The technology of micro electrolytic iron carbon filler

Micro electrolysis process has been adopted very early, but the use of materials for carbon iron and wood, commonly used to add alkali activation, before use in the process of passivation harden and easily again because of iron and carbon is physical contact, it is easy to form isolation layer between the micro electrolysis does not lose to continue, this led to the frequent replacement of micro electrolysis material, not only high workload big cost but also affect the treatment effect of wastewater and the efficiency on the other hand, traditional micro electrolysis material surface area is too small also makes the waste water treatment takes a long time, the serious influence the use of micro electrolysis process and promotionOnly on micro electrolysis technology innovation can make the micro electrolysis get better promotion and use, we in exploitation and innovation, and gradually developed a new type of products - iron carbon micro electrolysis packing with scrap iron and other metal and non-metallic carbon as the main elements, and according to certain proportion mix molding, burn into structured packing, highly active iron and sustained advantages, in the process of high concentration wastewater has the following characteristics. 

1.Solved the packing micro electrolysis sewage treatment process harden passivation activation, replacement, and highly active iron and sustained advantages compared with traditional iron carbon filler, wastage decreased by more than 60%, at the same time to deal with the sludge volume decreased by over 50% each unit the technology can be used as a separate processing method, and can be used as a biological pretreatment process, conducive to the settlement of the sludge and biological membrane.

2.Internal electrolysis anode and catalyst type of architecture are formed by high temperature alloy structure, not like iron carbon mixed equipping, Yin and Yang are prone to separation, neat galvanic cell reaction micro electrolysis packing long life operation and maintenance is convenient, in the process consumes only a small amount of micro electrolysis packing micro electrolysis according to consumption volume, only can be added on a regular basis, without replacement.

3.Adopting micropore activation technology, with large specific surface area and catalyst addition, it provides greater current density and better microelectrolysis reaction effect for wastewater treatment. The reaction rate is fast, generally, it only takes 30-60 minutes for industrial wastewater, and the long-term operation is stable and effective.

4.Due to the dual role of micro-electrolysis and catalyst, compared with the traditional iron-carbon filler for the treatment of refractory wastewater with high concentration of organic matter, high toxicity and high chroma, the COD removal rate in the wastewater is increased by 10-20%, and the COD removal rate in the wastewater is generally around 35-60%. The chroma can be removed by 60-90% while the B/C value can be increased by 0.1-0.3, which improves the biodegradability of the wastewater.

5.Micro electrolytic method can achieve the effect of phosphorus removal by chemical precipitation, can also through the reduction in addition to heavy metal waste water after micro electrolysis treatment will form the original ecological or ferrous iron in water, is better than the ordinary coagulant coagulation effect, no need to add iron salts coagulant, such as high removal rate of COD, and will not cause secondary pollution to the water.

6.The catalysis of Fe2 and the addition of H2O2 after micro-electrolysis, namely fenton oxidation process, have a good degradation effect on some refractory chemical wastewater, such as CODcr, whose degradation rate can reach 70-75%, and on refractory organic substances containing double bond nitro halogenated groups of difluorocarbon.

7.For the high concentration organic wastewater treatment projects that have been built but not up to the standard, the technology can be used as the pretreatment of the wastewater from the existing projects to ensure the stable discharge up to the standard after the wastewater treatment, and the part of the wastewater with high concentration in the production wastewater can be separately extracted for micro-electrolysis treatment.