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Nutrient Removal Using Microalgae In Wastewater-Fed High Rate Ponds, Matthew N. Rodrigues
Nutrient Removal Using Microalgae In Wastewater-Fed High Rate Ponds, Matthew N. Rodrigues
Master's Theses
This thesis discusses the mechanisms associated with the removal of organic matter, nitrogen and phosphorus in wastewater-fed high rate algae ponds (HRAP) designed to operate as triplicates. Research was conducted at the San Luis Obispo Water Reclamation Facility (SLOWRF) as a pilot-scale study of nine 30-square meter ponds one foot in depth. During period of study, triplicates were operated at hydraulic retention times (HRT) of 4, 3 or 2-days. Main objectives for the study were to determine minimum HRTs required to achieve secondary and tertiary treatment. Experimental conditions such as CO2 supplementation, nighttime aeration and operation of ponds in …
Settling Performance In Wastewater Fed High Rate Algae Ponds, Elliott Blake Ripley
Settling Performance In Wastewater Fed High Rate Algae Ponds, Elliott Blake Ripley
Master's Theses
Although high rate algae ponds (HRAPs) are a proven wastewater treatment technology with numerous environmental, social, and economic benefits, their widespread use has been hindered by inconsistent and unreliable settling performance. Hence, the goal of this thesis is to investigate how specific operational parameters affect the settling performance of HRAPs. Nine HRAPs (30 m2 surface area, 0.3 m depth) were operated as three triplicate sets, with each set run on either a 2, 3, or 4 day HRT continuously from January 25, 2012 through April 11, 2013. Settling performance was determined (i) by measuring the TSS of Imhoff cone …