Industrial sewage treatment system

A technology for treatment systems and industrial sewage, applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Mud reduction effect, good hydrophilicity, excellent removal effect

Inactive Publication Date: 2015-12-23
TAICANG DONGNENG ENVIRONMENTAL PROTECTION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the past, the following treatment process was basically used for sewage treatment: sewage water intake → water intake pump room → primary sedimentation tank → biol

Method used

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  • Industrial sewage treatment system

Examples

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Comparison scheme
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Example Embodiment

[0031] Example

[0032] Such as figure 1 Shown:

[0033] An industrial sewage treatment system, including coarse grid 1, lifting pump room 2, fine grid 3, drum micro filter 4, acid-base adjustment tank 5, PVA gel tank 6, sedimentation tank 7, UASB reaction tank 8 , Contact oxidation tank 9, secondary sedimentation tank 10, ultraviolet disinfection tank 11, effluent lifting pump room 12, the above-mentioned devices are connected in turn through pipelines; the sedimentation tank 7, UASB reaction tank 8, and secondary sedimentation tank 10 are also connected with sludge respectively The thickening tank 13 has a sludge dewatering room 14 connected to the outlet of the sludge thickening tank 13.

[0034] The grid pitch of the coarse grid 1 is 20-25 mm, and the grid pitch of the fine grid 3 is 8-10 mm.

[0035] The PVA gel pool 6 is filled with spherical PVA gel particles, the average particle size of the PVA gel particles is 5 mm, and the volume of the PVA gel particles accounts for 1 / 9 ...

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Abstract

The invention provides an industrial sewage treatment system which comprises a coarse screen, a pumping station, a fine screen, a drum microstrainer, an acid-base regulating tank, a PVA gel tank, a sedimentation tank, an UASB reaction tank, a contact aeration basin, a secondary sedimentation tank, an ultraviolet disinfection tank and an effluent pumping station. The above devices are successively connected through pipelines. The sedimentation tank, the UASB reaction tank and the secondary sedimentation tank are simultaneously and respectively connected to a sludge concentration basin, an outlet of which is connected to a sludge dehydration room. Through the industrial sewage treatment system, water quality can reach and be better than the first grade A emission standard in ''Discharge standard of pollutants for municipal wastewater treatment plant'' (GB18918-2002).

Description

technical field [0001] The invention relates to an industrial sewage treatment system, which belongs to the technical field of sewage treatment. Background technique [0002] The sewage discharge of industrial enterprises in my country is at a relatively high level. The "First National Survey of Pollution Sources" published by the Ministry of Environmental Protection on February 25, 2010 shows that in 2007, the national industrial wastewater production was 73.833 billion tons. The 140,652 sets of industrial wastewater treatment facilities processed about 45.852 billion tons, and the treatment rate was about 62%. The sewage treatment of industrial enterprises has always been the primary problem restricting the development of industrial economy. [0003] Industrial sewage such as printing and dyeing sewage, food production sewage, pharmaceutical sewage, papermaking sewage, etc. not only contain a large amount of organic and inorganic pollutants, but also contain a large number...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 严晓杰
Owner TAICANG DONGNENG ENVIRONMENTAL PROTECTION EQUIP
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