In recent years, biological deodorization technology (especially biological filtration and deodorization technology) has been gradually promoted in practical application due to its relatively mature process, low infrastructure cost, simple operation and maintenance, thorough pollutant purification and good treatment effect, and has been successfully applied to the treatment of odor in sewage plants and public areas and the removal of VOC and toxic gas emissions, and has become the mainstream process of odor treatment in urban sewage treatment.
| Process selection | Advantage | Shortcoming |
| Biological filter method | 1) Stable effect and low operating cost; Low infrastructure investment: 2) Simple implementation and convenient management; 3) Less equipment, simple system maintenance; 4) Assembly type, convenient transportation and installation |
1) Large footprint 2) Sensitive to environmental and climate change; 3) Poor resistance to impact load; 4) Complex operation and high operation management requirements |
| Natural plant liquid technology | 1) Low construction cost, good deodorization effect; 2) The power equipment of the infusion system is simple and the power consumption is saved; 3) Small footprint, flexible equipment placement; 4) Natural gas can be adjusted at any time according to the change of odor nature Plant liquid components, deodorization targeted |
1) Natural plants need to be imported, and the operation cost is high; 2) When deodorizing the open pool, it is greatly affected by climate factors |
| Active oxygen technology | 1) Stable effect, low operating cost; 2) Strong adaptability to changes in odor properties; 3) Simple operation, good system reliability; 4) The operation mode is flexible, can be continuous, intermittent, does not affect Deodorizing effect; 5) The equipment covers a small area |
1) High investment in infrastructure 2) The stability of high-energy reactive oxygen species is insufficient |
| High energy ion purification technology | 1) Stable effect and low operating cost; 2) Strong adaptability to changes in odor properties 3) Simple operation, long service life of equipment; 4) Flexible operation, continuous, intermittent, does not affect deodorization The effect; 5) The equipment covers a small area and the infrastructure investment is low |
The oxidation capacity of ionic oxygen is not as good as that of high-energy reactive oxygen species |