Chemical Engineering :: Environmental Engineering
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Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is
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Fine grit present in sewage is removed in the __________ during sewage treatment.
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The lowest layer of atmosphere is known as the
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As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3.(μg-microgram)
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Which of the following is not a weightless pollutant ?
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Global warming may result in
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Which of the following is the most lethal water pollutant ?
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Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyl and haemoglobin breakdown of some animals, beyond TLV (>50 ppm)
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The earth's atmosphere is an envelope of gases present upto a height of about __________ kms.
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Which of the following is an adsorbant used for the removal of SO2 from gas/air ?
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