农村分散式污水处理模式系统及应用的研究

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1、AbstractTheanalysisandresearchoncurrentsituationoftheemissionsandtreatmentoftheruralsewageiScarriedout．ItiSputforwardthatruralareasshouldadjustmeasurestolocalconditionstoselecttheappropriatemodeofdecentralizedwastewatertreatment．Consideringgeographicallandform，topography,soiltypeandclimaticconditio

2、nsandotherfactors．afourlevelssixprogramssystemofruraldecentralizedwastewatertreatmentmodeandevaluationmethodwhichiSsuitableforruralregionalcharacteristicsinChinaisestablishedbyusingimprovedanalytichierarchyprocess，inordertohelpruralplacetosolvethesewageproblem．DecentralizedⅥ，astewaterTreatmentPlann

3、ingModeliSconstructedforruraldecentralizedwastewatertreatmentmodeplanningandevaluation，whichbasedonYahhpSO肌are．Itmakesthecomplexcalculationprocessrealizedthedigitizationandfriendlyman．machinevisualization．ThedecentralizedwastewatertreatmentmodeplanningandevaluationofShuangfengshanvillageinJiaoNanis

4、finishedbyusingDⅫ弋譬．Model．GISandD浦飞譬．Modeliscoupledbycreatingaspatialdatabaseandcombiningthespatialdatabaseandrelevantmathematicalmodelthroughprogramming．IthascarriedouttheregionaldecentralizedwastewatertreatmentmodeplanningandevaluationforpartofthevillageareasinJiaoNan．Constructedwetlandwastewater

5、treatmentsystemiSchosetosimulate．analyzeandevaluatein1aboratory．ExperimentalresultsshowthattheremovalrateofCODcr，TPandNH4+一Nincreaseswithincreasinghydraulicretentiontime,alsoincreaseswithincreasingtemperaturebysandstonestreatment．Atanambienttemperatureof15℃．CODcrcanbereducedfrom252mg／Lto52mg／Lfor4d

6、ayshydraulicretentiontime．theremovalrateiS79％．Keep5dayshydraulicretentiontime，TPcanbereducedfrom3．49m∥Lto1．01mg／L，theremovalrateis74％，NH4+Ncanbereducedfrom20．38mg／Lto8．00medL，theremoralrateiS61％．ThesubsequentactivatedcarbonorcoalganguetreatmentcanfurtherreducetheTPto0．15mg／L，removalrateiS85％，reduce

7、theNH4+Nto4．66mg／L，removalrateiS42％．．Onthisbasis，thedemonstrationprojectofJimofifthhighschoolisdesigned，evaluated，established，operatedandmonitored．TheconstructedwetlandwastewatertreatmentsystemiSdeterminedt