Temperature dependence of infiltration rate during large scale water recharge into soils
2003
Lin, Chunye | Greenwald, Dan | Banin, A.
We report the results of a systematic long-term study of infiltration rate (IR) in a large scale effluent recharge plant, showing a significant dependence of the infiltration rate on temperature (T). Water level and T were continuously monitored and recorded in several infiltration basins of an operating wastewater treatment plant (WWTP) during the course of a 4-yr study of basin geochemistry and performance. Infiltration rates were calculated from the slope of linear plots of water level vs. time during the drainage phase. Systematic interseasonal variations of IR were observed and were strongly correlated to water T Calculations showed that the variation of IR with T was generally 1.5 to 2.5 times larger than that predicted from effluent viscosity changes per se, suggesting the possible involvement of other T-dependent factors. This may have profound effects on the overall efficacy of wastewater reclamation and other water-recharge operations.
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