Tough Pollution Laws Spur Use of Impermeable Liners

by Eugene E. Dallaire, Asst. Editor; Civil Engineering Magazine, New York, NY 10017,

Serial Information: Civil Engineering—ASCE, 1975, Vol. 45, Issue 5, Pg. 63-67

Document Type: Feature article


Consultants have increasingly been using flexible, synthetic linings for a variety of civil engineering applications. The U.S. Dept. of Agriculture has been using membranes to line irrigation canals, rather than using concrete or asphalt. A number of potable-water storage ponds, especially in water-short areas, have been lined with plastic sheet, the largest being an 88-acre reservoir in Williams, Arizona. A big and growing area for liners is the wastewater field, including the storage and treatment of both municipal and industrial wastes. Membranes are also used for covering reservoirs, to protect the water from air-borne pollutants. Here are the pros and cons of using these liners and the circumstances under which they are most attractive, least attractive. The article also examines the impact of recent Federal environmental legislation, and presents several case histories.

Subject Headings: Pollution | Linings | Consulting services | Membranes | Asphalt concrete | Reservoirs | Municipal wastewater | Industrial wastes | Arizona | United States

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