Challenges in Coking Acidic Wastewater Treatment and Their Environmental and Operational Impacts

Coking acidic wastewater treatment presents numerous challenges.

Firstly, it contains high levels of coke powder with a small particle size distribution, along with a high oil content. The oil droplets are small and severely emulsified. The large amounts of emulsified oil and suspended solids (coke powder) seriously affect the stripping effect and the quality of liquid ammonia. Imagine, in a stripping tower, these tiny oil droplets and coke particles attach to the internal equipment, obstructing the normal stripping process and causing a decline in liquid ammonia quality, making it unable to meet production demands. Secondly, these substances can easily cause clogging in the stripping tower. Once the clogging becomes severe, it may lead to unplanned shutdowns, which is undoubtedly a disaster for the enterprise, resulting in substantial economic losses.

Furthermore, the composition of coking acidic wastewater is complex, with fluctuating concentrations. It contains substances like sulfides and ammonia nitrogen, which emit irritating odors, severely affecting the environment and the health of workers. When employees work in an environment filled with pungent odors, their work efficiency is not only impacted, but their health is also at risk. Additionally, if the wastewater is not treated to the required standard before being discharged to the treatment plant, it will place a huge environmental pressure on the company, potentially leading to significant fines and stringent regulatory scrutiny.