Determination of water-soluble synthetic polymers in waste and surface waters

废水和地表水中水溶性合成聚合物的测定

• 批准号: 422212533
• 负责人: Professor Dr. Jan Schwarzbauer
• 金额: --
• 依托单位: Lehrstuhl für Organische Biogeochemie in Geo-Systemen (OBG)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/422212533?language=en
• 关键词: Determination; water; soluble; synthetic; polymers

Synthetic polymers as environmental contaminants received a very high attention in the past years. The scientific efforts focused so far dominantly on the occurrence of macro- and microplastic particles in the aquatic environment. However, water soluble or dissolved polymers have been neglected so far, although they are produced, used and consequently discharged in high quantities. Additionally, they are known to be stable under environmental conditions and, consequently, an emission towards surface water systems by sewage effluents has to be assumed.Analytical approaches currently developed for plastics are transferable only to a very low extent to water-soluble polymers. Hence, this project will focus on the development of an appropriate analytical approach based on pyrolysis methods for quantifying dissolved polymers in sewage and surface water. The chemical properties of dissolved synthetic polymers as well as the low environmental concentration levels are hereby the main challenges. In a second part of the project, influents and effluents of representative waste water treatment plants as well as samples from receiving river systems will be analyzed quantitatively by applying the developed analytical procedure. The obtained results will be a first glance on the overall discharge of water-soluble polymers into river systems, i.e. an estimation of the pollution dimension.

合成聚合物作为环境污染物近年来受到了高度重视。到目前为止，科学工作主要集中在水生环境中宏观和微观塑料颗粒的出现。然而，水溶性或溶解的聚合物迄今为止一直被忽视，尽管它们被大量生产、使用并因此被排放。此外，已知它们在环境条件下是稳定的，因此，必须假设污水排放到地表水系统中。目前开发的塑料分析方法仅在很低程度上可转移到水溶性聚合物。因此，该项目将侧重于开发一种基于热解方法的适当分析方法，用于量化污水和地表水中的溶解聚合物。溶解的合成聚合物的化学性质以及低环境浓度水平是主要挑战。在该项目的第二部分，代表性的废水处理厂的流入物和流出物以及来自接收河流系统的样品将通过应用开发的分析程序进行定量分析。所获得的结果将是对水溶性聚合物进入河流系统的总体排放的初步了解，即对污染程度的估计。