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
Here, raw AP and its modified product (MAP) with different nitrogen (N) contents were added into chicken manure composting at low (5%) or high (10%) rate. Results showed that all APs addition decreased the temperature and pH but AP-10% increased total N, HSs, and humic acid (HA) of compost by 12%, 18% and 27%, respectively.
The aim of this study was to investigate the influence of inoculants on compost stability, maturity and enzyme activities during composting of chicken manure and cornstalk. Two microbial inoculants (originated from aerobic municipal sludge and municipal solid waste, respectively) were used in composting at the rate of 0.3% of initial raw
May 1, 2020 · Co-composting is a simple and inexpensive alternative for stabilizing and reducing jointly different biodegradable waste. In this study, the feasibility of co-composting chicken manure (CM
Oct 1, 2023 · @article{Shen2023ElectricFA, title={Electric field-assisted aerobic co-composting of chicken manure and kitchen waste: Ammonia mitigation and maturation enhancement.}, author={Chang Shen and Huayuan Shangguan and Tao Fu and Huan Mi and Hao Lin and Lingyan Huang and Jiahuan Tang}, journal={Bioresource technology}, year={2023}, pages={ 129931
Abstract. As representative organic and inorganic additives, both biochar and smectite exhibit an excellent capacity to improve humification efficiency during composting. Nevertheless, the mechanisms underlying biochar/smectite-induced compost humification have still not been fully explored from the perspective of overall organic substances.
Feb 10, 2022 · Qasim et al. carried out composting of chicken manure with an addition of carbon-rich materials and bulking agents, i.e., sawdust and wood shavings under forced aeration in a closed cylindrical composting reactor system. The results revealed the lowest ammonia and carbon dioxide emissions and high volatile solids (VS) reductions (from 81 to 61%
Livestock manure is often contaminated with heavy metals (HMs) and HM resistance genes (HMRGs), which pollute the environment. In this study, we aimed to investigate the effects of the aqueous phase (AP) produced by hydrothermal carbonization (HTC) of sewage sludge (SS) alone and the AP produced by co-HTC of rice husk (RH) and SS (RH-SS) on humification, HM bioavailability, and HMRGs during
Jan 14, 2013 · While the EPA has given the use of sewage sludge its blessing some of its own scientists disagree that it’s safe. And for good reason. When you spread sludge on farmland or use a bag of compost you bought at a nursery or home-and-garden supply that’s made with sludge, you’re also spreading contaminants.
Nov 6, 2023 · The results showed that the 100 larvae cultured in 100 g of manure group had the best density because the comprehensive disadvantage evaluation ratio was the lowest (14.97%, good bioconversion
Aug 1, 2023 · Compared to other composting additives (biochar, sawdust, and straw), the addition of mature compost not only optimizes the properties of the composting material but may also have an effect on the microbial community and functional enzyme activity during the composting process, which leads to the improvement of compost quality (Maroušek et al
This work is based on a simple concept: Activated sludge A+B=C Physicochemical characterization of the activated sludge Activated sludge + poultry manure = Compost For an activated sludge rich in decomposed sawdust, a First, physicochemical analysis (pH, temperature and considerably high C/N ratio (191.17) attracts attention. conductivity
Sep 30, 2020 · AN OVERVIEW ON SEWAGE SLUDGE AS A GREEN MANURE SUPPLEMENT IN AGRICULTURE (8000 kg/ha sewage sludge compost plus 350 kg/ha urea) with 10% more than mineral fertilization. It
Feb 10, 2017 · During chicken manure-cornstalk composting, Li et al. (2017) found that inoculum derived from sewage sludge exhibited the best performance in terms of composting stability and maturity (the C/N
Aug 15, 2023 · Effect of the aqueous phase from the hydrothermal carbonization of sewage sludge as a moisture regulator on nitrogen retention and humification during chicken manure composting Author links open overlay panel Guangchun Shan a b , Weiguang Li a , Wenbing Tan b , Shanshan Bao c , Jie Liu a , Shuncai Wang a , Lin Zhu a , Li Chen a , Beidou Xi b