Analysis of Continuous High-Temperature Fermentation of Corn Straw and Chicken Manure and Characteristic of Fermentation Microorganism

The main objectives of this research were to determine the effect of leachate refluence on biogas production for dry mesophilic co-fermentation of chicken manure and corn straw. The biogas production, the ratio of biogas production, methane content and pH were analyzed. The results showed that the leachate refluence has a significant impact on biogas production of dry co-fermentation. The cumulative biogas yield of the once in 48h has an increase by 10% and 5% for no reflux and once in 24h, respectively. The leachate refluence has little influence on the methane content, but it has good effect to keep pH in the optimum rang.

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Effect of fipronil on biogas production performance during anaerobic digestion of chicken manure and corn straw

Journal of Environmental Science and Health Part B ◽

10.1080/03601234.2019.1592639 ◽

2019 ◽

Vol 54 (6) ◽

pp. 449-458 ◽

Cited By ~ 1

Author(s):

Xiongfeng Hu ◽

Haifu Jiang ◽

Yanjie Zhang ◽

Fuchuan Huang ◽

Mingsheng Jiang

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Production Performance ◽

Chicken Manure ◽

Corn Straw

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Research on Vegetable Waste Aeration Oxygen-Supply Compost and its Ammonia Volatilization

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.955-959.2845 ◽

2014 ◽

Vol 955-959 ◽

pp. 2845-2850

Author(s):

Yan Yang ◽

Ni Li ◽

Qin Ping Sun ◽

Ji Jin Li ◽

Ben Sheng Liu ◽

...

Keyword(s):

Physicochemical Properties ◽

Oxygen Supply ◽

Ammonia Volatilization ◽

Nitrogen Loss ◽

Chicken Manure ◽

Cattle Dung ◽

Vegetable Waste ◽

Corn Straw ◽

Composting Process

Normally, because the water content is generally high in vegetable waste, the quality of aerobic composting can not be guaranteed. In order to solve this problem, this experiment, regarding lettuce waste and pumpkin straw as researching objects, by adding corn straw as auxiliary materials, chicken manure and cattle dung as regulators, conducts research on the process of aerobic fermentation and the ammonia volatilization in this process. The experiment sets up six treatments in total, they are respectively: A1 (lettuce + corn straw), A2 (lettuce + corn straw + chicken manure), A3 (lettuce + corn straw + cattle dung), B1 (pumpkin straw + corn straw), B2 (pumpkin straw + corn straw + chicken manure) and B3 (pumpkin straw + corn straw + cattle dung). After all treatments being mixed, the aerobic compost is conducted through aeration oxygen-supply and the physicochemical properties and material changes in the composting process have been monitored. The results show that: adding cattle dung has a greater impact on the process of vegetable waste composting than adding chicken manure, where, the germination indexes (GI) A3 and B3 adding cattle dung are respectively 7.10% and 3.44% higher than those of A2 and B2 in adding chicken manure; after the composting the C/N of all treatments are lower than their initial values and reach a significant level (P<0.0001), among them, C/Ns of A3 and B3 decrease to the greatest extent, which are 52.84% and 53% respectively; in the whole composting process, the quantity of ammonia volatilization in treatments adding chicken manure (A2 and B2) is significantly higher than that of adding cattle dung (A3 and B3). On the whole, adding cattle dung can better promote the decomposing process in vegetable waste composting and reduce nitrogen loss than adding chicken manure under conditions in this experiment.

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Study of Methane Production by High Temperature Anaerobic Fermentation of Chicken Manure and Stalks

Journal of Biobased Materials and Bioenergy ◽

10.1166/jbmb.2020.1978 ◽

2020 ◽

Vol 14 (4) ◽

pp. 551-557

Author(s):

Yongku Li ◽

Xiaomin Hu ◽

Lei Feng

Keyword(s):

High Temperature ◽

Anaerobic Digestion ◽

Production Rate ◽

Methane Production ◽

Anaerobic Fermentation ◽

Biogas Production ◽

Gas Production ◽

Chicken Manure ◽

Biogas Slurry ◽

Production Rates

The changing parameters, as the biogas production rate, the methane production rate, the cumulative biogas amount, the cumulative methane amount, the biogas composition, pH etc. in high temperature anaerobic fermentation of chicken manure and stalks were analyzed by experiments with different mass ratios of chicken manure or livestock manure and stalks with a high C/N ratio. The methane production mechanism of high temperature anaerobic digestion of chicken manure and stalks was discussed in detail. It showed that not only the biogas production rates but also the methane production rates of R1–R7 demonstrated the trend of initial increase and then decrease after 50 d of high temperature anaerobic digestion. Besides, the gas production of R1 with pure chicken manure stopped on the 30th d of the reaction. The gas production of other groups R2–R7 also stopped on the corresponding 34th, 36th, 36th, 37th, 37th, and 37th day, respectively. At the end of the reaction, the cumulative biogas amounts and the cumulative methane amounts of R1–R7 were 411.58 and 269.54, 459.91 and 314.41, 425.32 and 294.11, 401.85 and 272.54, 382.63 and 257.07, 363.04 and 218.16, and 257.15 and 160.10 N ml/(g VS). The biogas slurry pH of R1–R7 all demonstrated a trend of initial decrease and then increase, e. g., pH of R2 reached the minimum of 5.94 on the 5th day. pH values of other groups were between 6.01 and 6.39. After the addition of 4 g of sodium bicarbonate on the 7th day, biogas slurry pH of R1–R7 all increased. pH was maintained between 7.16 and 7.44 until the end of the reaction.

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