毕业设计-高硫煤矸石用于废水处理研究

洛阳理工学院毕业设计（论文）

I毕业设计（论文）题目摘要高硫煤矸石以粘土岩为主，呈结核状，化学分析其全硫含量达32.12%，同时利用煤矸石中碳、硅、铁、钙、镁等共存的化学特性，以适当的工艺对其进行改性，可制备出吸附性能优良的吸附材料，用于废水处理。在处理中，废水的PH值、反应时间、粒度、加入量、温度和搅拌等因素对总铬、总镍、总汞的去除率影响较大。在吸附作用的基础上，高硫煤矸石通过加入不同配比的还原性材料，如铁粉、硫酸亚铁溶液等，进行改性处理实验。结果表明高硫煤矸石与还原铁粉的比例为100：1O时，加热温度为200。c时，对镍的去除率明显提高；铬初始质量浓度为100rn时，Q(Ⅵ)与煤矸石比值为5mg／3g，废水pH值控制在10，吸附接触时间为4h，废水处理效果最佳，铬去除率可达90％以上。关键词：高硫煤矸石，吸附材料，含铬、镍、汞废水，还原性成分，去除率研究了活化温度、破碎粒度、反应温度、pH值、酸性硅溶胶的稳定性以及陈化条件等因素对制取过程的影响确定了制取工艺找出了最佳操作条件。洛阳理工学院毕业设计（论文）

II英文题目ABSTRACT【从这里键入英文摘要内容】Highsulfurcoalgangueisgivenprioritytowithclayrock,nodular,chemicalanalysisofthetotalsulfurcontentof32.12%,andintheuseofcoalganguecarbon,silicon,iron,calcium,magnesiumandchemicalcharacteristicsofcoexistence,withproperprocessonthemodification,preparationoftheexcellentperformanceofabsorbingandadsorptionmaterial,usedinwastewatertreatment.Intreatment,wastewaterPHvalue,reactiontime,particlesize,additionamount,temperatureandstirringontheremovalrateoftotalchromium,nickel,totalmercury.Onthebasisofadsorption,highsulfurcoalganguebyaddingdifferentratioofreducingmaterials,suchasironpowder,suchasferroussulfatesolution,modificationexperiments.Resultsshowthathighsulfurcoalgangueandtheproportionofreducedironpowderfor100:1O,theheatingtemperatureis200.C,theremovalrateofnickelincreasedsignificantly;Chromiuminitialmassconcentrationfor100rn,Q(Ⅵ)andcoalgangueratioof5mg/3g,wastewaterpHvaluecontrolin10,adsorptiontimeis4hcontact,wastewatertreatmenteffectisbest,chromiumremovalratecanreachmorethan90%.KEYWORDS:Highsulfurcoalgangue，Theadsorptionmaterial，Wastewatercontainingchromium,nickel,mercury，Reducingcomposition，Removalrate洛阳理工学院毕业设计（论文）

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