Water treatment and reuse is the key strategy to address the problems of water shortages. To facilitate the communication and application of technology and research in water reclamation, the National Conference on Water Treatment and Reuse of China was held annually in 2017 by the Committee of Water Treatment and Reuse, Chinese Society for Environmental Sciences.
The theme of the 7th conference was the Water Recycling and Integrated Management of Water Systems. The conference, held from April 14 to 16 2023, brought together researchers working in different areas related to water treatment and reuse. More than 13,000 researchers from universities, institutes, and companies attended the conference.
The conference covered 20 topics:
Physical separation theory and technologies
Chemical transformation theory and technologies
Biological purification theory and technologies
Natural treatment theory and technologies
Water treatment theory and technology based on microalgae
Chemical risk and control
Disinfection and microbial risk control
Standard and risk control of reclaimed water environment reuse
Reclaimed water storage and reuse
Water quality detection and water characteristic research methods
Standards and policy for water quality control and water resource management
New materials, reagents, and equipment for water treatment
Design and intelligent operation of water treatment process
Urban water system and water recycling
Industrial water system and water recycling
Rural water system and water recycling
Pollution control and utilization of rainwater runoff
Water environment constructing and regional water recycling
Watershed environment remediation and water recycling
Desalination technology and processes
In this special issue of Water Reuse, seven papers that focus on the prevention and control of emerging contaminants were selected among papers presented at the 7th National Conference on Water Treatment and Reuse of China. This special issue is sponsored by CSCEC Scimee Sci. &Tech. Co., Ltd. to cover the article processing charges.
Each of these seven papers focuses on a certain link of water reclamation and reuse. The first four articles focus on water treatment and risk control. Dong et al. (2023) investigated the performance and mechanism of sulfonamide antibiotic degradation by plants in karst areas. Liang et al. (2023) also focused on antibiotics and presented a study on the removal of antibiotics by graphene oxide membranes. Yao et al. (2023) studied the treatment performance and mechanism of gas field wastewater by Fenton/metal sulfide processes. Chen et al. (2023) investigated the biofilm yield and biomass distribution in the process of municipal wastewater treatment by a multi-stage anoxic/oxic-moving bed biofilm reactor system.
Furthermore, two articles are related to the evaluation of biological effects of pollutants. Yuan et al. (2023) reported the effects of chronic zinc exposure on the oxidative stress and neurotoxicity of zebrafish. Li et al. (2023) examined the growth tolerance, bioremoval efficacy, and metabolomic profiles of the cellular responses of Chlorella pyrenoidosa to phenol and 4-fluorophenol.
Lastly, one review paper provides new insights for the application of fluorescence technology. Jing et al. (2023) summarized recent applications of fluorescence analysis in water research for the characterization of pollutants, evaluation of water treatment processes, and monitoring of emerging contaminants.
This special issue deals with various problems and investigates different treatment technologies concerning emerging contaminants. In response to the challenges of severe water shortages and the deterioration of water quality, the focus of cutting-edge technology and systems for water treatment and reuse is fast-growing worldwide. Progress is needed to provide high-quality reclaimed water, minimize the risks to the environment and human health, and support the use of non-conventional water resources.