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E1jen GSF System Description <br /> Each GSF Module is made up of geotextile fabric and a plastic core material that work together to provide vertical surface area <br /> and oxygen transfer.The GSF System applies secondary treated effluent to the soil,increasing the soil's long-term acceptance rate. <br /> A Specified Sand layer provides additional filtration,and prevents saturated conditions. <br /> PRIMARY TREATMENT ZONE <br /> Perforated pipe is centered above the GSF Module to distribute septic effluent over and into corrugations created by the <br /> plastic core of the GSF Module. <br /> The Module's unique design provides increased surface area for biological treatment of nutrients and contaminants. <br /> Open air channels within the Module support aerobic bacterial growth on the Module's geotextile fabric interface, <br /> and promote oxygen in the system. <br /> An anti-siltation geotextile fabric covers the top and sides of the GSF Module to protect the system from the migration <br /> of fines. <br /> The GSF Module provides biomat management,and takes the burden of treatment and biomat development off of the <br /> native soil. <br /> SECONDARY TREATMENT ZONE <br /> Effluent drips into the Specified Sand layer and supports unsaturated flow into the native soil. <br /> The Specified Sand layer also protects the soil from compaction and helps maintain cracks and crevices in the soil. <br /> Native soil provides final filtration and allows for groundwater recharge. <br /> GSF SYSTEM OPERATION <br /> GSF Modules <br /> Treated Effluent <br /> WaterTable <br /> Effluent <br /> Geotextile Fabric Biomat <br /> Primary Untreated Effluent • 7k Treated Effluent <br /> Treatment •x f>> <br /> Zone • • • i <br /> V <br /> Secondary 0 • <br /> Treatment <br /> Zone • <br /> • Specified Sand <br /> men EWMWe_1 <br /> • <br />