Coking wastewater
Coking wastewater: 1. Source: Coking wastewater is industrial wastewater containing volatile phenols, polycyclic aromatic hydrocarbons, oxygen, sulfur, nitrogen and other heterocyclic compounds produced during high-temperature carbonization, purification and by-product recovery of coking and coal gas. It is a kind of high CODcr, high phenolic value, high An industrial organic wastewater that contains ammonia nitrogen and …