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The occurrence of parasite ova, cysts and faecal coliforms in urban wastewater and their removal was determined after sewage treatment in gravel bed hydroponic (GBH) constructed wetlands receiving conventionally treated wastewater at Abu Attwa, Ismailia. Samples of raw wastewater and GBH influent and effluents were examined for eggs of intestinal helminths over two months in 1995. All raw wastewater...
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