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Journal of Applied Sciences and Environmental Management

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Suitability of Moshi Pumice for Phosphorus Sorption in Constructed Wetlands

AS Mahenge

Abstract


The study of Moshi Pumice’s phosphorus sorption behaviours and  properties was carried out in laboratory scale where by 1-2 mm, 2-4 mm and 4-8 mm grains were tested using batch experiments. The results show that Moshi Pumice has high phosphorus sorption capacity. The sorption capacity for the Moshi Pumice was 2.5 g P/kg. For 1-2mm and 4-8mm grains; about 50% of phosphorus sorption in Moshi Pumice occurs in the first 18 and 20 hours, respectively. Compared to 4-8mm and 2-4mm grains, temperature didn’t significantly influence phosphorus sorption on 1-2mm grain. Moshi Pumice has high potential for phosphorus removal from wastewaters and it can be recommended to be used as a substrate in constructed wetlands to remove phosphorus. © JASEM



http://dx.doi.org/10.4314/jasem.v18i1.19
AJOL African Journals Online