On July 31, 2013 , environmental protection office experts group of Gansu province according the site check considered the SNCR comprehensive gas denitration efficiency of Pingliang Conch over 70%  and NOx emission concentrations in 300mg/ Nm3.It fits the national energy conservation and emission reduction standard. Experts group unanimous voted the flue gas denitration project of Pingliang Conch 2 X4500t/d cement clinker production line past the acceptance.(translator:Chenwen)

 The Site Of Environmental Protection Acceptance Review