Iron-Carbon Microelectrolysis Catalytic Oxidation Tower

I. Overview of Shanruo Micro-electrolysis Reactor:
The SR new iron-carbon micro-electrolysis reactor produced by Shanruo Shandong is a supporting reaction device specifically developed based on the characteristics of SR catalytic micro-electrolysis filler. It has a more reasonable structure, enabling long-lasting uniform water and gas distribution. It addresses issues such as filler shrinkage after three years of system operation, equipment clogging, susceptibility to filler agglomeration, and complex replacement and maintenance of components. It is suitable for various micro-electrolysis fillers and can provide effective auxiliary and support functions.

The SR new iron-carbon micro-electrolysis reactor produced by Shanruo Shandong is a supporting reaction device specifically developed based on the characteristics of SR catalytic micro-electrolysis filler. It has a more reasonable structure, enabling long-lasting uniform water and gas distribution. It addresses issues such as filler shrinkage after three years of system operation, equipment clogging, susceptibility to filler agglomeration, and complex replacement and maintenance of components. It is suitable for various micro-electrolysis fillers and can provide effective auxiliary and support functions.

Working Principle
The mechanism of catalytic micro-electrolysis reaction is that under acidic conditions in wastewater, there is a 1.2V electrode potential difference between Fe and C, where carbon has a higher potential, acting as the micro-cathode, and iron has a lower potential, acting as the micro-anode. Corrosion cells and electrolytic electrodes form countless micro-electrolysis circuits in the acidic solution, creating an electric field within their operational space. In this reaction system, the anode reaction generates a large amount of Fe²⁺, which enters the wastewater and is further oxidized to Fe³⁺, forming a flocculant with high adsorption and flocculation activity. The cathode reaction produces a large amount of nascent [H] and [O]. The main mechanisms of each electrode reaction are as follows:

Technical Advantages
1. Solves the problems of filler hardening, passivation, activation, and replacement in micro-electrolysis wastewater treatment processes, while offering the advantages of a continuously high-activity iron bed. Compared to traditional iron-carbon fillers, the loss rate is reduced by over 60%, and the sludge production during treatment is reduced by more than 50%.
2. The internal electrolysis anode, cathode, and catalyst form an architectural alloy structure through high-temperature processing, preventing the separation of anode and cathode that often occurs in iron-carbon mixed configurations, which can affect the galvanic cell reaction. The structured micro-electrolysis filler has a long service life, is easy to operate and maintain, and consumes only a small amount of filler during the treatment process. Based on consumption volume, only periodic addition is required, with no need for replacement.
3. Utilizes microporous activation technology, providing a large specific surface area. Combined with catalysts, it offers greater current density and better micro-electrolysis reaction effects for wastewater treatment, resulting in fast reaction rates.
4. Due to the dual effects of iron-carbon micro-electrolysis and catalysts, compared to traditional iron-carbon fillers, it achieves higher efficiency in treating wastewater with high organic concentration, high toxicity, high chroma, and poor biodegradability. The COD removal rate in wastewater is generally between 35% and 60%, while the chroma removal rate exceeds 95%. It also significantly improves the B/C ratio, greatly enhancing the biodegradability of wastewater.
5. The electrolysis treatment method can achieve the effect of chemical precipitation for phosphorus removal and can also remove heavy metals through reduction. After micro-electrolysis treatment, nascent ferrous or ferric ions formed in the water provide better coagulation than conventional coagulants. There is no need to add additional iron salts or other coagulants, resulting in high COD removal rates without causing secondary pollution to the water.

Equipment Materials
Anti-corrosion carbon steel, fiberglass, stainless steel
Application Scope
Dye, chemical, and pharmaceutical wastewater; coking and petroleum wastewater;—After treatment, COD values are significantly reduced, and BOD/COD ratios are greatly improved.
Printing and dyeing wastewater; leather wastewater;
—Excellent application for decolorization, with significant COD removal.
Electroplating wastewater; printing wastewater; mining wastewater; other heavy metal-containing wastewater;—Can remove heavy metals from the above wastewater.
Organophosphorus agricultural wastewater; organochlorine agricultural wastewater;—Greatly improves the biodegradability of the above wastewater and can remove phosphorus and sulfides.