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US Patent 11299413 Method for modifying wastewater treatment device

Patent 11299413 was granted and assigned to Nanjing University on April, 2022 by the United States Patent and Trademark Office.

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TimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Nanjing University
Nanjing University
1
Current Assignee
Nanjing University
Nanjing University
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
112994131
Patent Inventor Names
Jinfeng Wang1
Hongqiang Ren1
Bing Wu1
Date of Patent
April 12, 2022
1
Patent Application Number
170039681
Date Filed
August 26, 2020
1
Patent Primary Examiner
‌
Fred Prince
1
CPC Code
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C02F 3/08
1
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C02F 3/1257
1
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C02F 3/30
1
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C02F 3/101
1
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C02F 3/109
1
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C02F 3/10
1
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C02F 2203/006
1
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C02F 3/34
1
...

A method for modifying a wastewater treatment device, the method including: 1) fixing a filling support in a wastewater pool, where the filling support includes a support frame; the support frame includes a hollow shaft, a fixed ring, and at least one vane; 2) adjusting the height of the filling support, until the fixed ring is submerged below the liquid level of the wastewater pool, where the water intake velocity of the wastewater pool is no less than 0.25 m/s, whereby a water current is produced and drives the support frame to rotate; 3) adding a functional liquid into the hollow shaft; and 4) adding an enzyme mixture to the hollow shaft when the rotation speed of the support frame is less than a first preset value, until the rotation speed of the support frame reaches a second preset value.

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