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Engineering method for recycling high-suspended solid concentration wastewater

A solid concentration, sewage and wastewater technology, applied in the process, equipment, electrical and automatic control fields of sewage treatment stations, can solve the problems of high suspended solid content, effluent can not meet the reuse water standard, etc., to enhance ecological benefits and improve service life , reduce the effective effect

Inactive Publication Date: 2018-11-13
TONGJI UNIV
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Problems solved by technology

[0007] The present invention provides a scheme for clean production and resource utilization of sewage and wastewater with high suspended solid concentration, so as to solve the problems in the above background that the content of suspended solids is too high and the effluent cannot meet the standard of reused water

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  • Engineering method for recycling high-suspended solid concentration wastewater
  • Engineering method for recycling high-suspended solid concentration wastewater

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Embodiment 1

[0042] This embodiment treats a certain plastic cleaning wastewater, and the influent water quality is COD cr =300mg / L, BOD 5 =60mg / L, NH 3 -N=4mg / L, TP=1mg / L, suspended solids=300mg / L, petroleum=20mg / L, surfactant=10mg / L. The processing station will be constructed simultaneously in the near and long term.

[0043] figure 2 It is the process flow diagram of the present embodiment.

[0044] like figure 2 , this embodiment consists of a two-stage spiral grid machine 1, a water collection tank 15, a vibrating screening machine 2, a water distribution channel 3, a primary sedimentation tank 4, an outlet channel 1#5, an integrated air flotation device 6, a biological selection tank 17, Aerobic tank 7, secondary sedimentation tank 8, outlet channel 2#9, vertical fiber filter cloth filter tank 10, reuse pool 11, constant pressure water tank 22 and sludge treatment system. Wherein, the waste water is input from the bottom of the spiral grill machine 1 and enters the treatment ...

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Abstract

The invention relates to an engineering method for recycling high-suspended solid concentration wastewater, and provides a reliable novel scheme tested in practice for treating and recycling the wastewater rich in suspended solids. The specific process adopts a primary treatment-secondary treatment-tertiary treatment design process, and comprises a sludge treatment system, and a recycle water supply system is connected in the follow-up process. Especially, a spiral grid machine, a vibrating screen classifier, an integrated air flotation device, a vertical fiber cloth filter and the like are reasonably matched, thereby performing multi-stage solid-liquid separation on the wastewater, and fully exerting the functions and advantages of various equipment, so that a large amount of suspended solids and organic matter in the wastewater can be effectively removed. Finally, the water resources are recycled by a recycling system, and discharged mud and discharged slag are treated by the sludgeto be recycled or form a mud cake for further treatment. The method provided by the invention solves the problem that the influent suspended matter content is too high and the effluent water is difficult to reach the recycle water standard, and the treatment effect is good, the utilization value of useful resources is also improved, and the generalizability is extremely high.

Description

technical field [0001] The invention relates to the technical fields of technology, equipment, electricity and automatic control of sewage treatment stations, and in particular to a system for clean production and resource utilization of waste water with high suspended solid concentration. Background technique [0002] In the process of purification and resource utilization of sewage and wastewater, the concentration of suspended solids in water is an important indicator for evaluating the degree of treatment and the effect of the treatment process. Solids often contain various pollutants, such as organic matter, ammonia nitrogen, lipids, etc., which deteriorate water quality. Therefore, water resources with high suspended solid concentrations need to be purified to a certain extent before they can be used by humans. When the suspended solids in the sewage and wastewater exceed the standard, it is not only difficult to deal with and easy to block structures, but also brings ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/24C02F1/52C02F1/5281C02F3/02C02F9/00
Inventor 沈峥张亚雷李瑗周雪飞龚本涛郑阳华
Owner TONGJI UNIV
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