鸟粪石沉淀法处理沼液实验研究_杨明珍

鸟粪石沉淀法处理沼液实验研究_杨明珍污水处理鸟粪石沉淀法处理沼液实验研究＊杨明珍1,2包震宇1,2师晓春1,2汪德生1,2(1.辽宁省环境科学研究院污染防治技术研究所沈阳110031;2.辽宁省流域污染控制重点实验室沈阳110031)摘要以MgCl2·6H2O和KH2PO4·12H2O为沉淀剂,开展了鸟粪石沉淀法处理沼液实验,研究了沉淀剂投加量、反应过程中pH值对沼液中氨氮、总磷去除效果的影响。研究表明,在pH值为9、Mg2+∶PO-34∶NH+4=1.1∶1.05∶1(摩尔比)时,出水中氨氮为45mg/L、总磷为15mg/L,脱氮除磷综合效果最佳。关键词鸟粪石沼液氨氮磷ExperimentalStudyonTreatmentforAnaerobicFermentationSlurrybyStruvitePrecipitationYANGMingzhen1,2BAOZhenyu1,2SHIXiaochun1,2WANGDesheng1,2(1.LiaoningAcademyofEnvironmentalSciencesPollutionControlR&DInstituteShenyang110031)AbstractInthisstudy,anaerobicfermentationslurryhasbeentreatedbystruviteprecipitation,inwhichMgCl2·6H2OandKH2PO4·12H2Oareusedasprecipitatingagents.TheeffectsofthedosageandpHontheremovalofammonianitrogenandphosphorousarestudied.WhenpHis9andMg2+∶PO3-4∶NH+4=1.1∶1.05∶1(mol),ammonianitrogenandphosphorousintheeffluentis45mg/Land15mg/Lrespectivelyandtheeffectisoptimal.KeyWordsstruviteprecipitationanaerobicfermentationslurryammonianitrogenphosphorous0引言近年来,我国的沼气技术有了较快的发展,全国各地陆续大规模地建设大中型沼气工程,产生的沼