Containment
Common elements in all containment structures include Soil Stabilization and Construction
Techniques/ Materials.
When site and pond size have been specified, soil core samples are taken for laboratory analysis. The tests will include particle size determination using ASTM-D-422 Method, as well as a hydrometer test without STRATEZYME to demonstrate the condition of the soil clay content. Laboratory permeability tests must then be run on soil samples with and without the appropriate STRATEZYME treatment. Tests should be conducted over a wide range of densities so compaction requirements may be specified. If soil tests show a two-micron clay content of less than 20%, it is often necessary to use borrow soil to achieve an adequate clay concentration with the on-site soil.
CONSTRUCTION OF SANITARY LANDFILLS
WASTE CONTAINMENT STRUCTURES
PONDS, SEWAGE AND LIQUID CONTAINMENT
Soil stabilization, construction techniques and materials are the major components of any type of containment structure. Natural clay liners are geologically stable and have longer projected life expectancy than most man-made materials. Clay liners are self-sealing when put under stress. STRATEZYME works well with clay soils to assist in compaction and density. It also enhances cohesiveness and binding of soil particles.
Type of material to be contained
· Water / other liquids
· Combination liquid / solid materials
· Mixture of inorganic and organic wastes
· Anticipated level of toxicity
Engineers use well-defined specifications in their designs of containment structures. The design and supervision insures that a proper liner has been installed and that it will meet the intended use over a specified time. Installation costs also play an important role in design. Use of soil-clay liners has been very cost effective and meets long-term design standards.
SEALING LAKES, PONDS OR LANDFILLS
When an existing pond or lake is filled with water and less than 8 feet in depth, use one gallon of STRATEZYME for every 6,000 square feet of surface area (8 gallons per surface acre). Pour STRATEZYME into the water from the windward side and around the perimeter or across the surface if a boat or pump can be used. Stir up the silt from the bottom of the pond any way possible (dragging chains sometimes works). Fines placed into suspension together with the STRATEZYME will then migrate to the seepage areas. Do not add water for 3 days. STRATEZYME disperses clay and colloidal materials into the voids between each grain of soil and causes a catalytic bonding process, creating a strong, tightly compacted stratum that resists water penetration.