Use of Slow Sand Filtration to Complement Conventional Sewage Treatment Methods During Dry and Wet Seasons
Chebor Joel,
Lizzy A. Mwamburi,
Ezekiel K. Kiprop,
Becky N. Aloo
Issue:
Volume 2, Issue 4, August 2016
Pages:
18-23
Received:
16 August 2016
Accepted:
12 October 2016
Published:
8 November 2016
Abstract: Conventional sewage treatment methods mostly do not treat wastewater adequately hence posing a huge problem to the survival of the aquatic life when released to the waterway. The objectives of the study were to evaluate the effect of seasonal variations on performance of both conventional sewage treatment and laboratory based 0.1 mm sand filter and to further improve the quality of the effluent from the treatment plant by subjecting the effluent to sand filtration for further treatment. Effluent from conventional sewage treatment plant was introduced into the filter. Pour plate method was used to determine total coliforms, BOD5 technique for Biological Oxygen Demand, COD digestion method for Chemical Oxygen Demand and gravimetric method for Total Suspended Solids. The parameters in this study were significantly (< 0.05) higher in the final effluent than in the filtrate during the two seasons. In addition, the parameters in the final effluent were significantly (< 0.05) lower during wet season compared to dry season. The two methods of wastewater treatment were efficient in treating the waste however, the conventional treatment plant was more efficient during wet season than dry season.
Abstract: Conventional sewage treatment methods mostly do not treat wastewater adequately hence posing a huge problem to the survival of the aquatic life when released to the waterway. The objectives of the study were to evaluate the effect of seasonal variations on performance of both conventional sewage treatment and laboratory based 0.1 mm sand filter and...
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