EDI recognizes that panel diffusers have high efficiency. With this in mind we have created Mini-Panel devices as alternatives to the flat panel diffuser types to have with the oxygen transfer efficiencies of flat panel configuration while producing actual energy savings because of significant reductions in operating pressure requirements.
Analysis of Panel Diffuser Technologies
Technical Bulletin 174: Analysis of Panel Diffuser Technologies The emphasis on reducing total cost of ownership of biological wastewater treatment plants has driven the technology for aeration and mixing systems to seek ways of higher efficiency and superior performance. Panel diffuser systems have been developed as a result and offer some interesting capabilities in aeration mixing technology. Panels along wit...
Optimization of Diffuser Systems
TECHNICAL BULLETIN 153 Optimization of Diffuser Systems Diffused Aeration System Performance Optimization Operation of aeration systems for biological treatment is well documented as requiring the bulk of energy in wastewater treatment plants (WWTP). Figure 1 shows the electricity requirements for the primary operation in an activated sludge facility. Aeration contributes 50-70%% of the energy requirements in th...
Testing Pipe Support Spacing
Aeration system pipe supports are typically spaced in the industry to provide long-term performance and service of aeration piping systems. In the spacing of these pipe supports, there are several variables that must be considered and evaluated to create a proper design. Clearly, there is a desire to have the pipe supports function properly while using the minimum number in order to control economics for the sys...
Sludge Removal and Diffuser Membrane Replacement Wastewater Treatment Lagoon at a Pumpkin Processing Plant
In 1999, Environmental Dynamics International (EDI) installed a partial mix, submerged aeration system with EDI’s FlexAir™ MagnumTM Fine Bubble Tube Diffusers at one of the two wastewater treatment lagoons for ‘Chiquita Processed Foods’ Pumpkin processing facility in Princeville, IL. In 2001, EDI installed another aeration system with MagnumTM non-buoyant diffusers in the second lagoon.
AW System Upgrade at Bridgeport CT EDI Keeps Solving Unique Challenges
The City of Bridgeport, CT is another example of EDI’s ability to provide unique solutions to its clients. The city is part of ‘Long Island Sound’ protected water body cooperation effort that sets stringent discharge limits. The operating company running the plant for the city was struggling to meet those discharge limits; due to their 17-year-old ceramic disc diffuser aeration system that was failing ...
Columbus, GA WRF: System Upgrade and Maintenance Program
The South Columbus Water Resources Facility, owned and run by Columbus Water Works (CWW), treats thewastewater coming from homes, businesses, and industries in the greater Columbus, GA area. The facilitytreats up to 70 MGD (264,979 m3/day) flow during wet seasons when storm-water enters the system. Inextreme conditions, the plant can handle up to 84 MGD (317,975 m3/day). In 2011, EDI provided its Flex...
Duckett Creek WWTP: EDI Delivering on the ‘Aeration for Life’ Promise
In 1994, Environmental Dynamics International (EDI) upgraded the Aerobic Digestion system at the 5 MGD Duckett Creek WWTP near St. Charles, MO. EDI installed FlexAirTM MagnumTM 84P tube diffusers in two series tank systems. This system upgrade by EDI resulted in approximately $60,000 per year energy and operating cost saving. Also, improved DO condition helped the plant comply with desired SOUR (Specif...
Retrievable Diffuser Aeration Systems
Below we evaluate retrievable diffuser systems by reviewing several common primary types of units. Simple drop-type assembly with a small diameter pipe and “T” section at the bottom. Diffusers are mounted at the “T” section and are installed near one wall of the aeration basin. This configuration creates a strong roll mix aeration pattern in the basin size fluid schematics shown in Figure 1.
Coarse Bubble Diffusers
Coarse Bubble Diffusers 103 Coarse bubble diffusers are suitable for almost any type of water and wastewater application. The primary application of coarse bubble diffuser systems today are as indicated below: Aerobic Digestion Applications Coarse bubble diffusers have been the traditional diffusers used in these applications. The standard design rate for this application is 30 scfm per 1000 ft of tank volume....