Title:
PHOSPHATE REMOVAL RESIN REGENERATED WASTE LIQUID TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2024/074004
Kind Code:
A1
Abstract:
The present application relates to the technical field of wastewater treatment, and provides a phosphate removal resin regenerated waste liquid treatment method. According to the method of the present application, a persulfate is used as an oxidant, at least one of nickel powder, aluminum powder, and cobalt powder is used as a catalyst of oxidation reaction, oxidation is carried out by means of two stages of reaction kettles, the temperature of first-stage oxidation reaction is 85-95°Ϲ, and the temperature of second-stage oxidation reaction is 60-70°Ϲ, such that organophosphate in a phosphate removal resin regenerated waste liquid can be efficiently converted into a phosphorane under non-high-temperature and high-pressure conditions; and then precipitation and pressure filtration are carried out, so that the organophosphate in the phosphate removal resin regenerated waste liquid is removed to a great extent and the phosphate content in finally drained wastewater is less than or equal to 1.5 ppm.
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Inventors:
WU CHUNLI (CN)
LI CHANGDONG (CN)
TANG JIUPING (CN)
RUAN DINGSHAN (CN)
LI CHANGDONG (CN)
TANG JIUPING (CN)
RUAN DINGSHAN (CN)
Application Number:
PCT/CN2023/077164
Publication Date:
April 11, 2024
Filing Date:
February 20, 2023
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
C02F9/00; C02F1/04; C02F1/44; C02F1/52
Foreign References:
| CN115677088A | 2023-02-03 | |||
| JP2002361269A | 2002-12-17 | |||
| CN102020350A | 2011-04-20 | |||
| JPH09141274A | 1997-06-03 | |||
| CN107555649A | 2018-01-09 | |||
| CN103058346A | 2013-04-24 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM et al. (CN)
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