What is the biggest challenge in treating coking wastewater at present?
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May I ask the experts, what is the biggest challenge in the treatment of coking wastewater at present? {:3_46:}
Reasons for the difficulty in treating coking wastewater: 1. High tar content that is difficult to remove; 2. High levels of volatile phenols; 3. High levels of sulfides; 4. High levels of cyanides