问题 问答题

第二题    电解铜箔

    某公司拟在工业园区建设电解铜箔项目,设计生产能力为8.0×103t/a,电解铜箔生产原料为高纯铜。生产工序包括硫酸溶铜、电解生箔、表面处理、裁剪收卷。其中表面处理工序工艺流程见图1。表面处理工序粗化固化工段水平衡见图2。工业园区建筑物高约10m~20m。

       

       

    粗化固化工段废气经碱液喷淋洗涤后通过位于车间顶部的排气筒排放,排气筒距地面15m。

    拟将表面处理工序生产的反渗透污水、粗化固化工段废气治理废水和一级离子交换树脂再生产生的废水混合后处理。定期更换的粗化固化槽液、灰化槽液和钝化槽液委外处理。

        [问题]

指出表面处理工序会产生哪些危险废物。

答案

参考答案:

根据本项目特点,表面处理工序会产生的危险废物有: (1)粗化固化槽液,其中含有金属铜,按照《危险废物名录》和《危险废物鉴别标准》的要求,其为危险废物。 (2)灰化槽液,含金属锌,按照《危险废物名录》和《危险废物鉴别标准》的要求,其为危险废物。 (3)钝化槽液,含有重金属铬,按照《危险废物名录》和《危险废物鉴别标准》的要求,其为危险废物。 (4)废弃离子交换树脂及离子交换树脂再生废液。 (5)槽渣和含铬污泥。

单项选择题
完形填空
I’d been proud that I’d never lost my cellphone until my husband Jack got a call one evening.
We went to visit a friend in hospital last year. When Jack’s  36  rang, it was my mother calling from my  37 . She asked if I had  38  my mobile. I checked my purse. It was  39 !
I used Jack’s phone to call my number. Then a boy, whom I’ll call Rhys,  40  it. “I found your phone!” he said, excitedly. “I have been trying to find you, but  41  it was getting late, I decided to leave.” He gave me the address of a  42  near his home.
Later that evening, I went to  43  him there. I didn’t dare to go  44 , worrying this was some cheater. So Jack came along. After  45  10km, we got to the coffee shop which Rhys  46 .
My  47  were gone. Rhys was just a young boy. “How did you  48  my mum?” I asked. He  49  that when he found my mobile by the roadside, he started calling people in my list of contacts. But all they  50  was my mobile phone number—which didn’t    51 . He’d called many names, starting with the letter A. Finally he got Adam, one of my friends, who  52 my house.
I was  53  to get my phone back with all the contacts, messages and photos I could have lost for ever. I was so  54  to Rhys and offered him some money, but he  55 .
As we drove back, we praised Rhys for his honesty.
小题1:
A.electric car
B.mobile phone
C.radio
D.doorbell
小题2:
A.hospital
B.company
C.school
D.home
小题3:
A.found
B.changed
C.lost
D.bought
小题4:
A.gone
B.new
C.busy
D.broken
小题5:
A.accepted
B.returned
C.got
D.answered
小题6:
A.before
B.because
C.after
D.if
小题7:
A.coffee shop
B.post office
C.hotel
D.supermarket
小题8:
A.follow
B.meet
C.catch
D.punish
小题9:
A.slowly
B.back
C.alone
D.finally
小题10:
A.driving
B.running
C.walking
D.riding
小题11:
A.talked about
B.looked for
C.heard of
D.knew about
小题12:
A.difficulties
B.fears
C.diseases
D.hopes
小题13:
A.remember
B.know
C.tell
D.understand
小题14:
A.realized
B.repeated
C.explained
D.believed
小题15:
A.had
B.noticed
C.expected
D.finished
小题16:
A.happen
B.matter
C.help
D.fit
小题17:
A.called
B.visited
C.shared
D.sold
小题18:
A.sorry
B.glad
C.sad
D.proud
小题19:
A.useful
B.strange
C.grateful
D.polite
小题20:A missed
B. appeared
C. agreed
D. refused