Today, I will summarize some typical questions you left in the background messages.

Someone asks: Can reverse osmosis membrane remove lead?

Answer: Normal qualified RO membrane can remove about 95%-99% of lead.

Someone asks: Can reverse osmosis membrane remove nitrates?

Answer: RO can remove nitrates in drinking water very well, about 85%-95% under normal working condition.

Someone asks: Can reverse osmosis membrane remove arsenic?

Answer: RO works very well for pentavalent arsenic, removal rate 95%~99%. But for trivalent arsenic, the effect is not good, only about 30%~80%. If we want higher removal rate, we need to do oxidation first, change trivalent arsenic to pentavalent arsenic, then the effect will become much better.

Okay! That's all for today. Welcome to XBYMC anytime. See you next time!