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Design parameters for biogas production in tropical rural villages (Record no. 27581)

MARC details
000 -LEADER
fixed length control field	03323nam a2200409 4500
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20260818090309.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field	310398 th eng
035 ## - SYSTEM CONTROL NUMBER
System control number	.b10192621
099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number	AIT Thesis no. 1404
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name	Pitak Kreatidadpanya
245 10 - TITLE STATEMENT
Title	Design parameters for biogas production in tropical rural villages
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc.	Bangkok :
Name of publisher, distributor, etc.	Asian Institute of Technology,
Date of publication, distribution, etc.	1978
300 ## - PHYSICAL DESCRIPTION
Extent	91 p.
490 1# - SERIES STATEMENT
Series statement	Thesis ;
Volume/sequential designation	no. 1404
500 ## - GENERAL NOTE
General note	A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand
502 ## - DISSERTATION NOTE
Dissertation note	Thesis (M.Eng.) - Asian Institute of Technology, 1978
520 ## - SUMMARY, ETC.
Summary, etc.	The purpose of this study was to investigate the optimum design parameters for biogas production in tropical rural villages using fixed cover type digesters which is similar to the Chinese system. Pig and poultry manures at different ratios of mixture were employed as raw materials fed to the digesters. For the batch biogas experiments (3 units) with varying pig : poultry ratios of 6.5 : 3.5, 5.0 : 5.0, 3.5 : 6.5, it was found that the highest gas production was obtained with the first ratio for a detention period of 20 days. With continuous feeding at different detention times of 20, 30 and 40 days, the following design parameters were observed to yield the most satisfactory results : Pig : Poultry ratio = 6.5 : 3.5, loading rate= 2 Kg VS/m3-day, detention time= 20 days, gas yield = 0.32 liter/g VS-day for a methane content of 71% and COD removal efficiency = 61%. Further experiments of these loading parameters with the pilot scale biogas units yielded similar results to that of the laboratory scale study. However, diurnal fluctuation in temperature was found to significantly affect the digester performance in term of gas production, but the mixed liquor pH in all digesters was within favorable range, i.e. 6.1-7.5. The red11ction of nitrogen and phosphorus after the study in batch digestion were 11% and 29%, respectively. This type of the biogas digesters was found to be relatively economic and easy in operation and maintenance.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element	Manure gases
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name	Chongrak Polprasert,
Relator term	Chairperson
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name	Samorn Muttamara,
Relator term	Co-Chairperson
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Lohani, Bindu N.,
Relator term	Examination Committee
710 2# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element	Canadian Government,
Relator term	Scholarship Donor
810 2# - SERIES ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element	Asian Institute of Technology.
Title of a work	Thesis ;
Volume/sequential designation	no. 1404
856 ## - ELECTRONIC LOCATION AND ACCESS
Materials specified	Full-Text
Uniform Resource Identifier	<a href="http://203.159.5.9/ait-thesis/detail.php?q=B23102">http://203.159.5.9/ait-thesis/detail.php?q=B23102</a>
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998 ## - LOCAL CONTROL INFORMATION (RLIN)
Operator's initials, OID (RLIN)	2
Cataloger's initials, CIN (RLIN)	951012
First date, FD (RLIN)	m
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945 ## - LOCAL PROCESSING INFORMATION (OCLC)
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945 ## - LOCAL PROCESSING INFORMATION (OCLC)
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945 ## - LOCAL PROCESSING INFORMATION (OCLC)
l	mnait
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	20-AIT Publication
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	40-Archives
909 ## - LOCAL ITEMS USED
Barcode	Barcode : 30050003352068
CREATED	CREATED : 1994-05-16
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Barcode	Barcode : 30050121035587
CREATED	CREATED : 2022-11-24
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Holdings
Not for loan	Home library	Current library	Shelving location	Date acquired	Full call number	Barcode	Date last seen	Copy number	Price effective from	Koha item type
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	AIT Publications	18/08/2026	AIT Thesis no. 1404	30050003352068	18/08/2026	2	18/08/2026	20-AIT Publication
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	Archives	18/08/2026	AIT Thesis no. 1404	30050160081997	18/08/2026		18/08/2026	40-Archives
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	AIT Publications	18/08/2026	AIT Thesis no. 1404	30050121035587	18/08/2026	1	18/08/2026	20-AIT Publication

Design parameters for biogas production in tropical rural villages (Record no. 27581)

AIT

Asian Institute of Technology Library