利用人工湿地治理太湖流域小城镇生活污水可行(4)

pressureonpaddywatersurfaceandwindspeedbeyondpaddywatersurfacethroughagreatdealofdataanalysis.Themajoraimoftheresearchistoreduceamountofammonialostthroughpaddywatersurfaceandstudytheeffectofricepaddywatersurfacemolecularmembraneonincreasingutilizationrateofnitrogenfertilizerandriceyield.Theresultsindicatethatricepaddywatersurfacemolecularmembranecangreatlyreducethevolatilizationrateofammoniaandthenitrogenlost.Thetreatmentofapplyingricepaddywatersurfacemolecularmembraneafteraddingureaorammoniumcarbonateresultsinmoreeffectiveears,spikenumbersandthousandkernelweightandtotalyieldthanthetreatmentofnon-applyingmolecularmembrane.Theeffectofyieldincrementbyapplyingmembranecanbestrengthenedwiththeincrementoffertilizerapplication.Theeffectofapplyingammoniumcarbonateisbetterthanthatofapplyingurea.Therangeofyieldincrementintreatmentofapplyingmembraneis3—6.8%andtheVCRis8:1.Theutilizationrateofnitrogenfertilizercanbeincreasedby6.5—11.6%comparingwiththecontroltreatment(non-applymembrane)throughtheanalysisofplantsnitrogencontentintrialplotsbyusinghemethodofvaluedifference.

Keywords:rice,paddywatersurfacemolecularmembrane,ammoniumcarbonate,rate

TheSolubleFluorideinSoilandItsAnalyticalMethod.JingYinunet(Ag-ProtectionInstituteofMOA,300191,Tianjin),Agro-environmental,1998,(5)TheChangeofthesolublefluoridesinsoilismoreobvioustsoilwhenpollutedfromoutside.Ananalyticalmethodforsolublefluoridesinsoilisevaluatedafterterres2trialheatutilizationbyusingsolublefluoridesasKeywords:fluorides,soil,analyticalmetAnalysisofBacteriaintheProcessofgandwatertreatmentwithDio-membrane.ZhangKeqiangetal.(KeyLabofAgro-p,Agro-environmentProtectionInstituteofMOA.Tianjin300191),Agro-environ17(5):222—224

ThesamptanarobictankofXinhuiDefawastewatertreatmentfactoryinGuangdongProvincewereanaly,belongstofourgenerabacteriaofbacillusandpseudomonas,wereseperatedoutandtookarateofKeywords:printing-dyeingwastewater,bacteria

TheMeasurementofα-NaphthylAceticAcidinPENDUOSHOU.WangJijunetal.(Agro-environmentPro2tectionInstituteofMOA,300191,Tianjin),Agro-environmentalProtection,1998,17(5):227—228

Thisarticleintroducesthemeasurementofα-naphthylaceticacidinPENDUOSHOU.TheSamplingsareex2tractedwithbenzene,evaporatedbenzenethroughboiling,anddissolvedinalcoholwithneutralizerliquidof0.1mol/LNaOH.Therecoveriesforα-naphthylaceticacidof15.51mg/g—18.54mg/gare98.92—101.32%withtheaveragecoefficientof10.3%.

Keywords:PENDUOSHOU,α-naphthylacid,benzene,neutralizer

TheInvestigationandTreatmentofWaterPollutionCases.HuangYubinetal.(HebeiAgro-environmentalProtectionandMonitoringStation,Shijiazhuang050021),Agro-environmentalProtection,1998,17(5):229—231

Thepaperdescribesindetailsthefollowing8parts:theinvestigationandtreatmentproceduresofwaterbodypollutioncases,waterpollutiondistinction,pollutionsymptomdiagnosis,pollutionsourceinvestigation,pollutionanalysis,directpecuniarylossestimation,technicalarbitrationandpollutiontreatments.Thispaperprovidesthenecessaryreferencestothedeterminationandarbitrationofthewaterpollutioncasesanddisputesforenvironmentalprotectionandagriculturalauthorities.

Keyword:waterpollution,investigation,treatment

PreliminaryStudyonSewageTreatmentofSmallTownsinTaihuBasin.ZhangYiminetal.(NanjingInstituteofEnvironmentalScience,NEPA,Nanjing210042),Agro-environmentalProtection,1998,17(5):232—234

Constructedwetlandhavetheadvantagesoflowinvestmentcost,lowenergy,lowoperationcost,wideapplication,highefficiency,easyhandlinginsewagetreatment.IthaswideprospecttocontrolthesewageofsmalltownsinTaihuLakebasinusingconstructedwetland.

Keywords:eutrophication,TaihuLake,smalltowns,constructedwetland,sewage.

(SouthStudyontheBiologicalDiversityandthePrincipleoftheEquilibriumofEcosystem.ZhangYaohui.

ChinaAgr.Univ.,Guangzhou,510642),Agro-environmentalProtection,1998,17(5):235—236

OnStudythebiologicaldiversity,therearespeciesdiversity,geneticdiversityandecosystemdiversity.Materialcirculationandenergyflowingareconnectedwiththebiologicaldiversityinnature.Theprincipleofequilibriumofecosystemcanbeinterpretedwiththebiologicaldiversity.Keywords:biologicaldiversity,equilibriumofecosystem

ReviewsofTreatedMunicipalSewageEffluentsforAgriculturalIrrigation.LiFangbaietal.(DepartmentofChemicalEngineering,SouthChinaTechnologicalUniversity,Wushan,Guangzhou,510642),Agro-environmentalProtection,1998,17(5):237—239

Waterisbecominganincreasinglyscarcecommodity,andasmallamountofmunicipalsewageeffluentsisnowbeingconsideredasanewwaterresourcethatcanbeusedforagriculturalirrigationtosolvewatershortages.Planningofwastewaterreuseprojectsneedsasystematicapproach,undergoestheanalysisoftechnicalfeasibilityandeconomicfeasibility,andstrictlyexecutesAgriculturalIrrigationWaterQualityStandardsandotherlawsandregulations,otherwiseaseriesofenvironmentalproblemswillbecaused.Thispaperrecommendssomewaystopromotetreatedmunicipaleffluentsforagriculturalirrigationinourcountry.

Keywords:municipalsewage,agriculturalreuse,wastewatertreat

ment