Method for treating vitamin B12 production wastewater

Method for treating vitamin B12 production wastewater

  • CN 102,633,403 A
  • Filed: 02/26/2012
  • Published: 08/15/2012
  • Est. Priority Date: 02/26/2012
  • Status: Active Grant
First Claim
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1. vitamins B 12The treatment process of factory effluent the steps include:

  • (1) with vitamins B 12Factory effluent is sent into equalizing tank and is carried out after water quality and quantity regulates;

    Send into the UASB reactor drum;

    Perforation water distributor through the UASB reactor bottom is evenly distributed to the UASB reactor cross-section and rises, successively through granular mud bed, suspended sludge area and triphase separator, simultaneously;

    Be provided with refluxing opening in the triphase separator bottom, waste water gets into the UASB reactor drum through the outer circulation force (forcing) pump from the UASB reactor bottom;

    (2) water outlet of UASB reactor drum gets into hydrolysis acidification pool;

    Hydrolysis acidification pool is a upflowing, and the bottom is provided with the perforation water distributor, and upper, middle and lower three places dark in the pond are provided with whisking appliance;

    Top, pond is provided with refluxing opening, and waste water gets into from the bottom, pond through the outer circulation force (forcing) pump in the pond;

    (3) water outlet of hydrolysis acidification pool gets into the MBBR pond, and MBBR has floating stuffing in the pond, drops into external second pond mud filler is carried out inoculation membrane formation, and aerating apparatus is arranged at the bottom, pond;

    (4) water outlet in MBBR pond gets into the extended aeration pond, and the bottom is provided with aerating apparatus and water-distributing device.

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