Dear member!
Where can I find the good articel about coal-fired power plant polution control system? Or else do you guys have any idea about this topic?

Have you looked on the US department of energy web site?

http://www.fossil.energy.gov/programs/powersystems/pollutioncontrols/

Some other links that may help you

http://www.cleartheair.org/proactive/newsroom/release.vtml?id=17320

I'm not sure how you get access to this without paying a ton of money

http://www.bccresearch.com/egy/EGY030A.asp
and
http://www.bccresearch.com/print/egy_p/EGY030A_print.html

Maybe your library has a license?

The Sierra Club : http://www.sierraclub.org/cleanair/factsheets/power.asp

Thanks! It's help me a lot.