Wastewater Collection System Maintenance - Michael J. Pa

. .

Résumé :
Preface , Acknowledgements, Abbreviations and Acronyms , Introduction - In this Book - Scope of this Book - Model System - Wastewater Collection System Maintenance Defined - The Challenge - The Solution - Past, Future, Present - Conclusion , Health and Safety in Wastewater Collection Systems - In this Chapter - Introduction - Priorities - Responsibilities - Safety First - Tailgate Safety Meetings - Health and Safety - Safety Training - Hazard Recognition - Atmospheric Hazards - Chemical Hazards - Sewer Gas - Confined Space Entries - Traffic Safety - Health and Disease - Other Hazards - Gloves - Other Issues - Conclusion - Safety Glossary - Safety References - Additional Safety Resources , Types of Sewers - In this Chapter - Conventional Sewers - Lift Stations - Storm Sewers - Alternative Collection Systems - Size of Sanitary Sewers - Conclusion , Pipe Types - In this Chapter - Flexible Pipes - Rigid Piping - Other Topics - Conclusion - Pipe Type - References , Line Cleaning Equipment and Techniques - In this Chapter - Line Cleaning - Line Cleaning - Intervals - Line Cleaning Techniques - Flushing - Hydraulic Line Cleaning Devices - Rodding - Conclusion - Line Cleaning References , Jetting Operations - In this Chapter - Introduction to Jetting Operations - How Jetting Works - Purpose - Jetting Techniques - Return Flow Observation - Off-Road Jetting - Easement Jetting - Easement Jetter Operation - Chemical Jetting - Jetting Objectives - Jet Truck Components - Water Tanks - Water Tank Types - Water Pumps - Plumbing - Water Delivery Systems - Gauges - Troubleshooting and Jet Truck Maintenance - Pump Power Systems - Conclusion , Nozzle Technology - In this Chapter - Volume and Pressure - Torque and Thrust - Jetting Nozzles - Nozzle Types - Root-Cutting Tools and Equipment - Hydraulic Root Saws - Skids - Root-Cutting Attachments - Chain Knockers - Tornado Spinners - Conclusion , Purchasing a Jetter - In this Chapter - Introduction - Jet Truck Speci...

Biographie:
it strives to prevent problems from occurring rather than reacting to difficult situations and putting out fires. This book examines problems shared by all agencies: roots, grease, deterioration, hydraulic inefficiencies and structural defects. New solutions to age-old problems are applied: TV inspection and video interpretation, rehabilitation analysis and trenchless technologies. Computerized maintenance management and GIS softwares are discussed. Jetting, line cleaning and exciting developments in nozzle technology are included. Roots and chemical root control foam, wastewater control and grease are major topics as well. Wastewater Collection System Maintenance shares insights drawn from operator experience, trial and error, successes and failures in the field, interviews and years of research and studies. A user-friendly rating and evaluation system is explained and applied to field conditions. Equipment operation and maintenance, and tricks of the trade are also discussed. As cities grow, new systems are extended upstream from older sewers. Many of these core drainage basins are now under capacity and in need of capital improvement projects. There are approximately 600,000 miles of sanitary sewers in the country. Nationwide, there exists a huge backlog of sewer pipes that need rehabilitation. Replacement would cost many billions of dollars. Maintenance operators are entrusted with the care and feeding of an aging sewer infrastructure....

Sommaire:
Michael J. Parcher...