Consortium on Health, Environment, Education and Research
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“Using food wastes as feeds for fish culture” (sponsored by the by the Innovation Technology Commission) is derived from the previous project (supported by the Environment Conservation Fund). The major aim is to formulate different fish feed pellets from suitable food wastes, catering for the needs of different fish species, with different feed modes and nutritional requirements. Supplements such as enzymes, and Chinese medicinal herbs are added into the feed pellets, in order to enhance feed conversion ratio, and fish immunity. It is hoped that the project could contribute to promotion of waste recycling, reactivating local fishery industry, and easing disposal pressure of food wastes.
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“Ecotoxicology of sewage effluent discharged from two sewage treatment plants to Mai Po RAMSAR site” (commissioned by the Drainage Services Department). Sewage may contain high concentrations of persistent substances (PTS), potentially harmful to local and migratory birds in this important site for biological conservation. Therefore, it is important to analyze all the PTS in the sewage effluent, which may affect the habits and food items for birds. A battery of bioassay tests will also be used to assess the integrated toxicity of all the PTS discharging into the area.
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“Constructed wetland for sewage treatment and biological conservation” (commissioned by the Drainage Services Department). An artificial wetland has been built along a portion of Ping Yuen River (with water discharging into Shenzhen River) at Tong Fong Village, near Sha Tau Kok, North-East New Territories. By constructing this artificial wetland consisting of a variety of wetland plants, it is hoped to remove contaminants from the sewage overflow from the village, and provide a wide range of ecological habits for attracting different living organisms, such as birds, dragon flies, butterflies, frogs and fish.
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