A study on reasonable treatment way of sediment sludge in Young San Lake

概要

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As it was usual in most of the artificial lakes, the concentration of the nutritive salts due to the water contamination in Young San Lake has been increasing. It involves the problem of increasing in its Trophic State Index. It is not easy to make a clear decision on the factors for causing this, but the nutritive materials inflowed into the drainage area are the main cause and besides that, the limnological characteristics of the lake and the change of the nutritive material concentration inside the lake can be taken as factors. The influence of the stream velocity on the acceleration of the eutrophication can not be excluded because the water is shallow and the retention time in Young San Lake is longer than other lakes. However, the suggested countermeasures for water quality improvement are mostly for the exterior of the lake and the suggestions for the internal countermeasures for the lake are not the practical method as it is lacked in its practicality such as causing the secondary contamination. Consequently, this study aims to survey the state of the sludge at the bottom of the estuary of the Young San Lake and to suggest the appropriate and effective treatment method.
一般社団法人廃棄物資源循環学会の論文