Aug 1, 2020 · For example, the daily wastewater treatment capacity in China has increased rapidly since 2008, and accordingly the sewage sludge production had an average annual growth of 10.7% and rose to 11.75 million ton dry matter (DM) in 2019 (MoHURD, 2020); The United States has an average annual sewage sludge production of 17.8 million ton DM in the
Such resistances were detected mainly in microbial strains isolated from raw materials and the bio-oxidative phase of the process. Therefore, industrial-scale sewage sludge composting was shown to be an effective tool for the elimination of indicator strains of fecal contamination resistant to certain antibiotics in routine use.
Dec 24, 2021 · Wastewater treatment generates a huge amount of sewage sludge, which is a source of environmental pollution. Among the alternatives for the management of this waste, industrial composting stands out as one of the most relevant. The objective of this study was to analyze the bacterial population link
Nov 11, 2023 · Sewage sludge treatment and disposal has become a pressing issue in China. Sewage sludge was passivated by composite phosphorus-bearing materials to decrease heavy metals bioavailability. The optimum immobilizing conditions that were 5 g of phosphate rock, 3 g of calcium superphosphate for 100 g sludge and 14 d of passivation time were determined by an orthogonal test. The physico-chemical
Apr 1, 2020 · Cui et al. (2020) investigated the effects of the atmospheric environment of composting plants on ARG abundance during sewage sludge composting using smTC and conventional thermophilic composting
Dec 22, 2020 · Conventional fertilization practices in agroecosystems concern the supply of bioavailable nutrients, such as mineral fertilizers. A consolidated alternative to restoring the long-term fertility of agricultural soils is their amendment with organic fertilizers. Soil amendment with biowaste compost or sewage sludge represents a sustainable strategy to avoid the landfilling of organic matter
Nov 1, 2019 · It is thus clear that bioleaching conditioning treatment (79.1%) is much more useful than either adding natural zeolite into composting piles or adjusting the C/N ratio of sewage sludge to reduce
May 12, 2022 · This work reports the results obtained with an innovative configuration of a closed-static solar greenhouse for sludge drying. The novelty of the solar greenhouse configuration consisted in using a forced ventilation system to provide hot air for sludge drying and the utilization of solar irradiation for energy supply. Wet sewage sludge (97% humidity) was successfully dried up to a residual
Aug 2, 2013 · This study was conducted to investigate the influence of turning on water removal and the interactive influence of turning during different phases. Dewatered sewage sludge was composted using control technology for bio-composting, during which the temperature, free airspace, pile settlement and water reduction were measured and calculated.
Oct 19, 2023 · Sewage sludge treatment and disposal remains a challenging problem. Composting of sewage sludges is gaining increasing attention due to its cost-effectiveness, operation convenience, advantages in lifecycle management, and low greenhouse gas emissions. Disadvantages, such as long reaction time, significant land area occupation requirement, potential risks of residual heavy metals, and emerging
Sep 5, 2020 · Enhanced removal of antibiotic resistance genes and mobile genetic elements during sewage sludge composting covered with a semi-permeable membrane - ScienceDirect. Journal of Hazardous Materials. Volume 396, 5 September 2020, 122738.
Mar 4, 2022 · In this study, we present a systematic cause-evidence-impact relationship on the feedstock composition, processing, and applications of co-composted sewage sludge. Various analytical tools were compared to elucidate the unique characteristics of co-composted sewage sludge to get a realistic understanding of the complex soil-compost interactions.
Here, we used high-throughput quantitative PCR and 16S rRNA gene based illumina sequencing to investigate the dynamics of ARGs and bacterial communities during a lab-scale In tank composting of sewage sludge. A total of 156 unique ARGs and mobile genetic elements (MGEs) were detected encoding resistance to almost all major classes of antibiotics.
Oct 5, 2018 · Composting of sludge or manure is a well-known and used organic matter stabilization technology, which could be effective in reducing the antibiotics levels as well as the antibiotic resistance genes. During sludge or manure composting, the antibiotics removals range between 17–100%.
Jan 8, 2020 · Journal of environmental quality. 2016. TLDR. Current literature on the fate of antibiotics, ARB, and antibiotic resistance genes (ARGs) during anaerobic digestion and composting of manure and wastewater residuals demonstrates that composting significantly reduces levels of extractable antibiotics in livestock manure in nearly all cases. Expand.