tion, composting enhancement, and compost quality improvement during the aerobic composting of pig manure. We found that the passivation rate of Cu and Zn, in addition to the removal eciency of sulfadiazine (SDZ) and noroxacin (NFC), was enhanced with WF, PA, BC, and OAC treatment in comparison with the control. Moreover, the co-addition of BC, PA,
Oct 3, 2022 · Antibiotic resistance caused by antibiotic resistance genes (ARGs) threatens human health. ARGs in animal manure can be degraded by composting. This study explored the changes in ARGs and microbial communities during co-composting of pig manure and tea stalks with (T) thermophilic microbial agents, including Geobacillus toebii ZF1 and Geobacillus sp. ZF2 for 15 days in a 4 L vacuum flask
Turning manure is essential to composting manure. Turning compost incorporates oxygen into the system, homogenizes the pile and breaks up clumps. Turning allows more contact of manure with microbes. Producers have various ways to turn the pile. The two most common for turning compost are with a windrow turner (Figure 7) or bucket tractor.
Jul 1, 2020 · By investigating the profile variation of 36 ARGs and 4 mobile genetic elements (MGEs), the succession of bacterial communities and the change in physicochemical factors during pig manure composting, this study aimed to: 1) determine the environmental behaviors and removal efficiencies of ARGs in pig manure composting; 2) determine the impact
Nov 1, 2023 · Moisture content of pig manure and wheat stalk was 65.3% and 7.4%, respectively. Composting was conducted in rectangular insulated fermentation boxes with a volume of 60 L (63 cm × 48 cm × 36 cm). Each composting pile contained 15 kg of raw materials (pig manure:wheat stalk = 5:1) in fresh weight.
This equipment consists of transmission device, running gear, turning device and other main components. During turning, SEEC wheel type compost turner can blend the raw material and treated pig manure will be moved 0.7 meter to 1 meter away. By this method, you can realize high-efficiency turning and uniform blend.
In order to study the feasibility of using GM cotton stalks for composting and the changes that occur in antibiotic resistance genes (ARGs) during composting, we supplemented pig manure with GM or non-GM cotton stalks during composting and we compared their effects on the absolute abundances (AA) of intI1, intI2, and ARGs under the two treatments.
May 1, 2024 · The tested strain X1 was isolated from the fresh pig manure sample after the aerobic compost fermentation process. The solid Luria-Bertani (LB) medium containing 10 mg/L of Cd 2+ and 100 mg/L of Zn 2+ was used to isolate bacteria with heavy metal tolerance. Five grams of the fresh compost sample were oscillated in a triangular flask containing
Apr 5, 2024 · Start by building a pile with a mix of organic matter, like kitchen scraps, dried grass, leaves, paper, and straw. Add soil and pig manure from the pig farm to the ingredients, and spray the pile with water so it’s moist and not wet. The most important part of composting pig manure is to ensure the pile has high heat.
Mix everything well and be sure to keep it moist (though not sodden) to start the decomposition action. At least once a month, head to your compost pile and turn it with a pitchfork. This will supply the compost with air, which is necessary to help get the microbes going. It will also further mix the ingredients, too.
aerobic composting process parameters on manure-sourced ARGs is important to control their spreading risk. In this study, the eects of process parameters on ARGs during aerobic composting of pig manure were explored through data mining based on 191 valid data collected from literature. Machine learning (ML) models (XGBoost and Random Forest) were
Jul 1, 2020 · A total of 13 potential pathogenic bacteria were identified in the pig manure composting process, among which Enterococcus faecalis and Agrobacterium vitis accounted for the largest proportions (12%).
Oct 15, 2023 · During composting, pH is a crucial indicator of microbial activity and population composition [51].The variation in pH values during composting is also shown in Fig. 1.At the start of the composting process (Day 0), the pH of BPA pile mixture was 4.3, known to be due to food waste acidification, which produces organic acids as well as some volatile acids of low-molecular-weight
Jan 14, 2022 · Previous studies reported that inoculation of microbes into the composting led to improved mineralization , accelerated the composting process of OPEFB from 64 days to 50 days and enhanced the compost maturity of rice straw and cattle manure by an increase in total nitrogen, phosphorus and potassium content .
Jul 15, 2019 · Due to the intensive use of feed additives in livestock farming, animal manure has become a hotspot for antibiotics, heavy metals, and antibiotic resistance genes (ARGs). Unlike antibiotics, heavy metals cannot be degraded during composting and thus could pose a persistent co-selective pressure in the proliferation of antibiotic resistance.
