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.
PROJECT DETAILS
LOCATION Chicago, Illinois, U.S.
CUSTOMER U.S. Army Corps of Engineers, for the Chicago O’Hare Reservoir
SOLUTION Aeration of wastewater treatment reservoir
TECHNOLOGIES 100-horsepower TORNADO® Surface Self-Aspirating Aerators
The Chicago area’s wastewater authority wanted to add an aeration system to its three storm and wastewater reservoirs to avoid stagnant water. Reservoirs often held wastewater for a significant amount of time before it could be processed by the treatment...
PROJECT DETAILS
LOCATION HaYogev rural residential development in Israel
CUSTOMER Moshav HaYogev
SOLUTION Wastewater Treatment Plant
TECHNOLOGIES Membrane aerated biofilm reactor (MABR) wastewater treatment
Revolutionary MABR product solution implemented at wastewater treatment plant in rural Israel
Background
HaYogev is a residential development in the rural area of Jezreel Valley, with 1,000 homes, agricultural fields and dairy farms. The local treatment facility, located in an open field next to small...
PROJECT DETAILS
LOCATION Villa Mercedes, David City, Chiriquí, Panama
CUSTOMER National Council for Sustainable Development (CONADES)
SOLUTION LumenAER® Solar-powered Circulators, SB-T Model
TECHNOLOGIES Wastewater Aeration
Solar-powered circulators reduce odor and mosquitoes at wastewater treatment plant
Background
For years, the wastewater treatment plant at Villa Mercedes in David City, Panama, emitted harsh odors and was home to a large mosquito population, which created a difficult situation...
Biological wastewater treatment harnesses the action of bacteria and other microorganisms to clean waterBiological wastewater treatment is a process that seems simple on the surface since it uses natural processes to help with the decomposition of organic substances, but in fact, it’s a complex, not completely understood process at the intersection of biology and biochemistry.Biological treatments rely on bacteria, nematodes, or other small organisms to break down organic wastes using normal cellular...
Overview
Hussain Sagar Lake in India faced an inflow of untreated waste and pollution causing decreasing DO levels and foul odors in the nearby community. An even more critical threat was eutrophication, or an excessive number of nutrients in the body of water, choking out the natural aquatic life.
Given the lake is stagnate, circulation and the distribution of efficient aeration was needed to alleviate these issues.
Challenge
Hussain Sagar Lake is located in a recreational area with many visitors. The lake...
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