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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11512014 B1

PDFFull Text
Date of Patent:
Nov. 29, 2022

Filed:

Jul. 16, 2020

Saline glycerine wastewater treatment system and technology

Applicant:

Qingdao University of Science and Technology, Qingdao, CN;

Inventors:

Xiaoyan Sun, Qingdao, CN;

Xingwang Zang, Qingdao, CN;

Liang Wang, Qingdao, CN;

Li Xia, Qingdao, CN;

Shuguang Xiang, Qingdao, CN;

Assignee:

Qingdao University of Science and Technology, Qingdao, CN;

Attorney:
Primary Examiner:

Peter Keyworth

Int. Cl.
CPC ...
C02F 9/00 (2006.01); B01D 1/26 (2006.01); B01D 9/00 (2006.01); C02F 1/00 (2006.01); C02F 1/04 (2006.01); C02F 1/52 (2006.01); C02F 1/68 (2006.01); C02F 3/00 (2006.01); C02F 101/12 (2006.01); C02F 101/34 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); B01D 1/26 (2013.01); B01D 9/0022 (2013.01); B01D 2009/0086 (2013.01); C02F 1/004 (2013.01); C02F 1/048 (2013.01); C02F 1/52 (2013.01); C02F 1/683 (2013.01); C02F 3/00 (2013.01); C02F 2001/5218 (2013.01); C02F 2101/12 (2013.01); C02F 2101/34 (2013.01); C02F 2103/36 (2013.01); C02F 2209/02 (2013.01); C02F 2301/046 (2013.01);
Abstract

The present invention discloses a saline glycerine wastewater treatment system and technology. The whole technological process mainly includes a reaction process, an evaporation process, a crystallization process, a filtration process and a drying process. The present invention first proposes the use of an 'ammonia-alkali reaction principle' to treat high-salt glycerine wastewater, which mainly solves the problem of treating a large amount of calcium chloride-containing glycerine wastewater produced in the production process of propylene oxide and epichlorohydrin in chlor-alkali industry, and places emphasis on solving the problems that low value-added calcium chloride produced in the wastewater treatment process of a traditional method has low quality, is basically accumulated as solid waste and is difficult to treat, and chloride ions have adverse effects on the biochemical process of wastewater treatment. By-products of high-quality calcium carbonate and ammonium chloride products have high economic benefits and social environmental protection benefits.

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Sun, Xiaoyan. (2022). Saline glycerine wastewater treatment system and technology (U.S. Patent No. 11512014). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11512014

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