Yuav ua li cas lub qhov rooj ntim khoom ntim sawv tawm hauv kev sib tw thiab hloov pauv kev lag luam niaj hnub no

Yuav ua li cas sawv tawm hauv kev ua lag luam niaj hnub no uas kev sib tw tau hnyav heev thiab txoj kev muag khoom tau hloov pauv tas li, cov tuam txhab ntxiv rau kev cia siab rau cov khoom lag luam hloov pauv tshiab thiab ua tau zoo, kev pabcuam nrawm kom yeej, pob tshab ntim tau ntau dua thiab tseem ceeb dua. Los ntawm kev ua lag luam pom, ntim khoom yog daim ntawv ntawm tag nrho cov khoom, yog ib feem tseem ceeb ntawm cov ntsiab lus, dhau los nws tuaj yeem ua rau cov neeg siv khoom muaj lub siab xav yuav, yog li txhawm rau txhawb kev siv. Nws tau raug pov thawj tias pob tshab ntim tau feem ntau tuaj yeem txhawb kev noj thiab tsim lub zog yuav khoom. Nws yog cov yas siv dav tshaj plaws hauv kev lag luam thiab lub neej. Nws yog feem ntau muab faib mus rau hauv ob hom: kev kub ceev polyethylene (HDPE) thiab tsawg ceev polyethylene (LDPE). PE tiv taus cov kua qaub thiab alkalinity. Piv nrog LDPE, HDPE muaj cov ntsiab lus melting ntau dua, tawv dua thiab tiv taus zoo dua rau cov kua xeb. Tam sim no, cov hnab yas thiab ntau lub ntsiab lus translucent lossis lub raj yas yas pom hauv khw yog yuav luag txhua yam ua los ntawm PE, xws li xab npum, tsuaj zawv plaub hau, ntxuav lub cev, siv roj, tshuaj tua kab ... Thiab ntxiv rau, feem ntau rau HDPE lub raj mis kom hnav . LDPE muaj nyob thoob plaws hauv lub neej niaj hnub no, tab sis tsis yog vim lub ntim nws' ua los ntawm, tab sis vim yog lub hnab yas koj pom txhua txhia qhov chaw. Feem ntau cov hnab yas thiab yas zaj duab xis yog ua los ntawm LDPE. Yog cov ntaub ntawv ntim khoom siv dav, tsis hais zaub, txiv hmab txiv ntoo lossis cov khoom siv niaj hnub, yog kev ntim cov hnab yas. Cov hnab yas kuj tseem siv rau hauv ntau lub ntim cov khaub ncaws, ntxiv rau daim ntaub, yuav luag txhua daim khaub ncaws uas tsim los ntawm cov tuam txhab tau ntim, cov khw muag khaub ncaws ua los ntawm cov khaub ncaws, tseem yooj yim dua, tsuas yog nrhiav lub hnab yooj yim los qhwv nws. Hauv kev sib sau ua ke, 25%yog siv hauv kev ntim khoom, yog li kev lag luam ntim yas yog ib qho tseem ceeb, ntim yas yog ib ntawm plaub yam khoom tseem ceeb hauv kev lag luam ntim khoom: ntawv thiab duab los qhia txog 30%, yas suav txog 25%, hlau suav txog 25%, iav suav txog 15%. Ob qhov saum toj no 25% qhia txog qhov tseem ceeb ntawm kev lag luam ntim yas. Txawm hais tias kev lag luam ntim yas tam sim no yog cov khoom ntim thib ob, qhov tseeb, cov nplaim tsis zoo li cov ntawv thiab cov ntawv thawv. Tab sis kev lag luam ntim yas raws li tus nqi 5% hauv ib xyoos hauv kev txhim kho, thiab lwm yam khoom ntim, suav nrog ntawv thiab ntawv los xij, hlau, iav, ceramic, paj rwb ramie loj hlob ntawm tus nqi ntawm 2%, tsuas yog rau ib hnub no ntim yas kev lag luam yuav dhau los ua thawj zaug ntau dua ntawv thiab ntawv ntim khoom ntim khoom.