一、概述由于要承担防止污染这项长期义务,因此今天铁路比以往更受法律约束。防止污染的一个重要方面是经济地清除和处理废油或重新利用废油。美国政府制订规章机构鉴于油价越来越高,要求在排出废水之前回收大部分废油。这样一来,铁路部门就势必要研究一些新的方法,以期尽可能地做到利用废油来满足部分油料需要。对于废油回收和重新利用来说,有几种方案可供铁路选择。本文对当前可行的一些 I. Overview Due to its long-term obligation to prevent pollution, the railway today is more legally bound than ever. An important aspect of pollution prevention is the economical removal and disposal of used oil or the reuse of used oil. The U.S. government has set regulatory bodies in the light of higher and higher oil prices, requiring the recovery of most of the used oil before the waste water is discharged. In this way, the railway department is bound to study some new methods, with a view to using as much as possible waste oil to meet some oil needs. For waste oil recovery and reuse, there are several options available for railways. This article is currently available for some