Sawv ib leeg
Kev siv ib leeg, tus nqi siv siab, feem ntau hauv cov chaw pej xeem thiab tsev neeg.
Categorical formula
Muaj peb hom, recyclable, non recyclable thiab tshuaj lom. (1) Cov khoom siv rov ua dua tau hais txog cov khoom pov tseg uas tsim nyog rau kev rov ua dua tshiab thiab siv cov peev txheej.
Nws feem ntau suav nrog:
Daim ntawv: ntawv sau, ntim ntawv thiab lwm yam khoom siv uas tsis muaj kab mob hnyav. Xws li cov ntawv xov xwm, txhua yam ntawm cov ntawv ntim, ntawv ua haujlwm, ntawv tshaj tawm, thiab lwm yam.
Yas: khib nyiab ntim yas, ntim yas thiab lwm yam khoom yas. Xws li cov hnab yas, lub raj mis yas, cov yas foamed, cov hnab yas pov tseg thiab cov tais diav, cov yas tawv, thiab lwm yam.
Hlau: ntau hom khoom seem hlau. Xws li cov kaus poom pop, tin poom, txhuas tshuaj txhuam hniav npog, thiab lwm yam.
Iav: Cov khoom siv iav tsis muaj xim thiab tsis muaj xim.
Npuag: Siv textile khaub ncaws thiab khoom siv textile.
(2) Cov khoom siv uas tsis tuaj yeem rov ua dua yog hais txog cov khib nyiab uas tsis yog cov khib nyiab rov ua dua. Cov khib nyiab ntau yog yooj yim decomposed nyob rau hauv tej yam ntuj tso tej yam kev mob, xws li daim tawv nqaij, zaub nplooj, zaub mov seem, paj, ceg thiab nplooj.
(3) Cov tshuaj lom, xws li cov roj teeb khib nyiab, khib nyiab fluorescent, mercury thermometers, khib nyiab xim, cov tshuaj siv tas sij hawm, thiab lwm yam.
