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Sustainability | Free Full-Text | Sewage Sludge Management

Apr 1, 2023 · One of the most pressing environmental problems worldwide is sewage sludge (SS) management. Every year, wastewater volume increases and thus, the amount of SS produced increases as well. The disposal of SS in landfills, as practiced in many countries, is not a sustainable solution. Instead, SS, rich in organic matter and other nutrients, can be used as an alternative soil additive or

Antibiotic Resistome and Its Association with Bacterial

Composting is widely used for recycling of urban sewage sludge to improve soil properties, which represents a potential pathway of spreading antibiotic resistant bacteria and genes to soils. However, the dynamics of antibiotic resistance genes (ARGs) and the underlying mechanisms during sewage sludge composting were not fully explored. Here, we used high-throughput quantitative PCR and 16S

Conversion of sulfur during sewage sludge composting under

LIU Jun-wan, ZHENG Guo-di, ZHENG Hai-xia, CHEN Tong-bin, YU Bao, SHI Xiao-xiao, MA Chuang. Conversion of sulfur during sewage sludge composting under different ventilation conditions [J]. Journal of Plant Nutrition and Fertilizers, 2021, 27 (1): 135-143. DOI: 10.11674/zwyf.20192.

Performance Evaluation in Composting of Sewage Sludge with

Apr 25, 2020 · In addition, a lower weight ratio between sewage sludge and wood chips significantly improved the composting process. A ratio of 3∶1 (wet basis) resulted in an increase of composting temperature

Is Your Compost Made of Sewage Sludge? | Planet Natural

Jan 14, 2013 · The biosolids-are-sewage-sludge secret is one that commercial compost marketers, some city waste disposal utilities, the EPA and even some environmental interest groups work hard to keep. Large amounts of money in the form of expensive public relations campaigns have been spent to make you think that spreading sewage on commercial food crops

Sewage sludge - Wikipedia

Sewage sludge is the residual, semi-solid material that is produced as a by-product during sewage treatment of industrial or municipal wastewater. The term "septage" also refers to sludge from simple wastewater treatment but is connected to simple on-site sanitation systems, such as septic tanks . When fresh sewage or wastewater enters a

Composted Sewage Sludge as a Substrate for Commercial - MDPI

Jan 2, 2024 · Sewage sludge in natura is rich in nutrients, water, and organic matter and is essential for plant development. However, sewage sludge is diluted with water when composted, which could hamper plant growth. Therefore, supplementation with chemical fertilization may be necessary. This study evaluated the performance of composted sewage sludge (CSS) in producing Peltophorum dubium (Spreng.) Taub

Reduction in greenhouse gas emissions from sewage sludge

Mar 1, 2014 · The properties of MSS were referred to MSS I (87.98% water content, 43.56% organic matter, and 4.26% total nitrogen), and the MSS reduction was 85% for the comprehensive recycling and 63% was

What Is Sewage Sludge and What Can Be Done with It?

Dec 4, 2023 · One of the most widely used for sludge treatment. Sludge is held in the absence of air for 15 to 60 days at temperatures of 68 to 131°F. Anaerobic bacteria feed on the sludge, producing methane and carbon dioxide. In some treatment plants, the methane is collected and burned to maintain the treatment temperature.

Sewage Sludge Composting | Request PDF - ResearchGate

Jan 1, 2000 · The sludge is composted for about 3-6 months by combining, active mixing, aeration and stabilization (maturation) sewage sludge, green waste and other organic wastes in open composting piles

Sustainable Agriculture Practices: Utilizing Composted Sludge

Apr 6, 2024 · It is desirable to recycle sewage sludge as fertilizer for agricultural fields. The application of sludge to agricultural soils is a measure that replaces chemical fertilizers and plays an important role in improving soil’s physicochemical and biological properties. However, there are concerns that the pollutants in sewage sludge will cause negative impacts on soil health. To closely monitor

Sewage sludge treatment - Wikipedia

Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge treatment is focused on reducing sludge weight and volume to reduce transportation and disposal costs, and on reducing potential health risks of disposal options. Water removal is the primary means of weight and

Oxygen Monitoring Equipment for Sewage-Sludge Composting and

Oxygen is an important parameter for organic-waste composting, and continuous control of the oxygen in a composting pile may be beneficial. The oxygen consumption rate can be used to measure the degree of biological oxidation and decomposition of organic matter. However, without having a real-time online device to monitor oxygen levels in the composting pile, the adjustment and optimization of

Role of Temperature in Sludge Composting and - Springer

Jul 15, 2021 · The utilization of nutrients in sewage sludge partly alleviates the economic and environmental constraints, and the composting process has been proved a cost-efficient and simple approach for the recycling of sewage sludge. During the bio-oxidative process, the thermophilic phase is considered to be the most effective stage for the biodegradation of organic matter in sewage sludge composting

Co-composting of sewage sludge with plant biomass, and

Jun 1, 2023 · Heavy metal concentrations in the developed sewage sludge compost (NSSC) were lower than the threshold values of composts reported worldwide, and the fiber content was higher (33.6 %) than that of commercial sewage sludge compost (CSSC) (9.7 %), indicating that co-composting with plant biomass resolves the issues associated with sewage sludge.