Suitability of Moshi Pumice for Phosphorus Sorption in Constructed Wetlands

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