Title:
アミン含有廃水からのアミン回収方法
Document Type and Number:
Japanese Patent JP5373067
Kind Code:
B2
Abstract:
Provided is a method for recovering high-concentration and high-purity amine from amine-containing waste water generated from nuclear power plants and thermal power plants. The method includes: capturing amine and concentrating waste water using a cation exchange resin; separating amine from the concentrated amine-containing waste water; and carrying out further separation of amine via distillation. The method may be applied to treat amine, which causes an increase in biochemical oxygen demand (BOD) and total nitrogen concentration, drastically at the time of its generation from waste water of nuclear power plants and thermal power plants. In this manner, the method may prevent an increase in load of existing waste water treating plants and avoid a need for modifying the equipment in the existing plants. In addition, the method disclosed herein may allow recovery and reutilization of amine, injected continuously to prevent corrosion of water/vapor circulation systems of nuclear power plants and thermal power plants, thereby improving the cost-efficiency in such power plants.
Inventors:
Lee, In Hyun
Park, Binggi
Jun, Hyun Jun
Park, Binggi
Jun, Hyun Jun
Application Number:
JP2011511486A
Publication Date:
December 18, 2013
Filing Date:
May 30, 2008
Export Citation:
Assignee:
Sunchun Hyang University Industry Academy Academy Operations Foundation
International Classes:
C02F1/42; B01D53/54; B01J39/04; B01J39/20; B01J47/02; B01J49/00; C02F1/04
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Foreign References:
| WO2008013370A1 |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office