Lubbock Land Treatment System Research and Demonstration Project. Volume 2. Percolate Investigation in the Root Zone

摘要

The Lubbock Land Treatment System Research and Demonstration Project, funded by Congress in 1978 (H.R. 9375), was designed to address the various issues concerning the use of slow rate land application of municipal wastewater. The project involved the (1) physical expansion of an overloaded 40-year old Lubbock slow rate land treatment system; (2) characterization of the chemical, biological and physical conditions of the ground water, soils and crop prior to and during irrigation with secondary treated municipal wastewater; (3) evaluation of the health effects associated with the slow rate land application of secondary effluent and (4) assessment of the effects of hydraulic, nutrient and salt mass loadings on crops, soil and percolate. Percolate investigations, described in the volume, evaluated the fate of infiltrating nutrients from applied wastewaters in the root zone at test plots located on both study farms.