Studies on the Performance and Counterplan of the Treatment of Yarn Dyeing Wastewater.

概要

論文の詳細を見る
We studied on the performance of the treatment of yarn dyeing wastewater. The soluble COD was removed in average in an amount of about 50% in the coagulationprecipitation process, and further removed in an amount of about 70% of the remaining soluble COD in the activated sludge process.<BR>The monthly data of soluble COD, SS and transparency in raw wastewater and treated wastewater during a year were statistically analyzed in terms of non-exceeding probability, and the result was represented as a logarithmic normal distribution. It was found that the wastewater was efficiently treated with this treatment plant, although the satistical figures showed some scatter.<BR>Moreover, the treatment efficiency of COD in the coagulationprecipitation process was investigated by the synthetic dyeing wastewater. As a result, the surfactant, acetic acid and the like were found to be hardly removed in this process. Therefore, it is made evident that when the wastewater with the components to be hardly removed flows into the treatment plant, it is necessary to perform treatments suitable for wastewater components, including chemical and/or biological treatments.
環境技術学会の論文