Clearly indicate if each of the following is True or False: 1) Secondary treatment is a process consists of adding chemicals to remove BOD. 2) Sequencing batch reactor requires two tanks, one for aeration and another for settling. 3) Rotating biological contactor (RBC) is an attached growth system. 4) Attached growth wastewater treatment system uses medium such as gravels or rocks. 5) Critical point is the point where maximum deficit in dissolved oxygen occurs in rivers or lakes. 6) Ozone in stratosphere layer helps prevent UV light from reaching earth and causing skin problems. 7) Pure air can't containCO2 in it. 8) PM10 refers to the fine particulates in air. 9) Cyclone can be used to remove both particulates and SO2gas in a contaminated air. 10) One disadvantage of the scrubber device is the visible plumes from factories use it.
Clearly indicate if each of the following is True or False: 1) Secondary treatment is a process consists of adding chemicals to remove BOD. 2) Sequencing batch reactor requires two tanks, one for aeration and another for settling. 3) Rotating biological contactor (RBC) is an attached growth system. 4) Attached growth wastewater treatment system uses medium such as gravels or rocks. 5) Critical point is the point where maximum deficit in dissolved oxygen occurs in rivers or lakes. 6) Ozone in stratosphere layer helps prevent UV light from reaching earth and causing skin problems. 7) Pure air can't containCO2 in it. 8) PM10 refers to the fine particulates in air. 9) Cyclone can be used to remove both particulates and SO2gas in a contaminated air. 10) One disadvantage of the scrubber device is the visible plumes from factories use it.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Clearly indicate if each of the following is True or False:
1) Secondary treatment is a process consists of adding chemicals to remove BOD.
2) Sequencing batch reactor requires two tanks, one for aeration and another for settling.
3) Rotating biological contactor (RBC) is an attached growth system.
4) Attached growth wastewater treatment system uses medium such as gravels or rocks.
5) Critical point is the point where maximum deficit in dissolved oxygen occurs in rivers or lakes.
6) Ozone in stratosphere layer helps prevent UV light from reaching earth and causing skin problems.
7) Pure air can't containCO2 in it.
8) PM10 refers to the fine particulates in air.
9) Cyclone can be used to remove both particulates and SO2gas in a contaminated air.
10) One disadvantage of the scrubber device is the visible plumes from factories use it.
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