Research Progress of Industrial Heavy Metal Wastewater Treatment Process
Shijiazhuang Key Laboratory of Low Carbon Energy Materials, College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China
| Abstract: | With the rapid development of modern industry, the types and emissions of heavy metal wastewater are also increasing day by day. Heavy metal wastewater is non biodegradable, and discharge standards are also updated and iterated with people's continuous requirements for health. Based on the current situation of industrial heavy metal wastewater treatment in China, this paper summarizes the sources and treatment status of heavy metal wastewater, as well as the commonly used technologies and processes for industrial wastewater treatment from traditional to modern at home and abroad, introduces the advantages and disadvantages of physical, chemical and biological treatment methods for industrial wastewater containing heavy metals in practical applications, and looks forward to the development trend of Advanced oxidation process and biological treatment methods. The biological treatment method has the characteristics of rich raw materials, environmentally friendly and pollution-free, but at present, the research on biotechnology is not mature and its application is not widespread. If the system is applied to industrial treatment of heavy metal wastewater, further research is still needed. There are few heavy metal wastewater treatment equipment or systems developed from heavy metal wastewater treatment processes, and the issues of continuous operation, automation, and large-scale treatment of heavy metal wastewater still need to be explored. There is also room for development in the field of resource development and utilization by extracting and recovering heavy metals from sludge after heavy metal wastewater treatment. This article reviews the methods for treating heavy metal wastewater and evaluates them, with the aim of pointing out research directions and providing practical application references for the large-scale industrial development of industrial heavy metal wastewater in the future. |
| Keywords: | Heavy Metal Sewage; Recycling; Treatment Process; Degradation |
| DOI: | 10.57237/j.res.2023.02.003 |
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Received: 28 March 2023
Accepted: 23 May 2023
Published Online: 15 June 2023
Funding
| 1. | 河北省自然科学基金青年基金 (B2021106003) |
| 2. | 河北省高等学校青年拔尖人才计划项目 (BJ2021097) |
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