The aim of the study was to find out whether the climate of the southern Poland allows for removing rainwater from industrial areas by evaporation from roof surfaces. The study covered the premises of a Logistics Centre with an approximate area of 34 hectares, located in the catchment of the Wedonka stream and in the region of water intake for Kraków at the Rudawa river. In the future, the Centre will comprise nine large warehouses. Road traffic associated with the project will cause potential risks for groundwater and surface water of this protected area. Therefore, the Centre’s investor decided to evaporate rainwater from the premises. To establish advisability of this plan, the study team designed and built a unique experimental station consisting of experimental roof, tank for collecting water for the sprinkler system, system for delivering, distributing and discharging water from the roof, measuring tilt tray, automatic meteorological station, and electronic devices for recording measurement data. The research on the experimental station was carried out from April to October in 2011 and 2012 and included continuous measurements of the volume of water supplied to and discharged from the roof. Moreover, the temperature of the roof and water in the tank and a number of important meteorological parameters were measured. The difference between supplied and discharged water, divided by the wetted surface of the roof, helped to determine thickness of the evaporation layer in millimeters. The study confirmed the possibility of removing potentially contaminated rainwater by evaporating it from roof surfaces of the Logistics Centre located near Kraków at an average rate of 5.9 dm3·m–2.d–1. However, due to high seasonal variability of rainfall and air temperature, it is necessary to temporarily collect water in an expansion tank of suitable capacity.
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机译：该研究的目的是找出波兰南部的气候是否允许通过屋顶表面的蒸发来去除工业区的雨水。这项研究涵盖了一个物流中心的场所，该中心位于Wedonka溪流域和Rudawa河的Kraków取水区域，面积约为34公顷。将来，中心将包括九个大型仓库。与该项目有关的道路交通将对该保护区的地下水和地表水造成潜在风险。因此，该中心的投资者决定从处所蒸发掉雨水。为了确定该计划的可行性，研究团队设计并建造了一个独特的实验站，该实验站包括实验顶棚，用于洒水系统的集水箱，用于从顶棚输送，分配和排放水的系统，测量倾斜托盘，自动气象站，以及用于记录测量数据的电子设备。在2011年和2012年的4月至10月对实验站进行了研究，其中包括对进出屋顶的水量进行连续测量。此外，还测量了罐顶和罐中水的温度以及许多重要的气象参数。供水和排水之间的差异除以屋顶的湿润表面，有助于确定蒸发层的厚度（以毫米为单位）。研究证实，可以通过以5.9 dm 3 ·m –2 的平均速率从位于克拉科夫附近的物流中心的屋顶表面蒸发去除潜在污染的雨水的可能性。 d –1 。但是，由于降雨和气温的季节性变化较大，因此有必要将水临时收集在容量合适的膨胀罐中。
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