The market space for dioxin removal is huge and the types of processes are still increasing.

Dioxin removal is a technology that removes colorless, odorless, highly toxic dioxins from industrial by-products. Dioxins are chlorinated oxygen-containing tricyclic aromatic hydrocarbons. There are more than 200 subdivided products. They are solid at room temperature, have high melting points, are difficult to dissolve in water, have stable chemical properties, are highly toxic, and have irreversible effects on organisms. Dioxins are teratogenic, carcinogenic, and mutagenic, and are difficult to degrade in nature. Therefore, artificial means must be used to remove dioxins.

According to the “China Dioxin Removal Industry Market In-depth Research and Development Prospects Forecast Report 2022-2027” released by the Industrial Research Center It shows that currently, there is no way to utilize dioxin, but it exists widely as a by-product in many industries. The main ways in which dioxins are produced include: waste incineration by-products, vehicle exhaust emissions, steel/non-ferrous metal smelting by-products, including preservatives, insect repellents, pesticides, bleach and other chemical preparation by-products and use emissions wait. Dioxins have a wide range of sources and cannot be used rationally, so measures must be taken to remove them. From this point of view, the market space for dioxin removal is huge.

Waste incineration is an important source of dioxins. Waste characteristics and combustion conditions will affect the amount of dioxin produced. From the perspective of waste characteristics, per unit weight, the highest amount of dioxin is produced when hazardous waste and medical waste are incinerated. Due to the large proportion of plastic waste, the incineration of chlorine-containing plastics is the largest source of dioxin. From the perspective of combustion conditions, when the oxygen is sufficient and the combustion temperature reaches the standard, the amount of dioxin produced is relatively low. If the combustion is insufficient, the amount of dioxin emissions will increase.

Entering the 21st century, my country’s industrial scale and waste incineration scale continue to expand, and the country’s requirements for the prevention and control of dioxin pollution continue to increase. In April 2007, the State Council approved the National Implementation Plan, which put forward clear requirements for the prevention and control of persistent organic pollutants such as dioxin. Since then, dioxin-related emission policies have been introduced one after another, such as the “Guiding Opinions on Strengthening the Prevention and Control of Dioxin Pollution”, the “Twelfth Five-Year Plan for the Prevention and Control of Persistent Organic Pollutant Pollution in Major Industries across the Country”, and “Control of Pollution from Domestic Waste Incineration” Standards” etc. This brings huge market space for the dioxin removal industry.

Industry analysts said that the traditional process for removing dioxin is to treat the waste gas generated during garbage incineration and industrial production. , using activated carbon adsorption method + bag dust collector to separate the fly ash particles, thereby achieving dioxin removal. New dioxin removal processes mainly include: catalytic decomposition method, which places a dioxin removal catalyst in a reactor and removes dioxin through a catalytic reaction. This technology has a high application rate, but the catalyst performance still needs to be Continuous optimization; the electron beam decomposition method uses an accelerator to generate high-energy electron beams to destroy the chemical bonds of dioxin and decompose it. This method is costly and difficult to apply industrially; the photocatalysis method uses light as a catalyst to accelerate the breakage of dioxin chemical bonds. But its efficiency needs to be improved.