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The effects of bioleaching on sewage sludge pyrolysis were studied. Sewage sludge was treated by bioleaching with solid concentrations of 6% (w/v), 8% (w/v), 10% (w/v). Results showed that bioleaching treatment could modify the physicochemical properties of sewage sludge and enhance the metals removal. The optimum removal efficiencies of heavy metals were achieved with solid concentration of 6% (w/v) bioleaching treatment: Cu, 73.08%; Zn, 78.67%; Pb, 24.65%; Cd, 79.46%. The characterization results of thermogravimetric analysis (TGA) showed that the bioleached sewage sludge with a 6% (w/v) solid concentration treatment was the easiest to decompose. Pyrolytic experiments of bioleached sewage sludge were performed in a laboratory-scale fixed bed reactor. Results indicated that bioleaching treatment greatly influenced the product yields and gas composition.
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http://dx.doi.org/10.1016/j.wasman.2015.10.002 | DOI Listing |
PLoS Negl Trop Dis
September 2025
Department of Clinical Science, Liverpool School of Tropical Medicine, Liverpool, United Kingdom.
Background: Salmonella enterica encompasses over 2,600 serovars, including several commonly associated with severe infection in humans. Salmonella is a major cause of sepsis in Africa; however, diagnosis requires clinical microbiology facilities. Environmental surveillance has the potential to play a role in Salmonella surveillance.
View Article and Find Full Text PDFMicrobiol Spectr
September 2025
Guangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China.
Unlabelled: Microalgae treatment is regarded as a green and environmentally acceptable method of treating pig farm biogas slurry (BS). Numerous studies have been conducted on the use of microalgae to treat sterilized BS. Nevertheless, in large-scale application settings, this method will undoubtedly result in high costs and low efficiency.
View Article and Find Full Text PDFJ Environ Qual
September 2025
Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, USA.
Per- and polyfluoroalkyl substances (PFAS) in biosolid-amended soils can transfer and accumulate in crops, cattle, and people. Bioaccumulation factors (BAFs) are often applied to estimate the transfer of contaminants from soil to crops. However, they can vary widely and introduce uncertainty to exposure and risk estimates.
View Article and Find Full Text PDFBiotechnol Rep (Amst)
September 2025
Laboratory of Agro Biotechnology and Nutrition in Semi Arid Areas, Faculty of Natural and Life Sciences, Ibn Khaldoun Tiaret University (Univ-Tiaret), P.O. Box 78, Tiaret, Algeria.
[This retracts the article DOI: 10.1016/j.btre.
View Article and Find Full Text PDFACS Infect Dis
September 2025
Animal-Derived Food Safety Innovation Team, College of Veterinary Medicine, Anhui Agricultural University, Hefei 230036, China.
The emergence of multidrug-resistant (MDR) poses a significant threat to global public health, necessitating alternative therapeutic strategies. In this study, we isolated and characterized a novel lytic bacteriophage (phage), vB_EcoM_51, from poultry farm sewage and evaluated its potential against MDR . Transmission electron microscopy revealed that the phage exhibits morphological features typical of the family, including a polyhedral head (∼66.
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