讨论：臭氧处理后COD反而升高了？？

也就是说您用的臭氧只是将一些大分子降解到能用重铬酸钾消解的小分子喽，这种可能是有的，我在网上看到有好些人说过。

另外，对于生化处理废水来说，还会有处理后的废水，其COD上升了

对于生化处理的水，会不会是因为一些特定的微生物所含有一些特定的生物酶能把难降解的物质给剪切了呢？比如内切酶之类的？或者打开苯环，或者其它的键？是不是跟水质的可生化性密切相关的？

另外，我在想，等明天我用臭氧氧化它几个小时，再看看COD降解了没？我就不信还升？邪门了呢！

对,有条件要试一下,因为带环的有机物我查了一些资料,氧化率还有为0的,30%左右的大有所在

会不会是由于我是刚臭氧氧化完了就直接测COD而带来一定的误差呢？

前两天看书，终于找到了一段有关COD升高的解释，大家共享：
Third Century of Biochemical Oxygen Demand
By Rodger B. Baird and Roy-Keith Smith, Ph.D.
2002, Water Environment Federation http://www.wef.org

P260
CHEMICALLY HYDROLYSABLE CHEMICAL OXYGEN DEMAND
This fraction is added to the list, even though it does not appear in the literature as such, because of the number of studies that have reported the phenomenon. It arises when a raw or treated (stabilized) wastewater is further subjected to chemical oxidation with chlorine, ozone, chlorine dioxide, and so forth. The most common observation is that the chemical treatment breaks down initially inert organic materials, often large natural and synthetic polymers, to smaller fragments that are amenable to biodegradation. This effect has been noted many times after ozonation (Parakeva et al.,1998)

后来怎么样了啊？我现在也在研究臭氧降解水中的COD也是会升高，而且通的时间长了还会有COD上下波动现象呢。。到底是怎么回事啊

生活用水是大家时刻关注的大问题