Electrostatic precipitation is an air pollution control technology, not a water treatment method.
Which of the following is not a water treatment technique?
Asked in HORTICULTURE DEVELOPMENT OF‐ FICER(HDO) 2015 · POST GRADUATE TEACHER (PGT) 2018 · Topic: Pollution (Water Pollution: Sources, common pollutants, water quality indicators (BOD, COD, DO), effects, control measures.)
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