Your search found 4 records
1 Tajrishy, M. A.; Hills, D. J.; Tchobanoglous, G.. 1994. Pretreatment of secondary effluent for drip irrigation. Journal of Irrigation and Drainage Engineering, 120(4):716-731.
Drip irrigation ; Irrigation equipment ; Irrigation design ; Effluents ; Wastewater irrigation ; Water quality
(Location: IWMI-HQ Call no: PER Record No: H014963)
A pilot-scale treatment system, for developing drip-irrigation pretreatment criteria, was designed, installed, and operated intermittently over 5,300 h using activated sludge secondary effluent. Principal unit processes studied were granular-medium filtration and screen filters for removal of suspended solids, and chlorination treatment at various injection frequencies and concentrations to prevent biofilm formation in emitters and distribution lines. Two types of 4 L/h (1 gal./h) drip emitters were tested - automatic self-flushing and tortuous-path turbulent-flow emitters. Adequate filtration reduced both the required frequency of chlorination and lateral flushing. Intermittent chlorination with 2 mg/L free residual chlorine during the last hour of an irrigation cycle was found as effective as continuous chlorination with 0.4 mg/L free residual chlorine in preventing biofilm formation in emitters and distribution networks. Pretreatment recommendations for these types of emitter designs are presented.
2 Tanaka, H.; Asano, T.; Schroeder, E. D.; Tchobanoglous, G.. 1998. Estimating the safety of wastewater reclamation and reuse using enteric virus monitoring data. Water Environment Research, 70(1):39-51.
Wastewater ; Effluents ; Water reuse ; Risks ; Waterborne diseases ; Assessment ; Public health ; Diseases ; Monitoring ; Domestic water ; Water supply / USA / California
(Location: IWMI-HQ Call no: P 6875 Record No: H034773)
3 Levine, A. D.; Tchobanoglous, G.; Asano, T. 1991. Size distributions of particulate contaminants in wastewater and their impact on treatability. Water Research, 25(8):911-922.
(Location: IWMI-HQ Call no: P 6898 Record No: H034969)
4 Tanaka, H.; Asano, T.; Schroeder, E. D.; Tchobanoglous, G.. 1998. Estimating the safety of wastewater reclamation and reuse using enteric virus monitoring data. Water Environment Research, 70(1):39-51.
Wastewater ; Water quality ; Water reuse ; Estimation ; Effluents ; Public health ; Risks ; Diseases ; Filtration / USA / California
(Location: IWMI-HQ Call no: P 6899 Record No: H034970)
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