Microbial Quality of Water Supply in Distribution Systems. Questo articolo non è disponibile.Microbial Quality of Water Supply in Distribution Systems

Hidden problems, buried deep in the pipe networks of water distribution systems, are very serious potential threats to water quality. Microbial Quality of Water Supply in Distribution Systems outlines the processes and issues related to the degradation of water quality upon passage through networks of pipes, storage reservoirs, and standpipes on its way to the consumer. The risks associated with biofilm accumulation, bacteria, and other contaminants are discussed in great detail.
In addition to its excellent microbiological coverage of organisms in drinking water and biofilms in distribution systems, Microbial Quality of Water Supply in Distribution Systems provides clear treatments of the technical and public communication issues most commonly affecting the quality of water and water supply systems. The inclusion of numerous case histories in this new book makes it a complete reference source for anyone concerned with water quality and water distribution systems.

Characterizing the Distribution System: Microbial Issues
Distribution System Habitats
Distribution Water Temperature Trends
Water Supply Transient Time
Operational Factors
Joint Responsibility for Water Quality
Creating Microbial Quality in Drinking Water
Raw Source
Microbial Composition
Microbial Control through Treatment
Water Supply Storage and Distribution
Building Plumbing Networks
Attachment Devices
Biological Profiles in Drinking Water
Primary Microbial Groups
Free-Living Amoeba and Macroinvertebrates: Protectors and Amplifiers of Bacteria
Opportunistic Organisms and the Water Supply Connection
Biofilms in Water Distribution Systems
Characterizing Biofilm
Nutrients: A Case for Biological Instability of Water Supply
Water Temperature Stimulation
Physical Status of Pipe Sediments
Scenarios for Undetected Coliform Passages
Evaluating the Public Health Significance of Biofilm
Characterizing Microbial Quality in Water Supply
Introduction
Heterotrophic Bacteria
Coliform Detection
Substitute Criteria: A Word of Caution
Nuisance Organisms
Infrastructure Construction Acceptance
Laboratory Credibility through Certification
Monitoring Strategies to Characterize Water Quality
Introduction
Evaluating the Strategy
Sample Collection and Sample Stability in Transit
Special Considerations - Small Systems Networks; Large System Characteristics; Consolidated Systems
Coliform Occurrences in Compliance Monitoring
Special Purpose Monitoring
Microbial Breakthroughs in Changing Source, Treatment, or Supply Parameters
Introduction
Factoring Source Water Characteristics
Plant Operating Practices
Treatment Modifications
Disinfection Alternatives
Impacts on Distribution Water Quality
Waterborne Pathogen Invasions: A Case for Water Quality Protection in Distribution
Characterizing Freshwater Quality
Waterborne Pathogenic Agents
Utilizing Multiple Barriers to Pathogen Passage
Waterborne Pathogen Invasions: Case History Examples
Pathogen Search in Waterborne Outbreaks
In Retrospect - Municipal Sewage Collection Systems; Stormwater Runoff; Non-Metered Service; Unaccounted Water Losses; Water Storage Tank Structures; System Flushing; Distribution Residuals; Water Pressure
Responses to Microbial Quality Changes in Water Supply Distribution
Laboratory Assistance
Initial Action Responses
Persistent Non-Compliance Response
Sanitary Survey Approach
Searching for Risks in Water Supply
In Retrospect
Public Awareness of Water Quality Problems
Public Perception of Health Risks in Water Supply
Mass Media and Public Awareness
A Study of Media Attention to Technical Reality
Public Relations Programs
Public Awareness: What Have We Learned?
Appendix: Field Investigation Check List
Index