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Fluidyne ISAM Sludge Reduction System
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​Fluidyne is the first company to commercially design, build and operate SBR technology based on the activated sludge process with over 300 plants operating worldwide. Our intimate process knowledge in biological treatment has led to reducing solid content through biological means. The ISAM sludge reduction system from Fluidyne Can be used as a side stream process in an existing plant to reduce sludge. It incorporates a constant-level anaerobic basin followed by a surge/anoxic/mix (SAM) tank, and an aeration basin that incorporates BOD, TSS and nitrogen removal along with sludge reduction in an integrated system.

REDUCES WASTE SLUDGE BY 80%
The Fluidyne ISAM™ Sequencing Batch Reactor incorporates an anaerobic selector chamber with the SAM™ SBR. The anaerobic selector not only provides consistent phosphorous removal by subjecting the recirculated biomass to anaerobic conditions, forcing the release of phosphorous, but also creates soluble carbon as a food source for phosphorous removal through anaerobic conversion of settleable BOD to soluble BOD. Additionally, anaerobic sludge digestion occurs in the anaerobic selector chamber, reducing waste solids production by up to 80% for the entire secondary process.

USES BOTH AEROBIC AND ANAEROBIC PROCESSES
Fluidyne Corporation’s patented process integrates both aerobic and anaerobic processes. This proven approach works because various types of microorganisms in activated sludge cultures utilize different nutrients, oxygenation environments and other conditions for optimum removal of different wastewater components.

HYDROLYSIS
Complex organic solids undergo hydrolysis to simpler soluble organics, which pass to the SAM tank. In addition to flow regulation, the SAM tank provides an anoxic environment for rapid denitrification of recycled nitrates and concurrent stabilization of the soluble organics from the I-Tank. The conditioned mixed liquor then passes to the final aerobic tank for completion of BOD and nitrogen removal and solids separation.

TOTALLY NEW CONCEPT
In operation, all influent flow enters the anaerobic basin where influent solids are allowed to settle much like a primary clarifier. Elimination of primary solids in the anaerobic basin allows for much smaller SBR basins at equivalent SRT than conventional SBRs. The anaerobic selector also creates soluble carbon as a food source for biological nutrient removal through anaerobic conversion of settleable BOD to soluble BOD. The influent then flows to the SAM™ surge basin, or influent equalization basin. The surge basin provides flow and nutrient equalization to optimize treatment at the full range of flows and loadings.

UNIQUE
Several unique feature of the Fluidyne ISAM™ SBR include odor control and scum skimming. Mixed liquor is maintained in the SAM™ tank to immediately react with incoming flow from the anaerobic chamber to suppress odors and initiate and accelerate carbon and nitrogen reactions. Mixed liquor is recycled from the top of the SBR tank effectively removing scum by use of proprietary flow and scum control system. In addition, nitrates are recycled to the SAM™ tank for effective and rapid denitrification. Denitrification reactions are accelerated in the presence of the unreacted carbon from the raw sewage entering the SAM™ tank. Aeration and energy requirements are reduced as nitrates are fully reduced to nitrogen gas in the SAM™ tank.

System Benefits
  • SBR basin has no moving parts that require maintenance.
  • Power usage is controlled through the Fluidyne control panel
  • Covered anaerobic selector chamber for odor control
  • More flexible than continuous flow plants
  • Aeration and mixing can automatically be adjusted to optimize power and prohibit filamentous growth
  • Small footprint with no digesters, secondary clarifiers,RAS piping and pumping
  • Produces the highest quality effluent (Typical Fluidyne ISAM™ facilities are achieving less than 10 mg/L BOD5 and TSS, less than 1 mg/L NH3-N, less than 7 mg/L total N, and less than 2 mg/L phosphorus)

Winschel Environmental, LLC
PO Box 453
Powhatan, VA 23139
Phone: 804-545-3115
Fax: 804-915-8982
Contact: Matthew J. Winschel, PE
[email protected]
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