Method and apparatus for neutralizing alkaline wastewater without using mineral acids
AssigneeSharp Kabushiki Kasisha
InventorsKazuyuki Yamasaki, Kazumi Chujo
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Abstract
In this neutralizing apparatus, aerobic microorganisms are propagated on a vinylidene chloride packing material 10 provided in a neutralization tank 3. The aerobic microorganisms produce nitric acid ions from organic alkaline wastewater introduced from a raw water tank 1 and thereby the organic alkaline wastewater is neutralized. Thus, various kinds of alkaline wastewater can be neutralized without using a mineral acid as a poison such as hydrochloric acid or the like.
Claims11
An apparatus for neutralizing organic alkaline wastewater by producing nitric acid ions by aerobic microorganisms, the apparatus comprising:
- an ultrafilter membrane, a vinylidene chloride packing material, a pH meter and air supply means;
- and
- wherein aerobic microorganisms are utilized in neutralizing the organic alkaline wastewater.
Dependencies are inferred from the claim text.