land treatment

sanitation engineering

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Last updated

June 30, 2026

Quick Summary

Land treatment is a method of wastewater disposal where secondary effluent is applied to the ground. Natural processes, such as vegetation absorption and soil percolation, further purify the water. There are three types: slow-rate (irrigation), rapid infiltration (using recharge basins), and overland flow (spraying onto inclined terraces). This method can recycle wastewater for beneficial uses, providing moisture and nutrients for vegetation, and can also recharge groundwater aquifers. However, it requires significant land area, and its feasibility can be limited by soil type and climate.1

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wastewater treatment
Land treatment
In some locations, secondary effluent can be applied directly to the ground and a polished effluent obtained by natural processes as the wastewater flows over vegetation and percolates through the soil. There are three types of land treatment: slow-rate, rapid infiltration, and overland…
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In some locations, secondary effluent can be applied directly to the ground and a polished effluent obtained by natural processes as the wastewater flows over vegetation and percolates through the soil. There are three types of land treatment: slow-rate, rapid infiltration, and overland…
Read More