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Evaluation of Heavy Metal Contamination from Large-scale Swine-Farming Wastewater in Sichuan Province, China: Removal Efficiency, Spatial Distribution and Risk Assessment.
Bull Environ Contam Toxicol
January 2025
Sichuan Academy of Eco-Environmental Sciences, Chengdu, 610041, China.
The widespread application of swine-farming wastewater to soil and water is increasingly contributing to heavy metal contamination, posing significant environmental risks. This study investigated the concentrations of eight heavy metals in swine-farming wastewater following different treatment processes, and assessed their ecological risks in Sichuan Province, China. The findings revealed that zinc, copper and nickel exhibited the highest concentrations, potentially causing heavy or strong contamination levels and leading to heavy or slight ecological risks.
View Article and Find Full Text PDFFeS@BC prepared from natural pyrite and biomass as peroxydisulfate activator for sulfadiazine degradation.
Environ Res
January 2025
School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei, 230601, China.
The efficient degradation of SAs is a significant challenge for the treatment of wastewater. To address this, the FeS@BC was prepared by calcining a mixture of pyrite and biomass, and used to activate peroxydisulfate (PDS) to degrade sulfadiazine (SDZ). The effect of carbon sources (wheat straw, rice husk, and corn cob) on catalytic activity of FeS@BC were investigated by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), total Fe dissolution and free radical quantification.
View Article and Find Full Text PDFRemoval of antibiotics and their impact on growth, nutrient uptake, and biomass productivity in semi-continuous cultivation of Auxenochlorella protothecoides.
J Environ Manage
January 2025
Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University, Cowcaddens Road, Glasgow, G4 0BA, Scotland, UK.
The prevalence of antibiotics in wastewater poses risks to human and animal health, contributing to antimicrobial resistance. Although various antibiotic removal methods exist, microalgae-based technology presents a cost-effective and eco-friendly alternative; however, limited research on its long-term integration in semi-continuous wastewater treatment trials hinders our understanding of its potential effectiveness. This investigation explored the antibiotic removal capabilities of the microalga Auxenochlorella protothecoides in photobioreactors with synthetic wastewater under semi-continuous conditions over one month.
View Article and Find Full Text PDFEfficient removal of pharmaceuticals from wastewater: Comparative study of three advanced oxidation processes.
J Environ Manage
January 2025
Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), Yliopistonkatu 34, 53850, Lappeenranta, Finland.
As the global consumption of pharmaceuticals increases, so does their release into water bodies. The effects, although not fully understood, can be detrimental to aquatic ecosystems and human health. The new Urban Wastewater Treatment Directive (UWWTD) in European Union requires implementation of quaternary wastewater treatment processes to limit the loads of pharmaceuticals reaching water bodies.
View Article and Find Full Text PDFMitigation of microfibers in laundry effluent: Investigation of luffa fibers as an eco-friendly filtration system.
J Environ Manage
January 2025
Department of Fashion Technology, PSG College of Technology, Coimbatore, 641004, India.
Domestic laundry wastewater is a major contributor to microfiber emissions in the aquatic environment. Among several mitigation measures, the use of external filters to capture microfibers from wastewater is one of the most efficient and commercially viable methods. This study attempted to develop an eco-friendly filtration medium to filter microfibers in laundry wastewater using luffa cylindrica fibers.
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