Development of a membrane respirometer

The respirometric technique relies upon reoxygenation of a wastewater sample through a quality controlled polyethylene membrane. The fluid sample is surrounded by a low density polyethylene membrane permeable to oxygen and the sample is stirred in the respirometer. In studies the DO saturation conce...

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Published in:Water research (Oxford) 1997, Vol.31 (1), p.23-32
Main Authors: Garg, R.P., Mathur, R.P.
Format: Article
Language:English
Subjects:
Analysis methods
Applied sciences
DO profile
Exact sciences and technology
membrane
membrane respirometer
Natural water pollution
oxygen uptake
Pollution
respirometer
Water treatment and pollution
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description The respirometric technique relies upon reoxygenation of a wastewater sample through a quality controlled polyethylene membrane. The fluid sample is surrounded by a low density polyethylene membrane permeable to oxygen and the sample is stirred in the respirometer. In studies the DO saturation concentration of the sample in the respirometer was experimentally determined. The respirometer was initially standardized and the rate of oxygen transfer was estimated. The experimental data was fitted to Fick's linear law of diffusion, using a quality controlled polyethylene membrane, the rate of oxygen transfer was found to be reproducible. In oxygen uptake studies, DO vs time recorder plots were obtained. The course of oxygen uptake is depicted and a complete fingerprint of the course of oxidation of the organic contents in the wastewater may be obtained.
doi_str_mv 10.1016/S0043-1354(96)00214-X
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source ScienceDirect Journals
subjects Analysis methods
Applied sciences
DO profile
Exact sciences and technology
membrane
membrane respirometer
Natural water pollution
oxygen uptake
Pollution
respirometer
Water treatment and pollution
title Development of a membrane respirometer
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