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Sewage treatment plant for the removal of phosphate in an activated sludge system is called as ________

(a) Enhanced biological phosphorus removal

(b) Enhanced biological Nitrogen removal

(c) Enhanced potassium removal

(d) Enhanced nitrogen removal

I have been asked this question by my school teacher while I was bunking the class.

I'm obligated to ask this question of Wastewater Treatment Systems topic in division Bacterial Metabolism in Wastewater Treatment Systems of Environmental Biotechnology

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Correct option is (a) Enhanced biological phosphorus removal

Easy explanation: Sewage treatment operations in a plant to remove phosphate in an activated sludge system is called as Enhanced biological phosphorus removal in absence of nitrate and oxygen prior to aeration, Enhanced potassium removal is not preferred in an activated sludge, enhanced biological nitrogen removal is done through multiple nitrification and denitrification stages, aeration process is called as enhanced nitrogen removal process.

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