259977
Which of the following is biodegradable pollutant?
1 Sewage
2 Plastic
3 Polythene
4 DDT
Explanation:
Sewage or waste water contains human excreta and other organic waste. It is a biodegradable pollutant.
JCECE-2005
Microbes in Human Welfare
259981
During sewage treatment, biogases are produced which include:
1 hydrogensulphide, nitrogen, methane
2 methane, hydrogensulphide, carobon dioxide
3 methane, oxygen, hydrogensulphide
4 hydrogensulphide, methane, sulphur dioxide
Explanation:
Biogas is produced when bacteria digest organic matter (biomass) in the absence of oxygen. Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. Biogas is a renewable energy source.
NEET-2013
Microbes in Human Welfare
259982
The domestic sewage in large cities:
1 Has high BOD as it contains both aerobic and anaerobic bacteria
2 Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
3 When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
4 Has very high amounts of suspended solids and dissolved salts
Explanation:
Activated sludge is a suspended-growth aerobic bacteria which remove the pollutants from wastewater in an aerobic environment during the secondary treatment, the aerobic stage is followed by the anaerobic stage in which anaerobic bacteria are used in secondary treatment in sewage treatment plants (STPs). Hence the domestic sewage in large cities is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs).
AIIMS-2015
Microbes in Human Welfare
259987
The bacterium that is commonly found in the anaerobic sludge during sewage treatment is called.
1 Methanobacterium
2 Staphylococcus
3 Acetobacter aceti
4 Clostridium butylicum
Explanation:
Methanogens are responsible for the methane in the belches of ruminants and in the flatulence in humans. Methanogens play a vital ecological role in anaerobic environments by removing excess hydrogen and fermentation products produced by other forms of anaerobic respiration.
TS EAMCET-02.05.2018 Shift-II
Microbes in Human Welfare
259988
The primary treatment of sewage water involves
1 Sludge digestion
2 Aerobic bacterial activity
3 Anaerobic bacterial activity
4 Filtration and sedimentation
Explanation:
Primary treatment of sewage water involves the physical removal of large and small particles from the sewage through filtration and sedimentation. The sedimented particles are called primary sludge and the supernatant is called effluent.
259977
Which of the following is biodegradable pollutant?
1 Sewage
2 Plastic
3 Polythene
4 DDT
Explanation:
Sewage or waste water contains human excreta and other organic waste. It is a biodegradable pollutant.
JCECE-2005
Microbes in Human Welfare
259981
During sewage treatment, biogases are produced which include:
1 hydrogensulphide, nitrogen, methane
2 methane, hydrogensulphide, carobon dioxide
3 methane, oxygen, hydrogensulphide
4 hydrogensulphide, methane, sulphur dioxide
Explanation:
Biogas is produced when bacteria digest organic matter (biomass) in the absence of oxygen. Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. Biogas is a renewable energy source.
NEET-2013
Microbes in Human Welfare
259982
The domestic sewage in large cities:
1 Has high BOD as it contains both aerobic and anaerobic bacteria
2 Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
3 When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
4 Has very high amounts of suspended solids and dissolved salts
Explanation:
Activated sludge is a suspended-growth aerobic bacteria which remove the pollutants from wastewater in an aerobic environment during the secondary treatment, the aerobic stage is followed by the anaerobic stage in which anaerobic bacteria are used in secondary treatment in sewage treatment plants (STPs). Hence the domestic sewage in large cities is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs).
AIIMS-2015
Microbes in Human Welfare
259987
The bacterium that is commonly found in the anaerobic sludge during sewage treatment is called.
1 Methanobacterium
2 Staphylococcus
3 Acetobacter aceti
4 Clostridium butylicum
Explanation:
Methanogens are responsible for the methane in the belches of ruminants and in the flatulence in humans. Methanogens play a vital ecological role in anaerobic environments by removing excess hydrogen and fermentation products produced by other forms of anaerobic respiration.
TS EAMCET-02.05.2018 Shift-II
Microbes in Human Welfare
259988
The primary treatment of sewage water involves
1 Sludge digestion
2 Aerobic bacterial activity
3 Anaerobic bacterial activity
4 Filtration and sedimentation
Explanation:
Primary treatment of sewage water involves the physical removal of large and small particles from the sewage through filtration and sedimentation. The sedimented particles are called primary sludge and the supernatant is called effluent.
259977
Which of the following is biodegradable pollutant?
1 Sewage
2 Plastic
3 Polythene
4 DDT
Explanation:
Sewage or waste water contains human excreta and other organic waste. It is a biodegradable pollutant.
JCECE-2005
Microbes in Human Welfare
259981
During sewage treatment, biogases are produced which include:
1 hydrogensulphide, nitrogen, methane
2 methane, hydrogensulphide, carobon dioxide
3 methane, oxygen, hydrogensulphide
4 hydrogensulphide, methane, sulphur dioxide
Explanation:
Biogas is produced when bacteria digest organic matter (biomass) in the absence of oxygen. Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. Biogas is a renewable energy source.
NEET-2013
Microbes in Human Welfare
259982
The domestic sewage in large cities:
1 Has high BOD as it contains both aerobic and anaerobic bacteria
2 Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
3 When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
4 Has very high amounts of suspended solids and dissolved salts
Explanation:
Activated sludge is a suspended-growth aerobic bacteria which remove the pollutants from wastewater in an aerobic environment during the secondary treatment, the aerobic stage is followed by the anaerobic stage in which anaerobic bacteria are used in secondary treatment in sewage treatment plants (STPs). Hence the domestic sewage in large cities is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs).
AIIMS-2015
Microbes in Human Welfare
259987
The bacterium that is commonly found in the anaerobic sludge during sewage treatment is called.
1 Methanobacterium
2 Staphylococcus
3 Acetobacter aceti
4 Clostridium butylicum
Explanation:
Methanogens are responsible for the methane in the belches of ruminants and in the flatulence in humans. Methanogens play a vital ecological role in anaerobic environments by removing excess hydrogen and fermentation products produced by other forms of anaerobic respiration.
TS EAMCET-02.05.2018 Shift-II
Microbes in Human Welfare
259988
The primary treatment of sewage water involves
1 Sludge digestion
2 Aerobic bacterial activity
3 Anaerobic bacterial activity
4 Filtration and sedimentation
Explanation:
Primary treatment of sewage water involves the physical removal of large and small particles from the sewage through filtration and sedimentation. The sedimented particles are called primary sludge and the supernatant is called effluent.
259977
Which of the following is biodegradable pollutant?
1 Sewage
2 Plastic
3 Polythene
4 DDT
Explanation:
Sewage or waste water contains human excreta and other organic waste. It is a biodegradable pollutant.
JCECE-2005
Microbes in Human Welfare
259981
During sewage treatment, biogases are produced which include:
1 hydrogensulphide, nitrogen, methane
2 methane, hydrogensulphide, carobon dioxide
3 methane, oxygen, hydrogensulphide
4 hydrogensulphide, methane, sulphur dioxide
Explanation:
Biogas is produced when bacteria digest organic matter (biomass) in the absence of oxygen. Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. Biogas is a renewable energy source.
NEET-2013
Microbes in Human Welfare
259982
The domestic sewage in large cities:
1 Has high BOD as it contains both aerobic and anaerobic bacteria
2 Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
3 When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
4 Has very high amounts of suspended solids and dissolved salts
Explanation:
Activated sludge is a suspended-growth aerobic bacteria which remove the pollutants from wastewater in an aerobic environment during the secondary treatment, the aerobic stage is followed by the anaerobic stage in which anaerobic bacteria are used in secondary treatment in sewage treatment plants (STPs). Hence the domestic sewage in large cities is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs).
AIIMS-2015
Microbes in Human Welfare
259987
The bacterium that is commonly found in the anaerobic sludge during sewage treatment is called.
1 Methanobacterium
2 Staphylococcus
3 Acetobacter aceti
4 Clostridium butylicum
Explanation:
Methanogens are responsible for the methane in the belches of ruminants and in the flatulence in humans. Methanogens play a vital ecological role in anaerobic environments by removing excess hydrogen and fermentation products produced by other forms of anaerobic respiration.
TS EAMCET-02.05.2018 Shift-II
Microbes in Human Welfare
259988
The primary treatment of sewage water involves
1 Sludge digestion
2 Aerobic bacterial activity
3 Anaerobic bacterial activity
4 Filtration and sedimentation
Explanation:
Primary treatment of sewage water involves the physical removal of large and small particles from the sewage through filtration and sedimentation. The sedimented particles are called primary sludge and the supernatant is called effluent.
259977
Which of the following is biodegradable pollutant?
1 Sewage
2 Plastic
3 Polythene
4 DDT
Explanation:
Sewage or waste water contains human excreta and other organic waste. It is a biodegradable pollutant.
JCECE-2005
Microbes in Human Welfare
259981
During sewage treatment, biogases are produced which include:
1 hydrogensulphide, nitrogen, methane
2 methane, hydrogensulphide, carobon dioxide
3 methane, oxygen, hydrogensulphide
4 hydrogensulphide, methane, sulphur dioxide
Explanation:
Biogas is produced when bacteria digest organic matter (biomass) in the absence of oxygen. Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. Biogas is a renewable energy source.
NEET-2013
Microbes in Human Welfare
259982
The domestic sewage in large cities:
1 Has high BOD as it contains both aerobic and anaerobic bacteria
2 Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
3 When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
4 Has very high amounts of suspended solids and dissolved salts
Explanation:
Activated sludge is a suspended-growth aerobic bacteria which remove the pollutants from wastewater in an aerobic environment during the secondary treatment, the aerobic stage is followed by the anaerobic stage in which anaerobic bacteria are used in secondary treatment in sewage treatment plants (STPs). Hence the domestic sewage in large cities is processed by aerobic and then anaerobic bacteria in the secondary treatment in sewage treatment plants (STPs).
AIIMS-2015
Microbes in Human Welfare
259987
The bacterium that is commonly found in the anaerobic sludge during sewage treatment is called.
1 Methanobacterium
2 Staphylococcus
3 Acetobacter aceti
4 Clostridium butylicum
Explanation:
Methanogens are responsible for the methane in the belches of ruminants and in the flatulence in humans. Methanogens play a vital ecological role in anaerobic environments by removing excess hydrogen and fermentation products produced by other forms of anaerobic respiration.
TS EAMCET-02.05.2018 Shift-II
Microbes in Human Welfare
259988
The primary treatment of sewage water involves
1 Sludge digestion
2 Aerobic bacterial activity
3 Anaerobic bacterial activity
4 Filtration and sedimentation
Explanation:
Primary treatment of sewage water involves the physical removal of large and small particles from the sewage through filtration and sedimentation. The sedimented particles are called primary sludge and the supernatant is called effluent.
