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Cyclops of zooplankton threatens the drinking-water security because of the massive propagation in the polluted water resource and the ineffective treatment by conventional purification technology. The inactivation effects on Cyclops in the raw water of the pre-oxidants, such as chloramines, chlorine, potassium permanganate composite (PPC) and ozone, were discussed. And the synergic removal effects...
Ultrafiltration membrane (UF) was employed in water treatment for raw water of Yangtze River and water supply. The results showed that the UF filtration system is not suitable to treat raw water in Zhenjiang segment of Yangtze River without any pre-treatment. Whether the quality of raw water is good and not, it is very important to select suitable backwash period during filtration of membrane system...
This study has been conducted, to estimate the distribution of Giardia and Cryptosporidium in German water supplies and the removal efficiency of surface water treatment plants for Giardia and Cryptosporidium by conventional treatment. Water samples from six surface water treatment plants in different parts of Germany were simoultaneously examined for Giardia and Cryptosporidium. Investigations...
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