水質(zhì)工程學(xué)智慧樹知到課后章節(jié)答案2023年下哈爾濱工業(yè)大學(xué)

水質(zhì)工程學(xué)智慧樹知到課后章節(jié)答案2023年下哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)

第一章測試

Thechallengesofurbanwaterresourcesinclude().

A:Urbanwaterdistributionrenderslargeenergyconsumption.

B:Capitalandoperationalcostsofwatersupplyforlongdistancetransportationarehigh.

C:Thestandardsofurbanwaterqualityarehighduetotheincreasingconcernsaboutthesafetyofurbanwatersources.

D:Highriskofurbanwaterpollution.

答案:Urbanwaterdistributionrenderslargeenergyconsumption.

;Capitalandoperationalcostsofwatersupplyforlongdistancetransportationarehigh.

;Thestandardsofurbanwaterqualityarehighduetotheincreasingconcernsaboutthesafetyofurbanwatersources.

;Highriskofurbanwaterpollution.

Itisrelativelyhardtoseparatesaltfromwater,becauseionssuchasCa2+，Mg2+，K+

aretightlysurroundedbywatermolecules.

A:錯B:對

答案:對

Lakesandreservoirwatersusuallyhavelowwatermobility,highturbidity,andrelativelystablewaterquality.()

A:對B:錯

答案:錯

Heavymetalscanbeconcentratedinplantrootsoraquaticanimals,causinggreatdangertolivingorganisms.()

A:錯B:對

答案:對

IntheUS,differentsewageplantsfollowthesamedischargestandards.()

A:對B:錯

答案:錯

第二章測試

Increasingionicstrengthwouldcompresstheelectricdoublelayerandincreasethestabilityofthecolloid.()

A:錯B:對

答案:錯

GvalueandGTvalueareemployedtodesigncoagulationtanks,becausetheycandescribethecoagulationprocesscomprehensively.()

A:錯B:對

答案:錯

Thehydraulicconditionoftherotarybaffleplateflocculationtankisbetterthanthatofthereciprocatingtype,andheadlossoftherotarytypeis40%lessthanthatofthereciprocatingtype.()

A:對B:錯

答案:對

Therearemanywaysforthecontrolofcoagulantdosageandautomaticdetection,including().

A:streamingcurrentdetector(SCD)B:dosingaccordingtoexperience

C:establishingamathematicalmodelaccordingtothequantityandqualityofrawwater

D:lighttransmissionpulsationdetector

答案:streamingcurrentdetector(SCD);establishingamathematicalmodelaccordingtothequantityandqualityofrawwater

;lighttransmissionpulsationdetector

Whichonebelowbelongstoorganiccoagulant().

A:aluminumsulfate

B:polyacrylamide(PAM)

C:polyaluminumchloride(PAC)D:limeglue

答案:polyacrylamide(PAM)

第三章測試

Whichofthefollowingmeasurecouldnotimprovethesettlingefficiencyinsedimentationtank?()

A:Torecyclethesludgetoimprovethesizeofparticles

B:Toincreasethesurfaceareaofthetank

C:Toincreasetheflowrate

D:Toimprovetheperformanceofflocculationbeforesedimentation

答案:Toincreasetheflowrate

Thefeedwaterwillgointotheupperpartofthesedimentationtankunderthecaseofdensitycurrentofhighturbidwater,leadingtothedeteriorationoftheeffluentquality.（）

A:錯B:對

答案:錯

Thereisanineffectivezoneexistsintheinclinedtube/platesedimentationtank.Theineffectivezonewouldincreaseifthesettlingzoneissmallinthetank.()

A:錯B:對

答案:對

Whichofthefollowingmethodscanrecovertheadsorptioncapacityofsludgeinclarifierprocess?()

A:Todischargethesludgecompletelyintheclarifier

B:Togenerateapulsetobreakthelargeflocs

C:Tocirculatethesludgemechanically

D:Tocirculatethesludgebyawaterjet

答案:Togenerateapulsetobreakthelargeflocs

;Tocirculatethesludgemechanically

;Tocirculatethesludgebyawaterjet

θpresentsthecontactangleofwateronthesolidsurface.Whichofthepollutant(s)withthefollowingvalueofthecontactanglecannotberemovedbyairflotationprocess.()

A:θ=85°

B:θ=1°

C:θ=95°

D:θ=150°

答案:θ=85°

;θ=1°

第四章測試

Thebiofilminslowsandfiltrationhasnegativeeffectonwaterqualitybecauseitmayincreasetheloadofdisinfection.（）

A:對B:錯

答案:錯

Thenegativewaterheadwillnotappearin()process(es)?

A:Conventionalrapidfilter

B:V-shapedfilter

C:Siphonfilter

D:Valvelessfilter

答案:Siphonfilter

;Valvelessfilter

Theexpansionrateofsingle-layerquartzsandisusuallyabout40%-45%.()

A:對B:錯

答案:對

Theeffectiveparticlesizeoffiltermediareferstotheparticlesizeoffiltermedialessthan()percentofthetotalweightafterscreening.

A:5

B:75

C:80

D:10

答案:10

Supportinglayerinthefiltercanalsocontributetotheuniformdistributionofwatertosomeextent.()

A:錯B:對

答案:對

第五章測試

Langmuirisothermassumesthatallsurfacesiteshaveequalactivity,whichmeansadsorptionenergyisindependentoftheextentofsurfacecoverageθ.()

A:對B:錯

答案:對

Insorptionprocess,filmdiffusiontransportorporetransportisusuallytheratelimitingstep.()

A:對B:錯

答案:對

Activatedcarboncanreactwithwatertreatmentagentssuchascoagulantsanddisinfectants.()

A:對B:錯

答案:對

Addinggranularactivatedcarboninintakestructurecanextendcontactingtime.()

A:錯B:對

答案:錯

Indrinkingwatertreatment,activatedcarboncanberegeneratedbyorganicsolventextraction,suchasmethanol,ethanol,benzene,acetone,andether.()

A:對B:錯

答案:錯

第六章測試

Usually,ozoneandchlorinedioxidearemuchmoreeffectivethanchlorine,whilechloramineisaweakerdisinfectantcomparedwithchlorine.()

A:對B:錯

答案:對

80℃watersprayisusuallyemployedtopromotetheevaporationofchlorine.()

A:錯B:對

答案:錯

Securityprotectionsforchlorineleakageincludepositive-pressurechlorineabsorptionequipmentandnegative-pressurechlorineabsorptionequipment.Limeorreductantscanalsobeusedtoadsorbchlorine.()

A:錯B:對

答案:對

Ozonepre-oxidationcanenhancecoagulationthroughdestroyingtheorganiccoatingonthesurfaceofinorganicmatters.()

A:錯B:對

答案:對

Thechemicalsandmaterialsusedinwatertreatmentcanbetheprecursorsofdisinfectionby-products.()

A:錯B:對

答案:對

第七章測試

Thefiltrationrateisconstantunderconstant-pressurefiltrationmode.()

A:錯B:對

答案:錯

Ingeneralfiltrationoperations,thecakelayerisactuallythemainfiltermediainsteadofthemembraneitself.()

A:錯B:對

答案:對

Microfiltration(MF),ultrafiltration(UF)andreverseosmosis(RO)areallseparationprocessesthatutilizepressuredifferenceasthedrivingforcetoma