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.:
Date of Patent:
Feb. 27, 2018
Filed:
Dec. 25, 2016
Nanjing University, Nanjing, CN;
Jinju Geng, Nanjing, CN;
Yuhang Ren, Nanjing, CN;
Hongqiang Ren, Nanjing, CN;
Ke Xu, Nanjing, CN;
Lili Ding, Nanjing, CN;
NANJING UNIVERSITY, Nanjing, CN;
Abstract
A method for degrading artificial sweeteners from sewage, the method including: 1) introducing sewage to a secondary sedimentation tank and precipitating sediments; 2) collecting a supernatant from the secondary sedimentation tank, adding a NaOH solution or a perchloric acid solution to regulate the pH; adding an HOsolution to the supernatant to adjust a ratio of a molar concentration of HOto a molar concentration of the sweetener in the resulting mixed solution to be between 1:1 and 30:1; transferring the resulting mixed solution to a photoreactor, irradiating the mixed solution by ultraviolet light, and stirring the mixed solution for between 5 and 30 min; and adding a 1.5% w/w aqueous NaNOsolution to the mixed solution; and 3) collecting and analyzing an effluent obtained from 2), contacting the effluent with ClOfor reaction in a disinfecting tank, and discharging the product.