H. K. Alzaidy Department of Environment, college of science, University of Basrah, Iraq
F. M. Alkhatib Department of Environment, college of science, University of Basrah, Iraq
A.S. Dawood Department of Civil Engineering, college of engineering, University of Basrah, Iraq


In this work, a basil seed was used in the removal of total petroleum hydrocarbons from industrial wastewater in the refinery oil company in Basra governor by coagulation and flocculation utilizing the design of experiments technique with the method of (analyzing screening designs). The experiments' independent variables (pH, dose of the substance used for removal, and time of the experiment). Furthermore, the relationship between the independent variables of the tests and their influence on the elimination process. As previously discussed, the results revealed that the optimum model in this study is the square model, and the maximum removal was 98 percent at PH (3), dose (3 and 1) ml, and time (60 and 30) minutes, and a comparison was made between the experimental design DOE and the multiple linear regression MLR to determine the effectiveness of the system used, which proved its great effectiveness. Where there was a significant convergence between the real and predicted effects of DOE removal, MLR was too far from the real results of DOE removal.


: Flocculation and coagulation, wastewater treatment, Basil seed , TPHs

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[1] Goel, P. K. (2006) Water pollution: causes, effects, and control. New Age International. [2]Elijah, A. A. (2022). A Review of the Petroleum Hydrocarbons Contamination of Soil, Water and Air and the Available Remediation Techniques, Taking into consideration the Sustainable Development Goals. Earthline Journal of Chemical Sciences, 7(1), 97-113. [3] Patel, V. and Shah, K. (2012) ‘Petroleum hydrocarbon pollution and its biodegradation’, Int. J. Chem. Technol. Appl, 2, p. 63. [4] Stogiannidis, E. and Laane, R. (2015) ‘Source characterization of polycyclic aromatic hydrocarbons by using their molecular indices: an overview of possibilities’, Reviews of environmental contamination and toxicology, pp. 49–133. [5] UNEP. (1992). Determination of petroleum hydrocarbon in sediments.Reference methods for marine pollution studies .No.20,75pp. [6] Zhu, X. et al. (2001) ‘Guidelines for the bioremediation of marine shorelines and freshwater wetlands. US Environmental Protection Agency Office of Research and Development, Martin Luther King Drive Cincinnati, OH, 45268. [7] API ( American Petroleum Institute ) (2001). Basic Petroleum datebook. Washington, D.C.Use the "Insert Citation" button to add citations to this document. [8] Al-Khatib, F. M. H. (2008) Determination of the concentration, origin, and distribution of hydrocarbons compounds in water, sediments, and some biota of Hor Al-Howaiza, south of Iraq and their sources. Ph. D. Thesis. The University of Basrah, college of science, biology department. [9] Nwabueze, A. A., Nwabueze, E. O. and Okonkwo, C. N. (2011) ‘Levels of petroleum hydrocarbons and some heavy metals in tissues of Tympanotonus fuscatus periwinkles from Warri River of Niger Delta area of Nigeria’, Journal of Applied Sciences and Environmental Management, 15(1). [10] Divakaran, R. and Pillai, V. N. S. (2001) ‘Flocculation of kaolinite suspensions in water by chitosan’, Water Research, 35(16), pp. 3904–3908. [11] Alalmai, Ali A., and Mohd Aarif. "Importance of Effective Business Communication for Promoting and Developing Hospitality Industry in Saudi Arabia A Case Study of Gizan (Jazan)." (2019). [12] Howe, K. J. et al. (2012) Principles of water treatment. John Wiley \& Sons. [13] Dawood Ammar Salman and Li Yilian 2012 Response Surface Methodology (RSM) for Wastewater Flocculation by a Novel (AlCl 3-PAM) Hybrid Polymer Advanced Materials Research 560–561 529-537 [14] Wantala, K.; Khongkasem, E.; Khlongkarnpanich, N.; Sthiannopkao, S.; Kim, K.W. Optimization of As(V) adsorption on Fe-RH-MCM-41-immobilized GAC using Box-Behnken design: Effects of pH, loadings, and initial concentrations. Appl. Geochem. 2011, 5, 1027–1034. [15] Montgomery, D. C. (2017). Design and analysis of experiments. John Wiley & sons. [15] Ghafari, S.; Aziz, H.A.; Isa, M.H.; Zinatizadeh, A.A. Application of response surface methodology (RSM) to optimize coagulation-flocculation treatment of leachate using poly-aluminum chloride (PAC) and alum. J. Hazard. Mater. 2009, 163, 650–656. [16] Aarif, Mohd. (2018). A STUDY ON THE ROLE OF HEALTHCARE INDUSTRY IN THE PROMOTING OF HEALTH TOURISM IN INDIA. A CASE STUDY OF DELHI-NCR. [17] Sharma, P.; Singh, L.; Dilbaghi, N. Optimization of process variables for decolorization of Disperse Yellow 211 by Bacillus subtilis using Box–Behnken design. J. Hazard. Mater. 2009, 164, 1024–1029.


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