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008 271098s1981 th r 000| eng d
035 _a.b10229590
099 9 _aAIT Thesis no.EV-81-8
100 1 _aTanumiharja, Yani Indriani
245 1 0 _aEffectiveness of plastic media in removing turbidity in horizontal flow filter
260 _aBangkok :
_bAsian Institute of Technology,
_c1981
300 _a35 leaves :
_bill.
490 1 _aThesis ;
_vno. EV-81-8
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1981
520 _aA bench-scale horizontal filter was used to study the effectiveness of the plastic media as a filter media. The various parameters affecting the filter performances were studied and the transport mechanism was investigated. Experiments were conducted by varying raw water turbidities and flow rates. It was found that the plastic balls were efficient in removing suspended solids only in the range of 30 to 60%. The optimum flow rate for this removal of small particle of suspended solids was 1.5 m3/m2 h for the different levels of influent turbidities. For bigger particle size, the optimum flow rates were 0.5 m3/m2 h, 1.0 m3/m2 h and 1.5 m3/m2 h for influent turbidity levels of 150 FTU, 100 FTU and 50 FTU, respectively. The predominant transport mechanisms in this study were hydrodynamic action and gravity. The others mechanisms were not found to be significant
650 0 _aWater
_xPurification
_xFiltration
650 0 _aFilters and filtration
700 1 _aNguyen, Cong Thanh,
_eChairperson
700 1 _aWatanabe, Yoshimasa,
_eCo-Chairperson
700 0 _aChongrak Polprasert,
_eExamination Committee
710 2 _aGovernment of the Federal Republic of Germany,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-81-8
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21598
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