Jul 1, 2012 · DOI: 10.1016/j.biortech.2012.04.008 Corpus ID: 44746752; Rapid production of maggots as feed supplement and organic fertilizer by the two-stage composting of pig manure. @article{Zhu2012RapidPO, title={Rapid production of maggots as feed supplement and organic fertilizer by the two-stage composting of pig manure.}, author={Feng-xiang Zhu and Wei-ping Wang and Chunlai Hong and Mingguang Feng
Sep 10, 2019 · The overall biogas production increased from 22 to 240 L/d after the addition of SCG due to synergistic effects. The addition of SCG improves the C/N ratio and pH value of liquid pig manure. SCG with liquid pig manure improves process stabilization, nutrient balance and the synergistic effects of microorganisms.
Feb 15, 2023 · Nutrient conservation and greenhouse gas emission control during composting have attracted much attention. This study investigated the effects of different amounts of superphosphate (SSP) on
Feb 20, 2024 · The growth of the population has led to increased production of solid municipal waste and a higher demand for food. Food production is inherently related to agriculture and, to achieve higher yields, it is necessary to replenish the soil with essential minerals.
Dec 5, 2022 · Modern compost machines are the gateway to a circular economy as it relates to food waste and other compostable material. This decentralized approach to waste management eliminates waste hauling, renders landfills useless, and generates a valuable commodity, compost. Let’s get started. The chemistry of composting: Aerobic Machines Vs.
Jan 1, 2024 · According to a survey, more than 380 million tons of livestock excrement is produced yearly in China, with pig manure (PM) accounting for most of excrement (Li et al., 2023, Yang et al., 2023a). PM, which is a waste of pig farming, contains abundant nutrients for plant growth (Mao et al., 2019, Tong et al., 2019).
The pig manure and rice-straw application to Cd-contaminated soil decreased Cd almost 40% ( Zhang et al., 2003 ). Similarly, a 4-year field experiment conducted by Xie et al. (2015) has proven that application of pig manure in a paddy field decreased Cd contents in grain, stem, and leaf by 37.5%, 44.0%, and 36.4%, respectively. Read more.
Anaerobic digestion of animal waste allows simultaneous energy recovery in biogas production, and the liquid end-product can provide bioavailable nutrients such as nitrogen (N), phosphorus (P
Jun 15, 2021 · In this study, the pig manure biogas digestate (PMBD) was evaluated as a potential part of seedling substrates and composting was considered a pretreating method to improve its characters. Composting was carried out firstly in a forced aeration composting system (100 L), in which perlite and sawdust were used as additives in different
Aug 2, 2023 · Composting is a sustainable and eco-friendly technology that turns animal waste into organic fertilizers. It remains unclear whether differences exist in the structure of microbial communities during different livestock manure composting. This study analyzed the dynamic change of bacterial and fungal communities, metabolic function, and trophic mode during chicken manure (CM) and pig manure
It is estimated that a medium sized pig of 110 lbs. (50 kg) will produce manure weighing 1600 lbs. (720 kg) in one year. If you add the food wastes, the annual total wastes of just one medium sized pet pig can exceed 2200 lbs. (1000 kg). Consequently, you must build in advance a waste management policy that is compliant, sustainable and
This research aims to establish the changes in physical and chemical characteristics of manure from cattle, horse, pig and poultry production during the composting process. The composting process was stopped after 9 months, when the compost was stable (2-4 mg CO 2-C g-1 OM d-1). Analysis of physical and chemical characteristics was conducted
Apr 29, 2023 · The production of biogas from manure reduces greenhouse gas emissions (nitrous oxide and methane) while producing a renewable fuel that can replace fossil fuels. For livestock farmers, manure can be a viable alternative energy source. An anaerobic digester converts manure into energy in the form of methane-rich biogas.
Jan 18, 2023 · There remains an urgent need for low-cost and effective additives to allow the simultaneous passivation of trace elements and removal of antibiotics during composting. Here, we investigated the effects of the addition of additives, white-rot fungi (WF), wood vinegar (PA), biochar (BC), and a mixture of the three (OAC), on trace element passivation, antibiotic degradation, composting
Co-composting of forest-derived wastes (chestnut forest burr, CST; scrubland biomass, SRB; industrial sludge, MDFS, from the Medium Density Fibreboard production process) watered with pig manure (PM) may constitute a feasible management technique for both solid and liquid streams. PM provided water and improved the carbon to nitrogen (C/N) ratio.