Anaerobic Digestion Treatment for the Mixture of Chinese Cabbage Waste Juice and Swine Manure

Kafle, Gopi Krishna; Kim, Sang Hun; Shin, B. S.

doi:10.5307/jbe.2012.37.1.058

Cited by 21 publications

(13 citation statements)

References 14 publications

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“…The pressure was measured using a WAL-BMP-Test system pressure gauge (Type 3150, Wal, Germany) . The methane concentration (CH 4 , %) and carbon dioxide concentration (CO 2 , %) in the biogas were measured using a gas analyser (BioGas Check, Geotechnical Instruments [UK], Ltd.) (Kafle et al, 2012a;Kafle and Kim, 2011). The CH 4 and CO 2 % were measured using a dual-wavelength infrared cell with a reference channel.…”

Section: Biogas Volume and Composition Analysismentioning

confidence: 99%

Effects of chemical compositions and ensiling on the biogas productivity and degradation rates of agricultural and food processing by-products

Kafle

Kim

2013

Bioresource Technology

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Section: Biogas Volume and Composition Analysismentioning

confidence: 99%

Effects of chemical compositions and ensiling on the biogas productivity and degradation rates of agricultural and food processing by-products

Kafle

Kim

2013

Bioresource Technology

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“…The GC was calibrated using standard gases consisting of CH 4 60% and CO 2 40% on a volume basis (v/v). The hydrogen sulfide concentration in the biogas was measured using a handy gas analyzer (BioGas Check -Geotechnical Instruments, UK) (Kafle et al, 2012a). The measured wet biogas and methane volumes were adjusted to the volumes at standard temperature (0℃) and pressure (1 atm) (VDI 4630, 2006).…”

Section: Biogas Volume/mass Measurement and Composition Analysismentioning

confidence: 99%

Evaluation of the Biogas Productivity Potential of Fish Waste: A Lab Scale Batch Study

Kafle¹,

Kim²

2012

Journal of Biosystems Engineering

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Purpose:The biogas productivity potential of fish waste (FW) was evaluated. Methods: Batch trials were carried out in 1.3 L glass digesters kept in a temperature controlled chambers at 36.5˚C. The first order kinetic model and the modified Gompertz model were evaluated for biogas production. The Chen and Hashimoto model was used to determine the critical hydraulic retention time (HRT Critical) for FW under mesophilic conditions. The feasibility of co-digestion of FW with animal manure was studied. Results: The biogas and methane potential of FW was found to be 757 and 554 mL/g VS, respectively. The methane content in the biogas produced from FW was found to be 73% and VS removal was found to be 77%. There was smaller difference between measured and predicted biogas production when using the modified Gompertz model (16.5%) than using first order kinetic model (31%). The time period for 80%-90% of biogas production (T80-90) from FW was calculated to be 50.3-53.5 days. Similarly, the HRT Critical for FW was calculated to be 13 days under mesophilic conditions. The methane production from swine manure (SM) and cow manure (CM) digesters could be enhanced by 13%-115% and 17%-152% by mixing 10%-90% of FW with SM and CM, respectively. Conclusions: The FW was found to be highly potential substrate for anaerobic digestion for biogas production. The modified Gompertz model could be more appropriate in describing anaerobic digestion process of FW. It could be promising for co-digestion of FW with animal manure.

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“…pH value was determined using a pH meter (YK-2001 PH, Taiwan) (Kafle and Kim, 2012a;Kafle and Kim, 2012b).The analysis of crude fiber (CF), CP, and Ether extract (EE) were done according to the methods described in AOAC (1990). The total volatile fatty acids (TVFA), total alkalinity (TA) were determined using the Nordmann-titration method (Kafle and Kim, 2011;Kafle et al, 2012;Kim and Kafle, 2010).…”

Section: Analytical Methods For Pig Manure Compositionsmentioning

confidence: 99%

Emissions of Odor, Ammonia, Hydrogen Sulfide, and Volatile Organic Compounds from Shallow-Pit Pig Nursery Rooms

Kafle¹,

Chen²

2014

Journal of Biosystems Engineering

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Purpose:The objective of this study was to measure emissions of gases (ammonia (NH3), hydrogen sulfide (H2S) and carbon dioxide (CO2)), volatile organic compounds (VOC) and odor from two shallow pit pig nursery rooms. Gas and odor reduction practices for swine operations based on the literature were also discussed. Methods: This study was conducted for 60 days at a commercial swine nursery facility which consisted of four identical rooms with mechanical ventilations. Two rooms (room 1 (R1) and room 2 (R2)) with different pig numbers and ventilation rates were used in this study. The pig manure from both the R1 and R2 were characterized. Indoor/outdoor temperatures, ventilation rates/duration, NH3, H2S, CO2, and VOC concentrations of the ventilation air were measured periodically (3-5 times/week). Odor concentrations of the ventilations were measured two times on two days. Three different types of gas and odor reduction practices (diet control, chemical method, and biological method) were discussed in this study. Results: The volatile solids to total solids ratio (VS/TS) and crude protein (CP) value of pig manure indicated the pig manure had high potential for gas and odor emissions. The NH3, H2S, CO2 and VOC concentrations were measured in the ranges of 1.0-13.3, 0.1-5.7, 1600-3000 and 0.0-1.83 ppm, respectively. The NH3 concentrations were found significantly higher than H2S concentrations for both rooms. The odor concentrations were measured in the range of 2853-4432 OUE/m 3 . There was significant difference in odor concentrations between the two rooms which was due to difference in pig numbers and ventilation duration. The literature studies showed that simultaneous use of dietary control and biofiltration practices will be more effective and environmentally friendly for gas and odor reductions from pig barns. Conclusions: The gas and odor concentrations measured in the ventilation air from the pig rooms indicate an acute need for using gas and odor mitigation technologies. Adopting diet control and biofiltration practices simultaneously could be the best option for mitigating gas and odor emissions from pig barns.

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Anaerobic Digestion Treatment for the Mixture of Chinese Cabbage Waste Juice and Swine Manure

Cited by 21 publications

References 14 publications

Effects of chemical compositions and ensiling on the biogas productivity and degradation rates of agricultural and food processing by-products

Effects of chemical compositions and ensiling on the biogas productivity and degradation rates of agricultural and food processing by-products

Evaluation of the Biogas Productivity Potential of Fish Waste: A Lab Scale Batch Study

Emissions of Odor, Ammonia, Hydrogen Sulfide, and Volatile Organic Compounds from Shallow-Pit Pig Nursery Rooms

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