问题 问答题

某开发区新建热电厂,规模为2×135MW热电联产机组配2×465t/h循环流化床锅炉(脱硫效率85%),年发电量1.369×109kwh,年供热量3.51×1012GJ,替代开发区内现有锅炉100余台。设计耗煤量127.2t/ h,燃煤硫分1.20%、低位发热量21940kJ/kg,年运行5500h。锅炉烟气除尘后,经210m高烟囱排空。热电厂南侧100m是职工宿舍区,其余三面均与工厂相邻,西南400m是孙家庄,东面9Km处为滨海自然保护区(省级)。灰渣分除,干灰集中至灰库,渣采用机械除渣系统输送至渣库,全部综合利用;利用污水处理厂的中水作为循环补充水,采用带自然通风的冷却塔循环水系统。

根据以上内容,回答以下问题。

以SO2为污染物,确定环境空气影响评价的评价等级、监测点数。

答案

参考答案:

①SO2排放量

QSO2=用煤量×含硫率×2×80%×(1-脱硫效率)

=127.2×1.20%×2×80%×(1-85%)

=0.37t/h

②等标污染物排放量

③厂址位于沿海的开发区内,属复杂地形。

综合判定该工程环境空气影响评价的评价等级为二级。

二级评价监测点数不应少于6个。

单项选择题

In the United States and in many other countries around the world, there are four main ways for people to be (91) about developments in the news: newspapers, magazines, and radio or television news broadcasts. A person may use one, or all, of these (92) for information. Each source is useful in its (93) way. Newspapers and magazines can give much information about a particular event. They may (94) some history of the event, some of its (95) , some of its effects, or perhaps give an (96) or point of view on a particular development. Radio and television can help a person to be well informed about what is happening each day. It is also (97) to listen to radio or watch TV (98) do something else at the same time. Many people can listen to the news on their car radio while driving (99) . For the student of English as a foreign language, an English language newspaper may be the most helpful news source that will also (100) you practice in reading English.
Most daily English language newspapers are not very hard to find. They are interesting and helpful in many (101) . In some of them, you may be able to find news about your (102) country. You will find news and information about important national and international political (103) . (104) what you are interested in, you can probably find something in the newspaper about it. A(n) (105) in the newspaper may help you solve a problem. Other stories may be about good movies, concerts, or TV shows.
Usually, an English language newspaper has several (106) or parts. Each part of the newspaper (107) stories about different kinds of news. Some sections have a lot of advertisements which may be helpful if you want to save money. By reading the advertisements, you may find something you want (108) sale. Or you may find that two stories are advertising the (109) thing, but at one store the price is lower. Other sections may have (110) advertisements or have only a specific type of advertisement to interest the people.

A.right

B.own

C.very

D.just

单项选择题