Helminth Ova Control in Wastewater and Sludge for Agricultural Reuse
نویسنده
چکیده
S WATER AND HEALTH – Vol. II-Helminth ova control in wastewater and sludge for agriculture reuse-B.
منابع مشابه
Application of Helminth ova infection dose curve to estimate the risks associated with biosolid application on soil.
Helminth ova (HO) are the main biological concern when reusing sludge for agricultural production. Worldwide sludge regulations consider a permissible range of 0.25-1 HO/gTS. Such limits are unaffordable to most developing countries, due to high helminth ova content in sludge, and the lack of viable technology to inactivate them as needed. The quantitative microbial risk assessment (QMRA) is a ...
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This paper presents the microbial risks associated with the reuse of Ecosan sludge in agriculture. Sludge from KwaZulu Natal Province in South Africa with a helminth ova content of 30 HO/g TS, faecal coliforms of 10(6) CFU/g TS, faecal streptococci of 10(6) CFU/g TS and Salmonella spp. of 10(5) CFU/g TS was used for this purpose. Applying different rates of sludge to spinach and carrots resulte...
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Introduction :By ever-increasing of population, shortage of water resources and the necessity of wastewater treatment, huge volumes of sludge that is a byproduct of wastewater treatment, requires to be disposed in environmentally secure ways. The target of specifying strategic preferences of reuse of sludge has been to find the correct way of disposal or beneficial use of sludge. Material and ...
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Wastewater treatment with stabilisation system ponds produce sludge which requires to be desludged after a certain time of accumulation. In developing countries, the reuse of sludge constitutes a large practice which constitutes a health risk that must be taken into account for a sustainable reuse strategic. One such risk is the dissemination of helminthiases. The aim of this study was to evalu...
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The risk of human hookworm infections from land application of wastewater matrices could be high in regions with high hookworm prevalence. A rapid, sensitive and specific hookworm detection method from wastewater matrices is required in order to assess human health risks. Currently available methods used to identify hookworm ova to the species level are time consuming and lack accuracy. In this...
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