Chemical Engineering :: Environmental Engineering
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In water treatment plant, zeolite process is used to remove the __________ of water.
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For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
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In a sedimentation tank, the detention period for water ranges from __________ hours.
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On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because
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Workers working in __________ industry are most prone to white lung cancer.
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A standard test for determination of hardness in water is termed as __________ test.
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Presence of nitrates in water in excess of 50 ppm causes
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In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks.