TFB 31: Entwicklung eines Konzeptes zur Reduzierung der Abwasserentsorgungskosten in einem Werk der Waschmittelproduktion

这个转移中心由一个同名的单一项目组成。在前合作研究中心193“工业废水的生物处理”范围内，研究了从漂洗水中分离表面活性剂的不同方法。基于e4项目中膜法去除表面活性剂的有希望的结果，将技术从模型溶液转移到液体洗涤剂生产中实际漂洗水的处理上。这是通过与我们的工业项目合作伙伴汉高Genthin有限公司的密切合作来实现的。进一步调查的起点是整个工厂特定水和产品流的详细平衡。除了纯表面活性剂外，还必须考虑其他成分，如盐、乙醇、表面活性剂混合物、染料和香水。因此，必须进行进一步的实验，以评估多组分混合物对过滤性能和产品流（渗透液和产品浓缩液）质量的影响，并在必要时调整工艺条件。为了证明该方法的可行性，在汉高工厂进行了中试试验。下面将展示内部工艺水循环利用的潜力，并通过对整个水和废水管理的系统优化来降低废水处理成本。

This transfer centre consists of one single project of the same name.Within the scope of the former collaborative research centre 193 "Biological Treatment of Industrial Wastewater" different methods for the separation of surfactants from rinsing waters have been examined.Based on the promising results of the surfactant removal by membrane processes in the project E 4 the know-how is transferred from model solutions to the treatment of real rinsing waters from the production of liquid detergents. This is to be achieved through a close cooperation with our industrial project partner, the Henkel Genthin GmbH.The starting point for further investigations is a detailed balance of the specific water and product streams of the entire plant. Apart from pure surfactants additional components like salt, ethyl alcohol, surfactant mixtures, dyes and perfumes have to be considered, too. Therefore further experiments have to be performed in order to evaluate the influence of the multi-component mixtures on the filtration performance and the quality of the product streams (permeate and product concentrate) and to adapt the process conditions if necessary. Pilot plant experiments are performed on the Henkel site in order to prove the feasibility.In the following the potential for internal process water recycling will be shown and a reduction of wastewater disposal costs can be achieved by a systematic optimisation of the entire water and wastewater management.