In this study, a submerged aerated filter (SAF) using bottle caps as a support medium was evaluated. The system was fed with effluent from an upflow anaerobic sludge blanket system at ETE 2-South wastewater treatment plant, under different volumetric organic load rates (VOLRs). The population of a particular nitrifying microbial community was assessed by fluorescent in situ hybridization with specific oligonucleotide probes. The system showed an average removal of chemical oxygen demand (COD) equal to 76% for VOLRs between 2.6 and 13.6 kg COD m−3_media.day−1. The process of nitrification in conjunction with the removal of organic matter was observed from applying VOLRs lower than 5.5 kg COD m−3_media.day−1 resulting in 78% conversion of NH4+-N. As the applied organic load was reduced, an increase in the nitrifying bacteria population was observed compared with total 4′-6-diamidino-2-phenylindole (DAPI) stained cells. Generally, SAF using bottle caps as a biological aerated filter medium treating wastewater from an anaerobic system showed promising removal of chemical oxygen demand (COD) and conversion of NH4+-N.
Featured in Environmental Science & Engineering Magazine, February 2018 Edition
Through conversations with plant operators and personal experience servicing aeration equipment, the Aeration Industries’ team recognized the great importance of maintenance and safety for those servicing wastewater aeration equipment. The idea to develop a mount on a sliding pedestal with the goal to allow operators to maintain equipment safely on the walkway was derived. The secondary goal was to reduce the cost of maintenan...
Overview:
Located in the Banyuwangi Regency of Eastern Java, Rustam Shrimp Farm is the prototypical Indonesian shrimp growing operation. With rectangular, 1,000 square meter ponds and an intensive stocking density of 150 shrimp per m2, the farm demands an adequately mixed and oxygenated aquatic environment to ensure productivity and biosecurity.
Mr. Rustam, the farm owner, and Mr. Tarom, the lead farm technician, constantly monitor the ponds for disease and water quality. When the farm was established the ponds...
Overview
The Kalamazoo Lake, Sewer and Water Authority (KLSWA) In Michigan, USA, had all they could handle and more with their aging, failing aspirators, persistent fouling and ragging, and what seemed like an endless cycle of maintenance and repairs.
Challenge
KLSWA was consistently experiencing failing floats, ruined motors, debris-clogged propellers, and high maintenance and repair costs. They knew their existing plant needed significant rehabilitation, which included improving the reliability and effectivene...
OverviewIn 2012, the Middlebury, Indiana Wastewater Treatment Plant (WWTP) was faced with aging brush rotors and higher loads in their oxidation ditch system. When Mick Reese was hired as Plant Superintendent, the upgrade design was about 90% complete. The full system upgrade included adding an outer ring to the existing oxidation oval, construction of a new clarifier, controls building, and a sludge processing system. The plant upgrade also included a PLC based aeration control system capable of reducing energy...
Big Park Domestic Wastewater Improvement District in Arizona had constructed a new 500,000 gallons per day biological wastewater treatment system in 1997. As time passed, the aging plant was unable to keep up with increasing demands.ChallengesIn 2012, the District started working with Sunrise Engineering to find a solution that would work in their existing plant. Sunrise Engineering partnered with Aeration Industries International to upgrade the equalization basin, as well as the sludge digester/thickener.SolutionI...
Customer comments
No comments were found for The use of bottle caps as submerged aerated filter medium. Be the first to comment!