Biofuels yog ib qho ntawm lwm txoj hauv kev hloov kho lub zog. Nws tuaj yeem tsim los ntawm yuav luag txhua yam ntawm cov organic pov tseg, txawm quav. Biofuels, muaj li ntawm methane thiab carbon dioxide, yog tsim los ntawm cov kab mob uas ua kom cov organic pov tseg nyob rau hauv cov kev mob uas tsis zoo.
Biofuels yog cov phooj ywg ib puag ncig, lawv tsis nce "tsev cog khoom" thiab muaj qhov tsim nyog hloov chaw rau kev tsim ua cov nkev, uas yog cov khoom pov tseg thiab kev puas tsuaj rau cov cua. Kev siv hluav taws xob rau biofuels suav nrog lub zog hluav taws xob, cua sov, ua noj thiab chav nyob.
1. Ua ib gruel los ntawm qhov sib npaug hnyav sib xyaw los ntawm cov ntaub ntawv raw organic thiab dej. Ncuav cov khoom nyoos mus rau hauv ib lub thoob thiab hnyav. Txhaws cov thib ob nrog dej kom txog rau thaum nws qhov sib npaug sib npaug nrog qhov loj ntawm thawj thoob. Sib tov cov ntaub ntawv raw thiab dej kom txog thaum tus.
2. Muab cov slurry tso rau hauv chav zom ntawm lub xyoob ntoo tsob ntoo. Ntxiv cov noob (cov khoom seem biowaste) hauv qhov ntau npaum li 2 zaug ntawm cov khoom siv raw. Piv txwv li, yog tias cov khoom siv raw tau sau lub thoob kom txog thaum kawg, koj yuav xav tau 2 lub pob noob.
3. Ntsuas cov pH ntawm cov slurry hauv chav fermentation siv cov khoom tshwj xeeb. Rau cov kab mob anaerobic ua haujlwm zoo, ib puag ncig yuav tsum muaj me ntsis alkaline. Qhov nruab nrab pH yog 7.0, txhua yam hauv qab nws yog acidic, txhua yam saum toj no yog alkaline. Kho cov pH los ntawm kev ntxiv dej lossis maj mam ntxiv cov kua qaub me kom txog thaum nws mus txog qhov koj xav tau pH. Soj ntsuam thiab, yog tias tsim nyog, kho cov pH thaum lub sijhawm siv nyob rau hauv kev teeb tsa, lossis thaum lub sijhawm sijhawm biofuel tsim tawm los ntawm kev hais tawm.
4. Siv tus pas ntsuas kub los ntsuas qhov ntsuas kub ntawm cov pa slurry. Qhov zoo tshaj kub yog 30-40 ° C nyob rau hauv chav ua kom haum, txij li ntawm qhov kub no cov kab mob anaerobic feem ntau dhia. Yog tias qhov ntsuas kub qis dhau, siv cov khoom siv cua kub me me, xws li lub rhaub chav, lossis, yog tias koj nyob hauv huab cua sov, khawb ib lub qhov hauv av, kab nws nrog kab xev, thiab muab cov fermentation chamber tso rau hauv lub qhov. Saib xyuas thiab, yog tias tsim nyog, kho qhov kub thaum lub sij hawm tsim khoom siv biofuel.
5. Caws los sis co cov slurry tsawg kawg ib zaug ib hnub nyob rau hauv kev siv biofuel. Lub sijhawm no nyob ntawm qee yam tseem ceeb, xws li kub thiab sib xyaw ua ke ntawm cov slurry, tab sis feem ntau nws txawv ntawm 2 txog 4 lub lim tiam.
