BOD expands to Biochemical Oxygen demand also known as Biological Oxygen demand. It represents the amount of dissolved oxygen consumed/required by the bacteria and other microorganisms while decomposing the organic matter in the aerobic process in water at a specific temperature.
What are the ways to improve BOD in the wastewater treatment process?
We all know that BOD levels should be maintained and must be in accordance with environmental regulations. High BOD levels can lead to the killing of aquatic animals. Therefore, it is necessary that we take few steps to improve and maintain the BOD levels in the wastewater treatment process.
Here are some ways to improve the BOD levels:
1. Total Suspended Solids (TSS) should be removed from the wastewater process. It will help in reducing BOD levels to a great extent.
2. There must be always a properly sized EQ tank. It will help in balancing the load and flow of rates. It also helps in properly sizing the polymer make down feeder which in turn will keep the initial costs down.
3. Maintaining the optimum pH level of water will also help in keeping the BOD levels in control. If the Ph is not efficient, then the polymers will be wasted or ineffective.
4. Installation of modern DAF plates pack made of stainless steel will help in the TSS removal rates. In turn, the BOD levels will also be maintained.
5. Using a regenerative turbine dissolution pump will also help in maintaining the BOD levels.
What is an Anoxic zone in wastewater treatment?
Anoxic generally means the deficiency or depletion of oxygen. The process by which the nitrate-nitrogen gets converted to molecular nitrogen gas in the absence of oxygen is termed an anoxic process. This process is also known as denitrification.
The anoxic zone is beneficial in the removal of nitrogen. Now, the anoxic zone does not require oxygen because the breakdown of nitrogen products releases the oxygen for which the bacteria strive.
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