sewage sludge large scale composting equipment enhanced corrosion resistance

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. Thus, it contributed to the reduction of the spread of ARGs in environmental microbiomes, as well as the transfer of the same in the food chain.

Sep 5, 2020 · Here, we investigated the effects of the atmospheric environment of composting plants on ARG abundance during sewage sludge composting using semi-permeable membrane-covered thermophilic composting (smTC) and conventional thermophilic composting (cTC).

Jan 10, 2024 · In addition, different additives may influence the removal of ARGs during the composting. The addition of maize straw biochar and peat effectively reduced the abundance of ARGs in the sewage sludge composting process by 17.6 % and 43.0 %, respectively (Qiu et al., 2021). The spore structure of natural zeolites can reduce the rate of microbial

Aug 25, 2021 · Overall, our findings indicated that the aerobic co-composting of food waste with sewage sludge can effectively remove antibiotics and ARGs. Our study sheds a new idea light on the strategy for the removal of antibiotics and ARGs from organic solid waste.

Mar 25, 2023 · However, the entail a risk of releasing organic and inorganic pollutants into the environment (Bondarczuk et al., 2016). Thus, a large amount of sewage sludge must be managed using appropriate disposal practices. Aerobic composting is an useful bioremediation approach for recycling sewage sludge (Wang et al., 2021a).

Feb 1, 2020 · Therefore, this study assessed a full-scale process of sewage sludge composting using a semipermeable film, by Illumina MiSeq sequencing in order to: i) characterise the bacterial and fungal communities in the starting material of bulking agent and sewage sludge and throughout the process; ii) assess the shifts in both communities during

Aug 21, 2020 · Bulking agents are particularly important for sewage sludge composting. In this study, reusable polypropylene packing (RPP) was mixed with sawdust to improve composting. The effect of the mix ratio of sawdust and RPP on the physicochemical characteristics, nitrogen transformation, and emissions of greenhouse gas (GHG) as well as differences in the germination index values was detected in a lab

Jun 24, 2022 · Moreover, four bio-enhanced degradation scenarios of FQs were set up according to the different temperatures and carbon–nitrogen ratio (C/N) in the sewage sludge composting stage, and the molecular dynamic (MD) simulation assisted by protein–protein docking was used to screen the external environmental factors that promote the degradation

Jun 15, 2021 · Sewage sludge was collected from a local sewage treatment plant in Jiujiang, China. The total carbon and nitrogen content of sewage sludge were 251.4 g kg −1 and 30.8 g kg −1, respectively. Maize straw biochar and peat were used as compost additives. Maize straw biochar was collected from a factory in Jiangsu Province, China.

Maintaining the O (2) concentration higher than 14% in the pile could reduce H (2)S production. This study suggests that shortening the interval between aeration or aerating continuously to maintain a high O (2) concentration in the pile was an effective strategy for restraining H (2)S production in sewage sludge composting.

Jun 1, 2022 · The results of plant-scale hyperthermophilic composting of municipal sludge with green waste showed that the residual concentrations of polyaromatic hydrocarbons, phthalates, polybrominated

Oct 1, 2022 · Thus, advanced oxidation technologies need to dramatically reduce technological costs and secondary pollutants, so as to expand its application in large-scale municipal residual sludge dewatering processes. In general, chemical conditioning agent screening is still the direction for long-term investigation. 3.2. Anaerobic digestion

Dec 4, 2017 · We found that hyperthermophilic composting removed ARGs and MGEs more efficiently than conventional composting (89% and 49%, respectively). Furthermore, the half-lives of ARGs and MGEs were lower in hyperthermophilic compositing compared to conventional composting (67% and 58%, respectively).

Feb 2, 2018 · The objective of this study was to examine the feasibility of sewage sludge composting using a simple aeration method. Two consecutive composting trials (run A and run B) using Japanese sludge and woodchips (1:1, v/v) were conducted in cubic boxes (0.45 × 0.45 × 0.45 m3) made by plywood at Okayama University. Air was forced up through small holes perforated on two open-ended parallel PVC

Apr 1, 2019 · This composting experiment was carried out using sewage sludge mixed with sawdust, and different amounts of zero-valent iron (ZVI) were added to investigate the effect on volatile gases, such as