Apr 29, 2023 · Biogas production and use can help mitigate many of the impacts of climate change by reducing methane and black carbon emissions, producing renewable energy (cleaner fuels for vehicles, cooking, heating, and electricity), capturing organic wastes, and reintroducing nutrients and organic matter to the soil. Graphical Abstract. Download chapter PDF.
Apr 10, 2021 · Switchgrass: Switchgrass, Panicum virgatum, is a herbaceous perennial summer grass, that provides several advantages such as seeding with conventional seeding machinery and a wide range of adaptability, thus, accepted as a good energy crop (Mitchell et al., 2008; Wright, 2007).
Abstract. Biohydrogen fermentation using liquid swine manure as substrate supplemented with glucose was investigated in this project. Experiments were conducted using a semi-continuously-fed fermenter (8L in total volume and 4 L in working volume) with varying pHs from 4.7 through 5.9 under controlled temperature (35+/-1 degrees C).
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
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
Apr 10, 2023 · April 10, 2023. Despite Challenges, Research Shows Opportunity To Increase Use of Manure as Fertilizer. by Nigel Key, Teng Lim, Ray Massey, and Laura McCann. Highlights: The value of manure as a fertilizer depends on where it is located, how expensive it is to transport and apply, and its crop nutrient composition.
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.
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).
Abstract. This paper performs a batch experiment for pre-acidification treatment and methane production from chicken manure by the two-stage anaerobic fermentation process. Results shows that the acetate was the main component in volatile fatty acids produced at the end of pre-acidification stage, accounting for 68% of the total amount. The
Due to the high demand for food and meat for the world's growing population, the agricultural sector is expanding every year. Timely and effective treatment is of utmost importance to utilize organic matter in agricultural waste and avoid environmental pollution. Composting or aerobic fermentation is an effective way to treat agricultural waste and produce organic fertilizer. Improving the
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
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
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).
Mar 22, 2023 · Farm Practices & Management. Crop & Livestock Practices. Manure Management. Manure management—how manure is captured, stored, treated, and used—has important implications for farm productivity and the environment. When applied according to the agronomic needs of crops, manure can improve productivity by reducing the need for commercial fertilizer.
Oct 8, 2020 · Recently, dry anaerobic co-digestion is one of the mechanisms which have been increasingly used to improve the reactor’s performance for treating livestock manure with agricultural crop residues. Due to carbohydrate, protein and lipid existing in agricultural wastes, biogas yield decreased with higher reactor volume when using wet anaerobic digestion. In this regard, the aim of this work was