26. Lub sludge index?
Lub Sludge index (Svi) hais txog qhov ntim ib gram ntawm qhuav sludge ntawm qhov hluav taws xob ntawm lub tank aeration tom qab 30 feeb ntawm kev tswm. Nws yog ntsuas hauv milliliters.
Ib tus nqi svi tsawg qhia tau zoo, ntom ntom ntom, siab nyob rau hauv inorganic teeb meem, thiab tsis muaj kev ua si thiab muaj peev xwm adsorption. Lub siab Svi tus nqi qhia tau tias qhov sludge yog qhov nyuaj los khom thiab yog hais txog swell lossis twb tau o. Qhov laj thawj yuav tsum tau txheeb xyuas thiab ntsuas kev.
27. Dab tsi yog sludge bulking, tawm tsam, decomposition, floating, thiab foaming?
Sludge Bulking: Thaum sludge bulkates, nws yuav nyuaj los khom, lub ntim cov ntsiab lus nce, cov kua dej tau nce ntxiv, thiab cov xim hloov.
Sludge ua kom tawg: Turbid kho dej, Turbid Sludge Caumulation thiab micronization, thiab kev kho kom tsis zoo yog txhua yam ntawm sludge ua kom tawg.
Sludge lwj: Ntev-}} lub sij hawm sludge carrmentation thiab roj av, uas ua rau lub qab ntawm sludge loj ntawm cov chunge loj.
Sludge Floating: Qhov tshwm sim ntawm sludge ntab hauv theem nrab shoulentation tank hauv cov chunks loj.
Foaming: Foaming hauv kev tso tsheb hlau diav muaj kev tso pa Aeration feem ntau tshwm sim los ntawm cov khoom siv hluavtaws loj ntawm cov khoom siv hluavtaws lossis lwm yam kev ua npuas dej hauv cov dej khib nyiab.
28. Dab tsi yog qhov ua kom tawg kev sib cav?
Ua kom cov kab mob sludge cov kab mob yog cov neeg coob coob ntawm ntau hom kab mob muaj ntau yam yog cov qauv kev loj hlob tuaj yeem sawv cev los sawv cev rau qee hom qauv. Qhov kev nkhaus no qhia txog kev loj hlob thiab lwj ntawm cov kab mob sib kis tau ntxiv, cov kab mob ib txwm muaj, muab cov kev loj hlob ntawm cov microbial inoculum inoculum inoculum tam sim no.
Kev hloov pauv hauv kev ua haujlwm sludge kev loj hlob tus nqi yog feem ntau tsav los ntawm kev sib piv ntawm cov as-ham rau cov microorganisms rau cov kab mob (feem ntau qhia ua f / m). Cov F / M piv tseem ceeb yog qhov tseem ceeb cuam tshuam rau cov organic substrate degradation, thiab kev siv cov pa oxygen thiab adsorption thaj chaw ntawm kev ua haujlwm sludge.
Kev ua kom zoo nkauj nkhaus muaj plaub theem: kev yoog, decelerated kev loj hlob (ntau tshaj biomass), thiab endelous pa).
29. Muaj pes tsawg theem tau koom nrog kev ua kom huv si?
Ua kom sludge purifies wastewater los ntawm peb theem:
Hauv thawj theem, dej khib nyiab yog huv feem ntau los ntawm kev ua haujlwm sludge tus txheej txheem adsorption. Adsorption tshwm sim sai heev, feem ntau ua tiav nyob rau hauv 30 feeb, thiab tuaj yeem ua tiav lub BOD5 kev tshem tawm tus nqi ntawm 70%. Nws tseem muaj cov txiaj ntsig oxidation oxidation, tab sis adsorption yog thawj qhov haujlwm.
Qhov theem ob, tseem hu ua cov theem oxidation, feem ntau txuas ntxiv mus rau cov oliidation ua ntej oxidation ua ntej, thaum tseem txuas ntxiv rau Adsorb tseem tshuav ib qho ntxiv.
Theem peb yog qhov sludge - dej sib cais theem. Nyob rau theem no, ua haujlwm sludge undergoes dedimeation thiab sib cais nyob rau hauv theem nrab cletimation tank. Ob qho tib si anabolism thiab catabolism los ntawm cov kab mob me tuaj yeem tshem tawm cov organic paug los ntawm cov dej qias neeg los ntawm cov dej khib nyiab, tab sis cov khoom sib txawv.
30. Cov yam ntxwv ntawm lub tsev pheeb suab ib nrab?
Cov yam ntxwv ntawm cov av nkos theem nrab: ntxiv rau kev sib cais av thiab, vim yog cov khoom siv hauv dej zoo thiab ntim, ib ntus khw muag khoom.
31. Dab tsi yog qhov dej phwj taus qeeb infiltration?
Kev qaug dej tsis tau qeeb infiltration pub dej phwj maj mam hla dhau hauv av, ua kom huv los ntawm kev ua kom pom tseeb. Nws yog haum rau xau nrog cov permeability zoo, qis evapority, thiab huab cua huab cua tau.
32. Dab tsi yog qhov dej phwj ceev ceev infiltration system?
Nws yog tsim nyog rau xau nrog permeability siab heev, xws li xuab zeb thiab gravelly sandy xau. Tom qab cov dej phwj tuaj txog rau saum npoo ntawm cov teb infiltration kev Infiltration, nws tau sai sai saib rau hauv av thiab thaum kawg nkag mus hauv av.
33. Koj muaj pes tsawg theem nyob rau hauv cov kev tawm tsam anaerobic? Lawv yog dab tsi?
Cov tshuaj anaerobic tau muab faib ua peb theem:
Thawj theem yog kev rhuav tshem cov organic teeb meem mus rau cov khoom fatty acid khoom los ntawm hydrolytic thiab fermentative cov kab mob.
Qhov theem ob yog qhov hloov dua tshiab ntawm hydrogen thiab acetic acid los ntawm hydrogen los rau hydrogen, carbon dioxide, thiab acetic acid.
Theem peb yog methane fermentation theem (alkaline fermentation theem). Two different groups of methanogens work together: one group converts hydrogen and carbon dioxide into methane, while the other group removes acetic acid to produce methane.
34. Dab tsi yog ob -} pawv plab zom mov?
Ob {- pege zom cov kua qaub ntau lawm thiab methanogenesis theem ntawm anyaerobic kev zom ntawm cov organic kev zom.
35. Dab tsi yog cov khoom siv ntawm sludge?
Sludge tuaj yeem muab faib ua cov organic thiab inorganic Cheebtsam.
Ua raws li nws qhov chaw, nws tuaj yeem muab faib ua thawj cov chaw nyob ruaj khov, seem ua kom zoo nkauj, txo hwj chim sludge, thiab tshuaj lom neeg sludge.
36 Yuav ua li cas hom dej nyob hauv sludge?
Cov ntsiab lus dej hauv sludge tau muab faib ua plaub pawg: intersttitial dej ntawm cov dej, dej adsorbed los ntawm sludge hais, thiab dej hauv cov lus.
Txoj kev tshem tawm: Lub ntiajteb txawj nqus, flotation, thiab centrifugation.
37. Dab tsi yog cov khoom siv ntawm cov tshuab hluav taws xob?
Neeg kho txhua yam dewatering: Lub tshuab nqus dej dewatering, lim xovxwm dewatering, cov menyuam cov detratering, thiab centrifugal sludge dewatering.
38. Dab tsi yog lub hom phiaj ntawm slude ruaj?
Lub hom phiaj ntawm slude stabilization: kom tshem tawm cov ntxhiab tsw thiab tua cov kab mob pathogenic microorganism hauv sludge.
39. Dab tsi yog adsorption?
Adsorption yog cov txheej txheem ntawm kev siv cov khib nyiab ntxig (xws li cov khoom siv cov pa roj carbon monoxent (xws li polyferb lom thiab nyob rau hauv cov micrroporater mus rau cov khib nyiab lossis cov flocs ua kom huv. Cov tshuaj adsorbed tuaj yeem yog cov khoom siv tsis tau los yog cov tshuaj yeeb dej.
40. Dab tsi yog cov yam ntxwv ntawm lub cev adsorption thiab tshuaj ua adsorption?
Cov yam ntxwv ntawm lub cev Adsorption: Qhov kub ntawm adsorption yog tsawg, nws tuaj yeem tshwm sim ntawm tsawg kub, thiab adsorption tsis yog- xaiv.
Cov yam ntxwv ntawm cov tshuaj ua adsorption: cov cua sov ntawm adsorption yog siab, adsorption yog tsis pub lwm tus, thiab adsorption yog xaiv.
41. Dab tsi yog resin ntom?
Resin ntom ntom: Feem ntau, nws tau qhia nyob rau ob txoj kev: ntub qhov tseeb ntom thiab ntub lub nrawm. Ntub ntub qhov ceev tau muaj feem xyuam nrog lub zog tom qab lub zog thiab nthuav tawm ntawm cov txheej txheem resin, ntxiv rau cov khaub ncaws cob rau hauv cov txaj sib xyaw thiab ob lub txaj. Kev ntub dej ceev ceev yog siv los laij cov nqi ntub yuav tsum muaj rau cov ion sib pauv.
42. Dab tsi yog qhov ua haujlwm ntawm dej -} txau packing?
Txoj haujlwm ntawm cov dej -} Txau packing yog kom cov dej ntws tawm los ntawm cov tee dej kom zoo los yog dej zaj duab xis los ntawm kev txaws. Qhov no nce thaj tsam ntawm dej thiab huab cua thiab ntev lub sijhawm sib cuag, yog li ua kom sov sov thiab loj txauv ntawm huab cua thiab dej.
43. Dab tsi yog cov cawv cawv uas tsis sib xyaw?
Sib xyaw cawv cov khib nyiab tsis sib xws (MLVss) yog hais txog qhov hnyav ntawm cov neeg tsis zoo ntawm cov dej cawv hauv cov cawv hauv cov cawv hauv lub biochemical tank. Nws tseem tau qhia hauv MG / l. Txij li nws tsis suav nrog inorganic teeb meem hauv kev ua haujlwm sludge, nws yog qhov tseeb tshaj plaws sawv cev ntawm cov microorganisms hauv kev ua haujlwm sludge.
44. Yog vim li cas yog qhov sludge tshaj?
Thaum lub sijhawm kho cov kab mob biochemical, cov kab mob me me hauv kev ua kom zoo nkauj tsis tu ncua haus cov organic nyob hauv cov dej khib nyiab.
Ntawm no tau siv cov teeb meem organic, ib txhia yog oxidized los muab lub zog rau lub neej microbial, thaum lwm qhov feem ntawm cov kab mob tshiab cytoplasm, ua rau lawv cov kev luam tawm. Raws li cov microorganisms metabolize, qee cov kab mob qub tuag tuag, ua rau muaj kev sib cav tshaj.
45. Dab tsi yog rab koob- charcoal thev naus laus zis?
Hlau -} Lub npe hu ua hlau {}}} electrolysis, yog ib daim ntawv thov ntawm cov hlau av hlau siv cov tshuab. Siv cov hlau - hom carbon txoj kev ua ib qho kev ua tsis tau zoo hauv kev kho cov tshuaj lom thiab phom sij nrog cov kab mob siab dua.
46. Vim li cas thiaj yuav tsum muaj ph txog ph effluent los ntawm neutralation sawb tedimentation tank tau muab kho kom tau saum toj 9?
Qhov effluent los ntawm cov hlau -} Kev kho carbon muaj ntau ntawm ferrous sulfate. Yog tias tsis tshem tawm, nws yuav cuam tshuam rau kev loj hlob thiab luam ntawm cov microorganism hauv cov tom ntej biochemical tank.
Yog li ntawd, peb yuav tsum siv cov txiv qaub los tsa cov p of wastewaterater los ntawm}}}}}}}}}}}}}}} ecium fydrous hydrot hydroxide thiab calcium sulfate. Cov no yog tam sim no los ntawm kev sib cais thiab kev ua kom ua kom cov dej ntas kom ua kom cov dej huv si hauv pas dej tsis muaj sia muaj sia muaj sulfate.
47. Hom flotation yog dab tsi?
Flotation tau muab faib ua cov huab cua yaj (lub tshuab nqus tsev yaj ua kom khov thiab siv cua sib cais, thiab cua tshuab hluav taws xob.
48. Dab tsi yog flocculation?
Flocculation cuam tshuam nrog kev ntxiv cov polymer coagulant rau cov neeg quav dej. Thaum yaj, cov polymer cov ntawv ua ib lub polymer. Cov qauv polymer no muaj ib qho qauv kab, nrog ib kawg ntawm txoj kab tuav ib qho me me thiab lwm qhov kawg tuav lwm qhov me me. Qhov no ua raws li tus choj nruab nrab ntawm ob qho kev sib tw, ua rau maj mam tsim cov khaub thuas loj (feem ntau yog flocs), uas nrawm particle)
49. Vim li cas yog polyferric hlau siv rau flocculation thiab Adsorption kev kho mob ntawm dej khib nyiab?
Thaum lub sij hawm ua kev sib cais, polyferric hlau cov ntaub ntawv hlau hydroxide flocs, uas muaj lub peev xwm muaj zog rau adsorb cov organic nyob hauv Wastewater. Kev sim cov ntaub ntawv qhia tau tias polyfer hlau flocculation thiab adsorption tau tshem tawm cov kev kho mob ntawm cov neeg lim dej hauv kev ua raws li cov qauv kev daws teeb meem.
Ib qho ntxiv, siv polyferric hlau rau kev ua tsis tau zoo tuaj yeem tshem tawm cov tshuaj lom neeg hauv dej tsis huv, kom ua tau txoj haujlwm ntawm cov microorganism hauv tank. Ntawm ntau cov coagulants, polyferric hlau yog qhov pheej yig (25-300 yuan / tuj), ua rau nws haum rau kev ua haujlwm ntawm cov txheej txheem pov tseg.
50. Vim li cas colloidal hais nyob rau hauv wastewater tsis yooj yim sua siab ib txwm?
Coob tus impurities nrog ib qho kev nqus tshwj xeeb ntau dua 1, cov khoom loj, thiab yooj yim daws cov khib nyiab uas tuaj yeem tshem tawm los ntawm ntuj sedimeration, centrifugation, thiab lwm txoj kev.
Txawm li cas los xij, tshem tawm cov lus nrog cov kev nqus tshwj xeeb tsawg dua 1, uas yog li ntawd tsis zoo heev uas lawv tseem tsis pom zoo rau lub qhov muag, yog qhov nyuaj rau kev sib haum xeeb. Piv txwv li, colloidal hais yog microparticts nrog qhov loj ntawm 10-4-10,6 hli. Lawv yog qhov ruaj khov nyob hauv dej thiab muaj ib tus nqi qeeb heev. Nws siv 200 xyoo ntawm tillage los khom 1 meter.