白泥对填埋场垃圾降解的影响实验研究

在4个相同的密封聚乙烯塑料罐中，分别装填相同组分和重量的青岛市居民区的生活垃圾，并且在4个罐中按不同比例添加白泥，与垃圾混合均匀。实验模拟填埋场的环境条件。定期监测4个罐渗滤液的水质变化，分析比较白泥的添加及添加量的多少对渗滤液的衰减的影响。实验结果表明，白泥的添加能够向反应系统提供一定数量的碱度，可以防止反应系统因出现酸过度累积而受到抑制，在一定程度上加快了垃圾的降解进程。这不仅对于减轻渗滤液处理设施的负荷、加速填埋场的稳定化起着积极作用，而且可以为白泥的资源化利用提供一个可行的途径。

Impact of alkaline slag on the refuse degradation

Four identical hermetic barrels made of polythene were prepared, and equal quantity of municipal solid waste (MSW) of Qingdao which had the same component was put into those four barrels mixed with different ratio of alkaline slag. By simulating the condition of landfill , several parameters of leachate in these four barrels were analysed at interval. According to the experimental results, the alkaline slag can provide alkalinity necessary for the reaction system to avoid the state of superacid and accelerate the degradation of refuse to a certain extent. It is significative to accelerate the stabilization of landfill and alleviate the load of the treatment facilities of leachate, furthermore it provides a feasible way to utilize the alkaline slag.