废弃物与沥浸污泥的好氧堆肥效果及效益分析_魏宏_李妍_高贤彪_韩德周_吴迪_惠杨
- 11408945
-
1 次阅读
-
0 次下载
-
2020-02-02 18:59:38
文档简介:
书废弃物与沥浸污泥的好氧堆肥效果及效益分析魏宏1,李妍2,高贤彪2,韩德周1,吴迪2,惠杨杨3,马莹1(1.天津市环境建设投资有限公司,天津300191;2.天津市农业资源与环境研究所,天津300192;3.天津城市基础设施建设投资集团有限公司,天津300040)摘要:以沥浸污泥为原料,开展了污泥堆肥配方研究;同时结合某污水厂污泥处理案例,比较分析了不同污泥处理工艺的成本与效益,以探讨沥浸污泥堆肥的可行性。结果表明:根据来源广泛、发酵效果较好、适宜本地的原则,沥浸污泥堆肥原料的最佳配方为污泥∶蘑菇渣=4∶1(质量比),其次是污泥∶鸡粪∶草炭=2∶1∶1(质量比);沥浸污泥静态好氧堆肥的产品为有机肥,其各项指标均可满足国家相关标准的要求;采用“生物沥浸干化+条垛静态好氧发酵”工艺处理某污水厂污泥,与现有的“污泥脱水+槽式好氧发酵”工艺相比,可使占地减少一半,并且投资少、处理成本低、产值高、处理过程对环境友好,应用前景广阔。关键词:污泥;生物沥浸;堆肥;废弃物;成本;效益中图分类号:X705文献标识码:C文章编号:1000-4602(2014)09-0134-04基金项目:天津城投集团科研项目(TJCT2012-11)EfficiencyandCost-benefitAnalysisofAerobicCompostingUsingDifferentWastesandBioleachingSludgeWEIHong1,LIYan2,GAOXian-biao2,HANDe-zhou1,WUDi2,HUIYang-yang3,MAYing1(1.TianjinEnvironmentalDevelopmentInvestmentCo.Ltd.,Tianjin300191,China;2.TianjinInstituteofAgriculturalResourcesandEnvironmentalScience,Tianjin300192,China;3.TianjinInfrastructureInvestmentGroupCo.Ltd.,Tianjin300040,China)Abstract:Thesludgecompostformulawasstudiedusingbioleachingsludgeasrawmaterial.Com-binedwiththecaseofsludgetreatmentatasewagetreatmentplant,thecostsandbenefitsofdifferentsludgetreatmentprocesseswerecomparedandanalyzedtoexplorethefeasibilityofbioleachingsludgecompost.Theresultsshowedthataccordingtowidevarietyofsources,goodfermentationandlocallyap-propriateprinciples,thebestformulaforbioleachingsludgewassludge∶mushroomresidue=4∶1(massratio),followedbysludge∶manure∶peat=2∶1∶1(massratio).Theproductofstaticaerobiccom-postingofbioleachingsludgewasorganicfertilizer.Allitsindicatorscouldmeettherequirementsoftherelevantnationalstandards.Comparedwiththe“sludgedewatering+troughaerobicfermentation”tech-nology,the“dryingbioleaching+staticwindrowaerobicfermentation”processfortreatmentofsewagesludgecouldreducethearearequirementbyhalf,lowertheinvestmentandtreatmentcost,increasepro-ductionvalueandbeenvironmentallyfriendly.·431·第30卷第9期2014年5月中国给水排水CHINAWATER&WASTEWATERVol.30No.9May2014Keywords:sludge;bioleaching;compost;waste;cost;benefit生物沥浸技术可大幅降低污泥中的重金属含量及含水率,但处理后的污泥仍存在不稳定性、恶臭、有毒有害等问题。污泥处置方式有很多,其中污泥堆
评论
发表评论