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Method for treating industrial wastewater / sewage by two-stage magnetic isolation technique

A technical treatment and magnetic separation technology, applied in the fields of magnetic field/electric field water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of not involving industrial waste/sewage, slow processing speed, high operating cost, etc., and achieve economical Better effect, improved cleaning efficiency and high degree of automation

Inactive Publication Date: 2007-09-26
郭玉同
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Problems solved by technology

The main problems of this kind of treatment method are: (1) large investment, high operating cost, large-scale pools, pipe networks, pumping stations and other facilities need to be built; (3) processing speed is slow, the cycle is long, and the floor area is large
[0003] Secondly, Chinese Patent Application No. 02134804.9 "Method and Device for Treating Secondarily Polluted Drinking Water by High Gradient Magnetic Separation Method" and Chinese Patent Application No. 200410016804.7 "A Method for Using High-Intensity Magnetic Separation Technology to Treat Domestic Sewage" Both have patented inventions that use high-gradient magnetic separation to treat domestic sewage, but neither of the two inventions involves industrial waste / sewage, nor does it clarify the recycling of magnetic powder. If the magnetic powder cannot be recycled, the cost will be too high and large-scale industrialization will not be possible. Waste / Sewage Treatment

Method used

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  • Method for treating industrial wastewater / sewage by two-stage magnetic isolation technique

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing 1.

[0025] The waste water is pumped to the mixing container, and flocculant and magnetic powder are added into the mixing container at the same time, stirred continuously by the agitator to achieve the flocculation effect, and then sent to the clarification container for the first stage treatment, about 1-2 in the clarification container After about 10 minutes, the flocculated material settles at the bottom of the clarification container, and is transported to the magnetic drum recovery device of the permanent magnetic field through the pipeline; the separation and recovery of the magnetic seeds are carried out.

[0026] The liquid from the clarification container is then magnetically filtered through a high-gradient magnetic separator, and at the same time, the magnetized particles adsorbed on the filler of the separator are washed by degaussing and backwashing pressurized w...

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Abstract

The invention discloses a disposing method of industrial effluent sewage with two grade magnetic separating technology, which comprises the following steps: magnetic flocculating; magnetic drum separating; setting as first grade dispose; magnetic filtering; backwashing and twice magnetic powder reclaiming; setting as second grade dispose. The waste water through two grade dispose is homologous to ultrafiltration function. This invention possesses high purity, quick speed and high efficiency, which can fit for disposing industrial effluent sewage with different scale.

Description

Technical field: [0001] The invention relates to industrial waste / sewage treatment technology, and belongs to the advanced treatment of reused water in the field of water treatment, in particular to a method for treating industrial waste / sewage by using high-gradient secondary magnetic separation technology. Background technique: [0002] The existing conventional method of industrial waste / sewage treatment is secondary biochemical treatment. After physical treatment such as primary sedimentation and filtration, it enters the aeration tank, undergoes active biochemical treatment, and is discharged after re-precipitation. The main problems of this kind of treatment method are: (1) large investment, high operating cost, large-scale pools, pipe networks, pumping stations and other facilities need to be built; (3) The processing speed is slow, the cycle is long, and the floor area is large. [0003] Secondly, Chinese Patent Application No. 02134804.9 "Method and Device for Trea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/48C02F1/52
Inventor 郭玉同
Owner 郭玉同
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