介紹
Sewage sludge is a byproduct of wastewater treatment. It needs to be incineration to reduce the volume of sludge while recovering energy. However, incineration will generate harmful emissions, including heavy metals, dioxins, volatile organic compounds (VOCs), and unpleasant odors. Activated carbon will be regarded as a efficient method to purify these harmful gases. In this blog, we will forcus on the sewage sludge introduction, the specifc application of activated carbon, and how to choose activated carbon.
What is Sewage Sludge Incineration
Sewage sludge incineration is the thermal treatment of sludge to reduce its volume, destroy pathogens, and recover energy. It involves burning sludge at high temperatures, which converts organic matter into ash and gaseous byproducts.
Although incineration significantly reduces the volume of sludge, it also generates pollutants, such as:
• Heavy Metals: Released from the combustion of sludge containing industrial waste.
• Dioxins and Furans: Toxic byproducts formed during incomplete combustion.
• VOCs and Odors: Released as organic compounds break down.
The Role of Activated Carbon in Sludge Incineration
Because of its porous structure, activated carbon is a ideal choice for waste gas purification of sludge incineration.
• Heavy Metal Capture
Activated carbon can effectively adsorb heavy metals such as mercury, cadmium, and lead from flue gases. These metals will bind to the surface of activated carbon, preventing their release into the atmosphere.
• Dioxin and Furan Removal
Dioxins and furans, which are highly toxic, are adsorbed by activated carbon during exhaust gas treatment. This ensures compliance with stringent environmental regulations.
• VOC and Odor Control
Activated carbon can trap VOCs and odor-causing compounds, preventing unpleasant smells and reducing air pollution.
By integrating activated carbon into the sludge incineration system, the waste management will become easy.
How to Choose the Right Activated Carbon for Sludge Incineration
Selecting the suitable activated carbon is important for sludge incineration. For different types of activated carbon, PAC (powder activated carbon) is especial suitable for this application with its fine small particle size and high surface area.
Powder Activated Carbon (PAC) has excellent dispersion in gas streams, ensuring maximum contacts with pollutants. In practical application, it is usually carried out by spraying.
| 範圍 | 價值 |
|---|---|
| 粒徑 | 200mesh, 325mesh |
| BET Surface Area | 900–1500 m²/g |
| 孔隙體積 | 0.4–0.8 cm³/g |
| Iodine Number | 800–1200 mg/g |
| 灰分含量 | ≤ 10% |
| 水分含量 | ≥ 10% |
結論
Activated carbon plays a key application in domestic sludge incineration and environmental protection. If you are looking for activated carbon in this application, Zhulin Carbon is here to help. We can privde you the customized solution according to your needs.