Removal of an anionic azo dye direct black 19 from water using white mustard seed (Semen sinapis) protein as a natural coagulant-Reference-Cited by-同舟云学术

Removal of an anionic azo dye direct black 19 from water using white mustard seed (Semen sinapis) protein as a natural coagulant

Published:2019-07-24 Issue:4 Volume:9 Page:442-451
ISSN:2220-1319
Container-title:Journal of Water Reuse and Desalination
language:en
Short-container-title:

Author:

Tie Jingxi¹²,Zheng Zhihong¹³,Li Guoting¹,Geng NanNan¹,Chang Ganfang¹,Yu Lu¹,Ji Yifan¹,Shi Ling¹,Chang Yangyang¹,Hu Leilei¹

Affiliation:

1. School of Municipal and Environmental Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450046, China

2. Henan Engineering Research Center of Water Pollution and Soil Damage Remediation, Zhengzhou, 450011, China and Henan Key Laboratory of Water Environment Simulation and Treatment, Zhengzhou, 450002, China

3. Henan Vocational College of Water Conservancy and Environment, Zhengzhou, 450008, China and Henan Engineering Laboratory of Lake & Reservoir Ecological Protection and Reclamation, Zhengzhou, 450008, China

Abstract

Abstract In this study, standard jar tests were conducted using white mustard seed protein (WMSP) as a natural coagulant to remove direct black 19 (DB-19) from its aqueous solution. Comparative coagulation tests were performed using commercial polyaluminum chloride (PAC). The results showed that DB-19 removal by WMSP increased with increasing settling time and reached the maximum removal at 180 min. The DB-19 removal descended from 98.4 to 46.2% as pH increased from 4 to 10. The most effective temperature for DB-19 removal was 25 °C. The removal of DB-19 was weakened by the presence of Na2S2O4. Overall, WMSP was more efficient than PAC for DB-19 removal in all experiments except at pH 4 and 5. The mechanism of the removal of DB-19 by WMSP could be attributed to adsorption and charge neutralization processes.

Funder

Science and Technology major project of henan province

Publisher

IWA Publishing

Subject

Filtration and Separation,Water Science and Technology

Link

http://iwaponline.com/jwrd/article-pdf/9/4/442/628843/jwrd0090442.pdf

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