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我们公司在代理一种美国的酸液再生添加剂, 通过在金属酸洗液内添加少量该添加剂, 结合在线过滤可以去处酸液内的金属离子和有机杂质,使酸液重复使用,勿须排放. 下面是该产品在其它论坛的贴. 那你能把盐酸也重新利用了？？对于多少量的废水用你的方法合适？？ 该药剂是专门对金属处理废酸开发的，可在原液pH的条件下处理。结合在线过滤器，废酸可循环使用。至于处理量，没有要求，因为新增设备只有储罐和在线过滤器。当然，成本还是一个关键的因素。有需要，我可以向我朋友要一些样品做一下。
, H; v7 w2 m7 R! M" w你酸洗浓度有多高?我觉得回收难度比较大,不好弄! 放不上，等明天吧。至于酸液浓度，硫酸，硝酸等都可。案例中的浓度可以到30 wt.%
6 {- N6 Q7 \" k* R一次投入要多少钱啊？ 我上面提到了,只需要储液罐,在线过滤器和泵.主要的消耗是添加剂.一次性投入是不大的.
4 A4 C5 q' h9 z% ~没有具体一点的吗？？如果真的可以回收，有很多厂家多是想要弄的！让我帮忙处理的就有两家. 楼上的,我不知你有什么具体要求.方便的话,留一个email(我的是neterli@hotmail.com)继续交流.另外,既然你手头有废酸,我建议做一下小试,药品我来联系.小试的程序大概如下: P; F. r' |4 g+ A- s4 z0 ^
, U# _. c" e3 U: R 1,按1:100的体积比,加药品到废酸中.
/ D; J. Z) }% r+ [( |0 Q 2,缓满搅拌2-3天.
9 F T$ v( f9 l3 w# l9 o9 L+ G5 x 3,用5-25um的滤材过滤废酸,滤过液就可重复使用. 6 ~5 W9 {& o0 Y% \# _
结晶析出 ? 机理不是结晶析出.结晶析出需要在低温和高盐浓度下进行.而该添加剂可在常温,低盐条件下发挥作用.此外,该添加剂除了去除盐,还可去除其它污染物,如部分有机物,油份.到目前为止,我还没有看到国内有同类产品的报道., B; J! m0 u3 u. k
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下面的照片是循环处理多次的废酸液图片. 5 O- G1 Z/ \7 B* j# I9 j: R
[url=http://www.h2o-china.com/center/readpic.asp?id=206107][/url] 这是图片的详细说明.不好意思,是英文的.
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Left Beaker: Nitric Acid (previously disposed of approximately every 1 months) 5 w I' p% H) l* e$ d, x
was first treated with the additive, 3/28/01, and used continuously since that date.
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Right Beaker: Hydrochloric Acid (previously disposed of each 7 to 10 days) was 7 `+ U4 [7 k' s- F9 q
first treated with the additive, November 21, 2000, and used continuously since that date.
& b0 |1 e; D' J (This acid is 2 years old as of November, 2002.)
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The Nitric Acid is approximately 2 & 1/2 years old. The HCL will be 2 years old on November 21, 2002, and it has been used approximately 16 hours a day, five days a week since treating with the additive in November, 2000. The HCL acid bath perviously lasted 7 to 10 days before disposal was required and this acid was completely spent and ready for disposal before it was treated, restored and has been in continuos use since. |
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发表于 2007-9-28 02:20:09
楼主