Magnetized powder strengthened method for removing nitrate nitrogen and inorganic phosphorus

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United States of America

PATENT NO 12024446
SERIAL NO

17599919

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Abstract

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The present invention belongs to the technical field of water treatment, and in particular to a magnetic powder strengthened method for removing nitrate nitrogen and inorganic phosphorus, which includes the following steps: (1) mixing permanent magnetic material powder with paramagnetic Fe3O4 powder, and magnetizing the mixture in a magnetic field to prepare magnetic powder; (2) adding the magnetic powder directly or in a form of granular filler into a water treatment reaction vessel; and (3) allowing the to-be-treated water to enter the water treatment reaction vessel, performing a chemical reaction of removing nitrate nitrogen and inorganic phosphorus in the presence of a reducing agent, and discharging the water after the reaction is completed. By adopting the method of the present invention, a uniform and fine magnetic field can be provided, thus the reaction efficiency is improved, and the process is simplified and the cost is lowered.

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Patent Owner(s)

Patent OwnerAddress
NANJING UNIVERSITYNO 163 XIANLIN AVENUE QIXIA DISTRICT NANJING JIANGSU 210023 210023
NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING6F R&D BUILDING YANCHENG ENVIRONMENTAL PROTECTION INDUSTRY PARK YANCHENG JIANGSU 224000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Aimin Nanjing, CN 45 71
Li, Shuangshuang Nanjing, CN 55 211
Li, Tong Nanjing, CN 171 724
Shuang, Chendong Nanjing, CN 17 9
Wang, Juntian Nanjing, CN 1 0
Wang, Ke Nanjing, CN 411 3121
Zhang, Guang Nanjing, CN 21 57

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