Iyini i-Moving Bed Biomass Reactor (MBBR)? Umhlahlandlela Wobunjiniyela Nenqubo
Kwadalwa ngo 08.03
Iyini i-Moving Bed Biomass Reactor (MBBR)? Umhlahlandlela Wobunjiniyela Nenqubo
Njengoba ukukhula kwezimboni kanye nemithetho yezemvelo iqina emhlabeni wonke, izikhungo zokuhlanza amanzi angcolile zibhekana nengcindezi ekhulayo yokuthuthukisa ikhwalithi yokukhishwa kwe-biological ngaphakathi kwezindawo ezincane. Izinhlelo zendabuko ze-activated sludge zivame ukulwa nezingqinamba zomthamo, i-sludge bulking, kanye nokugcwala kwamanzi.
I-Moving Bed Biomass Reactor—evame ukubizwa ngokuthi i-Moving Bed Biofilm Reactor (MBBR)—iwuhlelo oluthuthukile lokwelapha amanzi angcolile ngendlela yebhayoloji oluhlanganisa izici zokusebenza ezihamba phambili zezinqubo zokukhula okuntantayo (i-activated sludge) nokukhula okunamathiselwe (i-fixed-film). Ngokusebenzisa izinto ezikhethekile, eziminyene eziphakeme zepulasitiki ezihamba ngokunyakaza okuqhubekayo ngaphakathi kwechibi le-reactor, ubuchwepheshe be-MBBR buhlinzeka ngendawo enkulu evikelwe yokuthi ama-microorganisms aqinise ukuthi imithwalo yezinto eziphilayo emanzini angcolile icutshungulwa ngokushesha.
1. Indlela i-Moving Bed Biomass Reactor esebenza ngayo
Indlela eyisisekelo ye-MBBR incike ekugcineni i-biofilm esebenzayo, egxile kakhulu kuma-carrier epulasitiki antantayo ayizinkulungwane.
1. Ukungena Kwamanzi Angcolile: Amanzi angcolile angenayo aqukethe izinto eziphilayo ezincibilikile (ezilinganiswa nge-BOD ne-COD) angena emgodini we-reactor.
2. Ukumiswa Kwe-Carrier: Ama-carrier antantayo enziwe nge-high-density polyethylene (HDPE) eqinile agcwalisa phakathi kuka-30% no-70% womthamo wonke we-basin.
3. Ukuphazamiseka Okuqhubekayo: Amagridi okungenisa umoya anamabhamuza amakhulu (ezindaweni ezine-oksijini) noma imishini yokuxuba (ezindaweni ezingena-oksijini) igcina izithwali zihamba njalo, ngezindlela ezintathu, kuyo yonke ithangi.
4. Ukwehliswa Kwezinto Eziphilayo: Amabhaktheriya, isikhunta, nama-protozoa akha ungqimba oluncane, olusebenzayo lwe-biofilm emagoqweni angaphakathi avikelwe ezithwalini ezihambayo, adla izinto ezingcolile ezinikwe amakhabhoni kanye ne-ammonia njengomsoco.
5. Ukugcinwa Kwamanzi Aphumile: Amanzi acutshunguliwe aphuma ngesihlungi sokugcina noma isihlungi sokukhipha esigcina izinto zepulasitiki zingene ngokuphephile ngaphakathi kwe-reactor basin, kuyilapho kuvumela amanzi acwebile kanye ne-biofilm ephumile edlule.
2. Izingxenye Ezibalulekile Zohlelo Lwe-MBBR
I-reactor yanamuhla ye-moving bed biomass isebenza njengohlelo lwe-biological oluhlanganisiwe oluncike ezingxenyeni ezine eziyinhloko zokwakheka:
● I-Reactor Basin: Ithangi lokwakheka (elakhiwe ngokhonkolo oqinisiwe, insimbi engagqwali, noma insimbi eboshwe ngokufakwa) eliklanyelwe ukugcina ukuhamba kwe-fluid nokujikeleza okuqhubekayo kwe-media.
● I-Biofilm Carrier Media: Izinto zepulasitiki ezilula ezinamaphiko angaphakathi nemigudu ekhulisa indawo ethile yobuso (ngokuvamile isukela ku-500 kuye ngaphezu kuka-1,200m2 m3).
● Uhlelo Lokungenisa Umoya / Lokuxuba: Luletha umoya-mpilo oncibilikile (DO) odingekayo ekucubungulweni kwe-aerobic biological oxidation kuyilapho lukhiqiza amandla e-hydrodynamic shear ashayela izendlalelo zangaphandle ze-biofilm ezifile.
● Izihlungi Zokugcina I-Media: I-stainless steel mesh noma izikrini ezinemigodi ezifakwa ezindaweni zokuphuma kwamanzi ukuvimbela ukuphuma kwe-carrier noma ukuvaleka.
3. I-Matrix Yokuqhathanisa: I-MBBR vs. Ezinye Izindlela Zokwelapha
Onjiniyela bezemvelo bahlola ubuchwepheshe be-MBBR ngokuqhathanisa nezinhlaka ezijwayelekile zokwelapha nge-biological kumamethrikhi abalulekile okusebenza:
Ipharamitha Yokuhlola | I-Moving Bed Biomass Reactor (MBBR) | I-Conventional Activated Sludge (CAS) | I-Membrane Bioreactor (MBR) |
Indlela Yokugubungela | I-biofilm ekhula emathwalini ahambayo | I-floc ephilayo emisiwe emanzini | I-floc emisiwe enama-membrane okuhlunga |
I-Return Activated Sludge (RAS) | Ayidingekile (i-biomass ihlala inamathele ezintweni zokuthwala) | Kuyimpoqo (kuncike ekuqhubekeni kokujikeleza kwe-sludge) | Kuyimpoqo |
Indawo Esetshenziswayo | Inciphile kakhulu (umthwalo ophezulu we-volumetric) | Kudingeka indawo enkulu yokwakha | Inciphile kakhulu |
Ukumelana Nemithwalo Eshukumisayo | Phezulu (i-biofilm ivikela amakoloni angaphakathi amabhaktheriya) | Phansi (kungenzeka ukulahleka kwe-biomass nokufa okubangelwa ubuthi) | Phakathi |
Ukugcinwa Kokusebenza | Kuphansi kakhulu (akukho ukungcola kwe-membrane noma ukuvuvukala kwe-sludge) | Kuphakathi (kudinga ukuqapha kwe-SVI nokubuyiswa kwe-sludge) | Kuphezulu (kudinga ukuhlanza nokushintshwa kwe-membrane njalo) |
4. Izicelo Eziyinhloko Zezimboni Nomasipala
Ngenxa yokuthi ubuchwepheshe be-MBBR bungamamojula, buqina, futhi kulula ukubukhulisa, busetshenziswa kabanzi emikhakheni eminingi:
● Ukucubungula Ukudla Neziphuzo: Ukuphatha amanzi angcolile ane-BOD ephezulu avela ezinkampanini zobisi, ezotshwala, nezindawo zokucubungula inyama.
● Ukuhlanjululwa kwamakhemikhali ne-Petrochemical: Ukwelapha izinhlanganisela eziyinkimbinkimbi ze-synthetic organic kanye nemifudlana yamanzi angcolile anobuthi ezimbonini.
● Ukuthuthukiswa Kwendlela Yamanzi Angcolile Asemadolobheni: Ukufaka kabusha amabhasedi e-activated sludge asetshenziswa ngokweqile ukuze kwandiswe umthamo wesikhungo ngaphandle kokwakha izakhiwo ezintsha zomphakathi.
● Ukususwa Kwezakhi (Nitrification/Denitrification): Ukufeza ukunciphisa kwe-ammonia ne-nitrogen ephelele ngendlela ephumelelayo ezimweni zamanzi abandayo.
Imibuzo Ejwayelekile (FAQ)
Umbuzo: Umehluko omkhulu phakathi kwe-MBBR nesistimu ye-activated sludge yini?
A: Ohlelweni lwe-activated sludge, amagciwane akhula njengama-flocs alengayo oketshezini futhi adinga umugqa oqhubekayo we-Return Activated Sludge (RAS) ovela ku-clarifier. Ku-MBBR, amagciwane akhula enamathisele kuma-plastic carriers anyakazayo antanta ngaphakathi kwethangi, kususa isidingo somugqa wokubuyisela i-sludge futhi kuvimbele izinkinga zokwanda kwe-sludge.
Q: Kuthatha isikhathi esingakanani i-plastic carrier media ukuze ihlale esakhiweni se-moving bed biomass reactor?
A: I-carrier media yekhwalithi ephezulu eyenziwe nge-high-density polyethylene (HDPE) yakhelwe ukumelana nokugqekezelwa okuqhubekayo, ukushayisana, nokucindezela kwe-hydraulic. Ngaphansi kwezimo ezijwayelekile zokusebenza kwesikhungo, ama-MBBR carriers avame ukuhlala iminyaka engaphezu kwengu-20 ngaphandle kokonakala.
Q: Ingabe isikhungo esikhona sokuhlanza amanzi angcolile singathuthukiswa sisebenzisa ubuchwepheshe be-MBBR?
A: Yebo. Enye yezinzuzo ezinkulu ze-MBBR amandla ayo okuguqula. Amachibi akhona okungenisa umoya angaguqulwa abe ama-reactor e-moving bed biomass ngokumane nje kufakwe ama-retention sieves, kubuyekezwe ama-aeration grids, futhi kwengezwe izinto zokuthwala, okwandisa ngokushesha amandla okwelapha kabili noma kathathu ngaphandle kokwandisa indawo yezitshalo.
Q: Ingabe izinto zokuthwala ze-MBBR zivame ukuvaleka ngesikhathi sokusebenza?
A: Cha. Ngenxa yokuthi izinto zokuthwala zepulasitiki zihlala zinyakaza ziqhutshwa yi-bubble aeration noma ukuxuba ngomshini, amandla aqhubekayo okusika abangela ukuthi i-biofilm egugile, eningi ihlubuke ngokwemvelo, igcine izinto zokuthwala zihlanzekile futhi ivimbele ukuvaleka kwe-hydraulic.
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