皮皮学，免费搜题
登录
搜题
【简答题】
某熔炼厂，位于一般工业，在厂区西南偏南方向1.5km处有一居民区，该区域盛行东风。该厂有两台同一型号的熔炼炉，通过各自的排放烟囱排放污染物。采用外购废铜、锭、锭、阴极铜为原料进行熔炼，生产铜合金管棒材。使用电作为能源，能耗较高，熔炼炉排放烟囱高度均为14m。排放的污染物主要为TSP和SO 2 。为改善污染物排放状况，该厂拟对现有的脱硫和除尘系统进行改造。改造后，各烟囱的风机运转风量为27000m 3 ／h；预计各烟囱的污染物最大排放源强TSP为0.75g/s，SO 2 为0.375g/s。经估算模式计算，TSP最大小时落地浓度为0.0894mg/m 3 ，位于下风向500m处。生产的铜合金管棒材半成品冷却后送酸洗车间进行酸洗，随后用自来水对棒材表面进行冲洗，产生的废水经酸洗车间污水处理装置处理后送厂区污水处理站处理，随后排入长江。为了监控污水排放达标情况，该厂在污水入江口设有取样口，采集污水水样进行检测。TSP和SO 2 的环境质量标准见表1。 该项目大气污染物执行什么排放标准？假如该标准中TSP排放浓度限值为150mg/m 3 ，SO 2 排放浓度为850mg/m 3 ，请说明排放的污染物是否达标并给出理由。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】听力原文：M: Isn't that a brand-new typewriter you're using. W: Oh，Bill，this isn't the first time you've asked me about it. Q: What does the woman imply? (18)
A.
The typewriter is not new.
B.
The man is a forgetful person.
C.
The man can have the typewriter later.
D.
The man misunderstood her.
【单选题】听力原文：W: There is an element there about competition then, isn't there, because British Railways are a nationalized industry. There's only one railway system in the country. If you don't like a particu...
A.
Good or bad, they are there to stay.
B.
Like it or not, you have to use them.
C.
Believe it or not, they have survived.
D.
Gain or lose, they should be modernized.
【简答题】（）（15分） 阅读下列说明，回答问题1至问题3，将解答或相应的编号填入答题纸的对应栏内。【说明】 A公司为某钢铁业的客户开发大型MES信息系统项目，罗工担任了该项目的项目经理，由于客户担心在项目验收后，后续维护存在困难，因此要求成立联合项目组，这样项目组的开发人员里有三分之一来自于客户方。而且客户对项目的质量要求很高，罗工也深知质量对于客户的重要性。 因此在项目启动不久后，罗工就召开了专门的质量...
【单选题】听力原文：M: Isn't that a new brand of typewriter you are working at? W: Oh, Bill. This isn't the first time you've asked me about it. What does the woman imply?
A.
The man is a forgetful person.
B.
The typewriter is not new.
C.
The man can have the typewriter later.
D.
The man misunderstood her.
【单选题】采用泵送混凝土工艺时，水泥用量不宜过少。否则泵送阻力增大，最小水泥用量为( )kg m3．水灰比宜为0．4～O．6。
A.
200
B.
250
C.
300
D.
400
【简答题】采用泵送混凝土工艺时，水泥用量不宜过少，否则泵送阻力增大，最小水泥用量为（）kg/m，水灰比宜为0.4～0.6。
【单选题】听力原文：M: Isn't that a new brand of typewriter you are working at? W: Oh, Bill. This isn't the first time you've asked me about it. Q: What does the woman imply? (13)
A.
The man is a forgetful person.
B.
The typewriter is not new.
C.
The man can have the typewriter later.
D.
The man misunderstood her.
【单选题】听力原文：M: Isn't that a new brand of typewriter you are working at? W: Oh, Bill. This isn't the first time you've asked me about it. Q: What dins the woman imply? (15)
A.
The man is a forgetful person.
B.
The typewriter is not new.
C.
The man can have the typewriter later.
D.
The man misunderstood her.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
