Apr 1, 2024 · Coal slime increased methane yield from chicken manure. • Biogas yield of chicken manure was analyzed by response surface methodology. • Key metabolic functions of substrate metabolism were efficiently expressed. • Coal slime enrichment led to an increased abundance of key genes related to DIET.
Nov 12, 2021 · This research aims to build a smart solar chicken manure fermentation system to control the conditions of chicken manure fermentation effectively, improve quality, and solve the problems of environmental pollution.
recommend that this system could be used as an efficient treatment for chicken manure materials to decompose and get a valuable base organic fertilizer. Key words: chicken manure, fermentation, decompose, temperature and moisture model INTRODUCTION Chicken manure is very high in nitrogen and also contains a good
Oct 1, 2020 · The latest data of chicken manure quantities and their distribution according to the counties are shown on the map (Fig. 1). According to logically reasonable chicken manure transportation distances, it is most advantageous to use chicken manure in the anaerobic digestion power plants operating in Vilnius, Šiauliai, Panevėžys districts.
Feb 10, 2022 · The original uses of EM were in agriculture to increase the productivity of organic farming systems [].Today, EM are often applied to the soil directly as part of the organic matter added to the fields, either as manure or other fertilizer, or provided as part of a compost that has been prepared using EM as an additive to improve and shorten the maturation process.
Aug 21, 2023 · This study explored the effects of turning frequency on fermentation efficiency and microbial metabolic function of sheep manure composting on the Qinghai–Tibet Plateau (QTP). Five treatments with different turning frequencies were set up in this study: turning every 1 day (T1), 2 days (T2), 4 days (T3), 6 days (T4), and 8 days (T5). Results showed that the high temperature period for T1 and
May 2, 2022 · Batch experiments were performed to evaluate the biohydrogen and biomethane production by co-digestion of chicken manure and food waste in a two-stage mesophilic fermentation process. Results showed that no hydrogen was produced in the first stage of sole chicken manure fermentation, while methane yield was 247.3 mL·g−1-VS. By comparison, the co-digestion process with food waste proportions
Jun 1, 2024 · Treating chicken manure (CM) through anaerobic digestion encounters a hurdle due to its high nitrogen content, leading to volatile fatty acid accumulation and methanogenesis disruption. To overcome this, redirecting the process to yield soluble metabolite products (SMPs) and hydrogen is proposed.
Apr 1, 2024 · 2.2. Fermentation operation. The mixed sludge and chicken manure were fermented at different pH under the optimal dosage ratio. The pH was adjusted by appropriate dosage of 2 M hydrochloric acid (HCl) or 2 M sodium hydroxide (NaOH) to 3.0, 5.0, 7.0, 9.0 and 11.0, respectively.
Two-stage fermentation process with pre-acidification stage and subsequence methane production stage was utilized in this study, and the component of volatile fatty acids (VFAs), methane yield and volatile solid (VS) removal efficiency were investigated to estimate the fermentation efficiency of chicken manure.
Mar 5, 2024 · Abstract. The paper presents data on the study of the kinetics of gas formation from chicken manure under thermophilic conditions. It was shown that the volume of biogas for 30 days in the control variant did not exceed 85 dm 3, whereas with the addition of 10 and 20% of the balanced thermophilic methanogenic association as an inoculate was 150 and 180 dm 3, respectively, and the methane
May 1, 2019 · Recently, chicken manure (CM) annual production is over than 100 Mt dry weight, and sheep manure (SM) is also as high as 94.3 Mt in China (Jia et al., 2018, Tong et al., 2014). These manures together contributed more than one-third of the total manure nitrogen production with potential secondary pollution.
Jul 15, 2023 · The present study aimed to evaluate the anaerobic co-digestion process of chicken manure and corn stover to identify the key parameters that influence methane production. Results from both batch and semi-continuous tests showed that co-digestion enhanced methane production, with an optimal chicken manure to corn stover ratio of 2:1 under experimental conditions. When this ratio was maintained
Jun 22, 2024 · This difference in duration may be attributed to the respective compositional properties of cow and sheep manure affecting fermentation efficiency. Comparatively, whole sheep manure, sheep manure mixed 1:1 with cow manure, and sheep manure mixed 1:2 with cow manure followed each other in their respective complete putrefaction cycles.
Jul 1, 2023 · Wan et al. (2020) have built an aerated static box to increase efficiency and promote maturity in chicken manure fermentation by thermo-energy maintenance. Li et al. (2013) have conducted fecal fermentation by using an aerobic fermentation reactor with high chemical oxygen demand removal and restrained nitrogen loss.