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Fixed Activated Sludge Articles & Analysis
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Choosing Biomicrobics In the quiet town just outside Nashville, TN – a residential development of nearly 700 homes faced a critical challenge; its existing recirculating gravel filter wastewater system had failed. The immediate need was to treat 120,000 gallons per day (GPD), with flexibility for future expansion as the community continued to grow. ...
CHALLENGES The main challenge of this project was to channel the water discharges from the new bathrooms located in an industrial warehouse that was separate from the main plant, at the same time, integrate the water discharge from the bathrooms located in the old industrial warehouse, resulting in a reception of approximately 100 cubic meters of wastewater per day. ...
Scienco/FAST’s parent company BioMicrobics located in Lenexa, Kan., and incorporated in 1996, specializes in land-based solutions and has more than 80,000 installs worldwide using the FAST (Fixed Activate Sludge Treatment) system in various applications from homes to small municipalities and public/private commercial properties. ...
Serving a population of approximately 620,000 people, the new Ovilléo wastewater treatment plant is not only the largest of its kind in northern France but also features the world’s largest integrated fixed-film activated sludge plant utilizing Veolia’s Hybas™ technology. ...
Secondary Treatment: Degradation of any biological constituents by way of aerobic biological processes such as a fixed film activated sludge process. These treatments use bacteria, enzymes and protozoa that consume the biological material in the solution. ...
Two pumping stations in the flow equalization/surge tanks dose the FAST units at 312.50 gallons per dose, 24 doses a day. The FAST (fixed activated sludge treatment) process uses a combination of attached and suspended growth organisms in an aerobic, packed-bed bioreactor. This combination provides the stability of submerged, ...
The potential for integrated fixed film activated sludge (IFAS) processes to achieve enhanced transformation of pharmaceuticals relative to conventional activated sludge (CAS) processes was assessed. Previous studies have focused on direct comparisons of parallel reactors with and without ...
In the present study, a life cycle assessment (LCA) approach was used to analyse the environmental impacts associated with the construction and operational phases of an integrated fixed-film activated sludge (IFAS) reactor treating municipal wastewater. ...
Several types of biofilm reactors have been used for water treatment, with current focus on moving bed biofilm reactors, integrated fixed-film activated sludge, membrane-supported biofilm reactors, and granular sludge processes. ...
With the MBBR IFAS (moving bed biofilm reactor integrated fixed-film activated sludge) process, the biomass required for biological wastewater treatment is either suspended or fixed on free-moving plastic carriers in the reactor. ...
Wastewater treatment plants that employ conventional biological treatment processes designed to meet secondary treatment effluent standards typically do not remove total nitrogen (TN) or total phosphorus (TP) to the extent needed to protect receiving waters. However, wastewater treatment facilities are increasingly being required to address this issue by implementing treatment processes that ...
This article presents the results of research into the influence of one, two and three wastewater feedings in a cycle on efficiency and performance of combined biological nitrogen and phosphorus removal in an integrated fixed-film activated sludge and moving-bed sequencing batch biofilm reactor (IFAS-MBSBBR). The experiment lasted 158 days ...
The primary goal of this study is to investigate ammonia removal, abundance of nitrifying bacteria and microbial community structures in a laboratory-scale integrated fixed film activated sludge (IFAS) reactor. The results of Illumina MiSeq sequencing based on 16S rRNA genes showed Proteobacteria and Bacteroidetes were the dominant phyla in ...
Submerged fixed-film media is utilized within aeration basins to optimize biological treatment and increase capacity. ...
A well-designed and operated system can double the nitrification capacity of an existing aeration basin. When choosing media for fixed-film applications, typical options include small, floating biomass carriers (moving bed systems) or structured-sheet PVC modules fixed in the tank (fixed bed systems). ...
Experimental media consisted of three different wet-chemical surface treatments, and also media transferred from a full-scale mainstream fully nitrifying integrated fixed-film activated sludge (IFAS) reactor. Following startup of a full-scale deammonification reactor, the experimental media were placed in the full-scale reactor and removed for ...
The WWTP is currently undergoing a retrofit to convert the process from its current configuration (contact stabilization) to an integrated fixed film activated sludge (IFAS) system. During the retrofit the plant will be limited to operating with just half of the available biological processing capacity, In-Pipe treatment during the retrofit ...
The treatment system selected centered on a Bio-Microbics product called the FAST (Fixed Film Activated Sludge Treatment) system. The treatment plant site, which is about 1,000 feet from the closest home, consists of six FAST units. The FAST process is a fixed-film, aerated system utilizing a combination of attached and suspended ...
The objective of this study is to compare wastewater treatment effectiveness in sequencing batch reactor (SBR) and integrated fixed-film activated sludge–moving-bed sequencing batch biofilm reactor (IFAS-MBSBBR) systems in specific technological conditions. The comparison of these two technologies was based on the following assumptions, ...
This work describes the nutrient removal performance and microbial characteristics of a full-scale integrated fixed-film activated sludge-enhanced biological phosphorus removal (IFAS-EBPR) process for municipal wastewater treatment. ...