How Many Deodorization Processes Are There in Wastewater Treatment Plants?

A company specializing in the research and production of a series of environmentally friendly catalytic materials, including ozone decomposition catalysts, carbon monoxide catalysts, hopalat agents, manganese dioxide, copper oxide, VOC catalysts, and hydrogen peroxide catalysts, is compiling information to provide highly adaptable catalytic material solutions for various environmental governance scenarios. We hope this information is helpful.

Our main clientele includes: industrial waste gas treatment companies, ozone purification equipment manufacturers, environmental protection companies in the motor vehicle, shipbuilding, petrochemical, and chemical industries, coating, printing, VOCs treatment, municipal and industrial wastewater treatment companies, flue gas treatment companies in the metallurgical and thermal power industries, laboratory and enclosed space air purification equipment manufacturers, and environmental engineering general contracting and operation and maintenance companies.

During operation, wastewater treatment plants produce malodorous gases such as hydrogen sulfide, ammonia, and VOCs, which not only pollute the surrounding environment but also affect residents' lives. Therefore, the selection of deodorization processes for wastewater treatment plants is crucial. Currently, wastewater treatment plant deodorization processes can be divided into four main categories based on their reaction principles. Each type of process has its own advantages and disadvantages. Among them, ozone decomposition catalysts are increasingly widely used in wastewater treatment plant deodorization due to their outstanding advantages.

Physical deodorization is the most basic process. Its core is to separate and transfer malodorous molecules through physical action. Common methods include activated carbon adsorption and physical absorption. Its advantages include simple equipment, low investment cost, and convenient operation, making it suitable for temporary treatment of low-concentration odorous gases. Its disadvantages include incomplete deodorization, easy generation of secondary pollution, the need for regular replacement of adsorbents or absorbents, high long-term operating costs, and difficulty in meeting the needs of high-concentration odor treatment.

Chemical deodorization relies on chemical reactions to neutralize and oxidize odor molecules, mainly including acid-base washing and oxidation absorption methods. Its advantages include high deodorization efficiency, fast reaction speed, and the ability to treat high-concentration odorous gases. Its disadvantages include high reagent consumption, easy generation of chemical wastewater, difficult subsequent treatment, strong corrosiveness to equipment, and high operating costs.

Biological deodorization utilizes microorganisms to degrade odor molecules, commonly including biofilters and biotrickling filters. Its advantages include environmental friendliness, no secondary pollution, low operating costs, and suitability for long-term treatment of medium- and low-concentration odors. Its disadvantages include long start-up cycles, significant influence from temperature and humidity, poor treatment effect on recalcitrant odor molecules, and large footprint.

Advanced oxidation processes are novel deodorization technologies. Their core principle is the generation of highly oxidizing free radicals to decompose malodorous molecules. Among these, ozone decomposition catalysts are the most widely used. 

Ozone decomposition catalysts convert ozone into hydroxyl radicals, significantly enhancing oxidation capacity. Their advantages are prominent:

 first, thorough deodorization, efficiently decomposing various recalcitrant malodorous molecules without residue;

 second, strong adaptability, handling odors of varying concentrations and compositions, suitable for various scenarios such as sludge treatment rooms and bar screens in wastewater treatment plants;

 third, environmentally friendly and energy-saving, requiring no large amounts of chemicals, eliminating secondary pollution, and reducing operating costs; 

 fourth, convenient installation, adaptable to both new and old plant renovations, requiring minimal space.

In summary, each wastewater treatment plant deodorization process has its advantages and disadvantages. In practical applications, a comprehensive selection must be made based on odor concentration, site conditions, and operating costs. Ozone decomposition catalysts, with their high efficiency, environmental friendliness, and strong adaptability, effectively compensate for the shortcomings of traditional processes, becoming the preferred solution for wastewater treatment plant deodorization, helping wastewater treatment plants achieve environmental standards and improving the surrounding living environment.

author:Hazel
date:2026-02-10