Forestry and Environment Sympoisum 1998, Sri Lanka

Fourth Annual Symposium organized by Department of Forestry and Environment Science, University of Sri Jayewardenapura, Sri Lanka.

Thursday, October 05, 2006


Manisha Gunasekera, Indrika Abeygunawardana and Ajith De Alwis
Department of Chemical Engineering, University of Moratuwa.

Many wastewater treatment plants operating today in various industries have one or more biological treatment component, which could be either aerobic or anaerobic, or a combination of both. The type of biological treatment utilized will vary from one plant to another depending on the nature of the wastewater treated. Industries such as chemical process, pharmaceutical etc. have to pay more attention to their wastewater sent to tile wastewater treatment plant as these wastewaters may contain substances in quantities which can cause harmful effects to the living organisms in the biological treatment system, thus action should be taken to reduce these antimicrobial substances entering the biological treatment component of the wastewater treatment plant to levels to which the biological population is more capable of handling those in the degradation process. An action to manage this type of situation will call for the need for monitoring techniques or quantities.

In this concept paper, online and offline monitoring techniques of such substances and its management concepts are illucidated. In monitoring wastewater file use of tile parameter BOD and the inhibition characteristics of the microorganism were looked at with reference to wastewater from a pharmaceutical manufacturing industry.


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