The impact of cassava mill effluent on the total aerobic bioload and physicochemical properties of the soil
Paper Details
The impact of cassava mill effluent on the total aerobic bioload and physicochemical properties of the soil
Abstract
The impact of cassava mill effluent on total aerobic bioload and physicochemical properties of soil was determined. Soil samples were collected with sterile soil auger and subjected to standard microbiological analysis. The results revealed significant differences (P<0.01) in total aerobic bacterial counts between the impacted samples (2.0×106 ±0.87cfu/g and 4.7×106 ±1.56cfu/g) collected 5 and 50m away from the mill and the control sample (4.7×106±1.56cfu/g) collected 50m before the mill. Samples collected 50m before and after the mill recorded no significant difference in bacterial counts. There was no significant difference in total fungal counts recorded at various distances before and after the mill. The pH values of the impacted samples were acidic, recording 4.81 and 6.31 at 5 and 50m away from the mill, while the control recorded 7.6. Impacted samples also recorded higher hydrogen cyanide contents (12.4 and 9.17) than the control (6.8). The C/N ratios of the impacted samples (9.10 and 6.73) were smaller than the control (14.60). The Effective Cation Exchange Capacity of the samples equally followed the same trend. Cassava mill effluent has therefore impacted negatively on the microbial counts and physicochemical properties of the soil.
Aderiye BI, Laleye SA. 2003. Relevance of Fermented Food Product in Southwest Nigeria. Plant Foods Hum. Nutria 58, 1-6.
Adewoye SO, Fawole OO, Owolabi OO, Omotosho IS. 2005. Toxicity of Cassava Wastewater Effluents to African Cat Fish. Ethiopian Journal of Science 28(2), 180-194.
Agbenin JO. 1995. Laboratory Manual for Soil and Plant Analysis (Selected Methods and Data Analysis). Faculty of Agriculture, Institute of Agricultural Research, A.B.U. Zaria. 7-71.
Akani NP, Nmelo SA, Ihemanadu IN. 2006. Effect of Cassava Processing Effluents on the Microbial Population and Physicochemical Properties of Loamy Soil in Nigeria. 10th Annual Conference of Nigerian Society for Microbiology, Nasarawa State University, Keffi, 10-14th October, 2006.
Akpor OB, Igbinosa OE, Igbinosa OO. 2007. Studies on the Effect of Petroleum Hydrocarbon on the Microbial and Physico- Chemical Characteristics of Soil. African Journal of Biotechnology 6(16), 1939-1943.
AOAC .1984. Official Methods of Analysis. 14th ed. Association of Official Analytical Chemists, Washington D.C.
Brady NC, Weil RR. 1990. The Nature and Properties of Soil. 12th edn. Prentice- Hall Inc. p363.
Bremner JM, Mulvaney CS. 1982. Total Nitrogen In: C.A. Black (ed.). Methods of Soil Analysis. Part 2, Agronomy 9. American Society of Agronomy Inc. Madison, Wisconsin: p. 1149-1178.
Bouyoucous CJ. 1951. A Recalibration of the Hydrometer Mechanical Analysis of Soil. Agron. J. 43:434-438.
Clark FE. 1965. Agar-Plate Method for Total Microbial Count. In: C. A. Black (ed.). Methods of Soil Analysis. Part 2, Agronomy 9. American Society of Agronomy Inc. Madison, Wisconsin: p. 1160-1466.
Cock JH. 1985. Cassava Plant and its Importance in Cassava: New Potential for a Neglected Crop. West View Press, London. P 1.
Ehiagbonare JE, Enabulele SA, Babatunde BB, Adjarhore R. 2009. Effect of Cassava Effluent on Okada Denizens. Scientific Research and Essay. 4(4): 310-313
FAO, 2004. Cassava Industrial Revolution in Nigeria. Codex Alimentarius Commission XII, Supplementary 4, Rome.
Fawole MO, Oso BA. 2000. Laboratory Manual of Microbiology. 2nd ed. Spectrum Books Ltd. Ibadan. 1-115.
International Institute of Tropical Agriculture (IITA). 1979. Selected Methods for Soil and Plant Analysis, Manual Series. IITA. Ibadan (1), 4-12.
International Institute of Tropical Agriculture (IITA). 1985. NRC IRI Briefs on Cassava. Nigeria.
Jungerius PD, Levellt TW. 1964. Clay Mineralogy of Soils Over Sedimentary Rocks in Eastern Nigeria. Soil Sci. 97(2), 89-95.
Karin N. 2002. Impact of Organic Waste on the Structure and Function of Soil Bacterial Communities. Journal of Soil Sciences 98, 371.
Nattipong K, Alissara K. 2006. Effects of Cassava Pulp and Swine Manure Compost on Growing Plants in Greenhouse. J. Water Environ. Technol. 4(1): 9-32.
National Root Crop Research Institute. 2006. Annual Report: Microbiological and Physicochemical Studies of Soil Contaminated with Cassava Processing Effluents at Umudike, Nigeria, 16-19.
Nwabueze TU, Odunsi FO. 2007. Optimization of Process Conditions from Cassava (Mannihot esculanta) Lafan Production. African Journal of Biotechnology. 6(5):603-611.
Nwaugo VO, Onyeagba RA, Chima GN, Umeham SN. 2008a. Effects of Cassava Effluents on Physicochemical Parameters and Microbial Flora of Soil. International Journal of Biotechnology and Applied Sciences 3(1), 346-353.
Nwaugo VO, Etok CA, Chima GN, Ogbonna CE. 2008b. Impact of Cassava Mill Effluent (CME) on Soil Physicochemical and Microbial Community Structure and Functions. Nigerian Journal of Microbiology 22(1), 1681-1688.
Ogboghodo IA, Oluwafemi AP, Ekeh SM. 2006. Effects of Polluting Soil with Cassava Effluent on the Bacterial and Fungal Populations of a Soil Cultivated with Maize. Environmental Monitoring and Assessment 116, 419-425.
Okafor JO. 2008. Impact of Effluents from Garri Processing Industries on the Environment in Bida, Niger State of Nigeria. Journal of Engineering and Applied Sciences 3(6): 487-490.
Okwu DE, Nwosu PO. 1999. Effects of Cassava Effluents on Soils Around Cassava Processing Mills in Abia State, Nigeria. NRCRI, Umudike. 1-9.
Olsen SR, Sommers LE. 1982. Phosphorus In: A.L. Page, R. H. Miller and D. R. Keeney (eds). Methods of Soil Analysis, Part 2, Chemical and Microbiological Properties, Wisconsin: p. 403-430.
Rangaswami G, Bagyaraj DJ. 1993. Agricultural Microbiology. 2nd edn. Prentice Hall, India. 1-214.
Shanhinrokhsar P, Vahed HS, Haghuadl A. 2008. Evaluation of Paddy Soils Properties on Urease Enzymes Activity. Conference on International Research on Food Security, National Resource Management and Rural Development, University of Holeheim, October 7-9, 2008.
Udo EJ, Ogunwale JA. 1986. Laboratory Manual for the Analysis of Soil, Plant, and Water Samples. University Press, Ibadan, Nigeria. 21-25.
Utu-Baku AB, Mbuk MI, Umoh IB, Abara AE. 1995. A Novel Approach in the Lipidation of Edible Cassava Garri. Global Journal of Pure and Applied Sciences 1(2), 19-28.
Uzoije AP, Egwuonwu N, Onunkwo AA. 2011. Distribution of Cyanide in a Cassava –Mill-Effluent Polluted Eutric Tropofluvent Soils of Ohaji Area, South-Eastern Nigeria. Journal of Soil Science and Environmental Management 2(2), 49-57.
Walkey A, Black P. 1945. A Critical Examination of a Rapid Method of Determining Organic Carbon in Soils. Soil Science 251-265.
RN Okechi1, EI Chukwura, CO Azuwike, CE Ihejirika, 2011. The impact of cassava mill effluent on the total aerobic bioload and physicochemical properties of the soil. J. Biodiv. Environ. Sci., 1(6), 112-117.
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