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Biological treatment of hazardous contaminants in sequencing batch reacors

Al-Harazin, Ibrahim Muhammad (1992) Biological treatment of hazardous contaminants in sequencing batch reacors. Masters thesis, King Fahd University of Petroleum and Minerals.


Arabic Abstract


English Abstract

The effect of the organic loading rates and the solids residence time (SRT) on the aerobic treatment of phenol and o-cresol bearing wastewater by sequencing batch reactors (SBRs) was investigated. SBRs were utilized to treat phenol and o-cresol, aerobically at a hydraulic retention time (HRT) of one day and varying SRTs. The reactors achieved over 99.5% removal of phenol and o-crsol at toxicant loading in the ranges of 100-800 kg phenol/m³-day at SRTs of 10 days and above with the effluent BOD and TSS concentrations consistently about 5 and 12 mg/1, respectively. However, a rapid breakthrough resulting in only 65% removal efficiency of phenolics at loads of 800 kg phenol/m³-day occurred at 3 and 5-day for phenol, and o-cresol, respectively, simultaneously with a breakthrough of total suspended solids (TSS). The rapid deterioration in effluent quality ensued toxicant loadings of 0.7 mg phenol/mg MLVSS and 0.8 mg cresol/mg MLVSS. Better than 94% phenol removal efficiency was achievable at the 5-day SRT biotreatment.

Item Type:Thesis (Masters)
Date:January 1992
Date Type:Completion
Subjects:Civil Engineering
Divisions:College Of Engineering Sciences > Civil Engineering Dept
Creators:Al-Harazin, Ibrahim Muhammad
Committee Advisor:Nakhla, Girgis F.
Committee Members:Hussain, M. Sakhawat and Osei-Twum, E. Y. and Farooq, Shaukat
ID Code:9962
Deposited By:KFUPM ePrints Admin
Deposited On:22 Jun 2008 16:53
Last Modified:25 Apr 2011 09:40

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