Will Fenton oxidation counteract the anaerobic reaction?
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This post was last edited by Gorō Bagua Stick on 2015-7-25 21:55. I am currently working on a biochemical project, and the process chosen is Fenton oxidation + anaerobic + aerobic treatment. Since the biochemical quality of this water sample to be treated is very poor, the Fenton oxidation process was adopted. However, the company hired a doctor from Tongji University, who suggested that anaerobic treatment should not be used after applying Fenton oxidation, as the water resulting from Fenton oxidation would be reduced again in the anaerobic tank, thereby reducing the effectiveness of Fenton oxidation. But the fact is that if we feed the mixture directly into the aerobic tank after Fenton treatment, the aerobic environment cannot handle it; our COD level reaches 20,000, and the organic matter concentration is too high, resulting in a large amount of viscous foam. Therefore, an anaerobic stage must be added. With the addition of anaerobic conditions, the treatment efficiency improved significantly. Here, I would like to ask the professionals present: does Fenton oxidation really cancel out the anaerobic reactions? I have never seen any similar literature; I hope experts can provide some information on this.
The first time I heard it, I was told that anaerobic processes involve reduction; they occur in the absence of oxygen, where organic matter is converted into methane and water. The Fenton test, on the other hand, involves the oxidation of organic matter. There is no inherent contradiction between the two, and it is entirely possible to decide whether to use an anaerobic process after applying the Fenton test, depending on the requirements of the process
This post was last edited by Gorō Bagua Stick on 2015-7-27 08:54. No, in anaerobic conditions, it is usually sulfur bacteria that reduce sulfate to hydrogen sulfide; they do not reduce large organic molecules
After all, a Ph.D. from Tongji – though I don’t know much about it – it doesn’t seem like fermentation and anaerobic processes are both forms of oxidation
This post was last edited by Longyuan on 2015-7-27 at 15:07. One could ask a Tongji University doctor in detail about the specific principles behind this, but personally I think there shouldn’t be any contradictions. Some literature on the combined use of Fenton treatment and anaerobic processes has also been found; it’s possible to take a look at such materials on Baidu.
Personally, I think this situation does not exist. 1. The Fenton process relies on electrochemical oxidation to oxidize organic substances. Used in pretreatment, it oxidizes substances that are difficult to biodegrade into those that are easier to biodegrade, thereby increasing the B/C ratio. 2. Anaerobiosis relies on anaerobic bacteria to biologically decompose organic matter.