Flushing dual-purpose sewage treatment system and its control method

Abstract

The invention discloses a washing and cleaning dual-purpose sewage treatment system. The washing and cleaning dual-purpose sewage treatment system comprises a transit water tank, a plunger pump, a dual-stage paralleled membrane filtering system, a contributing water discharge pipe, a contributing water tank and a thick water discharge pipe, wherein the transit water tank is connected with an intake pipe; the plunger pump is connected with the water outlet end of the transit water tank through a first cartridge filter; the dual-stage paralleled membrane filtering system is connected with the water outlet end of the plunger pump; the contributing water discharge pipe is connected with the contributing water outlet of the dual-stage paralleled membrane filtering system through a contributing water pipeline; the contributing water tank is connected with the contributing water discharge pipe; the thick water discharge pipe is connected with the thick water outlet of the dual-stage paralleled membrane filtering system through a thick water collecting pipe; the contributing water tank is connected with a clear water tank though a pipeline with a manual valve; the contributing water tank and the clear water tank are connected with the water outlet end of the plunger pump through a same pipeline; a flushing pump and a second cartridge filter are mounted on the pipeline; besides, a scale inhibitor pump used for adding a scale inhibitor into raw water is mounted between the first cartridge filter and the plunger pump. The dual-purpose sewage treatment system has the advantages of unique design and high application value.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a flushing dual-purpose sewage treatment system. Background technique [0002] In order to avoid environmental pollution, industrial sewage must be strictly treated before it can be discharged, especially high-concentration sewage. The sewage produced in the process of oil extraction is one of the high-concentration sewage, which has a strong ability to damage the environment and must be treated with professional equipment. Disposal shall not be discharged until the national standard is met. [0003] Whether it is in the oil extraction industry or in other industries, industrial sewage usually has some common features: it contains a large number of impurity particles, is toxic and harmful, and is strongly acidic or alkaline. The sewage produced by some special industries also has other characteristics. These The characteristics of sewage make sewage treatment extremely troublesome, d...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a dual-purpose sewage treatment system for flushing and clearing, which solves the problems in the prior art that sewage treatment is difficult to complete and treatment equipment is easily damaged

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