Control of wastewater treatment processes to support ecotechnology measures in rivers

污水处理厂（WWTP）的工艺为影响流出物的组成提供了选择。这些选择方案将用于设计废水组成，使接收水中的生态技术条件得到支持。本次调查的基础是确定接收水（项目P2）中的决定性控制参数。水处理工艺将是研究的中心对象。由于工艺用水氨浓度高，污泥浓度高，温度高，可能成为化合物和微生物积累的来源。这个想法是根据河流水质和恢复能力的要求，将污泥处理水反应器中的化合物或微生物添加到污水处理厂的流出物中。调查将集中在以下选择上：(i)污泥处理水硝化后的硝酸盐剂量，（ii）硝化器剂量，因为硝化器高度集中在污泥处理水单元中，以及（iii）积累能够降解污染有机物的特定微生物，按需剂量。最后，将分析出水和河流的温度模式，并考虑出水中热交换器的潜力。

The processes of the wastewater treatment plant (WWTP) open up options to influence the composition of the effluent. These options will be used to design the effluents composition such that the conditions for ecotechnology in the receiving waters are supported. The basis for this investigation is to identify the decisive control parameters in the receiving water (project P2). The process water treatment will be a central object of investigation. Due to high ammonia concentration of the process water, high sludge concentration and high temperature, it can be a source for accumulation of compounds and micro-organisms. The idea is to dose either compounds or micro-organisms from the sludge process water reactor to the effluent of the WWTP, depending on the requirements from river water quality and resilience. The investigations will focus on the options of (i) nitrate dosing after nitrification of sludge process water, (ii) nitrifyers dosing, since nitrifyers are highly concentrated in a sludge process water unit, and (iii) accumulating specific micro-organisms able to degrade polluting organics, to be dosed on demand. Last, temperature patterns of effluent and river will be analysed with regard to the potential of heat exchangers in the effluent.