Cov khoom siv yog siv rau hauv kev kho mob effluent, dej ntshiab, boiler dej, dej saum npoo av, electroplate, hluav taws xob, tshuaj lom neeg kev lag luam, tsev muag tshuaj, cov txheej txheem tsim khoom noj, kev saib xyuas ib puag ncig, dej haus, fermentation thiab lwm yam.