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Kinetic studies of biogas generation using municipal waste as feed stock

Paper ID Volume ID Publish Year Pages File Format Full-Text
18794 42743 2006 11 PDF Available
Title
Kinetic studies of biogas generation using municipal waste as feed stock
Abstract

A comprehensive study has been made on biogas kinetics from municipal waste. A 10 dm3 anaerobic batch digester equipped with a mechanical agitator has been used under controlled environment (pH 6.8, temperature = 40 °C) for this purpose. Influent slurry concentration varied from 20 to 56 kg/m3. At 20 kg/m3 the concentration of carbohydrate, protein and fat varied from 0.83 to 2.0 kg/m3, 0.25 to 0.70 kg/m3 and 0.26 to 0.56 kg/m3, respectively. The biogas generated from the digester had the methane concentration as high as 80% (v/v) at an influent slurry concentration of 20 kg/m3 on the 15th operating day of the digester. The calorific value of biogas obtained from the digester is in the range of 27.98–31.46 MJ/(N m3). An attempt has been made to separate both acidogenic and methanogenic bacterial consortia. It has been noted that classical Monod-type substrate uninhibited model equation can be used to predict the growth kinetics of separated bacterial consortia of both types. Biogas generation kinetics was studied using initial influent slurry, carbohydrate, protein and fat concentrations as parameters. By judiciously coupling differential mass balance equations, mathematical model equations were obtained.

Keywords
Kinetic studies; Biogas; Municipal waste
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 38, Issues 3–4, 1 February 2006, Pages 493–503
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us