焦化废水制备的煤泥水煤浆的成浆性

针对焦化废水中污染物浓度高、难以处理的现状,利用蒸氨废水和煤泥制备水煤浆,并与自来水、不同处理阶段的焦化废水制备的煤泥浆进行对比,分析煤泥水煤浆的成浆性。结果表明：蒸氨废水与煤泥制备的水煤浆的稳定性、流变性、发热量均优于自来水,且前者添加剂用量比后者减少0.4个百分点;焦化废水中酚类物质和氨氮对煤泥的成浆性有一定的分散稳定作用;添加剂用量一定时,厌氧池出口水样与煤泥制备的浆体的流变性最优。该研究为焦化废水的回收利用提供了参考。

Slurryability of coalslime water slurry with coking waste water

Aimed at a better treatment of challenging pollutant of high concentration in coking waste water,this paper introduces SCWM prepared by using ammonia wastewater and sludge and offers an analysis of the slurryability of SCWM and comparison with tap water and coking waste water at different stage.The result shows that ammonia wastewater and SCWM have much better stability,rheology and calorific value than tap water and use 0.4 percentage points less additive than tap water.The research also indicates that benzene series and ammonia nitrogen in coking waste water have a definite dispersion and stability impact on slurryability of SCWM,and the application of a certain amount of additive yields a best rheology in the export water of anaerobic tank.This study offers reference for recovery and utilization of coking waste water.