Dab tsi ntawm cov khoom siv dej khib nyiab yog muaj?

Muaj ntau hom neeg siv khoom siv pov tseg cov cuab yeej siv hluav taws xob, suav nrog tab sis tsis txwv rau cov khoom siv lim dej, thiab lwm yam cov khoom siv hluav taws xob ua haujlwm raws li cov dej khib nyiab. Piv txwv li, txheej txheej txheej txheej txheej ceev tau los kho cov khoom siv lim dej kom haum, thaum lub sij hawm kev kho cov tshuaj lim dej ntau dua rau cov khoom siv lim dej ntau dua rau cov khoom siv hauv tsev lossis cov dej khib nyiab. Nyob rau hauv cov nqe lus ntawm tus nqi, tus nqi ntawm cov khoom siv wastewater kom muaj kev txawv nyob ntawm cov khoom xws li hom, feem ntau muaj peev xwm los ntawm 10,000 yuan los kaum txhiab leej ntawm Yuan.