Advanced treatment technology of heterogeneous catalytic oxidation

Brief introduction of Process principle

      Heterogeneous catalytic oxidation technology is a rich and development of advanced oxidation technology for wastewater treatment, and it is difficult to degrade pollutants and H₂O₂The molecule first spreads to the active center of the highly efficient catalyst surface, where it is adsorbed, and then H₂O₂Under the catalysis of highly active catalysts, a large number of Ho are produced, which lead to free radical reaction oxidation and degradation of organics, and the degradation products are mainly h₂O, CO₂and inorganic salts, which are removed from the surface of the catalyst and diffused into aqueous solution, so as to achieve the removal and harmlessness of contaminants in water. Our company has developed a proprietary and highly efficient solid state catalyst for heterogeneous catalytic oxidation technology. The catalyst is through the nanometer technology, the iron oxide and manganese, silicon and other active excitation material formulation compound, achieve higher activity and stability, promote the reaction process of Ho, thus can more efficient degradation of pollutants.

Advantages of heterogeneous process and Fenton technology

in the current engineering practice, the common process of sewage advanced treatment is Fenton method, but there are still many problems in the process of treating wastewater by
Fenton Method: 1. Need to continue to join Fe^{2 +}AndH₂O₂Pharmaceutical, high processing cost
2, add to the reactor in the H₂O₂It is easy to decompose into water and oxygen, the oxidant waste is obvious;
3, the ph requirements of the reaction process is more stringent, the ph correction
cost is high, 4, the effluent salinity is high,
the phenomenon of color return is obvious; 5, the reaction process produces a large amount of Fe (OH) ₃Sludge, which increases the cost of sludge treatment.
for the lack of Fenton technology, our company introduced and developed a heterogeneous catalytic oxidation of wastewater advanced treatment technology, through the special-effect solid catalysts and high-performance reactors combined with the treatment process, a better solution to the
above problems: 1, mild reaction conditions, There is no requirement for temperature and pressure, the ph demand is mild and easier
to realize; 2. The total degradation of the refractory in wastewater into carbon dioxide and water, compared with the traditional Fenton process two times the impact of
pollution significantly reduced; 3. It can reduce the processing
cost; 4. The problem of effluent
return is eradicated; 5. Compared to the yield of the chemical sludge
, the 70% can be reduced by 6, and the catalyst is reduced effectively compared with the Fenton process.(Fe^{2 +}）Loss, acid-base adjustment needs to be greatly reduced, the effluent salinity and electrical conductivity significantly improved, more conducive to reuse.
honors and Qualifications
Our heterogeneous catalytic oxidation technology has been row: National Ministry of Industry, Ministry of Science and Technology "national incentive development of major environmental protection Equipment catalogue" (2017 edition)
Company by the China Environmental Protection Machinery Industry Association identified as: the state to encourage the development of major environmental protection equipment (2017) Relying unit

our heterogeneous Technology Patent Copyright:
1, sewage treatment catalytic oxidation reactor (patent No.: Zl 201220505510.0)
2, a nano-ferric oxide, its preparation method and use (Patent No.: ZL 1 0421818.1)
3, A FE-MN composite oxide catalyst and its preparation method (patent no: ZL 2015 1 0540793.0)