The risks of overinstallation and inappropriate layouts

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WARNING: Beware of the following when choosing an air diffuser—


The risks of overinstallation and inappropriate layouts

Never install more air diffusers than are required

Some manufacturers of air diffusers instruct customers to install an unnecessarily large number of units because they have little confidence in their products’ performance. This results in over-aeration and poor sedimentation of activated sludge — flocs of microorganisms are broken up into so-called pin-flocs, which do not readily sediment.
Another issue is the excessive initial cost of purchasing the units, the piping and installation, and the long-term running costs.

OHR provides the optimum layout with the minimum number of units

OHR is committed to always creating the most efficient layout for your specific situation. This layout minimizes the number of units, piping and installation costs, and air blower electricity consumption.
We also provide an additional sheet that details how the required air blowing rate has been calculated.
Please compare our plans with those from competing wastewater treatment companies and confirm for yourself the superior efficiency of the OHR AERATOR.

The correct air diffuser layout is crucial

Many wastewater treatment companies, even major ones, make mistakes with the layout of their air diffusers. Commonly this is because of an excessive focus on performance (e.g. oxygen transfer rate) to the exclusion of considerations of layout.
Installing air diffusers with an incorrect layout results in insufficient aeration, which causes sludge to accumulate on the bottom of the tank and hence oxygen deficiency. OHR has extensive experience improving wastewater treatment conditions by changing layouts while maintaining the existing air blow rate.

OHR’s installation plans are backed by over 40 years of experience and expertise

After providing us with details of your tank (length, width, water depth) and specific treatment conditions (wastewater volume, BOD and COD, etc.) we will provide information on the optimum number of OHR AERATORs, arrangement, and piping configuration, in addition to a calculation sheet that explains the required volume of air to be blown. This service is free of charge.
When you install OHR AERATORs according to our plans, we guarantee optimum aeration without sludge accumulation on the bottom of the tank.

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