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Design parameters for horizontal prefilter (Record no. 27582)

MARC details
000 -LEADER
fixed length control field	03419nam a2200421 4500
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20260818090310.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field	151098s1980 th r 0000\|0 eng d
035 ## - SYSTEM CONTROL NUMBER
System control number	.b10192633
099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number	AIT Thesis no.EV-80-11
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name	Hsieh, Kauo-hsiang
245 10 - TITLE STATEMENT
Title	Design parameters for horizontal prefilter
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc.	Bangkok :
Name of publisher, distributor, etc.	Asian Institute of Technology,
Date of publication, distribution, etc.	1980
300 ## - PHYSICAL DESCRIPTION
Extent	vi, 89 p.
490 1# - SERIES STATEMENT
Series statement	Thesis ;
Volume/sequential designation	no. EV-80-11
500 ## - GENERAL NOTE
General note	A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, school of Environment, Resources and Development
502 ## - DISSERTATION NOTE
Dissertation note	Thesis (M.Eng.) - Asian Institute of Technology, 1980
520 ## - SUMMARY, ETC.
Summary, etc.	A flow pattern investigation and two equations for predicting turbidity reduction in the horizontal prefilter are presented in this study. The turbidity removal of the artificial turbid influent which was prepared by mixing the tap water with Kaolin-Clay is affected by four parameters in this study. There are flow rate (Q) , size of filter coarse medium (d), length (L) and depth (D) of filter medium. The most predominant parameter of them affecting on turbidity removal through horizontal prefilter is length of filter medium (L), follow by flow rate (Q), size of filter coarse medium (d) and depth of filter medium (D) . The first empirical equation based on Reynold's Number can be expressed as follow: 2 3 p = 100 - Re + (Re) - (Re) 8.3 74 209 where p = turbidity reduction Re = Reynolds' Number in porous medium The second equation was derived from Hazen's (1904) concept indicating that turbidity reduction in filter was achieved by pores which are considered as a series of subdivisional. sedimentation units. It is presented as: -n p = 1 - (1+1 x v ) n D/ta where n = the number of subdivisional sedimentation units td = detention time And in the tracer study, real detention time was found approximately to be half of theoretical detention time, because of the short-circuiting and dead-zone in this filter.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element	Filters and filtration
General subdivision	Mathematical models
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Nguyen, Cong Thanh,
Relator term	Chairperson
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Watanabe, Yoshimasa,
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	Taiwan Power Co., Ltd., R.O.C.,
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. EV-80-11
856 ## - ELECTRONIC LOCATION AND ACCESS
Materials specified	Full-Text
Uniform Resource Identifier	<a href="http://203.159.5.9/ait-thesis/detail.php?q=B21969">http://203.159.5.9/ait-thesis/detail.php?q=B21969</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)
l	mnait
945 ## - LOCAL PROCESSING INFORMATION (OCLC)
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945 ## - LOCAL PROCESSING INFORMATION (OCLC)
l	mnait
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	22-AIT Thesis (Replacement)
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	40-Archives
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	14-General Book
909 ## - LOCAL ITEMS USED
Barcode	Barcode : 30050120656318
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Barcode	Barcode : 30050120903785
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Holdings
Not for loan	Home library	Current library	Shelving location	Date acquired	Cost, normal purchase price	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	50.00	AIT Thesis no.EV-80-11	30050120656318	18/08/2026	3	18/08/2026	22-AIT Thesis (Replacement)
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	Archives	18/08/2026		AIT Thesis no.EV-80-11	30050120226468	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.EV-80-11	30050120903785	18/08/2026	1	18/08/2026	14-General Book

Design parameters for horizontal prefilter (Record no. 27582)

AIT

Asian Institute of Technology Library