Q: What are ambient microorganisms? Why should they not be present duringsubculturing?
A: There are some living organisms that cannot be seen by the naked eye and only can be seen under the…
Q: Given its merits, why has advanced wastewatertreatment not been widely adopted?
A: Introduction: Advanced wastewater treatment has been used for a variety of purposes such as removing…
Q: What happens in a chemostat if the dilution rate exceeds themaximal specific growth rate of the…
A: The chemostat is a reactor in which fresh medium is added continuously while leftovers are removed.…
Q: why is it that psychrotrophs placed in TSA medium are incubated at 7oC?
A: Psychrophiles are organisms that can survive and reproduce in low temperatures as low as -20 degrees…
Q: What is the significance of finding coliforms in drinking water?
A: Some living organisms cannot be visible by the naked eye and only can be seen under the microscope.…
Q: In fixed-bed leaching, how it can be leached please mention one or two only.
A: Asked : Fixed-bed leaching
Q: What kinds of organisms are used in coculture withSyntrophomonas?
A: Syntrophomonas is a gram negative bacteria belongs to Syntrophomonadaceae family. This bacteria…
Q: what is the present microorganisms in soft swell spoilage?
A: Canning is a type of food preservation method, which includes the preservation of food in air tight…
Q: Why must you exercise caution when handling raw sewagesamples?
A: Answer: Introduction: Raw sewage means a water comprising excrement, wastes products like plastic,…
Q: Why is heat an effective sterilizing agent?
A: Heat Energy : It is a form of energy which takes place by the movement of the minute particles…
Q: What are microbial pesticides?
A: The word biopesticide is formed of :- Bio + pesticides Bio means living while pesticides means…
Q: Why is it important to determine the number of mesophilic spores in a food ingredient?
A: Sometimes spore forming mesophilic bacteria found in food ingradient, mainly in dairy product. It…
Q: How does Efficient waste management improve aqua culture production
A: Environmental Biology is a branch of science that is the junction of environmental science, ecology,…
Q: What are the challenges in the management of the pesticide industry wastewater?
A: Waste water from the pesticide industries must be well treated and checked before its release into…
Q: what are psychrotolerant bacteria and examples of it.
A: Psychrotolerant bacteria Psychrotolerant bacteria, or those that can grow at temperatures below…
Q: . How could microorganisms be used to remove phosphate in wastewater?
A: Microalgae are able to convert nutrients from wasrewater into biomass and bioproducts,thus improving…
Q: What is the relation of microbail growth to microbial physiology?
A: Microbes are small organisms that are found in a diverse range of habitats. The rate of growth and…
Q: Which bacterium reduces nitrates in soil to nitrogen?
A: Nitrogen is needed by the organism for producing amino acids. Atmospheric nitrogen cannot be used as…
Q: Why is nitrification a good example of a commensalistic process?
A: The ‘bacteria’ is a microscopic ‘single-cell’ organism. It does not have a nucleus and other…
Q: How does the extremely high resistance of bacterial endospores influence sterilization practices,…
A: Endospore refers to a nonreproductive, dormant composition generated by some kind of bacteria. It…
Q: How do microorganisms in a chemostat differ frommicroorganisms in a batch culture?
A: Microbial culture refers to breeding or growing of microorganisms in laboratory-controlled…
Q: Why do meat packaging plants have to process/pretreat their wastewater before sending it into the…
A: Meatpacking refers to the process of turning livestock into the meat. The meat packaging plants or…
Q: Why is Escherichia coli used as an indicator organism inmicrobial analyses of water?
A: The well-known gram-negative bacteria are E. coli (Escherichia coli).
Q: What is the role of nitrate in microbial metabloism?
A: Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed…
Q: When would tertiary treatment of wastewater be necessary ?
A: Water is the important natural resources.Water treatment is done in order to reuse the water again…
Q: household contaminated wastewater purification
A: Microorganisms from sewage can cause human disease, but can also negatively affect important…
Q: What is a pure culture and why is obtaining one useful inmicrobial ecology?
A: Microbes are living organisms. They are ubiquitous. They cannot be seen by the naked eyes. In…
Q: how do microorganisms contribute to spoilage of coconut water
A: coconut water is a highly nutritive media having different components like carbohydrates , lipids ,…
Q: What are the minimum TDTs for vegetative cells and endospores?
A: Thermal death time (TDT) is defined as the shorter time required to kill the test microbes at a…
Q: What types of the organisms are being farmed in mariculture operations?
A: Mariculture is the specialised branch which deals with the marine organisms,their cultivation,…
Q: What is the relationship between the most probable number method and nitrate in environmental…
A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…
Q: Name any two gases produced during secondary treatment of Sewage?
A: Wastewater treatment involves removal of harmful contaminants from the wastewater or sewage water…
Q: What types of bacteria grow on nutrient agar?
A: Nutrient agar is a nutrient-rich medium that allows the growth of a wide range of organisms in the…
Q: Why are dilute culture media used for isolating pelagicmicrobes?
A: Pelagic habits are abundant in microbes. The diversity spans domains, however it is usually seen…
Q: Why is reduction of BOD in wastewater a primary goal ofwastewater treatment? What are the…
A: Wastewater treatment is carried out to reduce organic and inorganic compounds in the wastewater to a…
Q: Escherichia coli is used as an indicator organism to determine pollution of water with what?
A: Bioindicator as the term suggests is the indicator of the quality of the environment. The function,…
Q: What physical and chemical conditions are necessaryfor the rapid microbial degradation of oil in…
A: Biodegradation refers to the transformation of complex organic compounds by bacteria, fungi, and…
Q: Other than treated water, what are the final products ofwastewater treatment? How might these end…
A: Wastewater treatment involves multistep process of primary treatment, secondary treatment and…
Q: How is it possible for both aerobes and obligate anaerobes tocoexist in the same biofilm?
A: Biofilms are masses of one or more types of microorganisms that irreversibly attach and grow on many…
Q: Colonies that produce alkaline waste on Hektoen enteric agar will turn O blue-green. O pink. O…
A: Colonies that produce alkaline waste on Hektoen enteric agar will turn blue- green.
Q: How domestic sewage deteriorates surface water quality?
A: Water quality is a term that is used to determine the usability of water. Not all water can be used…
Q: What are the factors that influence the efficiency of chemical sterilization?
A: Chemical Sterilization is the process of removal of microorganisms by the use of chemical…
Q: what present microorganisms in flipper spoilage and springer spoilage
A: Spoilage of food is often observed in canned food items. There are roughly four types of bulged or…
How do primary and secondary wastewater treatment
methods differ?
Wastewater treatment as the term suggest the removal of contaminants from the wastewater before disposal. The treatment is carried out by the wastewater treatment plant and basically aims at the removal or breakdown of the pollutants that tend to harm the human population as well as the environment.
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- What is the significance of finding coliforms in drinking water?Which statement among A-C is not applicable to flocculation, or floc formation, during wastewater treatment? A) O Filamentous bacteria enhance floc formation. B) O Flocculation is important for the production of a clear effluent stream of wastewater. O O Flocculation decreases the amount of BOD entering the effluent stream of wastewater. D) OA-C are all applicable.What are the various constituents of domestic sewage? Discuss theeffects of sewage discharge on a river.