问题 问答题 简答题

油罐清罐如何做好环保工作?

答案

参考答案:

①制定工艺环保处理方案并报环保科批准。

②将罐内油品尽量抽空,以脱水口无油为最佳。

③视油罐基础倾斜程度垫水20至50cm。

④再将罐内带油存水倒至其它油罐。

⑤将油罐与其它系统加盲板隔绝。

⑥打开透光孔,捡尺孔,从罐底用蒸汽蒸罐。

⑦蒸罐后采样分析,分析合格后打开人孔。

⑧人员进罐水冲洗前必须分析O2、CO、H2S含量严禁单人进罐,罐外应有专人监护。

⑨清罐冲水前必须通知环保科及水处理车间。

⑩清罐清出的铁锈、杂物、油泥应及时拉出厂外按规定填埋。

阅读理解

Beijing, Shanghai, Guangzhou and other big cities are exciting places to live. There are many interesting things to see and to do. You can go to different kinds of museums, plays and movies. You can also go to supermarkets to buy things from all over the world. But there are serious problems in big cities, too. The cost of living is high, and there are too many people in some big cities. Every year many people move to the cities because there are more chances to find jobs, to study at good schools, and to receive good medical care. But sometimes these people cannot find work or a good place to live. Also, too many people in a small space make it hard to keep the cities safe and clean.

Some people enjoy living in big cities. Others do not. Before people move to big cities, they should think about the problems of living there.

小题1:In big cities people can                                .

A.find jobs more easily

B.study at good schools

C.receive good medical care

D.A, B and C小题2:According to the passage, big cities                                  .

A.are not exciting places to live

B.have not many serious problems

C.are terrible

D.are not always clean and safe enough小题3:In this passage the writer tells us                            .

A.to move to a big city

B.not to move to a big city

C.not to move to a big city without thinking about the problems there

D.not to think too much about the problems before moving to a big city小题4:Which is NOT mentioned in the passage?

A.Beijing, Shanghai and Guangzhou are all big cities.

B.Some people enjoy living in big cities.

C.People have more chances to find jobs in big cities.

D.Big cities are not as good as small cities.小题5:Which is the best title for the passage?

A.Exciting Places to live

B.Serious Problems in Big Cities

C.Big Cities

D.Chances to Find Jobs

单项选择题