Method for handling industrial waste

Method for handling industrial waste

  • CN 102,985,376 B
  • Filed: 02/24/2011
  • Issued: 02/22/2019
  • Est. Priority Date: 02/25/2010
  • Status: Active Grant
First Claim
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1. the method that one kind reduces its COD (COD) for handling old metal working fluid (MWF), including stepIt is rapid:

  • (a) microorganism biofilm is provided on the solid state support matrix in the first bioreactor comprising giving up MWF, whereinMicroorganism biofilm can be by the COD of useless MWF from dropping below 3000mg/l between 5000 and 50000mg/L;

    (b) at least part is transferred to second from the first bioreactor comprising the solid state support matrix of microorganism biofilmBioreactor;

    With(c) microorganism is cultivated in the second bioreactor to reduce the COD of the diluted useless MWF being contained within,(d) increase the concentration of useless MWF, so that increase includes the COD of fluid in the second bioreactor,Wherein the operation temperature of the first bioreactor and the second bioreactor is between 1 DEG C and 35 DEG C;

    AndWherein the first bioreactor and/or the second bioreactor are aerated when in use.

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