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RECLAIMED WASTE WATER FOR GROUNDWATER RECHARGE 1
Author(s) -
Baier Dwight C.,
Wesner G. M.
Publication year - 1971
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1971.tb05019.x
Subject(s) - reclaimed water , environmental science , aquifer , clogging , effluent , land reclamation , groundwater recharge , groundwater , environmental engineering , water quality , wastewater , waste management , injection well , piezometer , engineering , geotechnical engineering , ecology , archaeology , biology , history
. The Orange County Water District has conducted studies in waste water reclamation and groundwater recharge since 1965. The work has been done in three phases: (1) Study in both laboratory and pilot‐scale units on the feasibility of reclaiming trickling filter effluent for injection through wells into confined aquifers; (2) long‐term injection study to determine the fate of injected reclaimed water and to observe the performance of a multi‐casing injection well; (3) testing alternative treatment methods in a 25,000 gpd pilot plant to solve the water quality problems which developed during the injection study. The reclaimed trickling filter effluent was found to be injectable and did not cause excessive well clogging. The multi‐casing injection wells performed very satisfactorily. The reclaimed water would be acceptable for domestic use after travel through 500 feet of a confined aquifer in that bacteria, virus and toxic material were consistently absent. However, the odor and taste which persisted in the injected reclaimed water and the high concentration of dissolved inorganics are undesirable characteristics. Methods to eliminate the odor are being tested at the present time. A cooperative project with the Office of Saline Water is under way to develop a source of desalted seawater to blend with reclaimed waste water.