The number of wastewater treatment plants (WWTPs) in the Czech Republic is increasing. Wastewater, which was previously disposed of in other ways (e.g. septic tanks, cesspits etc), is now entering the surface water (after treatment at a WWTP). Billions of Czech crowns have been invested in the construction of new WWTPs or reconstruction and intensification of existing ones. This money had been invested to meet discharge standards for individual pollutants. However, the overall level of pollution associated with wastewater discharges has not been assessed. The indicator of grey water footprint was used to assess whether there was an increase in pollution load discharged from WWTPs between 2002 and 2018. Discharged pollution data from 4115 industrial and municipal WWTPs were analysed. The analysis of such a large data set has not been carried out yet and brings new knowledge concerning the effect of WWTP size on the grey water footprint. Overall, the total value of the grey water ...

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污水处理厂规模对灰水足迹的影响—捷克案例研究

捷克共和国的废水处理厂（WWTP）的数量正在增加。以前以其他方式处理过的废水（例如化粪池，污水池等）现在进入地表水（在污水处理厂处理后）。已投资数十亿捷克克朗建设新的污水处理厂或重建和强化现有污水处理厂。这笔钱已用于满足单个污染物的排放标准。但是，尚未评估与废水排放有关的总体污染水平。灰色水足迹指标用于评估2002年至2018年污水处理厂排放的污染负荷是否增加。分析了4115个工业和市政污水处理厂的排放污染数据。尚未对如此大的数据集进行分析，并且带来了有关污水处理厂规模对灰水足迹影响的新知识。总体来说，灰水的总价值...