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syquan1988

木虫 (小有名气)

[求助] 过氧化氢 过硫酸盐 COD 干扰 消除

大家有用芬顿或者过硫酸盐处理废水后测COD的吗?请教一下,测COD时如何消除过氧化氢和过硫酸盐的影响?大家交流一下。做一个月的实验了,数据一直不稳定,愁死了!
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谁的、〈x-1n》中没有一座伤城〆゛
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yinzhen015

金虫 (小有名气)

【答案】应助回帖

★ ★ ★
syquan1988: 金币+3, ★★★很有帮助 2012-09-21 16:11:03
可以看一下这篇文章:Sulfate radical-advanced oxidation process (SR-AOP) for simultaneous removal of refractory organic contaminants and ammonia in landfill leachate。这里面讲到反应结束后,要测过硫酸盐是否反应完全,如果反应完全了,再测COD。Persulfate was qualitatively measured as follows once every day to determine whether all the persulfate was decomposed.One half milliliter of uniform sample was collected andmixed with 20 mL NaI and starch solution. If the solution became blue, persulfate still remained; otherwise, persulfate was
completely decomposed. Once persulfate was depleted, the
residual samples in the reactors will be collected for COD and
ammonia analysis.
交流交流,再交流
34楼2012-09-20 15:20:09
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syquan1988

木虫 (小有名气)

引用回帖:
2楼: Originally posted by qingheyouyou at 2012-06-30 22:50:19

给点实质性的建议嘛!
谁的、〈x-1n》中没有一座伤城〆゛
3楼2012-07-01 08:29:20
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zhupf1990

木虫 (著名写手)

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小木虫: 金币+0.5, 给个红包,谢谢回帖
ymnh: 金币+1, 积极参与交流,欢迎常来环境版 2012-07-01 15:58:51
没有做过,但做过COD的测定实验,你可以查一查监测标准方法,如果标准方法都没有提及,那你应该换一种方法了,这一类的监测都已经标准化了,一般以标准为准,不推荐使用其他方法。
路漫漫其修远兮,吾将上下而求索。
4楼2012-07-01 14:58:45
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jorhelwzh

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小木虫: 金币+0.5, 给个红包,谢谢回帖
网上有类似的研究文章,好好查查吧。
5楼2012-07-01 17:48:20
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