_______ is produced by subjecting oxygen to high electric voltage.

Related MCQs

• The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?
• What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?
• The maximum quantity of dissolved oxygen present in wastewater is called __________
• _________ is accomplished by the replenishment of oxygen lost to bacterial degradation of organic waste.
• In a flowing stream, the breakdown of degradable wastes by bacteria ________ dissolved oxygen.
• How many oxygen atoms are present in the ozone?
• Which of the following gases are produced in large amounts during sludge digestion?
• What is the monthly concentration of solids produced by secondary sewage effluent?