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Treatment process for tuber mustard waste water

A treatment process and technology of mustard wastewater, applied in high COD, high ammonia nitrogen, high phosphorus mustard wastewater, mustard production wastewater treatment process, high salt fields, can solve the problem of difficult to reach the first-level discharge standard, and achieve high denitrification. Effect

Inactive Publication Date: 2013-05-01
NANJING GREEN ISLAND ENVIRONMENTAL ENG
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Problems solved by technology

[0006] After the above process, the effluent COD=200~300mg / L, ammonia nitrogen=30~40mg / L, total phosphorus=1~5mg / L, it is difficult to meet the first-level discharge standard of "Comprehensive Wastewater Discharge Standard" GB8978-1996, namely COD=100mg / L, ammonia nitrogen=15mg / L, phosphorus=0.5mg / L

Method used

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  • Treatment process for tuber mustard waste water
  • Treatment process for tuber mustard waste water
  • Treatment process for tuber mustard waste water

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] Such as figure 1 Shown, sewage treatment process of the present invention is as follows:

[0022] The low-salt wastewater passes through the grid through the sewage pipeline to the regulating tank, and the high-salt wastewater enters the concentrated brine tank through the sewage pipeline through the grid for storage; the dilute brine and concentrated brine are transported to the phosphorus removal sedimentation tank after the water volume is adjusted and the water quality is adjusted in the regulating tank. , and then go to the hydrolytic acidification tank for hydrolytic acidification, and then lift the effluent from the hydrolytic acidification tank to the pulse contact anaerobic tank to enter the anaerobic methanation stage, and the anaerobic effluent enters the intermediate sedimentation tank to add flocculant for secondary phosphorus removal, CASS The anoxic-a...

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Abstract

The invention discloses a treatment process for tuber mustard waste water, which comprises the steps that the waste water passes through a grid, a regulation tank, a dephosphorization settling tank, a hydrolysis acidation tank, an anaerobic contact tank, an intermediate settling tank and a CASS (Cyclic Activated Sludge System) tank in sequence, and reaches standards to be discharged. The treatment process removes organic matter and has stronger denitrification and dephosphorization functions; and the discharged water can meet a first-grade discharge standard of GB 8978-1996.

Description

technical field [0001] The invention relates to a wastewater treatment process, which directly relates to the mustard mustard production wastewater treatment technique, in particular to the mustard mustard wastewater with high salt, high COD, high ammonia nitrogen and high phosphorus. technical background [0002] Mustard mustard production wastewater has the characteristics of high salt, high ammonia nitrogen and high phosphorus, and direct discharge will have an impact on the water body and the surrounding ecological environment. [0003] Most of the existing mustard wastewater treatment processes, such as: [0004] (1) pH adjustment → grid → flocculation sedimentation → adjustment → anaerobic → primary contact oxidation → secondary contact oxidation → inclined tube sedimentation → discharge; [0005] (2) Fine grid → regulation → compound anaerobic reaction → aerobic biofilm reaction → flocculation and sedimentation → discharge; [0006] After the above process, the effl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 李家祥李跃华
Owner NANJING GREEN ISLAND ENVIRONMENTAL ENG
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