Liners / Pond & Lagoon

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Liners / Pond & Lagoon

Animal waste lagoons and wastewater systems are used to prevent liquids from leaking into nearby groundwater. Many existing lagoons have been built with no liners and using compacted clay. This construction erodes away, leaving the ground saturated with wastewater. Vegetation then grows into the walls, damaging their integrity and strength.

The liners have the strength to handle ice build-up and the ability to be exposed to harsh sunlight. Compared to CCL, GCL and PVC liners, HDPE materials are relatively low cost.
 


A wastewater pond is among the least expensive onsite treatment options, and maintenance is not excessive. A pond should be the first consideration for wastewater systems where soils have severe limitations for soil absorption systems but are well suited for pond construction and enough area is available to meet separation distance requirements.

Facultative lagoons are the most common form of aquatic treatment-lagoon technology currently in use. The water layer near the surface is aerobic while the bottom layer, which includes sludge deposits, is anaerobic. The intermediate layer is aerobic near the top and anaerobic near the bottom, and constitutes the facultative zone. Aerated lagoons are smaller and deeper than facultative lagoons. These systems evolved from stabilization ponds when aeration devices were added to counteract odors arising from septic conditions.