Quality assessment of vegetable oil industry effluents in Port Harcourt, Rivers State, Nigeria

• Autorzy: Verla A. W. , Verla E. N. , Adowei P. , Briggs A. , Horsfall Jnr M.
• Języki publikacji: EN

Abstrakty

EN

Five composite samples of waste water were collected from waste water tank of a vegetable oil refining company and were analyzed for physiochemical characteristics, heavy metal and organic pollutants. Physicochemical determinations were done according to standard methods; heavy metals were determined by use of Atomic Absorption Spectrophotometer method while organic pollutants were determined by Gas chromatography system HP 6890 series. Sulphate was determined by vanadomolybdophosphoric acid method while phosphates and chlorides were determined by argentometric method. Results reveal that effluent pH (4.67 ±0.015), salinity (125 ±4.50 %) and BOD5 (17.83 ±1.70 mg/l) were bellow WHO standard whereas TDS (127.7 ±5.77 mg/l), TSS (563.6 ±3.15 mg/l) and COD (3959 ±3.8 mg/l) were above WHO standards. Heavy metal pollution index (0.31) showed no multi-element contamination arising from effluent. The degree of contamination (1.84) showed that the effluent has a moderate polluting potential. Lower molecular weight PAHs showed a significant difference even though most of the organic compounds in vegetable oil refinery wastewater showed good biodegradability that varied weekly. Therefore there is either no treatment or an in effective treatment of the effluents. This could result to serious environmental problems in the near future.

Słowa kluczowe

EN

physicochemical; wastewater; biodegradability; pollutants; indices

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2014
• Tom: Vol. 14, iss. 2
• Strony: 179--189
• Opis fizyczny: Bibliogr. 28 poz., tab., wz.

Twórcy

autor

Verla A. W.

• Department of Pure and Industrial Chemistry, University of Port Harcourt, Choba, Nigeria

autor

Verla E. N.

• Department of Industrial Chemistry, Madonna University Elele Campus, Rivers State, Nigeria

autor

Adowei P.

• Department of Pure and Industrial Chemistry, University of Port Harcourt, Choba, Nigeria

autor

Briggs A.

• Department of Pure and Industrial Chemistry, University of Port Harcourt, Choba, Nigeria

autor

Horsfall Jnr M.

• Department of Pure and Industrial Chemistry, University of Port Harcourt, Choba, Nigeria

Bibliografia

• [1] A. O. Oladele, African Journal of Environmental Science and Technology 1(2) (2007) 1.
• [2] NESREA. National Environmental Standard and Regulatory Enforcement Agency Federtal Republic of Nigeria Official Gazette. Lagos, 2011.
• [3] A. Krause. Textbook and Manual of Wastewater Technology: Organically contaminated wastewaters from the food processing industry, Vol. 5; Verlag fur Architektur und Technische Wissenschaften, Berlin, 1985; 49-54.
• [4] R. A. Pandey, P. B. Sanyal, N. Chattopadhyay, S. N. Kaul, Resources Conservation and Recycling 37(2) (2003) 101-117.
• [5] O. Osibanjo, Federal Environmental Protection Agency, FEPA Monograph 1996; 35-59.
• [6] S. N. Kulshreshtha, Water Resources Management 12(3) (1998) 167-184.
• [7] N. Manivasaka, Sakthi publication, Kovaipudur coimbatone, 1987, 50.
• [8] K. B. Chipasa, K. K. Chin, K. K. Wong, Water Research 15 (1981) 1087.
• [9] W. C. Seng, J. Amer. Oil Chem. Soc. 57 91980) 926A.
• [10] J. M. Okuo, A. C. Ozioko, J. Chem. Soc. Nig. 26(1) (2001) 60-65.
• [11] USEPA, EPA/600/R 93/089, United States Environmental Protection Agency, 1993.
• [12] APHA, AWWA and WEF. Standard Methods for the Examination of Water and Wastewater. 20th edition, Clesceri, L.S., Greenberg, A.E. and Eaton, A.D. (Editors), APHA, AWWA, WEF, Washington DC. 1998.
• [13] V. D. Heinrich, A. Krause, I Sekoulov, Fat Sci. Technol. 94 (1992) 28.
• [14] P. Becker, D. Koster, M. N. Popov, H. Maaki, Water Research 33 (1999) 653.
• [15] Ademoroti C. M. A. (2006). Standard Methods for Water & Effluents Analysis. 1st Edition. Foludex press limited, Ibadan, Nigeri
• [16] M. J. Boyer, J. Amer. Oil Chem. Soc. 61 (1984) 146, 297.
• [17] P. C. Okoye. V. N. Okolo, F. D. C. Ozoigbo, World Journal of Biotechnology 4 (2003) 678-688.
• [18] G. Choffel, J. Amer. Oil Chem. Soc. 53 (1976) 446.
• [19] M. Waziri, V. O. Ogugbuaja, American Journal of Scientific and Industrial Research 1(1) (2010) 76-80.
• [20] S. C. Eziuzor, G. C. Okpokwasili, Nigerian Journal of Microbiology 23(1) (2009) 1777-1791.
• [21] C. M. A. Ademoroti. Standard methods for water and Effuents Analysis. Ibadan: Foludex Press Ltd. 1996; 44-54.
• [22] V. O. Ogugbuaja, R. Kinjiir, Res. J. Sci. 7(1-2) (2001) 1-6.
• [23] E. R. Rene, M. B. Saidutta, International Journal of Environmental Research 2(2) (2002) 183-188.
• [24] P. Shegunova, K. Terytze, I. Atanassov. Proceeding of International Workshop, Sofia, Bulgaria, 30 September-3 October, 2001; Terytze, K.; Atanassov, I., Eds.; 2001; 202-209.
• [25] B. Škrbić, N. Miljević, J. Environ. Sci. Health A. 37 (2002) 1029-1039.
• [26] B. Škrbić. Faculty of Technology, Novi Sad, Serbia, 2003.
• [27] T. Spitzer, J. Chromatogr. A. 643 (1993) 305-309.
• [28] A. W. Verla, P. J. C. Nwosu, E. N. Verla, Tropical Journal of Biomedical and Allied Science Research 2(1) 137(2008) 140.