灰色关联在城市生活垃圾处理方案优选中的应用

根据城市生活垃圾和其处理技术的特点,运用灰色关联法建立数学模型,并应用于南方某城市生活垃圾处理方案的优选。该城市2020年的预计生活垃圾产生情况:总人口为131.5万,生活垃圾产生量为1404.5 t/d,其中可回收垃圾量为483.5 t/d。拟采用备选方案:方案1为卫生填埋;方案2为分类资源化,可回收垃圾回收,不可回收垃圾卫生填埋;方案3为分类资源化,可回收垃圾回收,不可回收垃圾焚烧。通过灰色关联模型计算,求得灰色关联度ε2>ε3>ε1。结果表明,方案2为该城市生活垃圾处理的最佳方案;表明灰色关联法简易可行,利用其得出的结论具有一定的参考价值。

APPLICATION OF GREY CORRELATION IN OPTIMIZING SCHEMES FOR MUNICIPAL SOLID WASTE TREATMENT

According to the character of municipal solid waste,a mathematical model was set up with gray correlation,which was applied in optimizing the schemes of municipal solid waste disposal.The city in 2020 is expected to be in a situation as follows: the total population of 1.315 million,the amount of garbage will be 1,404.5 t / d,of which 483.5 t being the recyclable waste;The proposed options are as follows: option 1,sanitary landfill;option 2,classification of resources and recyclable garbage collection,and non-recyclable waste for sanitary landfill;option 3,classification resource,collecting recyclable garbage,incineration of non-recyclable garbage.Calculated by gray correlation model,the correlation degree ε2 > ε3 > ε1 is got.The results show that option 2 is the best solution for municipal solid waste disposal,grey association is simple and practicable,whose conclusion can be a valuable reference.