Izinkomo zikhiqiza i-methane engakanani?

i-methane igesi

Abantu abaningi bayazibuza ukuthi izinkomo ze-methane zikhiqiza malini. Okuningi kokungcoliswa kwemvelo kusekelwe ekukhishweni kwe-carbon dioxide kanye ne-methane. Lawa magesi yizona zimbangela eziyinhloko zokwanda komphumela we-greenhouse. Izinkomo zibhekene nengxenye enkulu yokukhishwa kwe-methane.

Ngakho-ke, kulesi sihloko sizokutshela ingakanani i-methane ekhiqizwa yizinkomo nokuthi inamiphi imiphumela emvelweni.

Izinkomo zikhiqiza i-methane engakanani?

izinkomo kanye negesi ye-methane

Mayelana nokukhishwa kwe-methane, izinkomo zinikela ngama-5% yenani eliphelele elikhishelwe emvelweni. Uma imboni yemfuyo ibhekwa njengephelele, ibhekene ne-18% yalokhu kukhishwa. Kulo mkhakha, izinkomo zenza ama-40% amagesi abamba ukushisa akhishwayo. Kubalulekile ukuqaphela ukuthi igesi ekhishwa izinkomo ayiyona i-carbon dioxide (CO2), kodwa i-methane (CH4). Kodwa-ke, umphakathi wesayensi ukala umthelela wawo endaweni ezungezile ngokulingana kwe-CO2 ukuze kuqondwe kangcono.

Ukukhishwa kwe-methane okuvela ezinkomeni kwenzeka ngokuyinhloko ngokubhodla kwazo hhayi ukuqunjelwa, ngokuphambene nenkolelo evamile. Lokhu kukhiqizwa kwe-methane kuwumphumela wesici senqubo yokugaya i-anaerobic yalezi zilwane. Ukuze unikeze imininingwane eyengeziwe, Izinkomo zinamandla okukhiqiza cishe amalitha angu-300 e-methane ngosuku, okulingana namakhilogremu angu-120 e-methane ngonyaka.

Kwenzeka kanjani lokhu kukhishelwa futhi iyiphi inqubo ewumsuka ngemuva kwakho?

I-Enteric fermentation yinqubo izinkomo ezikhiqiza ngayo i-methane. Amagciwane enza kube lula ukubola nokuvutshelwa kwezinto zezitshalo ezidliwa izilwane, okuholela ekukhiqizweni kwe-methane. Ukuze unciphise ingcindezi ebangelwa ukukhiqizwa kwegesi, izinkomo ziyayikhulula ngokubhodla.. Lokhu kuchitha umbono oyiphutha wokuthi i-methane ikhishwa nge-flatulence.

Esikhundleni salokho, idluliselwa ohlelweni lokuphefumula futhi ikhishwe ngokukhipha umoya. Ngaphezu kwalokho, i-methane ikhishwa ngomquba namachweba aqukethe imfucumfucu yalezi zilwane, kanye nezindawo ezingaphansi komhlaba ezithola amanzi emapulazini ezinkomo.

Yiziphi ukusetshenziswa kwegesi ye-methane ekhiqizwa izinkomo?

Igesi ye-methane ekhishwa izinkomo ayikwazi ukusetshenziswa, kodwa igesi ye-methane etholakala emqubeni wazo ingasetshenziswa, njengoba sizohlola kamuva. Yize kube nemizamo yokusebenzisa leli gesi ngqo, okwamanje akwenzeki. Nokho, Imizamo igxile ekuthuthukisweni kwezifihla-buso eziguqula i-methane ibe yi-CO2, igesi ehambisana nemvelo elwa nomthelela we-greenhouse., kanye nasekwakheni ukudla kwezilwane okunciphisa ukukhishwa kwe-methane.

Lezi zimaski zisebenza ngendlela efanayo neziguquli ze-catalytic ezitholakala ezimotweni, ngesihlungi esimuncayo esithwebula i-methane ekhishwe emakhaleni esilwane. Uma isihlungi sifinyelela umthamo waso wokubamba i-methane, kwenzeka ukusabela kwamakhemikhali okuguqula i-methane evalelekile ibe yi-CO2 bese iyikhiphela emkhathini.

Ngamunye wethu angakwazi kanjani ukufaka isandla ekwehliseni lokhu kukhishelwa?

izinkomo zegesi ye-methane

Ukuze kuxazululwe le nkinga emnyombweni wayo, isinyathelo sokuqala nesibaluleke kakhulu sizobandakanya ukuqaliswa kwemithethonqubo mayelana nokusetshenziswa kwenyama, ubisi kanye nemikhiqizo yayo. Yisintu esibhekene ngokuyinhloko nokukhishwa kwe-methane yizinkomo. Ukudla okulahliwe sekudlule kukho konke ukulungiselwa, okuthi, endabeni yokulima imfuyo, kube nomthelela ekukhishweni kwamagesi abamba ukushisa amaningi.

Ngakho-ke, kubalulekile ukuba nolwazi lokuthenga unolwazi, ukusebenzisa ukudla esikuthenga ngaphandle kokumosha, futhi silwele ukulinganisela ekudleni kwethu. Ngale ndlela singenza umzamo wokunciphisa, ngezinga elithile, ukusetshenziswa kwemikhiqizo etholakala kulezi zilwane.

Umbono wokubeka intela emapulazini emfuyo uhlongozwe emazweni amaningana, kuhlanganise nemiphakathi ethile yaseSpain Autonomous, njengendlela yokulawula ubukhulu bala mapulazi. Uhlelo luwukudlulisa izindleko zentela kumthengi wokugcina, ngaleyo ndlela kuthuthukiswe ukuzilawula. Kodwa-ke, sikholelwa ukuthi le ndlela yokwenza futhi ayinabo ubulungiswa nakubafuyi bemfuyo. Inqobo nje uma kunabantu abangakwazi ukukhokha amanani aphezulu ngenxa yentela eyengeziwe, Sizoqhubekisela phambili uhlelo kuphela futhi sibambe iqhaza kumphumela we-greenhouse.

Umnikelo wethu ubandakanya ukusebenzisa amapulazi emfuyo ukuze kukhiqizwe i-biomethane noma i-biogas, umthombo wamandla ovuselelekayo osuselwe ekuboleni kwezinto eziphilayo, ikakhulukazi umquba.

Ukukhiqizwa kwale ngxube kwenzeka lapho amagciwane ebola ama-substrates e-organic ngaphandle kokuba khona komoya-mpilo, inqubo ebizwa ngokuthi i-anaerobic digestion. Yakhiwe ngamagesi amaningana, kuhlanganise i-methane (CH4), i-carbon dioxide (CO2), umhwamuko wamanzi (H2O), i-hydrogen (H2), i-nitrogen (N2), i-oxygen (O2) ne-hydrogen sulfide (H2S).

Ngenqubo yokugaya i-anaerobic, kukhiqizwa ama-byproducts amabili ayinhloko. Okokuqala kukhona ukukhiqizwa kwe-biogas, okuwumthombo wamandla obalulekile. Okwesibili, ukwakheka kokugaya kwenzeka, insalela ewuketshezi oluqinile ehlala ngaphakathi kwe-digester. Lokhu kugaya kunezinto ezizuzisayo zokuvundisa, okuyenza ibe insiza ekahle yokusetshenziswa emisebenzini yezolimo.

Inqubo "yokuthuthukisa" i-biogas, eyaziwa ngokuthi i-biomethane, iyenza ifanelekele ukusetshenziswa kumapayipi egesi amanje. Le biomethane ingasetshenziswa kuzo zonke izinhlelo zokusebenza nengqalasizinda okwamanje encike kwigesi yemvelo. Elinye igama lale nqubo i-H2 methanation.

Ukuthuthukiswa kwe-Biogas

isitoreji segesi ye-methane

Inqubo eyaziwa ngokuthi ukuhlanza i-biogas noma “ukuthuthukisa” ibandakanya izinyathelo ezimbili eziyinhloko: ukukhulisa ukugcwala kwe-methane nokukhipha amagesi angafuneki. Kunobuchwepheshe obuningi obutholakalayo kule nqubo, obufana nolwelwesi, i-PSA nama-amine. Lobu buchwepheshe buvumela ukukhiqizwa kwe-biomethane, igesi ehlangabezana nezindinganiso zekhwalithi ezibekwe umthetho (ngokuqondile, i-PD-01), edinga okuqukethwe kwe-methane okungenani okungama-90%.

Ukusebenzisa imfucuza yenkomo akusizi nje kuphela ukunciphisa ukukhishwa kwe-CO2 kodwa futhi kunikeza insiza ebalulekile. Umbiko wakamuva we-SEDIGAS E-Spain, amandla amakhulu okukhiqizwa kwe-biomethane avelele, alinganisela ku-137 TWh/ngonyaka. Leli zinga lokukhiqiza linganelisa kalula zonke izidingo zokusetshenziswa kwasekhaya. Umbiko uphinde uphakamise ukuthi ukwakhiwa kwezitshalo ze-biomethane ezingu-2.326 kuzodingeka ukuze kusetshenziswe ngokugcwele leli khono, kusetshenziswe ngempumelelo kabusha imfucuza ebikade ingasetshenziswa.

Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana nokuthi izinkomo ze-methane zikhiqiza kangakanani kanye nemiphumela yazo.


Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe. Ezidingekayo ibhalwe nge *

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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.