PH (pH) is a measure of the concentration of the element hydrogen (H) contained in waste water, there are no units, but have told waste water from 14 to 1 that there is a neutral pH 7 Ph. Is very important to biological treatment systems because the microorganisms in the system will work well in a pH range 6.8-8 only. Community-based water and waste water are relatively neutral. Unlike the waste water from factories that vary according to the type of it.
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