CAJ | 학술논문

近些年随着造纸行业的产能集中，污水治理技术也逐渐成熟，碱回收工段内的电厂、锅炉以及水泥窑等排放的尾气，尤其是涉及燃煤的烟气治理问题逐渐成为新课题，控制氮氧化物更是势在必行。国家环境保护“十二五”规划中将氮氧化物纳入总量控制指标体系，加大对二氧化氮减排力度，改善大气环境质量。目前对氮氧化物的控制尚处于试点和起步阶段，国家政策的重点是固定源如发电厂、工业锅炉、水泥窑等烟气脱硝治理。针对目前应用较广泛的烟气脱硝技术SCR、SNCR和SNCR-SCR联合脱硝法，着重介绍了SCR脱硝技术。
근사년수착조지행업적산능집중，오수치리기술야축점성숙，감회수공단내적전엄、과로이급수니요등배방적미기，우기시섭급연매적연기치리문제축점성위신과제，공제담양화물경시세재필행。국가배경보호“십이오”규화중장담양화물납입총량공제지표체계，가대대이양화담감배력도，개선대기배경질량。목전대담양화물적공제상처우시점화기보계단，국가정책적중점시고정원여발전엄、공업과로、수니요등연기탈초치리。침대목전응용교엄범적연기탈초기술SCR、SNCR화SNCR-SCR연합탈초법，착중개소료SCR탈초기술。
In recent years, with the concentration of productivity in pulp and paper industry, technology of sewage treatment has been getting mature gradually, meanwhile off-gas emission from boilers in power plant of alkali recovery and cement kiln, especially the lfue gas treatment related to coal-ifred has becomes a new subject to study, nitrogen oxides has become imperative to be controlled. According to the plan of national environment protection in 12th Five-year Plan (2011-2015) period, nitrogen oxides content has been included in control system to reduce the emission of nitrogen dioxide and improve the quality of atmospheric environment. Furthermore, nitrogen oxides control is still at the phases of test and starting-up in present, the key point of national policy will be based on lfue gas denitrification of regular sources, such as power plant, industrial boilers, cement kiln, etc. Aiming at the fuel gas denitriifcation technologies widely used at present, such as SCR, SNCR and SNCR-SCR combined technologies, in this article was focused on the introduction of SCR denitriifcation technology.