海泡石与生物质炭强化厌氧处理养猪废水

中国环境科学2017,37(10)：3764~3772ChinaEnvironmentalScience海泡石与生物质炭强化厌氧处理养猪废水宿程远1,2*,郑鹏2,卢宇翔2,谢莲2,黄纯萍2,黄智2,陈孟林2(1.岩溶生态与环境变化研究广西高校重点实验室,广西桂林541004；2.广西师范大学环境与资源学院,广西桂林541004)摘要：探讨了海泡石与生物质炭投加对于厌氧技术处理养猪废水效能的影响,并通过三维荧光光谱(EEM)与傅里叶红外光谱(FTIR)分析了海泡石与生物质炭对于厌氧污泥溶解性微生物产物(SMP)及胞外聚合物(EPS)组分的影响.结果表明,投加海泡石与生物质炭后,提高了厌氧反应器对COD与氨氮的去除效果,对COD的平均去除率分别提高了10.1%与15.4%,对氨氮的去除率最高分别达到了50.9%和71.5%.对于厌氧污泥SMP而言,投加海泡石后,其FTIR光谱中2930cm-1、1460cm-1处的吸收峰减弱,表明其对养猪废水中大分子有机物的去除效果有一定程度增强;而投加生物质炭后,其EEM光谱中类富里酸(Ex/Em=340nm/420nm)的吸收峰强度降低,从而提高了厌氧反应器出水水质.对于厌氧污泥EPS而言,通过EEM分析可知,投加生物质炭后厌氧污泥中简单类蛋白(Ex/Em=225nm/340nm)吸收峰、色氨酸类蛋白(Ex/Em=280/340nm)吸收峰强度增大,蛋白含量的提高有利于厌氧污泥的絮凝;同时出现了辅酶F420(Ex/Em=420nm/470nm)的吸收峰,这表明加入生物质炭后,厌氧反应器内产甲烷菌活性更佳,为厌氧反应器对养猪废水的高效处理提供了保障.关键词：养猪废水；厌氧反应器；生物质炭；海泡石；污泥特性中图分类号：X703.1文献标识码：A文章编号：1000-6923(2017)10-3764-09Enhancedefficiencyofananaerobicreactorcontainingsepioliteorbiocharfortreatmentswinewastewater.SUCheng-yuan1,2*,ZHENGPeng2,LUYu-xiang1,XIELian1,HUANGChun-ping1,HUANGZhi2,CHENMeng-lin2(1.KeyLaboratoryofKarstEcologyandEnvironmentChangeofGuangxiDepartmentofEducation,Guilin541004,China；2.SchoolofEnvironmentandResources,GuangxiNormalUniversity,Guilin541004,China).ChinaEnvironmentalScience,2017,37(10)：3764~3772Abstract：Inthisstudy,theenhancedefficiencyofananaerobicreactorcontainingsepioliteandbiocharfortreatmentswinewastewaterwasinvestigated,respectively.Theimpactsofsepioliteandbiocharonthecomponentsofsolublemicrobialproducts(SMP)andextracellularpolymericsubstances(EPS)ofanaerobicsludgewerealsoevaluatedusingexcitation-emissionmatrix(EEM)andfouriertransforminfrared(FTIR)spectra.TheresultsshowedthattheanaerobicreactorcontainingsepioliteorbiocharcouldimprovetheremovalofbothCODandammonianitrogen.Usingsepioliteandbiochar,theaverageremovalrateofCODincreasedby10.1%and15.4%,respectively.Meanwhile,themaximalremovalefficiencyofammonianitrogenreachedto50.9%and71.5%,respectively.WithregardtotheSMPofthesludge,theabsorptionpeaksat2930cm-1,1460cm-1abatedintheFTIRspectra.Itwasindicatedthatsepioliteeffectivelyremovedgreatmol