Straw Biochar and Graphite Oxide Enhanced External Pressure Ultrafiltration for Leaded Wastewater Treatment-Reference-Cited by-同舟云学术

Straw Biochar and Graphite Oxide Enhanced External Pressure Ultrafiltration for Leaded Wastewater Treatment

Published:2024-07-10 Issue:7 Volume:12 Page:500
ISSN:2305-6304
Container-title:Toxics
language:en
Short-container-title:Toxics

Author:

Yang Fan¹²^ORCID,Pei Liang¹³⁴,Wang Zhenggang⁵,Duo Jia¹

Affiliation:

1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China

2. Key Laboratory of Xinjiang Coal Resources Green Mining (Xinjiang Institute of Engineering), Ministry of Education, Urumqi 830023, China

3. Institute of Geographical Sciences and Resources, Chinese Academy of Sciences, Beijing 100101, China

4. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China

5. Xinjiang Research Center for Natural Resources Development, Urumqi 830002, China

Abstract

In order to solve the problem of the low treatment efficiency of wastewater containing heavy metals in mining areas, straw biochar and graphene oxide enhanced external pressure ultrafiltration (SGU) was used to treat wastewater containing high concentrations of Pb2+. The operation parameters such as pH and temperature were optimized, and the removal efficiency of CODCr, NH3-N, turbidity and Pb2+ via SGU, straw biochar ultrafiltration (SU), ultrafiltration (UF), and conventional treatment (CT) were systematically investigated. The results showed that the pH and temperature of polluted water were 4.8–5.2 and 21–30 °C, respectively, the average removal rates of CODCr, NH3-N, turbidity and Pb2+ by SGU reached 91%, 97%, 98% and 95%, respectively, and the removal effect was better than that of other processes. In addition, under the backwash conditions of clean water, weak acid, and weak alkali, the membrane flux recovered 65%, 88%, and 89% of the new membrane, respectively. This study provides scientific and theoretical support for the advanced treatment of polluted water in mining areas.

Funder

Secondary Introduction Project of Xinjiang Science and Technology Department

Xinjiang Key Laboratory of Green Coal Resources of Ministry of Education

Natural Science Foundation of Xinjiang Uygur Autonomous Region

National Natural Science Foundation of China

Publisher

MDPI AG

Link

https://www.mdpi.com/2305-6304/12/7/500/pdf

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