عنوان

Biological treatment of hazardous contaminants in sequencing batch reactors

Number

TLpq230751352

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Biological treatment of hazardous contaminants in sequencing batch reactors

General Material Designation

[Thesis]

First Statement of Responsibility

I. M. Al-Harazin

Name of Publisher, Distributor, etc.

King Fahd University of Petroleum and Minerals (Saudi Arabia)

Date of Publication, Distribution, etc.

1992

Specific Material Designation and Extent of Item

184

Dissertation or thesis details and type of degree

M.S.

Body granting the degree

King Fahd University of Petroleum and Minerals (Saudi Arabia)

Text preceding or following the note

1992

Text of Note

The effect of 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-cresol at toxicant loading in the ranges of 100-800 kg phenol/m-day and 100-600 kg cresol/m-day at SRTs of 10 days and above with the effluent BOD and TSS concentrations consistently about 5 and 12 mg/l, respectively. However, a rapid breakthrough resulting in only 65% removal efficiency of phenolics at loads of 800 kg phenol/m-day and 600 kg cresol/m-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 loading 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.

Applied sciences

Chemical engineering

Civil engineering

Civil engineering

Sanitation

Sanitation

I. M. Al-Harazin

Electronic name

p

[Thesis]

276903

a

Y