0102030405
I-Membrane Bioreactor ye-MBR yokuPhakheji yeSistim yeSistim yokuGutyulwa kwaManzi amdaka
Umgaqo osebenzayo we-mbr membrane bioreactor
I-MBR membrane bioreactor (MBR) yindlela esebenzayo yokucoca amanzi amdaka edibanisa itekhnoloji yokwahlula inwebu kunye nobuchwepheshe bonyango lwebhayoloji. Umgaqo wayo wokusebenza usekelwe ikakhulu kula manqaku alandelayo:
I-teknoloji yokwahlula i-Membrane: I-MBR membrane ihlukaniswe nge-ultrafiltration okanye i-microfiltration membrane iteknoloji, ithathela indawo itanki ye-sedimentation yesibini kunye neyunithi yokucoca eqhelekileyo kwinkqubo yokucocwa kwamanzi amdaka. Le teknoloji inokubamba ngokufanelekileyo i-sludge esebenzayo kunye ne-macromolecular organic matter, ukuze kuphunyezwe ukwahlukana okuqinileyo-olwelo.
Ulwahlulo oluphezulu lwe-solid-ulwelo olusebenzayo: Ubuchule obuphezulu bokukwazi ukwahlula okuqinileyo okuqinileyo kwe-MBR membrane bioreactor kwenza umgangatho wamanzi amdaka ube mhle, into enqunyanyisiweyo kunye ne-turbidity isondele ku-zero, kwaye inokubamba izingcolisi zebhayoloji ezifana ne-E. coli. Umgangatho wamanzi amdaka emva kokucocwa ngokucacileyo ungaphezulu kunenkqubo yokucocwa kwamanzi amdaka esintu, kwaye bubuchwephesha obusebenzayo nobunoqoqosho bokurisayikilisha bobutyebi bamanzi amdaka.
Ukuphuculwa kwesiphumo sonyango: Inkqubo ye-MBR inwebu yomeleza kakhulu umsebenzi we-bioreactor ngokusebenzisa itekhnoloji yokwahlulwa kwe-membrane, kwaye yenye yezona zinto zithembisayo zobuchwepheshe bokucoca amanzi amdaka xa kuthelekiswa neendlela zonyango lwebhayoloji yemveli. Ineengenelo ezicacileyo ezifana nezinga eliphezulu lokususa izinto ezingcolisayo, ukuxhathisa okuqinileyo ekudumbeni kodaka, umgangatho ozinzileyo nothembekileyo wamanzi amdaka.
Iimpawu zesixhobo: Iimpawu zenkqubo ye-MBR inwebu yenkqubo yokucoca i-membrane yasekhaya yezixhobo zokucocwa kwamanzi amdaka ziquka izinga eliphezulu lokususa izinto ezingcolisayo, ukuchasana okuqinileyo nokudumba kwe-sludge, umgangatho wamanzi amdaka ozinzileyo nothembekileyo, ukuvalwa komatshini wenwebu ukuphepha ukulahleka kwe-microorganisms, kunye noxinzelelo oluphezulu lwe-sludge. zigcinwe kwi-bioreactor.
I-MBR inwebu ye-bioreactor ngokusebenzisa le migaqo ingasentla, ukuphumeza isiphumo esisebenzayo nesizinzileyo sokucocwa kogutyulo lwelindle, olusetyenziswa ngokubanzi kunyango lwasekhaya, ukucocwa kwamanzi amdaka kwimizi-mveliso kunye neminye imimandla.
Ukuqulunqwa kwe-MBR membrane bioreactor
Inkqubo yeMembrane bioreactor (MBR) idla ngokuqulunqwa ngala malungu alandelayo:
1. Iqula lokungena kwamanzi: iqula lokungena lamanzi lixhotyiswe ngesango lokuphuma kwamanzi kunye nesango lokungena kwamanzi. Kwimeko apho ubuninzi bamanzi budlula umthwalo wenkqubo okanye inkqubo yonyango inengozi, isango lokungena kwamanzi livaliwe, kwaye ugutyulo lukhutshwe ngokuthe ngqo emlanjeni okanye kumnatha wombhobho kamasipala okufutshane ngezibuko lokuphuphuma.
2. Igridi: amanzi amdaka ahlala equlethe inkunkuma eninzi, ukwenzela ukuba kuqinisekiswe ukusebenza okuqhelekileyo kwe-membrane bioreactor, kuyafuneka ukuba uthintele zonke iintlobo zemicu, i-slag, inkunkuma yephepha kunye nezinye iinkunkuma ngaphandle kwenkqubo, ngoko ke kuyimfuneko ukuseta. igridi phambi kwenkqubo, kwaye rhoqo ucoce igridi slag.
3.Itanki yommiselo: Ubungakanani kunye nomgangatho welindle eliqokelelweyo litshintsha ngokuhamba kwexesha. Ukuze kuqinisekiswe ukusebenza okuqhelekileyo kwenkqubo yonyango elandelayo kunye nokunciphisa umthwalo wokusebenza, kuyimfuneko ukulungelelanisa ubuninzi kunye nomgangatho wokuthuthwa kwamanzi amdaka, ngoko itanki yokulawula yenzelwe ngaphambi kokungena kwinkqubo yonyango yezinto eziphilayo. Itanki yokulungisa kufuneka icocwe rhoqo kwintlenga. I-pool yokulawula ngokuqhelekileyo imiselwe ukuphuphuma, enokuqinisekisa ukusebenza okuqhelekileyo kwenkqubo xa umthwalo ukhulu kakhulu.
4. Umqokeleli weenwele: Kwinkqubo yokucoca amanzi, kuba amanzi amdaka aqokelelweyo aqokelelwe equlathe inani elincinci leenwele kunye nefayibha kunye nezinye iinkunkuma ezintle ukuba igridi ayikwazi ukunqanda ngokupheleleyo, iya kubangela ukuvaleka kwimpompo kunye ne-MBR reactor, ngaloo ndlela inciphisa unyango olusebenzayo, ngoko ke i-membrane bioreactor eveliswe yinkampani yethu ifakwe umqokeleli weenwele.
5. Itanki yokusabela ye-MBR: Ukutshatyalaliswa kwezinto ezingcolileyo zezinto eziphilayo kunye nokwahlulwa kodaka kunye namanzi kuqhutyelwa kwitanki yokusabela ye-MBR. Njengenxalenye ephambili yenkqubo yonyango, itanki yokusabela ibandakanya iikholoni ze-microbial, amacandelo e-membrane, inkqubo yokuqokelela amanzi, inkqubo yokungcola, kunye nenkqubo yokufaka umoya.
6. Isixhobo sokubulala iintsholongwane: Ngokweemfuno zamanzi, inkqubo ye-MBR eveliswa yinkampani yethu yenzelwe isixhobo sokubulala iintsholongwane, esinokulawula ngokuzenzekelayo umthamo.
7. Isixhobo sokulinganisa: Ukuze kuqinisekiswe ukusebenza kakuhle kwenkqubo, inkqubo ye-MBR eveliswe yinkampani yethu isebenzisa izixhobo zokulinganisa iimitha ezifana nemitha yokuhamba kunye nemitha yamanzi ukulawula iiparitha zenkqubo.
8. Isixhobo sokulawula i-elektroniki: ibhokisi yokulawula yombane efakwe kwigumbi lezixhobo. Ilawula kakhulu impompo yokuthatha, ifeni kunye nempompo yokufunxa. Ulawulo lufumaneka kwiifom zemanuwali kunye nezizenzekelayo. Ngaphantsi kolawulo lwe-PLC, impompo yamanzi yokungena iqhuba ngokuzenzekelayo ngokwenqanaba lamanzi lechibi ngalinye lokusabela. Ukusebenza kwempompo yokufunxa kulawulwa rhoqo ngokwexesha elibekiweyo. Xa inqanaba lamanzi le-MBR reaction pool liphantsi, impompo yokufunxa iyayeka ngokuzenzekelayo ukukhusela indibano yefilimu.
9. Idama elicacileyo: ngokobungakanani bamanzi kunye neemfuno zabasebenzisi.
Iintlobo ze-MBR membrane
Ii-membranes kwi-MBR (i-membrane bioreactor) zohlulwe kakhulu zibe zezi ntlobo zilandelayo, nganye ineempawu ezizodwa:
Inwebu yefiber eHollow:
Ifom ye-Physical: I-membrane ye-fiber egobileyo iyisakhiwo se-bundle, esakhiwe ngamawaka eentsinga ezincinci ezingenanto, ngaphakathi kwi-fiber yi-channel ye-liquid, ngaphandle kwamanzi amdaka afanele aphathwe.
Iimpawu: Ubuninzi bendawo ephakamileyo: kukho indawo enkulu ye-membrane yomhlaba kwiyunithi yomthamo, okwenza isixhobo sidibanise kunye neenyawo ezincinci. Ukuhlamba igesi okufanelekileyo: Umphezulu wefilimu unokuhlanjwa ngokuthe ngqo nge-aeration, enceda ukunciphisa ungcoliseko lwe-membrane.
Kulula ukuyifaka kunye nokutshintsha: Uyilo lwemodyuli ukuze kube lula ukugcinwa kunye nokuphuculwa.
Ukusabalalisa ubungakanani be-pore bufanayo: umphumo wokuhlukana ulungile, kwaye izinga lokugcinwa kwezinto ezimisiweyo kunye ne-microorganisms ziphezulu.
Ukwahlula: kubandakanywa ifilimu yekhethini kunye nefilimu ecaba, ifilimu yekhethini isoloko isetyenziselwa i-MBR ephantsi kwamanzi, ifilimu ecwecwe ifanelekile kwi-MBR yangaphandle.
Ifilim ecaba:
Ifom yePhysical: I-diaphragm igxininiswe kwinkxaso, kwaye amacala amabini ngokulandelanayo ngamanzi amdaka afanele aphathwe kunye nolwelo olugqithisayo.
Iimbonakalo:
Isakhiwo esizinzile: i-diaphragm egudileyo, amandla omatshini aphezulu, akulula ukwenza i-deformation, amandla anamandla okucinezela.
Isiphumo esihle sokucoca: Umphezulu kulula ukucoceka, kwaye ukungcola kunokususwa ngokufanelekileyo ngokucoca iikhemikhali kunye nokukhuhla ngokomzimba.
Ukuxhatshazwa kokugqoka: Kwixesha elide lokusebenza, ifilimu yokugqoka ifilimu incinci, kwaye ubomi benkonzo bude.
Ifanele ukwahlula okuqinileyo-olwelwelo: isiphumo sokunqunyulwa kwento enqunyanyisiweyo enamasuntswana amakhulu igqwesile kakhulu.
Ifanelekile kwiiprojekthi ezinkulu: Uyilo lwemodyuli kulula ukwandisa kwaye lufanelekile kwiindawo zokucocwa kwamanzi amdaka amakhulu.
Ifilimu yeTubula:
Ifom ye-Physical: I-membrane ye-membrane ihlanganiswe kumzimba wokuxhasa i-tubular, kwaye amanzi amdaka ahamba kwi-tube kwaye angena nge-liquid eludongeni lombhobho.
Iimbonakalo:
Ubuchule obunamandla bokuchasana nokungcoliseka: Uyilo lwangaphakathi lomjelo wokuhamba luququzelela ukubunjwa kwesiphithiphithi kunye nokunciphisa ukubekwa kwezinto ezingcolileyo kwi-membrane surface.
Ikhono elihle lokuzicoca: ukuhamba kwamanzi ngesantya esiphezulu kwi-tube kunceda ukuhlamba umphezulu we-membrane kunye nokunciphisa ungcoliseko lwe-membrane.
Ukulungelelaniswa nomgangatho ophezulu wamanzi amdaka: Uxinzelelo oluphezulu lwento enqunyanyisiweyo kunye ne-fibrous matter inomthamo wonyango olungcono.
Ukugcinwa okulula: Xa icandelo elilodwa le-membrane lonakaliswe, linokuthi litshintshwe ngokwahlukileyo, ngaphandle kokuchaphazela ukusebenza kwenkqubo yonke.
Ifilimu yeCeramic:
Ifom yePhysical: ifilimu ene-porous sintered kwi-inorganic materials (ezifana ne-alumina, i-zirconia, njl.), kunye nesakhiwo esiqinileyo esizinzileyo.
Iimbonakalo:
Ukuzinza kweekhemikhali okugqwesileyo: ukumelana ne-asidi, i-alkali, i-solvents ye-organic kunye namaqondo okushisa aphezulu, afanelekile kwiindawo zokucocwa kwamanzi amdaka amashishini.
Ukumelana nokunxiba, ukuchasana nongcoliseko: umphezulu we-membrane ogudileyo, akukho lula ukufunxa izinto eziphilayo, izinga eliphezulu lokubuyisela emva kokucoca, ubomi obude.
I-aperture echanekileyo kunye nokulawulwayo: ukuchaneka okuphezulu kokuhlukana, ukulungelelaniswa kakuhle kunye nokususwa okungcolileyo.
Amandla aphezulu omatshini: ukumelana nokuqhekeka, ukulungele ukusebenza koxinzelelo oluphezulu kunye nokuhlamba rhoqo.
Ukuhlelwa ngokobungakanani bombombo:
I-membrane ye-Ultrafiltration: I-aperture incinci (ngokuqhelekileyo phakathi kwe-0.001 kunye ne-0.1 microns), ngokukodwa ukususa ibhaktheriya, iintsholongwane, i-colloids, i-macromolecular organic matter kunye nokunye.
I-Microfiltration inwebu: I-aperture inkulu kancinane (malunga ne-0.1 ukuya kwi-1 micron), ikakhulu ibamba izinto eziqinileyo ezimisiweyo, ii-microorganisms, kunye ne-macromolecular organic matter.
Ukuhlelwa ngokwendawo:
Ukuntywiliselwa: Icandelo le-membrane lintywiliselwa ngokuthe ngqo kulwelo oluxubeneyo kwi-bioreactor, kwaye ulwelo oluvuzayo lutsalwa ngokufunxa okanye ukutsalwa kwerhasi.
Ngaphandle: Imodyuli ye-membrane imiselwe ngokwahlukileyo kwi-bioreactor. Ulwelo oluza kunyangwa lunyanzeliswa yimpompo kwaye luhamba ngemodyuli ye-membrane. Ulwelo olugqithisayo olwahluliweyo kunye nolwelo olugxininisiweyo luqokelelwa ngokwahlukeneyo.
Isishwankathelo, iintlobo ze-membrane kwi-MBR ziyahlukahluka kwaye zineempawu zazo, kwaye ukukhethwa kwe-membrane kuxhomekeke kwiipropati ezithile zamanzi amdaka, iimfuno zonyango, uhlahlo lwabiwo-mali lwezoqoqosho, iimeko zokusebenza kunye nokugcinwa kunye nezinye izinto. Abaqulunqi kunye nabasebenzisi kufuneka benze ukhetho olufanelekileyo ngokwemeko yangempela ukuqinisekisa ukusebenza ngokufanelekileyo kunye nokuzinza kwenkqubo ye-MBR.
Indima ye-MBR membrane bioreactor kunyango lwamanzi amdaka
Indima yenkqubo ye-MBR kunyango logutyulo ibonakaliswa ikakhulu kule miba ilandelayo:
Ukwahlula okusebenzayo okuqinileyo okuqinileyo. I-MBR isebenzisa inwebu ukufezekisa ulwahlulo olululo olululwelo olusebenzayo, iphucula kakhulu umgangatho wamanzi amdaka, kufutshane ne-zero into enqunyanyisiweyo kunye ne-turbidity, kwaye isusa kakhulu ibhaktheriya kunye neentsholongwane.
Uxinzelelo lwe-microbial ephezulu. I-MBR iyakwazi ukugcina ugxininiso oluphezulu lwe-sludge esebenzayo kunye nokwandisa umthwalo we-organic wonyango lwebhayoloji, ngaloo ndlela inciphisa indawo yokucoca amanzi amdaka.
Nciphisa i-sludge engaphezulu. Ngenxa yempembelelo ye-MBR, ukuveliswa kodaka olushiyekileyo kunokuncitshiswa kwaye iindleko zonyango lwe-sludge zingancitshiswa. 34
Ukususwa okusebenzayo kwe-ammonia nitrogen. Inkqubo ye-MBR inokubamba ii-microorganisms kunye nomjikelo omde wesizukulwana, njengebhaktheriya ye-nitrifying, ukuze ithobe ngokufanelekileyo i-ammonia nitrogen emanzini.
Gcina indawo kwaye unciphise ukusetyenziswa kwamandla. Inkqubo ye-MBR ngolwahlulo olusebenzayo olululwelo oluluqilima kunye ne-bioenrichment, ixesha lokuhlala kwi-hydraulic yeyunithi yonyango lifutshane kakhulu, indawo ye-bioreactor iyancitshiswa ngokuhambelanayo, kunye nokusetyenziswa kwamandla kweyunithi yonyango nako kuncitshiswe ngokuhambelanayo ngenxa yokusebenza okuphezulu inwebu.
Ukuphucula umgangatho wamanzi. Iinkqubo ze-MBR zibonelela ngamanzi amdaka akumgangatho ophezulu ahlangabezana nemigangatho engqongqo yokukhutshelwa okanye iimfuno zokuphinda zisetyenziswe.
Isishwankathelo, i-MBR membrane bioreactor idlala indima ebalulekileyo ekuphathweni kwamanzi amdaka, kubandakanywa ukwahlula okuqinileyo okuqinileyo okuqinileyo, ukunyuka kwe-microbial concentration, ukunciphisa i-sludge eseleyo, ukususa ngokufanelekileyo i-nitrogen ye-ammonia, ukugcina indawo kunye nokunciphisa ukusetyenziswa kwamandla, njl. iteknoloji yobutyebi.
Intsimi yesicelo se-MBR membrane
Ngasekupheleni kwee-1990, i-membrane bioreactor (MBR) ingene kwinqanaba lesicelo esisebenzayo. Kule mihla, i-membrane bioreactors (MBR) isetyenziswa ngokubanzi kule mimandla ilandelayo:
1. Ukucocwa kogutyulo olusezidolophini kunye nokusetyenziswa kwakhona kwamanzi kwizakhiwo
Ngo-1967, indawo yokucocwa kwamanzi amdaka esebenzisa inkqubo ye-MBR yakhiwa yinkampani yase-United States, eyayicoca i-14m3/d yamanzi amdaka. Ngowe-1977, kwaphinda kwasetyenziswa inkqubo yogutyulo kwisakhiwo esiphakamileyo eJapan. Phakathi kwiminyaka yoo-1990, kwakukho izityalo ezinjalo ezingama-39 ezisebenza eJapan, ezinomthamo wonyango ukuya kuthi ga kwi-500m3 /d, kwaye ngaphezu kwe-100 izakhiwo eziphakamileyo ezisetyenziselwa i-MBR ukunyanga ilindle libuyele emanzini aphakathi.
2. Ukucocwa kwamanzi amdaka kwimizi-mveliso
Ukusukela ngeminyaka yoo-1990s, izinto zonyango lwe-MBR ziyaqhubeka nokwandisa, ukongeza kusetyenziso kwakhona lwamanzi, ukucocwa kogutyulo lwelindle, isicelo se-MBR kunyango lwamanzi amdaka kwimizi-mveliso luye lwaxhalabisa ngokubanzi, njengokuphathwa kwamanzi amdaka kushishino lokutya, ukusetyenzwa kwamanzi amdaka, amanzi amdaka aselwandle. , imveliso yezithambiso zamanzi amdaka, amanzi amdaka edayi, amanzi amdaka epetrochemical, afumene iziphumo ezilungileyo zonyango.
3. Ukucocwa kwamanzi okusela angcolisekileyo
Ngokusetyenziswa ngokubanzi kwesichumiso senitrogen kunye nezibulali zinambuzane kwezolimo, amanzi okusela nawo angcolisekile ngokwemigangatho eyahluka-hlukeneyo. Phakathi kwiminyaka yee-1990, inkampani yavelisa inkqubo ye-MBR kunye nemisebenzi yokususwa kwe-nitrogen ye-biological, i-adsorption ye-insecticide kunye nokususwa kwe-turbidity ngexesha elifanayo, ukuxinwa kwe-nitrogen kumanzi amdaka angaphantsi kwe-0.1mgNO2 / L, kwaye ukuxinwa kwe-pesticide kuncinci. ngaphezu kwe-0.02μg/L.
4. Ukucocwa kogutyulo lwelindle
Umxholo wezinto eziphilayo kwi-lindle ye-fecal iphezulu kakhulu, indlela yonyango ye-denitrification yendabuko ifuna ukugxilwa kwe-sludge ephezulu, kunye nokwahlula okuqinileyo-olwelo oluqinileyo aluzinzanga, oluchaphazela umphumo wonyango oluphezulu. Ukuvela kwe-MBR kusombulula le ngxaki kakuhle, kwaye kwenza kube lula ukunyanga ilindle elimdaka ngokuthe ngqo ngaphandle kokuhlanjululwa.
5. Itiphu/unyango lwe-leachate
Itiphu/umgquba ovundileyo uqulathe ukugcwala okuphezulu kongcoliseko, kwaye umgangatho wawo kunye nomthamo wamanzi uyahluka ngokweemeko zemozulu kunye neemeko zokusebenza. Itheknoloji ye-MBR yayisetyenziswe kwiindawo ezininzi zokucocwa kwamanzi amdaka ngaphambi ko-1994. Ngokudityaniswa kwe-MBR kunye ne-RO iteknoloji, kungekhona nje i-SS, i-organic matter kunye ne-nitrogen enokususwa, kodwa kunye neetyuwa kunye neentsimbi ezinzima zinokususwa ngokufanelekileyo. I-MBR isebenzisa umxube wendalo webhaktiriya ukwaphula ii-hydrocarbons kunye ne-chlorinated compounds kwi-leachate kwaye iphatha ungcoliseko kugxininiso oluphindwe ngama-50 ukuya kwi-100 ngaphezu kweeyunithi eziqhelekileyo zokucocwa kwamanzi amdaka. Isizathu salo mphumo wonyango kukuba i-MBR inokugcina ibhaktheriya efanelekileyo kakhulu kwaye ifikelele kwi-bacterial concentration ye-5000g / m2. Kuvavanyo lokulinga endle, i-COD yolwelo olungenisiweyo ngamakhulu aliqela ukuya kwi-40000mg/L, kwaye izinga lokususwa kwezinto ezingcolisayo lingaphezulu kwe-90%.
Ithemba lophuhliso lwe-MBR inwebu:
Iindawo eziphambili kunye nezalathiso zesicelo
A. Ukuphuculwa kweendawo zokucocwa kogutyulo lwelindle ezikhoyo ezidolophini, ingakumbi izityalo zamanzi ezinomgangatho wamanzi amdaka kunzima ukufikelela kuzo okanye ezithi ukuhamba kwazo kucocwe kwanda kakhulu kwaye indawo yazo ayinakwandiswa.
B. Iindawo zokuhlala ezingenayo inkqubo yothungelwano lwe-drainage, njengeendawo zokuhlala, iindawo zokungcebeleka, iindawo ezibukekayo, njl.
C. Iindawo okanye iindawo ezineemfuno zokuphinda zisetyenziswe kwakhona, njengeehotele, ukuhlamba iimoto, iinqwelo-moya zabakhweli, izindlu zangasese ezihambayo, njl. njl., zinika ukudlala ngokupheleleyo kwiimpawu ze-MBR, njengendawo yomgangatho omncinci, izixhobo ezidibeneyo, ukulawula ngokuzenzekelayo, ukuguquguquka kunye nokulula. .
D. Uxinzelelo oluphezulu, ityhefu, kunzima ukuthoba umgangatho wokucoca amanzi amdaka kwimizi-mveliso. Njengephepha, iswekile, utywala, isikhumba, iiasidi ezinamafutha enziweyo kunye namanye amashishini, yindawo eqhelekileyo yongcoliseko lomthombo. I-MBR inokunyanga ngokufanelekileyo amanzi amdaka angenako ukukhawulelana nomgangatho wenkqubo yonyango eqhelekileyo kwaye iqonde ukusetyenziswa kwakhona.
E. Itiphu yonyango evuzayo nokusetyenziswa kwakhona.
F. Ukusetyenziswa kwezityalo ezincinci zogutyulo (izikhululo). Iimpawu zeteknoloji ye-membrane zifanelekile kakhulu ukunyanga i-sewege encinci.
Inkqubo yeMembrane bioreactor (MBR) ibe yenye yeteknoloji entsha yokucocwa kwamanzi amdaka kunye nokusetyenziswa kwakhona kwamanzi amdaka ngenxa yomgangatho wawo wamanzi acocekileyo, acacileyo kwaye azinzile. Kwimigangatho yanamhlanje engqongqo yokusingqongileyo kwamanzi, i-MBR ibonise amandla ayo amakhulu ophuhliso, kwaye iya kuba lukhuphisana olomeleleyo lokuthatha indawo yobuchwepheshe bokucoca amanzi amdaka kwixesha elizayo.