一种利用活性污泥研究有机微量污染物生物降解动力学的新方法。

A new method to study biodegradation kinetics of organic trace pollutants by activated sludge.

作者信息

Temmink Hardy, Klapwijk Bram

机构信息

Sub-department of Environmental Technology, Wageningen Agricultural University, Bomenweg 2, P.O. Box 8129/6700 EV, Wageningen, The Netherlands.

出版信息

Chemosphere. 2003 Jul;52(1):221-9. doi: 10.1016/S0045-6535(03)00291-1.

DOI:10.1016/S0045-6535(03)00291-1

PMID:12729705

Abstract

A reliable prediction of the behaviour of organic trace compounds in activated sludge plants requires an accurate input of the biodegradation kinetics. Often these kinetics are extrapolated from the results of standardised biodegradation tests. However, these tests generally are not designed to yield kinetic information and do not reflect the conditions in activated sludge plants. To overcome these problems a new test method was developed which is referred to as a 'by-pass' test. The test methodology is explained and examples are given for three compounds: the C(12)-homologue of linear alkylbenzene sulfonate, nitrilotriacetic acid and toluene. More experience with the test is required, particularly with respect to selection of the proper test settings, which are compound related. The test is a suitable tool in a research environment, for example to investigate the effect of plant operational parameters on the biodegradation kinetics.

摘要

要可靠地预测活性污泥处理厂中有机微量化合物的行为，需要准确输入生物降解动力学数据。这些动力学数据通常是从标准化生物降解试验的结果推断而来的。然而，这些试验一般并非设计用于获取动力学信息，也不能反映活性污泥处理厂的实际情况。为克服这些问题，开发了一种新的试验方法，即“旁路”试验。文中解释了该试验方法，并给出了三种化合物的示例：直链烷基苯磺酸盐的C(12)同系物、次氮基三乙酸和甲苯。还需要积累更多关于该试验的经验，尤其是在选择与化合物相关的合适试验条件方面。该试验是研究环境中的一种合适工具，例如用于研究工厂运行参数对生物降解动力学的影响。