Apr 1, 2015 · Abstract. A down plug-flow anaerobic reactor (DPAR) was designed for the feasibility study on continuous dry fermentation of swine manure without any additional stirring. Using fresh swine manure as the feedstock with TS concentration (w/w) of 20%, 25%, 30%, and 35%, stable volumetric biogas production rates of 2.40, 1.92, 0.911, and 0.644 L
Manure Management☆ Amy L. Shober, Rory O. Maguire, in Reference Module in Earth Systems and Environmental Sciences, 2018 Trends in Manure Production. Manure production by species varies widely by region; for example production of goats, sheep, and cattle dominate in Africa (Table 1), cattle production is common in South America and production of all animal types is common in Asia (FAO, 2018).
Nov 11, 2022 · Acidogenic fermentation of chicken manure (CM) for production and recovery of volatile fatty acids (VFA) is an interesting biological waste-to-value approach compared to benchmark organic waste management strategies. Considering the wide range of high value applications of VFA, a semi-continuous immersed anaerobic membrane bioreactor (AnMBR) was applied to boost VFA productivity and yield
Oct 14, 2020 · It has now passed more than forty years since solid-state fermentation (SSF) research developments have gained importance for the scientific community. After so many years, numerous processes and equipment for SSF were studied and designed focusing on the production of different commercially relevant bioproducts such as enzymes, fermented food, such as Chinese daqu and koji, organic acids
Jan 21, 2022 · The processes involved in soil domestication have altered the soil microbial ecology. We examined the question of whether animal manure application affects the soil microbial ecology of farmlands. The effects of global animal manure application on soil microorganisms were subjected to a meta-analysis based on randomized controlled treatments. A total of 2303 studies conducted in the last 30
Jun 1, 2010 · To determine an optimal mixture of water hyacinth and pig manure, we explored four different combinations (Table 1).The mixtures were put into one (underground fermentation tank team 1 seen from Fig. 1) of the two groups of underground digesters whereas the other group (underground fermentation tank team 2 seen from Fig. 1) was used as the experimental control (CK), filled with 100% pig manure.
Feb 1, 2011 · The investigations presented and discussed herein establish an enhanced understanding on volatile fatty acid (VFA) production as a function of dairy manure fermenter organic loading (OL) and retention time (RT), first through a factorial of 64 fermentation potential (FP) batch tests, followed by analysis of a continuously operated pilot-scale
Nov 1, 2009 · The substrate for fermentation consisted primarily of liquid swine manure supplemented with glucose and limited amounts of trace minerals to assist the growth of hydrogen-producing bacteria, mainly Clostridium sp. The added nutrients in mg L -1 include: CoCl 2 · 5H 2 O, 0.125; FeSO 4, 55; Glucose, 10,000; K 2 HPO 4, 125; MgCl 2 · 6H 2 O, 100
Manure fermentation is a biological process that occurs under anaerobic conditions, which means in the absence of oxygen. The process involves the breakdown of organic matter by microorganisms into simpler compounds, mainly biogas, which is a mixture of methane and carbon dioxide.
Dec 15, 2022 · A whole life cycle perspective demonstrates that rearing ruminants that utilize human-inedible biomass, instead of monogastric livestock that require grain for feed, can shift cropland demand from
Nov 12, 2018 · The livestock sector requires a significant amount of natural resources and is responsible for about 14.5% of total anthropogenic greenhouse gas emissions (7.1 Gigatonnes of carbon dioxide equivalents for the year 2005; Gerber et al., 2013 ). Mitigation strategies aimed at reducing emissions of this sector are needed to limit the environmental
Jan 1, 2021 · 2.2. Experimental design2.2.1. Primary fermentation. A total of 250 kg composting mixture was placed in a box-type integrated reactor with a working volume of 1.44 m 3 (4 m × 0.6 m × 0.6 m), which was composed of a fermentation bin, spiral feeder, feeding chain plate, and agitator, and was equipped with temperature and oxygen sensors and a flowmeter.
Dec 20, 2021 · Four experimental diets were formulated. Diet 1, the amount of fermented pig waste residue in the diet that replaces fish meal is 0%. The other four diets (diets 2–4) contained 5%, 10%, and 15% fish meal, which was formulated to be a high-quality commercial tilapia fish diet (Fig. 1).
Feb 2, 2024 · Description. Anaerobic digestion is a process through which microorganisms break down organic matter—such as animal manure, wastewater biosolids, and food wastes—in the absence of oxygen. Anaerobic digestion with biogas flaring or utilization reduces overall methane emissions and provides many benefits.
Nov 9, 2017 · Background Pig manure utilization and valorization is an important topic with tightening regulations focused on ecological and safety issues. By itself pig manure is a poor substrate for biogas production because of its excessive nitrogen content relative to available organic carbon. Such substrate is alkaline, and methanogenesis can be suppressed, and so additional substrates with high
