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
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.
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
Feb 15, 2022 · We found high released CO 2 -C, N loss, and P accumulation in soil amended with a high dose of poultry manure during mineralization. However, high doses of poultry manure and digestate increased the biomass production in the valorization assay.
Oct 11, 2021 · Controlling ammonia loss is especially difficult in poultry manure because the nitrogen is more concentrated than in other agricultural manure or sewage sludge (Logsdon, 1989). Figure 1. Schematic representation of high-rise layer house (a) and manure belt layer house (b). Courtesy of Dr. Hongwei Xin, University of Tennessee. Figure 2.
Aug 1, 2023 · Ma et al. (2019) found that inoculation with mature compost increases the diversity of microbial communities in the medium- and high-temperature stages of sludge composting. Yang and Zhang (2022) improved the pile porosity and maturity by adding mature compost to kitchen waste.
Jan 1, 2023 · Results indicated that sewage sludge compost is an appropriate amendment to improve the phytoremediation efficiency. Compared to the control, the application of sewage sludge compost significantly reduced the extractability of As in soil by 26.8 %, and increased the removal of As and Pb by 26.9 % and 186.5 %, respectively.
Mar 1, 2024 · Hydrogen sulfide (H 2 S) is a toxic gas massively released during chicken manure composting. Diminishing its release requires efficient and low cost . In recent years, heterotrophic bacteria capable of rapid H 2 S oxidation have been discovered but their applications in environmental improvement are rarely reported.
Jun 12, 2023 · The yearly chicken manure production in Egypt is 2.3 million tons (Mahmoud et al. 2022). Furthermore, huge amounts of excess sludge from wastewater treatments are produced daily in Egypt. The authors investigated the biogas harvesting from mesophilic anaerobic cofermentation of untreated primary sludge and chicken manure at different ratios.
Feb 23, 2024 · The Qinghai-Tibet Plateau (QTP) is characterized by an extreme hypoxia, which may lead to lack of sufficient oxygen for compost production, and thus seriously affecting the compost quality. The moisture content (MC) has a direct effect on the oxygen content of composting pile. At present, the research on the optimum moisture content of compost production on the QTP is still lacking. This study
Nov 6, 2023 · [Show full abstract] the mixture of chicken manure and surplus sludge for a week. Bacterial biodiversity of BSF larvae production residues were investigated with metagenomic sequencing technology
Jul 21, 2023 · The improved composting equipment successfully maintained the compost material’s high-temperature duration at 7 days, which is in compliance with the Chinese standard document “Technical Specification for Harmless Treatment of Livestock and Poultry Manure” (GB/T 36195-2018).
Jan 1, 2024 · China produces about 3.05 billion metric tons of animal manure each year (Zeng et al., 2022), and untreated livestock and poultry manure pose major challenges to the environment. Manure contains large amounts of nitrogen, phosphorus, potassium, nutrients, and organic components and has a high potential for use as fertilizer ( Gong et al., 2023 ).
In this work, the evolution of polyphenolic compounds was studied during co-composting of olive mill wastewater sludge and poultry manure, based on qualitative (G-50 sephadex) and quantitative (Folin-Ciocalteu), as well as high pressure liquid chromatography analyses.
Apr 1, 2022 · Based on the variations of total humus, humic acid (HA), and fulvic acid (FA) during the manure composting process, the transformation of substances in humus was analyzed, and the compost maturity indexes were constructed by using the TC-TN ratio (C/N), ratio of total humus and total organic carbon (TOC), and humification index (HI). The results showed that: (1) The total humus content in the
