Oct 27, 2015 · In order to use sewage sludge (SS) composts in agriculture, it is extremely important to estimate the quality of compost products. The aim of this study was to investigate the quality of composted SS as a fertilizer and soil amendment especially in semi-arid areas. To determine the quality and agronomic value of the SS compost products, analyses on pH, electrical conductivity, organic matter
Composting is controlled fermentation that converts organic matter aerobically and produces stable humic and pre-humic compounds (figure 1). Aeration will only be effective if the medium is air-permeable. Dewatered sludge often has a low porosity; a bulking agent has to be added, usually in the form of a carbonaceous support (20% of the mixture
Oct 27, 2015 · Sewag e sludge (SS), or bi osolid, is a by-product of wa stewater treatm ent plants that re-. mains after muni cipal wastewat er treatment (Kalde ris. et al. 2010). Considering that SS contains
The management of sewage sludge originated from municipal wastewater treatment plants (WWTPs) is an urgent issue. In 2019, the local authority of the Piemonte region started a survey with the aim of collecting recent data concerning wastewater and sludge management in the WWTPs located in its own territory. The survey’s results revealed that 60% of the sludge (51,000 t, as dry substance, d.s
Mar 1, 2022 · The hyperthermophilic composting of sewage sludge with municipal green wastes was operated in an industrial-scale plant located in Zhaoqing city (112°27′E, 23°3′N), Guangdong Province, China. There were 32 windrows (each with 55 m length × 3.3 m width × 2.5 m height) for composting.
This study investigated the effects of phosphogypsum, superphosphate, and dicyandiamide on gaseous emission and compost quality during sewage sludge composting. Results showed that phosphogypsum reduced ammonia (NH 3 ) and methane (CH 4 ) emissions but increased nitrous oxide (N 2 O) emission.
Jan 1, 2023 · Aerobic composting was found to be an effective way to degrade triclosan in sewage sludge, as it effectively degraded and inactivated triclosan during the thermophilic phase, thus ensuring the stability and safety of the composting products.
Sewage sludge (SS) is by product of wastewater treatment which includes nutrients, organic matter and harmful constituents i.e. micro-pollutants, heavy metals and pathogens. The sludge is a great way to improve yields and can potentially provide nutrients to enhance the fertility of soil. However, it can also contain numerous inorganic (heavy
Aug 17, 2021 · In this study, the operations of six industrial composting facilities that process municipal solid waste and sewage sludge were evaluated from the point of view of the sanitation achieved and the quality of the compost produced.
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
SEWAGE SLUDGE 3 2.1 Definitions 3 2.2 Quantitative characteristics of sewage sludge 4 2.3 Composition of sewage sludge 5 2.3.1 Valuable or non -dangerous fraction 5 2.3.2 Pollutants 8 3. ALTERNATIVE SEWAGE SLUDGE MANAGEMENT PRACTISES 21 3.1 Overview of and trends 21 3.2 Landfilling 23 3.2.1 Anticipated impacts 26
applied sciences. Article. Compost Quality and Sanitation on Industrial Scale Composting of Municipal Solid Waste and Sewage Sludge. Ana B. Siles-Castellano, Juan A. López-González * , Macarena M. Jurado, María J. Estrella-González, Francisca Suárez-Estrella and María J. López.
Dec 20, 2023 · Residuals generated by domestic and industrial treatment works may be managed in a variety of ways. Marketable Residual Products (MRPs) are derived from domestic sewage sludge, such as pellets, compost, and alkaline materials often referred to as “biosolids.”. Other MRPs include food processing residuals and water treatment residuals.
Jan 14, 2021 · 28 Citations. Metrics. In present study, the effects of carbon sources on compost process and quality were evaluated in the lab-scale sewage sludge (SS) composting. The composting
Aug 1, 2023 · Sludge is made up of domestic and industrial effluents and surface water run-off. It mostly comes from waste water recycling centres (sewage plants). Some of it comes from private treatment such
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