Technical Background Document On Control Of Fugitive Dust At Cement Manufacturing Facilities, Draft.
This Technical Background Document (TBD) summarizes the bases for EPA's proposed performance standards and technology-based standards (described below) for controlling fugitive emissions of cement kiln dust (CKD). Chapter 2 provides an overview of the reasons for the Agency's concern regarding fugitive dust, including the physical and chemical characteristics of CKD; the physical/climatological settings at cement facilities; and current CKD management practices. This chapter also discusses EPA's reasons for developing fugitive dust control standards, including descriptions of documented air damages, estimates of population effects from exposure to airborne CKD, and on-site observations. Chapter 3 describes the technology options for controlling CKD air emissions that EPA examined and the estimated effectiveness of each option. Chapter 4 identifies the proposed standards for controlling fugitive dust. Chapter 5 discusses issues related to implementation of the proposed standards and provides estimates of emissions following application of the proposed technology-based standards at two example facilities.
EPA is proposing a performance of standard that requires covering or otherwise managing CKD to control fugitive dust. The proposed standards will apply to new and existing cement kiln dust landfills, except units closed prior to the effective date of the rule. To meet the standard, the owner/operator would cover or otherwise manage CKD in a manner to control wind dispersal.
To meet the performance standard, EPA also is proposing technology-based design standards for three key points in the CKD management and disposal handling train. These points are: 1) the point of temporary storage of CKD at the facility after it is removed from a dust collection device prior to sale or final disposal; 2) trucks that transport the CKD to the disposal site; and 3) disposal of the CKD in an on-site landfill or monofill. EPA is proposing the following standards for these emission points:
1. Temporary storage at the facility: enclosure (e.g., in a tank, building, or container);
2. Transport of CKD from the plant to the landfill or monofill: covered trucks; and
3. Landfill disposal: conditioned CKD covered by a barrier that prevents erosion.
|Office of Solid Waste and Emergency Response|
|Office of Solid Waste|
|No division specified|