2023·13工艺与设备141ModernChemicalResearch当代化工研究2023·13工艺与设备141ModernChemicalResearch当代化工研究某渗沥液厂氨吹脱预处理工艺运行现状浅析＊邵俊黄皇秦胜男（上海老港废弃物处置有限公司上海202106）摘要：垃圾填埋场老龄渗滤液具有高氨氮、低碳氮比的特点，在预处理过程中脱除部分氨氮，能有效减少后续处理碳源的使用。本文介绍了氨吹脱预处理工艺处理高氨氮废水的内在机理，并结合实际工程分析了氨脱出效果，结果表明经氨吹脱后，渗滤液中氨氮去除率75%以上，脱除的氨作为碳酸氢铵回收，回收率80%，产品纯度98%，是优质的无机氮肥；氨吹脱项目投产后单线运行可使吨水处理成本降低25%，满负荷运行可使吨水处理成本降低50%。此外，也结合运营过程，分析氨吹脱技术在渗沥液处理工艺中存在的问题，并给出了相应的优化建议。关键词：垃圾渗沥液；氨吹脱；问题；优化中图分类号：X703文献标识码：ADOI：10.20087/j.cnki.1672-8114.2023.13.047AnalysisontheOperatingStatusofAmmoniaStrippingPretreatmentProcessinaLeachateTreatmentPlantShaoJun,HuangHuang,QinShengnan(ShanghaiLaogangWasteDisposalCo.,Ltd.,Shanghai,202106)Abstract：Thematurelandfillleachatehasthecharacteristicsofhighammonianitrogenandlowcarbonnitrogenratio.Duringthepre-treatmentprocess,partoftheammonianitrogenisremoved,whichcaneffectivelyreducetheadditionofcarbonsourcesforsubsequenttreatment.Thisarticleintroducedtheinternalmechanismofammoniastrippingpretreatmentprocessfortreatinghighammonianitrogenwastewater,andanalyzedtheammoniastrippingeffectincombinationwithpracticalprojects.Theresultsshowedthatafterammoniastripping,ammonianitrogenremovalratewasabove75%,andammoniawassubsequentlyrecoveredasammoniumbicarbonate,witharecoveryrateof80%andapurityof98%.Thenwhichammoniumbicarbonatecouldbeusedashigh-qualityinorganicnitrogenfertilizer.Aftertheammoniastrippingprojectwasconducted,thetreatmentcostofpertonleachatecouldreduceby25%and50%withsinglelineoperationandfullloadoperation,respectively.What’smore,thestudydemonstratedtheoperationaleffectivenessandproblemsofammoniastrippingtechnologyinleachatetreatmentprocess.Finally,correspondingoptimizationsuggestionsweregiven.Keywo...
