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008 271098s1981 th r 000| 0eng d
035 _a.b10521434
099 9 _aAIT Thesis no.EV-81-16
100 1 _aRicarte, Hilario P.,
_cJr.
245 1 0 _aPretreatment alternatives for wastewater from oil tank farm and related oil product manufacturing
260 _aBangkok :
_bAsian Institute of Technology,
_c1981
300 _a121 :
_bill.
490 1 _aThesis ;
_vno. EV-81-16
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 _aShell CNS 'oil installation was utilized as a case study for its oily waste problem. Investigations were carried out on the existing treatment system believed to be ineffective. Sources and characteristics of waste~ water from oil tank farm and related oil product manufacturing were evalu- ated. Treatability studies of discharges with very high oil concentrations (mainly free oil and tempOrary emulsions) ranging from 70 to 2,240 mg/l were conducted using two types of 6il separators, namely, oil interceptor and compact plate separator (CPS). Performance of the oil interceptor~ a very simple form of gravity separator ·for oil-water mixtures,revealed a removal efficiency as high as 90% with effluent concentration of less than 15 mg/l oil and grease for a properly designed and maintained unit. Pilot-plant o~eration of the compact plate separator at the optimum flow rate of 2.5 m /h demonstrated an oil removal efficiency of more than 90% even without external heating. -However, better effluents were observed when it was coupled with an oil interceptor.serving as auxiliary unit. Both treatment systems are inexpensive from the point of view of a wealthy industry.
650 0 _aSewage
_xPurification
_xRotating disc process
700 0 _aSamorn Muttamara,
_eChairperson
700 1 _aNguyen, Cong Thanh,
_eCo-Chairperson
700 1 _aWatanabe, Yoshimasa,
_eExamination Committee
710 2 _aGovernment of Japan,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-81-16
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21613
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