Efficient iron carbon filler for COD removal supports customized wastewater treatment

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Efficient iron carbon filler for COD removal supports customized wastewater treatment

Micro electrolysis packing, also known as iron carbon packing or micro electrolysis packing, is a type of multi-element catalytic oxidation packing developed for the difficult degradation and biochemical characteristics of organic wastewater. It is an important condition for micro electrolysis technology to treat wastewater.

The iron carbon filler produced by our company is made by sintering various raw materials such as iron, carbon, composite catalysts, protective agents, precious metal catalysts, and other metal catalyst activators through a 1300 ℃ coking and smelting process. It is a new type of additive non plate micro electrolytic filler. The new generation of iron carbon fillers developed by our company has stable treatment effects and can effectively solve the problems of iron carbon filler plate formation and passivation. It is an important guarantee for the sustained effect of microelectrolysis reactions.

Our company's iron carbon filler has the following advantages:

1. Stable processing effect, stable, reliable, and long-lasting performance;

2. The product has high strength and is truly sintered at 1300 ℃. Its physical strength reaches 1500kg/cm2, which is sufficient to withstand a pressure of 20 meters of water column. It will not break or pulverize during use, and the activation technology used ensures that the strength remains unchanged when the porosity is ≥ 65%;

3. Low loss, certified by hundreds of customers, with an annual loss rate of less than 10% at pH 3-4;

4. Non hardening and non passivation, adding multiple catalytic elements to form a porous structure, more effectively overcoming the phenomena of hardening and passivation;

5. The amount of sludge is small, and our company's produced fillers do not add any clay components as binders. The effective content of iron/carbon is greater than 90%, resulting in less sludge produced by the reaction.

There are several important technical parameters for iron carbon fillers. Regarding how to distinguish them, let me give you a detailed introduction:

1. Product strength. It's not that the higher the strength, the better the product. Product strength is only a relative statement. The product strength is too high, and iron is continuously consumed during the reaction process, making it difficult for the carbon layer to peel off, resulting in the formation of iron oxides and carbon layer wrapping during the reaction process, leading to filler plate formation; The product has too low strength and is prone to pulverization in acidic environments, which affects the effectiveness of microelectrolysis effluent;

2. Porosity rate. Some manufacturers on the market claim that their products have a porosity of 65%, but this is not the case. Some merchants' products have a shiny and solid cross-section after cutting, while others' products cannot be broken by a hammer, and the porosity cannot be guaranteed at all.

3. Iron content. The higher the iron content, the better the product. During the reaction process, two elements, iron and carbon, are consumed. If the iron content is too high, the carbon content will be exhausted after a period of reaction, which will cause the product to be enveloped by a large amount of negative charges, forming a protective shell and reducing the effect of microelectrolysis reaction. Simply put, carbon is completely lost, leaving only iron element, and the product is no different from an iron block. If the iron content is too low and the carbon content is too high, the iron will be completely consumed during the reaction process, leaving only carbon, and the product will lose its effectiveness.

4. Small scale experiment. There is a certain gap between small-scale experiments and practical engineering applications. On the one hand, the small-scale experiment is to examine the processing effect of the product, and in the actual process, the durability of the product's use also needs to be considered. The experimental results of various products in the iron carbon small-scale experiment are not significantly different. If any product has a much higher removal rate in the experiment, one must be vigilant as it is highly likely that activated carbon has been added to the sample.

5. Loss rate. In an environment with a pH of 3-4, the annual loss rate of iron carbon filler is basically 10% -15%, and the lower the acidity, the greater the loss. It is also related to factors such as the stability of the inflow, residence time, water quality, and aeration rate. But the loss rate also has a general range, and if any product has excessive loss beyond the preset range, special attention should be paid when purchasing.

Efficient iron carbon filler for COD removal supports customized wastewater treatment