针对垃圾围城的趋势越来越严重，从垃圾回收的意义出发，指出了垃圾分类回收的意义，对可回收利用的垃圾进行分类，引出垃圾分类回收利用的方法，同时结合乌当区目前正在运行的污水处理厂产生的污泥，提出了探讨性的解决措施，以缓解用地紧张问题。%As the trend of garbage-siege is more and more serious ,this article starts from the significance of garbage collection to discuss the significance of garbage classification .Through the classification of recyclable garbage ,the article leads to recovery methods of garbage .In addition ,combining with the sludge which is produced by the sewage treatment plant in Wudang district ,the article proposes some possible countermeasure to relieve the tension caused by shortage of land .
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