Dab tsi yog hom tshuaj kho dej?

Cov neeg ua haujlwm kho dej muaj xws li peb pawg ntawm cov khoom hauv qab no:
1. Cov tshuaj General: Ameslikas hais txog cov khoom siv tshuaj inorganic siv rau kev kho dej, xws li txhuas sulfate, sulfuric acid, sodium hydroxide, sulfuric acid, thiab lwm yam.
2. Cov tshuaj tshwj xeeb rau kev kho dej: ion txauv resin thiab cov organic dej kho tshuaj nrog rau cov pa roj carbon activated, inorganic polyaluminium chloride, organic flocculant, txiv qaub, alum, thiab lwm yam (xws li polyacrylamide, potassium acid acid, polyamine thiab polyquaternary ammonium ntsev), thiab lwm yam. .;
3. Formulated chemicals: suav nrog corrosion inhibitors, scale inhibitors, bactericides thiab combustion pab, thiab lwm yam.