问题 问答题


危险废物焚烧处置方法是一种高温热处理技术,即以一定的过剩空气与被处置的危险废物在焚烧炉内进行氧化燃烧反应,废物中的有毒、有害物质在高温下氧化、分解而被破坏。焚烧法不但可以处置固态废物,还可以处置液态或气态废物,并且通过残渣熔融使金属元素稳定化。某地建设一危险废物焚烧厂,该焚烧厂选址时按照相应规定没有建在地表水环境质量工类和环境空气质量Ⅰ类功能区,焚烧厂建设在居民区主导风向的上风向地区。焚烧的废物为医院临床废物,焚烧量为250 kg/h。该废物焚烧炉在焚烧过程中会产生二恶英等污染物质。
根据以上内容,回答以下问题。

该废物焚烧炉的焚烧量为250kg/h,则排气筒最低允许高度应设置多少

答案

参考答案:

解析:该焚烧炉焚烧的是医院临床废物,按照《危险废物焚烧污染控制标准》(GB 18484— 2001)中规定,焚烧炉排气筒最低允许高度为20m。

阅读理解

阅读理解。

Dear readers,

      Imagine a little girl who knows there will not be enough food for dinner, who can't fill her stomach with

water because it's polluted (被污染), and who has watched lives slipped away (消失) from her father, little

brother and sister because the family is too poor to see a doctor. She would gladly walk miles to school, but her

mother needs her badly (非常) at home. What will her future be?

     Is it hard to believe? For Maria Pestora, it is real life.

     But with just 52 pennies a day, you can sponsor (资助) a child like Maria. Through "Save the Children", you

can help Maria's mother get the tools and ways she needs to turn their poor food into a good dinner, and get the

money she needs to buy clothes and school things for Maria.

     To help Maria most, your money is put together with that of other sponsors. Building schools, hospitals,

bringing in clean water is what "Save the Children" has been working on since 1932.

     For you there are many rewards. You have the chance to write to or hear from the child you sponsored, to

receive photos or progress reports, to know you are reaching out to another person, not with a handout

(救济品), but a hand up. That's how "Save the Children" works. But without you, it can't work. Please take a

moment now to fill in and post the form below to help a child like Maria.

     It can make a difference in his/her life and yours.

                                                                                                                        For the children

                                                                                                                        David Li Guyer

1. We can read the letter in _______. [ ]

A. somebody's diary

B. a piece of newspaper

C. a progress report

D. a story book

2. What's Maria's most serious problem? [ ]

A. She has no chance to go to school.

B. Her father died of a serious disease.

C. Hard work has made her suffer a lot.

D. Her mother needs her badly at home.

3. What is "Save the Children"? [ ]

A. An activity to help poor children go to school.

B. An office of the government to collect money.

C. A program shown at theaters to help the poor.

D. A group who works for children in poor places.

4. The last sentence in the letter means "_______". [ ]

A. If Maria goes to school, you will be rewarded

B. What you give is more than what you take

C. Both Maria's life and yours will change a lot

D. Maria and you can help each other at school

5. Which activity is similar to "Save the Children"? [ ]

A. English Corner

B. Project Hope

C. The Summer Camp

D. Job Training

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