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WHAT IS ADS?
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The ADS process is a biologically non-concentrated aerobic liquid phase with internal solids separation and internal aerobic and anaerobic sludge digestion. Energy input is dictated by oxygen transfer efficiency and or circulation efficiency to attain complete and uniform oxygen dispersion throughout the aerobic liquid phase. Outstanding advantages include complete treatment, primary settling, biological oxidation, internal sludge digestion, odor and mosquito control through multi stages cells. No sludge removal should be required for 10+ years within the planned system. |
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HOW DOES ADS WORK?
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It is quite simple, low initial costs, low horsepower, longevity, and easy access to all components makes the Aerated-Facultative Lagoon Process a logical choice. It will treat both domestic and industrial wastes to look like drinking water. This can be accomplished without odors or chemicals, all in a pleasant environment. Many useful by products are already at the end of this process, such as higher aquatic life forms, like fish.
Just like in a rolling river, the "ADS" process delivers oxygen on the floor at the sludge-water interface. We've considered all the oxygen demands to make it a very predictable system. Historically systems have been designed around photosynthetic surface mixing to provide oxygen and have been unpredictable at consistently meeting oxygen needs of wastewater treatment.
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WHY IS ADS THE BETTER AERATION CHOICE?
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 The "ADS" system diagramed here produces a column of water 2 inches wide rising at a typical 0.8 foot per second, Though valve and bubble sizes may be varied to meet various engineering criteria, here 20 CFM of air turns over approximately 86 million gallons of water per day when the thermal differential from top to bottom Is approximately 30 degrees Fahrenheit.
Yet there is no turbulence, and no sediment is brought to the surface. Water brought to the surface flows out over a large area. The slow rise rate of the bubbles has kept air in prolonged contact with water, causing a great deal of oxygen to be dissolved directly from the bubbles into the water. Higher oxygen content makes the water less dense so by the time that the force of the rising bubble no longer exerts energy, the water itself has become lighter and has less tendency to sink right back to the bottom.
 Contrast this system which releases air from thousands of feet of tubing with any system which releases air over a small area or, even worse, from a confined cylinder or pipe. Circulation is so rapid turbulence and eddy currents allow water to travel only a few hundred feet before being whirl pooled back to the bottom. The swirling may be pretty to watch, but its effects limit aeration to the water immediately adjacent to the aerating device. By far the greatest portion of the reservoir gets no oxygenation at all.
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ADS TYPICAL FLOW DIAGRAM:
- Installations and designs can be customized to suit almost any need...
- Only One Moving Part - Heavy duty blowers powered by conventional electric motors are the only moving part. They provide a continual flow of filtered oiless air...
- Air is dispersed from the blower to the header pipe then onto weighted polyethylene aeration tubing. Special integral die-formed check valves in this tubing release the air in continuous curtains from the lagoon bottom...
- Spacing between tubing lines depends upon oxygen requirements, with space between the lines increased as the liquid moves away from its intake point and BOD decreases.
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