1st Edition

Water Well Rehabilitation A Practical Guide to Understanding Well Problems and Solutions

By Neil Mansuy Copyright 1999
    192 Pages
    by CRC Press

    188 Pages
    by CRC Press

    Well rehabilitation techniques have been the focus of major advancements in recent times. Environmental engineers can keep pace with those changes with the book Water Well Rehabilitation.
    Written from a microbiological viewpoint, the text outlines proven solutions to production problems in all types of wells.
    That perspective frequently yields new ideas and concepts, contrary to prevalent thoughts in mainstream literature on the subject. This is especially true in discussion of iron related bacterial sources, and details concerning unsafe bacterial samples and the contamination of wells.

    Introduction Definitions Aquifers Consolidated Formations Unconsolidated Formations Water Entrance Velocities Well Hydraulics Natural Development Screen Openings Gravel Pack Thickness Sanitary Well Seal Annular Seal Unsafe Coliform Results Drainage from Well Head Screen-Blank-Screen Initial Well Development Pump Testing Specific Capacity Draw Down Discharge Capacity Oxygen Well Efficiency Identification of Problems in a Well Water Well Rehabilitation Benefits Unsafe (Bacteriological) Water Quality Issues Lost Capacity Zone of Fouling Build Up of Materials in Wells Ground Water Microbiology Current Bacterial Testing Methods Phosphorus Treatment Products Other Organisms in Ground Water Systems Surface Water Infiltration Well Screen Slot Design Cemented Gravel Pack Rate of Lost Capacity Shock Chlorination Corrosion Problems Red Water Problems Single Well Water Quality Variations Odor Problems Unsafe Bacterial Loadings Hygiene Risk Survey on Wells Well Hydraulics Position of Biofouling Relative to the Well Screen Suction Flow Control Devices Major Water Well Concerns Economic Analysis of Water Well Rehabilitation Nitrate Problems in Wells Sulfur Cycle in Ground Water Causes of Well Plugging Problems Tests for Bacteria Causing Plugging Problems Diagnosis of Problems in a Plugging Well Water Well Rehabilitation Techniques Stages in Rehabilitation PVC Wells and Biofouling Rate of Iron Deposition Chemical Application in Water Well Rehabilitation Summary of Application Methodologies Selection of Acids Advances in Technologies for Water Well Rehabilitation Use of Liquid Carbon Dioxide in Water Well Rehabilitation Efficacy of Using Pellet Chlorinators in Wells Environmental Safety Concerns Well Development Preventative Maintenance of Wells Chlorine Chemistries Final Summation


    Mansuy, Neil