Integrated Management of Sugarcane Mill Wastewater for Bioenergy Production and Drip Irrigationby P. Y. Yang, Univ of Hawaii at Manoa, Honolulu, United States,
L. J. Chang, Univ of Hawaii at Manoa, Honolulu, United States,
S. A. Whalen, Univ of Hawaii at Manoa, Honolulu, United States,
Abstract: Based on the previous work of wastewater characterization and relevant literature review, a combined anaerobic (UASB) and aerobic (EAFB) treatment of supernatant of settled sugarcane mill wastewater for the application of drip irrigation was investigated. It has been found that the system can efficiently (≥ 99%) remove the organics and solids in wastewater within two days of hydraulic retention time provided. Also, it has been found that the combined treatment alternative (UASB + EAFB) for the application of drip irrigation is more cost effective than the alternative of UASB + AL. Thus, combined (UASB + EAFB) treatment for sugarcane mill wastewater provides not only for the removal of pollution potential and bioenergy production, but also for the reuse of the properly treated wastewater for drip irrigation in the land limited and populated areas.
Subject Headings: Wastewater treatment | Trickle irrigation | Aerobic processes | Soil pollution | Biomass | Anaerobic processes
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