, to a certain extent, solves the problem of sludge disposal, but still has the following defects: 1. The sludge is stored for a long time, and the floating sludge generated affects the efficiency of biochemical treatment; 2. The sludge drying tank has land occupation, sunshine intensity, etc. Restricted conditions; 3. Manual operation is required for sludge dewatering, and the investment and operating costs are high; 4. The overall trusteeship has not yet formed a planning effect, and the operating costs are high in the initial stage of exploration

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