Abstract:

This paper introduces the three methods of reducing total cyanide concentration in coke plant wastewater.The test shows that the methods of coke absorption and flocculant dosing to oil removal tank are both effective.Coke absorption method will increase labor intensity,so it is not a good option; while the method of dosing flocculant to oil removal tank with self-pressure blowdown system could not only reduce the total cyanide concentration and also benefit the biochemical treatment process.