T/CI 089-2022 Asbestos Emission Control Technology Specification

Scope

Scope: This document specifies the general technical requirements for the treatment of arsenic-containing flue gas in various industries, including technical terms and definitions, and requirements for the resource-oriented utilization of arsenic-containing flue gas. This document is applicable to the treatment of arsenic-containing flue gas in non-ferrous metallurgy and various industries. After arsenic precipitation, the concentrated acid is subjected to H2S mineralization, reducing the arsenic concentration in the concentrated acid. It can be used as an acidifier for fuming sulfuric acid in subsequent systems and serve as a technical basis for environmental impact assessments of industrial construction projects, the design and construction of environmental protection facilities, environmental protection acceptance of construction projects, and the operation and management of constructed facilities after commissioning. Main technical contents: 4.1 The arsenic-containing flue gas must ensure that the exhaust gas negative pressure is above 300 Pa. 4.2 The concentrated acid arsenic precipitation technology requires the installation of high-temperature dust removal equipment in the upstream process. The high-temperature dust removal technology scheme is not limited, and the F and Cl elements in the flue gas must be below 10ppm/mol to meet the requirements for acid precipitation and arsenic removal. 4.3 The new technology of arsenic removal from flue gas by concentrated acid precipitation can successfully reduce the arsenic content in the flue gas to 1mg/m3. 4.4 The concentrated acid arsenic precipitation technology can be applied to flue gas purification equipment with a small footprint and compact layout. 4.5 The arsenic-containing flue gas devices and concentrated acid arsenic precipitation devices shall comply with the current relevant policies, standards, norms, and procedures of the state. The arsenic-containing flue gas treatment technology process shall meet

Development Information

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