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Impermeable Floating Covers
Impermeable floating covers are made with HDPE, XR-5, and PPR geomembranes. The covers can be utilized to help maintain better sanitary conditions for the storage of potable water. These covers stop evaporation loss. Covers can be used to capture methane gas from waste lagoons. When you create a gas-tight seal around the perimeter, the gases can be drawn off and disposed by scrubbing, burning, or used as fuel. These covers segregate the rainwater from the wastewater. The impermeable floating cover is designed to operate from an empty lagoon to the designed water level height. The cover weight system is designed to form folds in the cover to provide tension which allows excess material for level fluctuation. The folds collect rainwater which can be easily pumped off from a central point. Sample ports and hatches can be incorporated in the cover. These provide access for samples and maintenance of installed equipment. Case Study: Rayonier Wastewater Treatment Improvements
The existing on-site wastewater treatment plant for this paper mill was overloaded as a result of increased production. The city was receiving odor complaints and the plant operators were not able to stay within discharge limits. The plant has two separate waste streams, one of which was the major contributor to the problems. The plant environmental and engineering people found a solution to the problem. |
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