Treatment of gas drainage wastewater
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I would like to ask everyone: how is wastewater from gas tank drainage, compression drainage, and advanced desulfurization drainage treated?
It is collected together and sent to a wastewater treatment plant for biochemical treatment.
But this amount isn’t very large, is it delivered directly? Is there any oil removal process for the methanol?
For the production of methanol from coke oven gas, methanol plants generally do not have wastewater treatment facilities; oily wastewater is discharged into oil-containing wastewater tanks and then sent to the wastewater treatment plant at the coking facility for processing. If coal-to-methanol plants are all designed with wastewater treatment workshops.
I’m also producing methanol from coke oven gas; the amount is not large, so it’s not easy to handle
The wastewater generation from the gas holders and the desulfurization units is very low; the main issue lies in the compressed oily wastewater produced at multiple points. Our wastewater tanks are large, and the accumulated wastewater is pumped to the coking unit for treatment.
What about the coking area? Is it the wastewater treatment plant or coke quenching and things like that?
Wastewater treatment workshop: Nowadays, the coking industry does not allow the use of wastewater for quenching coke.
Is it treated together with other wastewater?
I’m not too sure about this; I can’t help you.
Separation of wastewater streams: Different types of wastewater should be treated separately and not mixed together; treatment should be carried out based on each type’s specific characteristics. Reuse of reclaimed water: Air coolers and other devices are used extensively to reduce the amount of circulating cooling water, and a closed-loop system is implemented for this cooling water to prevent a rapid increase in concentration due to evaporation