Almasi A, Pirsaheb M, Dargahi A. The Efficiency of Anaerobic Wastewater Stabilization Pond in Removing Phenol from Kermanshah Oil Refinery Wastewater. ijhe 2012; 5 (1) :41-50 URL: http://ijhe.tums.ac.ir/article-1-37-en.html
MicrosoftInternetExplorer4 Background and Objectives: Phenol is one of the
aromatic compounds, which due to its high toxicity and its presence in the
industrial effluents, should be removed and prevented it, to the receiving water resources.
The natural biological plant has been accepted as one of the most feasible,
eco-friendly and cost-effective options for the treatment of pollutants such as
Phenol.
The aim of this study is efficiency evaluation of the anaerobic stabilization
pond performance in removing phenol and other organic compounds from Kermanshah oil refinery wastewater. Materials and Methods: The method of study
was experimental and analytical, a laboratory scale anaerobic stabilization pond,
with dimensions of 1 × 1 × 0/2 m, using fiberglass sheet with a thickness of 6
mm was designed and built up. In this study The hydraulic retention time and
hydraulic loading rate were expected 2 days and 95 liters per day respectively.
Organic loading rate for anaerobic pond was 100 g/m3. After
starting, seeding and biological stability, samples were taken. Initial phenol
concentration was added about of 100 mg/l to pilot input, then the parameters
such as NH3, PO4 and Phenol were measured by Varian
spectrophotometer model UV-120-02 in the wavelength 425, 690, 500 nm
respectively. TCOD, SCOD, TBOD, SBOD, pH
and ORP were measured according to the standard methods of water and
wastewater. Results: The results showed that the removal efficiency of NH3,
PO4, phenol, TCOD, SCOD, TBOD, SBOD in the anaerobic pond were
obtained 91.51%, 64.34%, 89.82% 74.99 % 73.34% 71.75%, 68.9% respectively. Conclusion: The results showed that the ability for phenol and other organic compounds
removal in anaerobic pond using petroleum refinery wastewater is higher than
the other systems which are expensive and complex.