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2013 (Vol. 5, Issue: 09)
Article Information:

Evaluation of industrial wastewater pollutants from soap factories and breweries in the Bafoussam city vicinity and contribution to the reduction of this pollution (Western highlands of Cameroon)

C. Gouafo and B.P.K. Yerima
Corresponding Author:  C. Gouafo 

Key words:  correlation coefficient, ecotoxicity, heavy metals, physico-chemical parameters, treatment plants, sensitization meeting,
Vol. 5 , (09): 529-536
Submitted Accepted Published
June 11, 2012 June 20, 2013
Abstract:

The discharges of wastewaters of industries in the Bafoussam city vicinity deteriorate the quality of surface and underground water and soils. The purpose of this study is to determine the level of ecotoxicity in the different industries and ways to fight against pollution. The following physico-chemical parameters were determined: COD, BOD5, OM, TP, Cu, Cd, Zn, Cr, Fe, Al, EC, Turbidity, NH4+ and NO3- from wastewaters from all the two soap factories (SWC and SCS) and one breweries (ASCB) industries in Bafoussam. Statistical analysis, we determined the correlation efficient R and Covariance. R varies from 0.715 to 0.897. These coefficients indicate a positive correlation different from 1, hence, we can not predict the parameters of an industry based on the parameters of the other. Total heavy metals contents range from 118.66 mg /l for SCS; 39.58 mg /l for the SWC and 2.45 mg /l for the ASCB. COD ranges from 122 mg /l to 959 mg /l, the highest value was obtained in the SCS. These results indicate that the SCS is the most polluting industry. To reduce the pollution we recommended that each industry recycle its wastewater and put in place specific treatment plants because pollutants to eliminate vary depending on the industry. The Municipal community also advised to institute sensitization meeting with the promoters of these industries on proper wastewater handling treatment. Penalties for pollution should be proportional to the degree of pollution.
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  Cite this Reference:
C. Gouafo and B.P.K. Yerima, 2013. Evaluation of industrial wastewater pollutants from soap factories and breweries in the Bafoussam city vicinity and contribution to the reduction of this pollution (Western highlands of Cameroon).  Research Journal of Environmental and Earth Sciences, 5(09): 529-536.
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ISSN (Online):  2041-0492
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