Dust Control and Air Cleaning covers various areas of concerns in the management of airborne particles and air sanitization. The title provides a comprehensive coverage of the methods in regulating air quality The coverage of the text includes airborne particles and health; the dynamics of particles; and sampling methods. The selection details various air purification methods and technologies such as removal of particles by wet scrubbing; cyclone dust separators; and filter materials and practical filters. The book will be of great use to student and professional building services engineers and technicians.
Throughout the mining and processing of minerals, the mined ore undergoes a number of crushing, grinding, cleaning, drying, and product sizing operations as it is processed into a marketable commodity. These operations are highly mechanized, and both individually and collectively these processes can generate large amounts of dust. If control technologies are inadequate, hazardous levels of respirable dust may be liberated into the work environment, potentially exposing workers. Accordingly, federal regulations are in place to limit the respirable dust exposure of mine workers. Engineering controls are implemented in mining operations in an effort to reduce dust generation and limit worker exposure.
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
This publication deals with the common and well-recognised problem of control of nuisance dust emissions from construction and civil engineering activities. Fine particles can be carried from sites even in light winds and may have an adverse effect on the local environment and on the health of local residents, as well as those working on site. It indicates how dust and fine particle generation from construction and demolition activities can be substantially reduced. Dust control measures are outlined for specific processes (such as the movement of vehicles and construction plant, materials handling and storage, cutting, grinding, grouting, grit blasting, concrete batching and pouring), and advice is also given on pre-project planning, implementation and site management - together with checklists for use by all sizes and types of construction activity.
The Sustainability Committee of the American Society of Civil Engineer s Structural Engineering Institute (ASCE SEI) prepared these guidelines to advance the understanding of sustainability in the structural community and to incorporate concepts of sustainability into structural engineering standards and practices. This book will educate and guide structural engineers as they meet the challenge to design and construct a sustainable built environment. The guidelines are organized into five sections: Sustainable Design and Construction, Sustainable Strategies, Building Materials, Infrastructure, and Case Studies. Although many of the subjects presented are related, each section and the related subsections have been written to stand alone, allowing this report to be used as a practical reference. This report was written for structural engineers, but related disciplines will also benefit from the contents. The book includes an important section on infrastructure because, many of the concepts and ideas presented in this guide relate to infrastructure, as well as design and construction.
Consolidates information developed by industry and government laboratories on dust control engineering techniques. Designed for the minerals processing industry, the technology applies to other industries as well. Dust, its prevention, formation and control are examined, including wet and dry control systems, personal protection, and testing methods.
"Respirable dust exposure has long been known to be a serious health threat to workers in many industries. In coal mining, overexposure to respirable coal mine dust can lead to coal workers' pneumoconiosis (CWP). CWP is a lung disease that can be disabling and fatal in its most severe form. In addition, miners can be exposed to high levels of respirable silica dust, which can cause silicosis, another disabling and/or fatal lung disease. Once contracted, there is no cure for CWP or silicosis. The goal, therefore, is to limit worker exposure to respirable dust to prevent development of these diseases. The passage of the Federal Coal Mine Health and Safety Act of 1969 established respirable dust exposure limits, dust sampling requirements for inspectors and mine operators, a voluntary x-ray surveillance program to identify CWP in underground coal miners, and a benefits program to provide compensation to affected workers and their families. The tremendous human and financial costs resulting from CWP and silicosis in the U.S. underground coal mine workforce are shown by the following statistics: 1. During 1970-2004, CWP was a direct or contributing cause of 69,377 deaths of U.S. underground coal mine workers. 2. During 1980-2005, over $39 billion in CWP benefits were paid to underground coal miners and their families. 3. Recent x-ray surveillance data for 2000-2006 show an increase in CWP cases. Nearly 8% of examined underground coal miners with 25 or more years of experience were diagnosed with CWP. 4. "Continuous miner operator" is the most frequently listed occupation on death certificates that record silicosis as the cause of death. In light of the ongoing severity of these lung diseases in coal mining, this handbook was developed to identify available engineering controls that can help the industry reduce worker exposure to respirable coal and silica dust. The controls discussed in this handbook range from long-utilized controls that have developed into industry standards to newer controls that are still being optimized. The intent was to identify the best practices that are available to control respirable dust levels in underground and surface coal mining operations. This handbook provides general information on the control technologies along with extensive references. In some cases, the full reference(s) will need to be consulted to gain in-depth information on the testing or implementation of the control of interest. The handbook is divided into five chapters. Chapter 1 discusses the health effects of exposure to respirable coal and silica dust. Chapter 2 discusses dust sampling instruments and sampling methods. Chapters 3, 4, and 5 focus on dust control technologies for longwall mining, continuous mining, and surface mining, respectively. Finally, it must be stressed that after control technologies are implemented, the ultimate success of ongoing protection for workers depends on continued maintenance of these controls. NIOSH researchers have often seen appropriate controls installed, but worker overexposures occurred because of the lack of proper maintenance of these controls." - NIOSHTIC-2
