城市生活垃圾半好氧生物反应器填埋技术试验研究

Advantages of semi-aerobic bioreactor landfill of municipal solid wastes

对城市生活垃圾半好氧生物反应器填埋技术与传统垃圾填埋技术进行了对比试验,由试验结果可知,半好氧生物反应器填埋技术可缩短填埋垃圾产酸时间,净化渗滤液,加速填埋垃圾稳定化进程。城市生活垃圾半好氧生物反应器填埋技术是中国中小城市垃圾填埋处理的发展方向。

Pilot scale field experiments were conducted to compare the performance of a semi-aerobic bioreactor landfill with a traditional landfill for disposal of municipal solid wastes（MSW）. Results from the 8-month study have demonstrated that the bioreactor landfill resulted in more stabilized MSW（greater reduction in volatile content, higher pH, and earlier methane production） as well as a more biodegradable （higher BOD/COD ratio） and higher quality （much lower in BOD,COD, NH3-N） leachate which may be dischargeable when proper dilution is available. Although the bioreactor landfill is more costly and labor intensive,it is still attractive for disposal of MSW in many midsize cities in China.