Design, Fabrication and Experimentation of a Small Scale Anaerobic Biodigester for Domestic Biodegradable Solid Waste with Energy Recovery and Sizing Calculations

Jyothilakshmi, R.; Prakash, Surya

doi:10.1016/j.proenv.2016.07.085

Cited by 26 publications

(23 citation statements)

References 2 publications

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“…The bio-digesters were equipped with a digestion chamber, slurry inlet from the top cover, thermometer fixed at the top cover of the bio-digesters, biogas outlet from the top cover and tap head for sampling. The total volume of each bio-digester was 4.63 L with a working volume of 3.70 L and gas storage bag of 2.00 L [13], [18], [19] & [20]. Furthermore, the temperature of the bio-digester content was monitored using thermometer with temperature ranges between 0-100 o C.…”

Section: Experimental Design and Fabrication Of Biodigestersmentioning

confidence: 99%

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Biogas Production from Combined Irish Potato and Poultry Wastes: Optimization and Kinetic Studies

Ibrahim¹,

Ahmed²,

Gutti³

et al. 2018

IJET

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The combination of Irish potato waste (IPW) and poultry waste (PW) can form a synergy resulting into an effective substrate for a better biogas production due to some materials they contain. In this work, optimization and kinetic study of biogas production from anaerobic digestion of IPW and PW was investigated. Response surface methodology (RSM) was applied to optimize conditions such as initial pH, solids concentrations and waste ratios. The anaerobic digestion of the two wastes was carried out in the mesophilic condition and Box-Behnken design (BBD) was used to develop and analyze a predictive model which describes the biogas yield. The results revealed that there is a good fit between the experimental and the predicted biogas yield as revealed by the coefficient of determination (R2) value of 97.93%. Optimization using quadratic RSM predicts biogas yield of 19.75% at the optimal conditions of initial pH value 7.28, solids concentration (w/v) 9.85% and waste ratio (IPW:PW) 45:55%. The reaction was observed to have followed a first order kinetics having R2 and relative squared error (RSE) values of 90.61 and 9.63% respectively. Kinetic parameters, such as rate constant and half-life of the biogas yield were evaluated at optimum conditions to be 0.0392 day-1 and 17.68 days respectively. The optimum conditions and kinetic parameters generated from this research can be used to design real bio-digesters, monitor substrate concentrations, simulate biochemical processes and predict performance of bio-digesters using IPW and PW as substrate.

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Section: Experimental Design and Fabrication Of Biodigestersmentioning

confidence: 99%

“…Stirring of the slurry was done in the afternoon for 1 minute and the temperature of the bio-digesters were monitored daily. Retention time for the anaerobic digestion was 35 days [6] & [18]. The biogas yield (Y) was evaluated using (…”

Section: Preparation Of Solutions and Biogas Productionmentioning

confidence: 99%

Biogas Production from Combined Irish Potato and Poultry Wastes: Optimization and Kinetic Studies

Ibrahim¹,

Ahmed²,

Gutti³

et al. 2018

IJET

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“…A static scum-breaking device in the form of nylon net has been incorporated in a fixed-dome biogas plant to control scum formation and to provide a limited amount of stirring [4]. A portable bio-digester should be fabricated with consideration of economic and ergonomic factors with maximum efficiency in production of methane gas [5].…”

Section: Introductionmentioning

confidence: 99%

“…The anaerobic digester cylinder with diameter 76 cm and length 122 cm was obtained by rolling the stainless steel plate. The anaerobic digester cylinder was mounted horizontally for ergonomic design and easy loading [5]. The manufacture of the stainless steel anaerobic digester utilizes tungsten inert gas (TIG) welding technique.…”

Section: Introductionmentioning

confidence: 99%

The effect of loading rate to biogas production rate of the 500 liter anaerobic digester operated with continuous system

et al. 2019

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Conventional anaerobic digester such as fixed dome and floating drum are found having drawback in application in developing country. It was difficult in maintenance and operation. It was also difficult to relocate to the new site of waste processing. The portable anaerobic digester is prepared in this work as a solution. The capacity is about 500 liter so that suitable for home scale organic waste treatment. The material that is used for the digester was 304 stainless steel. The digester is completed wit agitator to optimize the biogas production. A slurry of cow dung (50% cow dung+ 50% water) is use to feed the digester. There are 2 variations of slurry loading rate that were investigated in this work, namely 5 liter slurry/day and 10 liter slurry/day. The biogas production rate is found about 51.7 liter biogas/day if loading with 5 liter slurry/ day. The biogas production rate is found increase significantly to become 82 liter biogas/day if loading with 10 liter slurry/day. The quality of biogas is found better with loading rate 5 liter slurry/day which has average CH4 content about 58.75% vol. comparing the one with loading rate 10liter slurry/day that have average CH4 content about 56.40% vol., 0 (201 Web of Conferences

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“…In this study, animal's waste from zoo will be as a study for implimenting biodigester technology in order to reducing pollution loads to the river [1,2]. Small size of biodigester plant had become famous option for biodigester studies [4].…”

Section: Introductionmentioning

confidence: 99%

Animals Waste Treatment Using Biodigester

2016

IJAAEE

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Abstract-This paper present the investigation on animal's waste treatment by using biodigester. Previously, biodigester has been used widely around the world as an alternative disposal method beside landfill that is more environmental friendly. In the awareness of environmental issue such as leachate pollution, the biodigester is capable to improve surface water and increase water resources quality. The objective of the study is to identify the effeciency of the treatment method for animal's waste using biodigester. In this study, animal's waste were collected from Zoo Negara Malaysia as sources to the biodigester. It is consisted of selected animal's waste from elephants, giraffe, zebra, rhinoceros and etc. The waste was manually screened to remove the course contaminants before be grinded to form a stable paste. Then, the stable paste were diluted and pumped into biodigester tank to be treated in few days and resulting better effluent discharged. The inffluent that had been treated through biodigester had significantly decreased the water quality parameter such as biological oxygen demands (BOD), chemical oxygen demands (COD), ammoniacal nitrogen (NH3-N) and total suspended solid (TSS) in range from 32% to 81%. This had identified that wastewater treatment from animal's waste wastewater could possible using biodigester technology. The biodigester had been proven that the method could treat the animal's inffluent efficiently for a better water quality result, competing the conventional wastewater treatment plant in reducing operational area and cost. Further study could be done for any type of animal's waste at zoo in future as an added value in order to save environment.

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Design, Fabrication and Experimentation of a Small Scale Anaerobic Biodigester for Domestic Biodegradable Solid Waste with Energy Recovery and Sizing Calculations

Cited by 26 publications

References 2 publications

Biogas Production from Combined Irish Potato and Poultry Wastes: Optimization and Kinetic Studies

Biogas Production from Combined Irish Potato and Poultry Wastes: Optimization and Kinetic Studies

The effect of loading rate to biogas production rate of the 500 liter anaerobic digester operated with continuous system

Animals Waste Treatment Using Biodigester

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