residue in the fermentation proc ess, so biogas residue basically retains all the components of anaerobic fermentation production besides the gas. Biogas residue generally contains organic matter 36% to 49.9%, humic acid
2017/3/25/ · Studies showed that fermentation of feed ingredients can promote growth performance , digestibility of amino acids and distiller’s yeast was added to a final content of 10% based on weight. The biogas residue was aerobic fermented 48 h, then dried and crushed. The yield contained 92.01% dry materials, 21.87% crude protein, 6.35% crude
2015/5/1/ · Monitoring for biogas residue quality, soils and plant growth Considering the potential benefits and risks of biogas residues (BRs) used as biofertilizers, it is of paramount importance to ensure the quality of digestates prior to their application to agricultural soil, so to prevent any negative environmental impact ( Fig. 1 ).
2023/9/5/ · Increased biogas residue related to the rapid development of anaerobic fermentation has become an urgent environmental problem. The pyrolysis of biogas residue into biochar is one of the most promising treatments. In this study, biochar derived from biogas residue was prepared, and the degradation efficiency of phenol by
2017/5/1/ · Afterwards, these materials were blended in proportions of 1:1, 1.8:1, 2.8:1, and 3.8:1 based on their dry mass. The biogas slurry (water content of 84.1%) from final-stage fermentation, taken from a normal biogas digester used in the poultry feeding industry in the Central China Economic District, was used as the inoculation.
2021/4/20/ · Modified biochars prepared from straw, pig manure, and chicken manure biogas residues were used to adsorb and remove ammonium nitrogen (NH4+-N) and chemical oxygen demand (COD) in wastewater. The results showed that at 400–600°C, the adsorption performance of the biogas residue biochars increased with pyrolysis
2023/10/19/ · The utilization of biogas and biogas residues is an important objective of animal manure resource management. Regarding the environmental friendliness and economic suitability of utilization modes, previous studies have evaluated and compared biogas or biogas residue individually, which may lead to incomplete environmental and
Biogas fermentation residue could also increase the amount of soil microorganisms. The microbial biomass-C and biomass-N were 59.44% and 56.06% higher than the control, respectively. It was suggested that biogas fermentation residue application could bring better economic and environmental benefits for Z. jujuba cultivation, and also, provide a
2024/1/1/ · The remediation plant (Pennisetum hybrid) and anaerobic fermentation residues (biogas slurry and biogas residue) were provided by Ganzhou Ruiyuan Biotechnology Co., Ltd. in Jiangxi Province (China), which had a large-scale biogas project (20,000 m 3) for the centralization treatment of animal manures from 34 large-scale farms
2022/1/4/ · The residual slurry obtained from the anaerobic digestion (AD) of biogas feed substrates such as livestock dung is known as BGS. BGS is a rich source of nutrients and bioactive compounds having an important role in establishing diverse microbial communities, accelerating nutrient use efficiency, and promoting overall soil and plant
2020/6/1/ · This is possibly caused by incompletely fermented biogas slurry and residue in the hydraulic chamber, as they continued to ferment and produce CH 4 in the anaerobic environment, and finally the gas was released as bubbles (Wang, 2012). Download : Download high-res image (611KB) Download : Download full-size image; Fig. 3.
2012/9/1/ · 1. Introduction. Energy crisis and global warming are considered to be two most serious problems worldwide [1].Biomass energy, as a renewable and sustainable form of energy, is becoming more important due to its environmentally-sound and energy-saving production [2].Development of a livestock industry is believed to be a key
Anaerobic Digestion in a Biogas Digester is the process in which bacteria biodegrade organic materials – such as solid animal manure, bio waste, and food waste – in the absence of oxygen (o2). Biogas production in a Biogas Digester is done in gas-sealed units called digesters, which are designed and built in different forms and sizes
the accumulation of biogas residue in three years reached 350 tons. Managing these biogas residues is a challenge for every farmer. During anaerobic fermentation of pig manure, most of the phosphorus is deposited in biogas residue. The phosphorus content in biogas residue can reach 2–5% (w/w) (Deng et al. 2015), which constitutes a P-rich waste.