MODIFICATIONS TO ELECTROLYTIC RESPIROMETER SYSTEMS FOR PRECISE DETERMINATION OF BOD EXERTION KINETICS IN RECEIVING WATERS

被引：6

作者：

HICKEY, CW

NAGELS, JW

机构：

[1] Water Quality Centre, Ministry of Works and Development, Hamilton, New Zealand

来源：

WATER RESEARCH | 1985年 / 19卷 / 04期

关键词：

ORGANIC COMPOUNDS - Electrolytic Analysis - WATER ANALYSIS - Sampling;

D O I：

10.1016/0043-1354(85)90038-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Modifications to an electrolytic respirometric system are described which facilitate precise measurements of BOD progressions for low substrate concentration (BOD//5 less than 20 g m** minus **3) as found in natural waters receiving organic enrichment. Samples may be incubated at any desired temperature or dissolved oxygen concentration with automatic hourly monitoring of the BOD progression. Subsamples may be withdrawn at any time without interference to the measurement. The system is independent of atmospheric temperature and pressure fluctuations and has a detection sensitivity of 0. 05 mg of oxygen. Nomographs are presented to enable the maximum dissolved oxygen deficit, and the 'apparent lag' time to be estimated. Refs.

引用

页码：463 / 470

页数：8

共 18 条

[1]

[Anonymous], 1976, STANDARD METHODS EXA

[2] DETERMINATION OF BIOCHEMICAL OXYGEN DEMAND WITH CONTINUOUS RECORDING OF OXYGEN UPTAKE [J].