Application Of Well Condition Assessment And Rehabilitation Techniques

Offering techniques for both assessing the condition of water wells and rehabilitating wells, with emphasis on new chemical treatment techniques and adaptations of technologies from other industries, this report recommends the types of treatments that may be most appropriate for various rehabilitation needs. Includes a CD-ROM with appendices.

No one has recorded when well digging started, but surely humans imitated elephants in digging holes in the sand to access cooler water that didn't make the children sick. Eventually, humankind began to redesign, maintain, and repair the wells they constructed, but when wells became "commodities" in the twentieth century, this maintenance ethic was

Although microorganisms can be found virtually anywhere on our planet, from clouds to soils to oceans, they are often poorly understood when examining issues related to groundwater and water wells. Focusing on the impact of microorganisms on groundwater and water wells, Practical Manual of Groundwater Microbiology, Second Edition presents ov

Capitalize on the First All-in-One Guide to Monitoring, Identifying, and Solving Problems of Ageing Water Wells Water Well Rehabilitation and Reconstruction offers water resource professionals the first comprehensive guide to the mechanical, chemical, and microbiological ageing processes of water wells. Filled with examples from Germany, the Netherlands, the United States, the United Kingdom, and Australia, this landmark reference provides the scientific background needed to understand well aging_and perform effective rehabilitation, reconstruction, and monitoring. You will find guidance on state-of-the-art testing and maintenance methods, as well as information on legal and environmental issues, such as the transport, application, and disposal of chemicals. Using SI and U.S. customary units throughout, with a handy conversion table included, Water Well Rehabilitation and Reconstruction enables you to: Identify and quantify problems affecting well performance Select rehabilitation methods appropriate for specific problems Harness methods for replacement or closure of a well if rehabilitation fails Inside This Landmark Water Well Resource • Introduction • Elements of Well Hydraulics and Well Operation • Chemical Ageing Process • Mechanical Causes of Well Ageing • Identification of Ageing Processes and Performance Assessment of Wells and Well Rehabilitations • Economics of Well Rehabilitation and Reconstruction • Mechanical Rehabilitation Techniques • Chemical Rehabilitation Techniques • Repair, Reconstruction, and Decommissioning of Wells • Practical Well Rehabilitation • Prevention • The Ten Dos and Don'ts of Water Well Rehabilitation • Appendices

The continued lack of access to adequate amounts of safe drinking water is one of the primary causes of infant morbidity and mortality worldwide and a serious situation which governments, international agencies and private organizations are striving to alleviate. Barriers to providing safe drinking water for rural areas and small communities that must be overcome include the financing and stability of small systems, their operation, and appropriate, cost-effective technologies to treat and deliver water to consumers. While we know how to technically produce safe drinking water, we are not always able to achieve sustainable safe water supplies for small systems in developed and developing countries. Everyone wants to move rapidly to reach the goal of universal safe drinking water, because safe water is the most fundamental essential element for personal and social health and welfare. Without safe water and a safe environment, sustained personal economic and cultural development is impossible. Often small rural systems are the last in the opportunity line. Safe Drinking Water in Small Systems describes feasible technologies, operating procedures, management, and financing opportunities to alleviate problems faced by small water systems in both developed and developing countries. In addition to widely used traditional technologies this reference presents emerging technologies and non-traditional approaches to water treatment, management, sources of energy, and the delivery of safe water.

Many water utilities have only a limited knowledge of the structural condition of their underground assests. In order to maintain optimum serviceability, it is increasingly important that utilities gain a better understanding of the current condition and performance of these buried assets. Regular inspection and condition assessment of pipelines can greatly assist utilities with developing robust and cost-effective operational maintenance programs, which will optimize capital expenditure whilst minimizing risk. The aim of the project was to conduct a state-of-the-art literature review of non-interruptive condition assessment inspection devices for large diameter transmission mains (greater than 12 inches). In addition, an expert panel workshop was to be held to review business needs and drivers, the performance of existing technologies, and future underground asset condition assessment research needs. Originally published by AwwaRF for its subscribers in 2004.

Life-Cycle and Sustainability of Civil Infrastructure Systems contains the lectures and papers presented at the Third International Symposium on Life-Cycle Civil Engineering (IALCCE 2012) held in one of Vienna‘s most famous venues, the Hofburg Palace, October 3rd-6th, 2012. This volume consists of a book of extended abstracts (516 pp) and a DVD-ROM