Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed bya)chlorinationb)treating in biological oxygen pondc)chemical coagulationd)none of theseCorrect answer is option 'B'. Can you explain this answer?

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Answer

Phenolic water is a byproduct of the coke production process in coke ovens. It is formed when coal is heated in the absence of air to produce coke. During this process, volatile compounds are released from the coal, including phenols, which dissolve in water to form phenolic water.

Phenolic water is a toxic and hazardous substance that contains a high concentration of phenols, which are harmful to human health and the environment. It can cause skin and eye irritation, respiratory problems, and even cancer if ingested or inhaled.

The treatment of phenolic water is critical to prevent its release into the environment. It is typically treated in wastewater treatment plants using a combination of physical, chemical, and biological processes to remove phenols and other contaminants.

Many coke plants have implemented closed-loop systems to minimize the production of phenolic water. In these systems, the water is treated and recycled back into the coke production process, reducing the amount of wastewater generated and minimizing the environmental impact.

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