tailieunhanh - Hazardous and Radioactive Waste Treatment Technologies Handbook - Chapter 7

-Khí điều khiển cho các hệ thống xử lý chất thải hỗn hợp nhiệt Nicholas quốc gia Soelberg Idaho Cơ khí và môi trường phòng thí nghiệm Idaho Falls, Idaho Giới thiệu Hỗn hợp xử lý chất thải thường được yêu cầu để đáp ứng các mục tiêu điều trị bao gồm (1) việc phá hủy các chất hữu cơ độc hại trong chất thải, giảm khối lượng (2), và (3) ổn định của các kim loại độc hại và hạt nhân phóng xạ trong các hình thức chất thải leachable ít hơn và bền hơn cuối cùng như bông thủy tinh, gốm. | Chapter Seven 2001 by CRC Press LLC 7 Off-Gas Control for Mixed Waste Thermal Treatment Systems Nicholas Soelberg Idaho National Engineering and Environmental Laboratory Idaho Falls Idaho Introduction Mixed waste treatment is often required to meet treatment objectives that include 1 destruction of hazardous organics in the waste 2 volume reduction and 3 stabilization of hazardous metals and radionuclides in less leachable and more durable final waste forms such as vitreous ceramic or cement-stabilized products. Thermal treatment to destroy and ultimately oxidize hazardous organics and reduce the mass and volume of mixed wastes together with stabilization of the inorganic components has been used at many facilities worldwide IAEA 1989 . For example in the United States incineration or treatment that is demonstrated to be equivalent to incineration of Department of Energy DOE combustible mixed wastes is generally required to meet Resource Conservation and Recovery Act RCRA Land Disposal Restriction LDR treatment standards and requirements Site Treatment Plan commitments and Path To Closure commitments. Other waste streams such as radioactive liquid wastes currently stored in liquid storage tanks at the Idaho National Engineering and Environmental Laboratory INEEL Idaho Nuclear Engineering and Technology Center INTEC at the Hanford Site in Washington state and at the Savannah River Site in South Carolina may also require treatment to reduce waste volume destroy hazardous organic compounds and separate or stabilize the radionuclides and hazardous metals in a better waste form for final disposal. Thermally treating mixed wastes can produce off-gas that contains pollutants including particulate matter PM radionuclides toxic metals organic products of incomplete combustion PICs polychori-nated dibenzo p dioxins and polychlorinated dibenzofurans D Fs and acid gases. Increasingly strict regulatory standards and increasing public concerns are forcing operators of mixed .