SPP 812: Refraktäre organische Säuren in Gewässern

“水生系统中的难降解有机酸”研究项目正在研究天然有机物质（腐殖物质、难降解有机酸）的系统方法学特征以及它们在生态系统中的反应的过程导向研究。对不同来源的土壤和水样品进行了检查。为了获得可比的结果，Frimmel教授周围的小组分离了特殊的参比物质。这些参比物质可供计划的所有参与者用于校准目的。除了自然系统（棕色水，土壤渗透水，地下水），也处理废水和受污染的水进行了检查。这些跨学科的问题被分为不同的类别：-用不同的方法（化学、物理、生物学方法）进行结构表征和分子鉴定-确定生物过程（微生物分解、组成、利用）-研究与无机物和有机物以及与固相的物理化学相互作用，研究结果在两次国际会议上发表（环境中的难降解有机物- ROSE I（1997年）和环境中的难降解有机物- ROSE II（2000年））。1998年出版了Acta Hydrochimica et Hydrobiologica“ROSE”特别版。所有结果的完整介绍将于2001年底在英文书“Refractory organic substances in the environment”（Wiley）中出版。

The research program "Refractory Organic Acids in Aquatic Systems" was investigating on the systematic methodical characterization of natural organic substances (humic substances, refractory organic acids) as well as on the process-oriented investigations with regard to their reactions in ecosystems. Samples of soil and water from different origin were examined. In order to get comparable results, special reference substances have been isolated by the group around Prof. Frimmel. These reference substances could be used by all participants of the program for calibration purposes. Apart from natural systems (brown water, soil seepage water, groundwater), also treated waste water and anthropogenically influenced water was examined. The interdisciplinary questions were treated in different categories:-- Structural characterization and molecular identification with different methods (chemical, physical, biological methods)-- Determination of biological processes (microbial decomposition, composition, utilization)-- Investigations on physical-chemical interactions with anorganic and organic substances and with solid phases.The results were presented at two international conferences (Refractory organic substances in the environment - ROSE I (1997) and Refractory organic substances in the environment - ROSE II (2000)). A special edition of Acta hydrochimica et hydrobiologica "ROSE" was published in 1998. The complete presentation of all results will be published by the end of 2001 in an english book "Refractory organic substances in the environment" (Wiley).