A reactor was constructed containing Teflon capillaries pressurized with pure oxygen. It is feasible and functions under organic loadings higher than activated sludge and trickling filter plants. Fixed-film systems (FFS) are biological treatment processes that employ a medium such as rock, plastic, wood, or other natural or synthetic solid material that will support biomass on its surface and within its porous structure. It is principally designed to enhance the efficiency of conventional activated sludge process. Integrated fixed film activated sludge (IFAS) is a relatively new technology that describes any suspended growth system that incorporates an attached growth media within the suspended growth reactor (U.S. EPA 2010). SAFF system takes higher shock loads without reducing the plant performance because of large quantity of Bio mass. Comparison of Fixed-Film Reactors with a Modified Sludge Blanket Reactor. Small foot print area, stable process, lesser sludge production and modular installations are the key features of SAFF process. Secondary Treatment: Where the biodegradable Organic Matter is degraded by the biomass on the SAFF media. encyclopedia.che.engin.umich.edu/Pages/Reactors/FixedFilm/FixedFilm.html Induced Air / Gas Flotation Separator(IGF). Modular design allows easy installation. A well designed Submerged Aerated Filter plant has no moving parts within its process zones, any serviceable items will be positioned to access easily without disrupting the ongoing treatment. © All Rights Reserved 2020 . The process is applicable for domestic sewage. No sludge re-circulation is required to maintain MLSS as in the case of conventional aeration system. This technology utilizes an aerobic fixed film process that is a combination submerged attached growth and activated sludge processes. If the system is operated with return sludge it is called IFAS (Integrated Fixed- Film activated sludge). In the wastewater industry, SAFF Technology is seen as the simple and cost effective method of commercial and residential sewage sanitation / waste water treatment, particularly for small to medium sized treatment plants where available land is limited, and where full time operational manning would be uneconomical. 9. 1. Fixed Film Reactor. Nitrification occurred at combined low organic and hydraulic loadings. reactor) or MBBR (Moving bed bio reactor). Can be designed to any size to deal with larger flow and loads. January 1983. The Submerged Aerobic Fixed Film (SAFF) process uses support media to retain an active biomass to reduce the influent BOD Levels. Operate with return solids as an integrated fixed-film activated sludge (IFAS) process. The device provides more than 90% BOD removal at high organic loadings. The aerobic media trickling filter is compared with other biological processes. It is feasible and functions under organic loadings higher than activated sludge and trickling filter plants. 11. 3. Oxygen was provided by diffusion through the walls of the tubing. Biofilm carriers are generally divided in ‘dispersed media’ or ‘fixed media’. 1. SAFF supports low sludge generation, low Odour and low visual impact. The high-rate anaerobic treatment system offer several advantages such as less land requirement, odor control, and a high removal of organic loading rate. 4. Introduction: Fixed-film Activated Sludge (AESFAS) Technology/Package provides for additional biomass within a wastewater treatment facility in order to meet more stringent effluent parameters or increased loadings without the direct need for additional tank capacity. This technology primarily has on the three stages that are Primary Settlement, Secondary Treatment and Final Settlement / Clarification. Copyright © 1996 - document.write(new Date().getFullYear()), American Society of Civil Engineers. Oxygen application rates in this process were comparable to the oxygen activated sludge process. The process is applicable for domestic sewage. 8. Depending on the type of fixed-film reactor (FFR) the media can provide a wide range of ecological habitats and niches ranging from aquatic to terrestrial. Less susceptible to upsets due to flow variations. Fixed bed reactors (Fig. Solids Retention Time (SRT) of can vary based on influent flow without negative process impact. Submerged Aerated Fixed Films (SAFF) Technology. Fixed film reactors The Hydroflux Industrial Moving Bed biological reactor MBBR is a high rate flexible biological process designed specifically for industrial applications. Dr. Pravit Ratanapian, Minister of Science and Technology to the Chol Charoen Starch Mill in Chonburi Province. Fine bubble diffused aeration used generally reduces the energy requirements as compared to surface aerators. 6.2) are the simplest type pf reactor to design, and consist of solid catalyst particles being loaded and packed into the bed.However, there are often problems faced with the plastic feed such as high viscosities, low thermal conductivities, and irregular shape when being placed inside the reactor. Submerged Aerobic Fixed Film Reactor (SAFF) is a cost-effective method of waste water treatment and sewage sanitation that is primarily used in residential and commercial complexes. Essentially SAFF system is a hybrid reactor where attached growth and suspended growth activity takes place simultaneously. Fixed film bioreactors use either fixed, expanded, or fluidized beds of inert or adsorptive media to support the biofilm's biodegradation of contaminants. Anaerobic Fixed Film Reactor (AFFR) Wastewater Treatment System On 4 March 2006, senior management of Chol Charoen Group, BIOTEC, and researchers from King Mongkut's University of Technology Thonburi (KMUTT) hosted the visit of H.E. SAFF reactor is a type of aerobic attached growth treatment process. Contaminant removal from the air or water is achieved through biofilm sorption. Nitrification occurred at combined low organic and hydraulic loadings. 2. SAFF system takes higher shock loads without reducing the plant performance because of large quantity of Bio mass available in the reactor. Pure Oxygen Fixed Film Reactor. Easily retrofitted into existing tanks. Tubular diffusers are used with the SAFF media giving a good air dispersal and low level of blockage due to growth of biological film. 2. Practical inert media include plastic, stone, sand, wood, and ceramics. Operate as single pass without return solids as a moving bed biofilm reactor (MBBR) or fixed bed biofilm reactor (FBBR) process. Especially for industrial pretreatment FBBRs are a good and advantageous alternative to activated sludge processes. 7. The Hydroflux Industrial MBBR is a unique continuous flow biological process that can be adapted to meet virtually any discharge requirements even at very high raw feed loads. Fixed biofilm reactors differ from the activated sludge process in providing an inert base (i.e., medium) on which bacteria and other microflora form a biofilm. 5. Submerged Aerobic Fixed Film Reactor (SAFF) is a cost-effective method of waste water treatment and sewage sanitation that is primarily used in residential and commercial complexes.This technology primarily has on the three stages that are Primary Settlement, Secondary Treatment and Final Settlement / … Primary Settlement: Where larger solids settle into the bottom of the primary tank and are removed periodically as sludge, and where other buoyant material which floats upwards is to be removed usually by a scraping/screening method. AES Arabia Ltd.Powered by AES Arabia Ltd. As with traditional sewage treatment, Submerged Aerated Fixed Films Technology too uses three stages of dealing with commercial and residential sewage / waste water. The purpose of the visit was to observe the Anaerobic Fixed Film Reactor (AFFR) wastewater treatment system which was developed by BIOTEC and KMUTT researchers. Final Settlement / Clarification: Where degraded solids are settled out of the biological treated effluent. With flow outside the Teflon tubings, they became covered with a biological film. The tank does not need to be drained for access to the diffusers or media. The sludge yield coefficients were approximately the value reported for the high-rate trickling filter, however, the process had higher design organic loadings.