259985
In sewage treatment, secondary treatment is considered highly significant. because
1 It helps to remove debris from the sewage.
2 It reduces the BOD level of sewage.
3 It helps in production of biogas.
4 It increases the organic content of sewage.
Explanation:
In sewage treatment, secondary treatment considered highly significant, because it reduces the Biological Oxygen Demand (BOD) level of sewage. - BOD is measurement of impurity in water. - High BOD shows more pollution in water.
Karnataka CET-2020
Microbes in Human Welfare
259986
Sewage water can be purified by $\qquad$
1 Penicillin
2 Fishes
3 Aquatic plants
4 Microorganisms
Explanation:
Exp. D Sewage water can be purified by heterotrophic microbes (microorganism) present in the sewage this treatment is carried out by two stages. i) Primary treatment ii) Secondary treatment Many industrial and municipal wastewater treatment plants use bacteria and other microorganisms to help with the process of cleaning sewage.
AP EAMCET-06.09.2021 Shift-I
Microbes in Human Welfare
259989
Stirred-tank bioreactors have been designed for -
1 Addition of preservatives to the product
2 Purification of the product
3 Ensuring anaerobic conditions in the culture
4 Availability of oxygen throughout the process
Explanation:
In the sparged stirred-tank bioreactor, the sparge (a porous ring made of metal or glass) facilitates the mixing and oxygen availability throughout the bioreactor. Stirred tank bioreactor is usually cylindrical or with a curved base to facilitate the mixing of the reaction content. The stirred facilitates even mixing and oxygen availability throughout the bioreactor. Alternatively, air can be bubbled through the reactor.
AIPMT (Screening)-2010
Microbes in Human Welfare
259990
Select the correct statement from the following:
1 Biogas is produced by the activity of aerobic bacteria on animal waste
2 Methanobacterium is an aerobic bacterium found in rumen of cattle
3 Biogas commonly called gobar gas is pure methane
4 Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
Explanation:
The activated sludge process is an aerobic suspended growth treatment system in which microorganism use the organic content of wastewater as an energy source and for survival and replication. - Biogas is produced by the activity of anaerobic bacteria on animal waste. Biogas commonly called gobar gas is a mixture of $50-70$ percent methane \& $30-40$ percent carbon dioxide and trace amounts of other gases. - Methanobacterium is an anaerobic bacterium found in rumen of cattle.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Microbes in Human Welfare
259985
In sewage treatment, secondary treatment is considered highly significant. because
1 It helps to remove debris from the sewage.
2 It reduces the BOD level of sewage.
3 It helps in production of biogas.
4 It increases the organic content of sewage.
Explanation:
In sewage treatment, secondary treatment considered highly significant, because it reduces the Biological Oxygen Demand (BOD) level of sewage. - BOD is measurement of impurity in water. - High BOD shows more pollution in water.
Karnataka CET-2020
Microbes in Human Welfare
259986
Sewage water can be purified by $\qquad$
1 Penicillin
2 Fishes
3 Aquatic plants
4 Microorganisms
Explanation:
Exp. D Sewage water can be purified by heterotrophic microbes (microorganism) present in the sewage this treatment is carried out by two stages. i) Primary treatment ii) Secondary treatment Many industrial and municipal wastewater treatment plants use bacteria and other microorganisms to help with the process of cleaning sewage.
AP EAMCET-06.09.2021 Shift-I
Microbes in Human Welfare
259989
Stirred-tank bioreactors have been designed for -
1 Addition of preservatives to the product
2 Purification of the product
3 Ensuring anaerobic conditions in the culture
4 Availability of oxygen throughout the process
Explanation:
In the sparged stirred-tank bioreactor, the sparge (a porous ring made of metal or glass) facilitates the mixing and oxygen availability throughout the bioreactor. Stirred tank bioreactor is usually cylindrical or with a curved base to facilitate the mixing of the reaction content. The stirred facilitates even mixing and oxygen availability throughout the bioreactor. Alternatively, air can be bubbled through the reactor.
AIPMT (Screening)-2010
Microbes in Human Welfare
259990
Select the correct statement from the following:
1 Biogas is produced by the activity of aerobic bacteria on animal waste
2 Methanobacterium is an aerobic bacterium found in rumen of cattle
3 Biogas commonly called gobar gas is pure methane
4 Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
Explanation:
The activated sludge process is an aerobic suspended growth treatment system in which microorganism use the organic content of wastewater as an energy source and for survival and replication. - Biogas is produced by the activity of anaerobic bacteria on animal waste. Biogas commonly called gobar gas is a mixture of $50-70$ percent methane \& $30-40$ percent carbon dioxide and trace amounts of other gases. - Methanobacterium is an anaerobic bacterium found in rumen of cattle.
259985
In sewage treatment, secondary treatment is considered highly significant. because
1 It helps to remove debris from the sewage.
2 It reduces the BOD level of sewage.
3 It helps in production of biogas.
4 It increases the organic content of sewage.
Explanation:
In sewage treatment, secondary treatment considered highly significant, because it reduces the Biological Oxygen Demand (BOD) level of sewage. - BOD is measurement of impurity in water. - High BOD shows more pollution in water.
Karnataka CET-2020
Microbes in Human Welfare
259986
Sewage water can be purified by $\qquad$
1 Penicillin
2 Fishes
3 Aquatic plants
4 Microorganisms
Explanation:
Exp. D Sewage water can be purified by heterotrophic microbes (microorganism) present in the sewage this treatment is carried out by two stages. i) Primary treatment ii) Secondary treatment Many industrial and municipal wastewater treatment plants use bacteria and other microorganisms to help with the process of cleaning sewage.
AP EAMCET-06.09.2021 Shift-I
Microbes in Human Welfare
259989
Stirred-tank bioreactors have been designed for -
1 Addition of preservatives to the product
2 Purification of the product
3 Ensuring anaerobic conditions in the culture
4 Availability of oxygen throughout the process
Explanation:
In the sparged stirred-tank bioreactor, the sparge (a porous ring made of metal or glass) facilitates the mixing and oxygen availability throughout the bioreactor. Stirred tank bioreactor is usually cylindrical or with a curved base to facilitate the mixing of the reaction content. The stirred facilitates even mixing and oxygen availability throughout the bioreactor. Alternatively, air can be bubbled through the reactor.
AIPMT (Screening)-2010
Microbes in Human Welfare
259990
Select the correct statement from the following:
1 Biogas is produced by the activity of aerobic bacteria on animal waste
2 Methanobacterium is an aerobic bacterium found in rumen of cattle
3 Biogas commonly called gobar gas is pure methane
4 Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
Explanation:
The activated sludge process is an aerobic suspended growth treatment system in which microorganism use the organic content of wastewater as an energy source and for survival and replication. - Biogas is produced by the activity of anaerobic bacteria on animal waste. Biogas commonly called gobar gas is a mixture of $50-70$ percent methane \& $30-40$ percent carbon dioxide and trace amounts of other gases. - Methanobacterium is an anaerobic bacterium found in rumen of cattle.
259985
In sewage treatment, secondary treatment is considered highly significant. because
1 It helps to remove debris from the sewage.
2 It reduces the BOD level of sewage.
3 It helps in production of biogas.
4 It increases the organic content of sewage.
Explanation:
In sewage treatment, secondary treatment considered highly significant, because it reduces the Biological Oxygen Demand (BOD) level of sewage. - BOD is measurement of impurity in water. - High BOD shows more pollution in water.
Karnataka CET-2020
Microbes in Human Welfare
259986
Sewage water can be purified by $\qquad$
1 Penicillin
2 Fishes
3 Aquatic plants
4 Microorganisms
Explanation:
Exp. D Sewage water can be purified by heterotrophic microbes (microorganism) present in the sewage this treatment is carried out by two stages. i) Primary treatment ii) Secondary treatment Many industrial and municipal wastewater treatment plants use bacteria and other microorganisms to help with the process of cleaning sewage.
AP EAMCET-06.09.2021 Shift-I
Microbes in Human Welfare
259989
Stirred-tank bioreactors have been designed for -
1 Addition of preservatives to the product
2 Purification of the product
3 Ensuring anaerobic conditions in the culture
4 Availability of oxygen throughout the process
Explanation:
In the sparged stirred-tank bioreactor, the sparge (a porous ring made of metal or glass) facilitates the mixing and oxygen availability throughout the bioreactor. Stirred tank bioreactor is usually cylindrical or with a curved base to facilitate the mixing of the reaction content. The stirred facilitates even mixing and oxygen availability throughout the bioreactor. Alternatively, air can be bubbled through the reactor.
AIPMT (Screening)-2010
Microbes in Human Welfare
259990
Select the correct statement from the following:
1 Biogas is produced by the activity of aerobic bacteria on animal waste
2 Methanobacterium is an aerobic bacterium found in rumen of cattle
3 Biogas commonly called gobar gas is pure methane
4 Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
Explanation:
The activated sludge process is an aerobic suspended growth treatment system in which microorganism use the organic content of wastewater as an energy source and for survival and replication. - Biogas is produced by the activity of anaerobic bacteria on animal waste. Biogas commonly called gobar gas is a mixture of $50-70$ percent methane \& $30-40$ percent carbon dioxide and trace amounts of other gases. - Methanobacterium is an anaerobic bacterium found in rumen of cattle.