Dab tsi yog lub luag haujlwm tsav ntawm lub khob khob kev lag luam?

Lub luag haujlwm tsav tsheb ntawm daim ntawv khob kev lag luam yuav ua rau muaj kev tsis sib haum xeeb tseem ceeb. Cov khoom tseem ceeb ntawm cov ntawv khob yog ntawv, thiab cov khoom siv raw rau ntawv yog ntoo thiab xyoob. Ntau tus neeg tsis tuaj yeem pab tab sis tsa kev tawm tsam rau qhov no. Yog tias kev lag luam ntawm cov ntawv khob raug tsim los ntawm qhov loj, nws yuav ua rau muaj kev noj qab haus huv tseem ceeb ntawm cov ntoo, cov khoom siv pov tseg, thiab kev puas tsuaj rau ib puag ncig ecological. Lub tswv yim no yog to taub, tej zaum yog vim qhov kev xav tsis zoo uas tau tso tseg los ntawm cov xwm txheej yav dhau los ntawm kev puas tsuaj ntawm hav zoov tsis zoo. Txawm li cas los xij, qhov tshwm sim tam sim no ntawm kev txiav txim siab tsis ncaj ncees tau raug tswj kom zoo raws li cov cai nruj thiab cov cai hauv tebchaws. Tam sim no, ntoo raw cov ntaub ntawv uas peb siv yog tsim nyog npaj thiab yuav txiav down los ntawm artificially regenerated forests, uas yog economic kev loj hlob ntoo uas yuav siv tau raws li tsim nyog. Yog li ntawv khob kev lag luam yuav tsuas yog tsav txoj kev loj hlob ntawm kev lag luam muaj feem xyuam. Tsuav nws raug tswj kom tsim nyog, qhov tshwm sim ntawm kev puas tsuaj tsis zoo ntawm ib puag ncig ecological uas tib neeg txhawj xeeb txog yuav tsis tshwm sim.

Daim ntawv thov cov khob ntawv tsis yog rau cov dej haus xwb, vim tias cov khob ntawv sawv cev rau ib hom ntawv uas muab cov cuab yeej ceev, yooj yim, tu cev thiab ib puag ncig zoo. Nws cov txheej txheem yuav tsum tau ua thiab qhov zoo ntawm nws tus kheej sawv cev rau cov kev xav tau ntawm ib pawg ntawm cov khoom siv hauv tsev. Nyob rau hauv cov nqe lus ntawm ntau yam kev faib tawm ntawm cov ntawv khob lawv tus kheej, muaj ntau yam muaj feem xyuam nrog, xws li kev tshaj tawm khob, khob ob-txheej, corrugated khob, khob haus dej txias, khob kas fes, khob conical, zais tshuaj yej khob, thiab lwm yam. Kev tu cev thiab ib puag ncig. kev phooj ywg ntawm cov khoom siv ntawv yuav ua rau cov neeg siv khoom muaj kev ntseeg siab hauv cov khoom noj, yog li ua rau lawv xav tau cov khoom noj thiab ua kom muaj kev loj hlob ntawm ntau yam kev lag luam.

Tam sim no, kev ntim khoom noj ceev ntau dua tau tawg los ntawm kev txwv ntawm cov khoom yas ntshiab, nrog rau feem ntau yog KFC, McDonald's, thiab lwm yam khoom ntim khoom noj ceev zoo sib xws. Ntau cov khoom siv tu cev thiab khoom noj khoom haus tau maj mam nkag mus rau tib neeg lub neej, muab txoj hauv kev sai thiab yooj yim dua rau tib neeg cov kev xav tau hauv ntau thiab ntau txoj haujlwm. Qhov no tseem yog lub luag haujlwm tseem ceeb los tsav kev lag luam catering mus rau kev coj noj coj ua zoo dua thiab noj qab haus huv. Tib neeg tseem yuav muab cov tswv yim muaj tswv yim thiab ua haujlwm ntau dua rau hauv daim ntawv los nrhiav kev txhim kho siab dua.

Thawj qhov kev lag luam uas tau tsav los ntawm cov khob ntawv yog kev lag luam ntawv, vim tias cov khoom tseem ceeb ntawm cov khob ntawv yog ntawv. Txawm hais tias cov ntoo tam sim no nyob rau theem kev npaj thiab siv, kev txhim kho qhov kev siv cov ntoo siab hauv papermaking thiab nrhiav lwm txoj hauv kev rau ntawv kuj tseem muaj cov ncauj lus tshawb fawb. Tib neeg kev txhawj xeeb rau ib puag ncig ecological kuj txhawb kev tshawb fawb txog kev rov ua dua tshiab thiab siv cov khoom siv ntawv.

Lwm cov khoom siv raw rau khob ntawv yog cov ntawv coated hauv tsev, PLA coated ntawv, thiab cov ntawv PE coated tuaj. PE laminating yog txheej txheem ntawm kev thov ib txheej ntawm PE (polyethylene) zaj duab xis rau hauv daim ntawv siv lub tshuab laminating; Cov lus piav qhia rau PLA yog: polylactic acid fiber (pob kws fiber ntau); PLA; Polylactic acid fiber ntau yog biodegradable hluavtaws fiber ntau uas tuaj yeem tau txais los ntawm cov nplej. Tom qab muab pov tseg, nws cov khoom tuaj yeem decomposed rau hauv carbon dioxide thiab dej los ntawm microbial nkaus hauv av lossis dej hiav txwv. Thaum kub hnyiab, nws tsis tawm cov pa phem los yog ua rau lwm cov pa phem, ua rau nws muaj kev ruaj ntseg ecological fiber; Ib qho lactic acid molecule muaj ib pawg hydroxyl thiab ib pawg carboxyl. Thaum muaj ntau yam lactic acid molecules sib xyaw ua ke, - OH ua rau lub cev qhuav dej nrog - COOH ntawm lwm cov molecules, thiab - COOH ua rau lub cev qhuav dej nrog - OH ntawm lwm cov molecules. Lub resulting polymer yog hu ua polylactic acid. Polylactic acid, tseem hu ua polylactide, belongs rau tsev neeg polyester. Polylactic acid yog cov khoom siv polymer tau los ntawm polymerizing lactic acid ua cov khoom siv tseem ceeb, uas muaj peev xwm txaus thiab tuaj yeem rov tsim dua tshiab. Nyob rau hauv kev teb rau cov kev cai tshwj xeeb ntawm ib puag ncig kev phooj ywg thiab kev nyiam huv ntawm daim ntawv khob, nws yuav tsum tau txuas ntxiv txhawb txoj kev loj hlob ntawm PLA thiab PE thev naus laus zis hauv kev coj ua siab dua. Qhov zoo ntawm cov zaub mov nws tus kheej yuav tsum tau ua tib zoo saib, tab sis qhov zoo ntawm cov tais diav uas siv rau kev noj thiab haus kuj yuav tsum tau muab kev sib npaug.

Tam sim no, ntau lub tsev tshawb fawb tau txuas ntxiv txhim kho lawv cov thev naus laus zis biodegradation kom ua tau raws li qhov yuav tsum tau ua ntawm daim ntawv khob kev huv huv. Txoj kev loj hlob ntawm cov thev naus laus zis no tsis yog tsuas yog tso cov kev cai tshiab rau kev nyiam huv ntawm daim ntawv khob, tab sis kuj tseem ua rau muaj kev cuam tshuam rau kev loj hlob ntawm kev lag luam.

Cov khob ntawv tsis zoo tag nrho, thiab lawv cov teeb meem ib puag ncig ntsib kev xav tau ntau dua. Tab sis feem ntau, peb tsis nrhiav kev ciaj sia los ntawm kev zam cov teeb meem, tab sis los ntawm kev nrhiav kev txhim kho nyob rau hauv lub siab ntawm kev daws teeb meem. Qhov no yog qhov tseeb tsav lub zog tom qab kev txhim kho cov khoom tsim tau. Nws yog qhov tseeb vim qhov yooj yim thiab ceev ntawm daim ntawv khob lawv tus kheej thiab lub peev xwm rau kev txhim kho hauv kev lag luam khob ntawv uas peb muaj ntau dua thiab kev txhim kho zoo dua rau yav tom ntej.