2021/1/14/ · 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 experiments were performed for

2022/1/1/ · Each treatment plant should have its own sewage sludge management system. Only then any management strategies can be considered ecologically and economically feasible. Santos T, Palma P, Sengo J et al (2015) Sewage sludge, compost and other representative organic wastes as agricultural soil amendments:

The study examined how aeration rate (AR) in bioreactor (1.0 and 0.5l/min kg dm) at low C/N ratio (ca. 15-16) affected kinetics of organic matter (OM) removal, i.e. rate constant of OM removal (k) and maximum degradation of OM (A) and nitrogen evolution during sewage sludge composting. Moreover, pot

2015 (item 257) on municipal sewage sludge (when using sludge in agriculture and for land reclamation for arable purposes) [14]. The sewage sludge had very high contents of moisture (89.0–89.3%) and OM (84.6– 85.3%). The pH of the sewage sludge was 8.06–8.16. The sludge was rich in fertilizer

2023/12/15/ · Basics of Biosolids. Biosolids are a product of the wastewater treatment process. During wastewater treatment the liquids are separated from the solids. Those solids are then treated physically and chemically to produce a semisolid, nutrient-rich product known as biosolids. The terms ‘biosolids’ and ‘sewage sludge’ are often used

2019/4/19/ · All thermal processes are considered sludge-to-energy systems that lead to the complete oxidation of the volatile matter with production of a residue (ash). Generally, the most famous technologies are incineration, gasification, pyrolysis, and plasma gasification. (PCBs and PAHs) micropollutant concentrations during sewage sludge

Energies 2022, 15, 5014 2 of 14 Composting is a preferred method of sewage sludge treatment, mainly in small and medium-sized wastewater treatment plants. Due to its high moisture, low porosity, and

2023/2/1/ · The purpose of this study was to access the effects of thermotolerant nitrifying microorganisms and sulfur-oxidizing bacteria on microbial community and enzyme activity involved in nitrogen‑sulfur metabolism during laboratory-scale sewage sludge (SS) composting，and to do a microbial-environmental factor association analysis to promote

2018/6/1/ · Sewage sludge composting process was conducted using a semi-permeable Gore-tex cover, in combination with an air-insufflation system. The highest values of enzymatic activities such as dehydrogenase, protease and arylsulphatase were detected in the first 5 days of composting; suggesting that during this period of time a

2000/1/1/ · 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

2009/5/1/ · The characteristics of the sewage sludge and rice straw used to prepare the piles for composting are shown in Table 1.In general, most of the parameters analysed fall within the ranges obtained by Iranzo et al. (2004).Nevertheless, the EC value and the Cu and Pb contents of the sewage sludge used are lower than the values presented in the

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

2022/1/1/ · Sewage sludge composition will depend mainly on the seasonal effects, adopted treatments’ system, as well as its source (domestic, industrial, or a mix of both) (Tao et al. 2012; Nascimento et al. 2020).Generically, SS is composed by a complex mixture of organic components, such as proteins, lipids, carbohydrates, phenolic compounds,