Question

Based on the cost effectiveness auditing of a pharmaceutical industry, it was found that "the distributed...

Based on the cost effectiveness auditing of a pharmaceutical industry,
it was found that "the distributed effluent treatment arrangement is
more effective than a centralized effluent treatment system for the
management of water use and reuse in the process plant". Justify the
correctness of this finding.

Engineering   Chemical-Engineering   
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Answer #1

The problem with centralized treatment is that combining waste streams that require different treatment techniques leads to a cost of treating the mixed streams that is likely to be more expensive than the individual treatment of the individual separate streams. This is mostly the case in the pharmaceutical industry where a variety of chemicals are used to create products and thus create a multitude of waste products. This situation results from the fact that the capital cost of most waste treatment processes is related to the total flow rate of wastewater. Also, operating costs for treatment usually increase with decreasing concentration for a given mass load of contaminant to be treated. so the finding is justified.

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