The permissible color for domestic water supply is __________ ppm.

More Questions from Environmental Engineering

• In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks.
• Which of the following is not a source of ozone emission in the atmosphere?
• Global warming may result in
• Which of the following is an adsorbant used for the removal of SO2 from gas/air?
• Which of the following is the most lethal water pollutant?
• High noise levels produced during operation of fans and compressors can be reduced by using
• Fine grit present in sewage is removed in the __________ during sewage treatment.
• Arsenic pollutant is not generated in____industries.
• Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyl and haemoglobin breakdown of some animals, beyond TLV (>50 ppm)
• Pick out the correct statement.

Discussion & Comments