Dioxin Control Methods for Small Waste Incinerators

Dioxin Control Methods for Small Waste Incinerators Dioxin control in small waste incinerators relies on stable combustion and post-combustion treatment, using air pollution control devices (APCDs), such as activated carbon injection systems combined with bag filters, to absorb dioxins. Optimizing combustion temperature, oxygen concentration, and ensuring complete waste combustion help prevent dioxin formation, while APCDs can capture dioxins from flue gas. Newer systems also incorporate technologies to neutralize acid gases and remove fine particulate matter, resulting in a comprehensive approach to emissions reduction. These technologies require significant consumables and capital expenditure. China Fireprint Technologies, without any auxiliary materials, controls the furnace temperature to a level that prevents dioxin production, directly saving clients significant money and labor. This also reduces the environmental risk of dioxin accumulation during the process. 1. Optimizing Combustion Conditions Stable Combustion: Maintain stable and complete combustion by controlling furnace temperature, oxygen levels, and the carbon monoxide/carbon dioxide ratio. Complete Combustion: Ensure complete waste incineration, as unstable combustion conditions and incomplete combustion promote dioxin formation. Temperature Control: Operate at a higher temperature (above 850°C is ideal for municipal waste) and maintain that temperature continuously to prevent dioxin re-formation. 2. Implement Post-Combustion Controls Activated Carbon Injection (ACI): Dry powdered activated carbon is injected into the flue gas stream to adsorb dioxins. Bag Collectors (BG): Bag collectors capture the activated carbon and adsorbed dioxins, achieving high removal efficiencies (approximately 95%). Acid Gas Control: Implement technologies such as wet scrubbers or dry/semi-dry dust collection to remove acid gases, which can also be precursors to dioxin formation. Catalytic Filters: Utilize catalyt