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Which of the following is the primary reason that biochemical operations function more efficiently than chemical and physical ones when the concentrations of reacting constituents are low?
Which of the following is the primary reason that biochemical operations function more efficiently than chemical and physical ones when the concentrations of reacting constituents are low?
- Biochemical operations can oxidize the carbon in substrates more completely to CO2.
- Biochemical operations release more energy than chemical and physical operations.
- Biochemical operations can convert soluble pollutants into an innocuous particulate form that can be easily removed. (correct)
- Biochemical operations can treat sludges more effectively than chemical and physical operations.
According to the passage, which of the following is the primary use of biochemical operations in wastewater treatment?
According to the passage, which of the following is the primary use of biochemical operations in wastewater treatment?
- Oxidizing the carbon in substrates completely to CO2.
- Removing low concentrations of reacting constituents more efficiently than chemical and physical operations.
- Treating sludges generated during the treatment process. (correct)
- Producing energy-rich compounds like ethanol through fermentation.
The passage states that the efficacy of a biochemical operation in treating sludge depends strongly on the nature of the materials in the sludge. Which of the following is the most likely reason for this?
The passage states that the efficacy of a biochemical operation in treating sludge depends strongly on the nature of the materials in the sludge. Which of the following is the most likely reason for this?
- The ability of the biochemical operations to convert the sludge materials into an innocuous particulate form.
- The biochemical environment required for the treatment of the specific sludge materials. (correct)
- The concentration of reacting constituents in the sludge determines the efficiency of the biochemical operations.
- The oxidation state of the carbon in the sludge materials affects the energy release during the biochemical reactions.
According to the passage, which of the following is true about the oxidation of acetic acid to CO2 and the oxidation of ethanol to CO2?
According to the passage, which of the following is true about the oxidation of acetic acid to CO2 and the oxidation of ethanol to CO2?
Why can CO2 never act as an energy source according to the passage?
Why can CO2 never act as an energy source according to the passage?
Which of the following is the primary difference between aerobic respiration and fermentation according to the passage?
Which of the following is the primary difference between aerobic respiration and fermentation according to the passage?
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