Which statement among A-C is not applicable to flocculation, or floc formation, during wastewater treatment? A) OFilamentous bacteria enhance floc formation. B) O Flocculation is important for the production of a clear effluent stream of wastewater. C) O Flocculation decreases the amount of BOD entering the effluent stream of wastewater. D) OA-C are all applicable.

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A: Correct option is, (d) Is catalase-positive.

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A: The objective of the question is to identify the process that reduces pathogens to a safe and stable…

Q: Ch. 6: Water intoxication may be due to: a) administration of too much hypotonic solution b)…

A: Water is the liquid present in the cells. It has salts and other chemicals dissolved in it.

Q: Most human bacterial pathogens are labeled as __ according to their temperature requirement: a)…

A: Microorganisms known as mesophiles thrive in habitats with moderate temperatures, often between 20°C…

Q: Advanced treatment is often designed to removea) BOD.b) nitrates and phosphates.c) bacteria.d)…

A: Water that is contaminated due to human use converted into waste one which contains physical,…

Q: equires oxygen at a lower concentration than typically found in air.   Question 3 options:   a)…

A: Throughout nature, aerobic and anaerobic environments can be found in diverse niches. These…

Q: Clostridium spp palys vital role in meat spoilage. a) Describe possible conditions of spoilage cause…

A: Meat spoilage It causes the development of off- odor called as putrefaction. The vacuum and gas…

Q: A worker spends 16 hours per week for 10 weeks in an area with 1.2 WL of radon daughters. a) What is…

A: Radon daughters enter the body with the inhaled air. The alpha particle dose to the lungs depends on…

Q: Which of the following is false?a) A high-level disinfectant cannot be used as a sterilant.b)…

A: According to the risk for transmitting microbial infections, the medical instruments are classified…

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A: Here we have to explain about why sediment observed in stained blood smear.

Q: a) What is the consequence of discharging larger volumes of sewage that is untreated into a river?…

A: Introduction: Wastewater treatment has been used for a variety of purposes such as removing the…

Q: Blood agar media  is a _________.   Selective media Differential media Rich media Enriched media…

A: A medium can be defined as gel or liquid which helps in growth of a bacterial culture. Medium is…

Q: Which of the following is often added to wine to inhibit growth of the natural microbial populations…

A: Wine production:                        In red wine, the role of malolactic fermentation act as a…

Q: How does treatment of drinking water and sewage vary in purposeand techniques?

A: Drinking water treatment is done on raw water to make it pure enough for human consumption by…

Q: what practical importance are air-borne microorganisms to the laboratory workers?  What precautions…

A: Air is the carrier of many microbes. These microbes that are suspended in air particles are called…

Q: Describe the three stages of sewage treatment.

A: Sewage water is the wastewater produced after the household uses, industrial uses, and purposes. So,…

Q: A) What are the main reasons of food poisoning?

A: As per our guidelines, we are supposed to answer only one question. Kindly repost the other question…

Q: Why do we test water for coliforms if they are not considered pathogenic?

A: Introduction Coliforms are gram-negative, non-sporulating and motile or immotile bacteria. They…

Q: Microorganisms are used in the nitrogen removal process. Discuss why it isn't part of the secondary…

A: The aerobic self purification process that involves when the organic matter is added to the lakes…

Q: retort pouch is: a) Filled first with food product and then retorted (heat-sterilization) to extend…

A: In retort pouch food is filled into a pouch . Then it sealed and next heated to extremely high…

Q: What is a generally minimum pH for growth and toxin production by Clostridium botulinum and other…

A: Clostridium botulinum is a Gram-positive, rod-shaped, anaerobic, spore-forming, motile bacteria that…

Q: What advantages does the anammoxprocess have over classical wastewater treatments for N removal?

A: Anammox (anaerobic ammonium oxidation is a reaction that oxidizes ammonium to dinitrogen gas using…

Q: Botulism is cause by an: a)Rickettsia b)Aneorobic spore forming bacteria c)Gram negative…

A: Botulism is not common  but a serious disease. Botulism can be transmitted through contaminated…

Q: The process in which all organisms and pathogens are destroyed is called ------.  a) Disinfection…

A: Microbes are responsible for various diseases in humans as well as animals.Microbes and pathogens…

Q: Water contaminants fall into two general categories, chemical and biological. Describe each…

A: Water contamination refers to the presence of harmful substances or pollutants in water sources,…

Q: Describe and explain the major steps in the process ofwastewater treatment. How can artificially…

A: Introduction  :- Wastewater treatment is the process of removing contaminants from wastewater and…

Q: Which statement among A-D is false regarding physical and chemical agents of control? A) O Effective…

A: Sterilization and pasteurization are equivalent processes because both are used to kill…

Q: Benzoic acid is an antimicrobial chemical naturally found inwhich of the following foods?a) Apples…

A: The unicellular minute organisms which are not visible from the naked eye are known as microbes.…

Q: Which process converts ammonium (NH4+ ) into nitrate (NO3− )?a) Nitrogen fixationb) Ammonificationc)…

A: Nitrite removal is even easier, with nitrite being oxidized by the enzyme nitrite oxidoreductase and…

Q: Microbes have their biggest impact in which step of wastewater treatment? A) O preliminary B) O…

A: Wastewater treatment as the term suggests is the treatment of the sewage water in order to eliminate…

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: can you Explain in 1000 words, the role of sewage treatment in hospitals?

A: The operation of a sewage remedy plant approach that you could have one hooked up nearly anywhere,…

Q: State the purpose and importance of each process step in wastewater treatment.

A: Wastewater treatment: It is the process of converting wastewater that is of no use into an effluent…

Q: Describe how bacteria are used in sewage treatment.

A: The sewage is that is produced in huge quantities in human settlements like the cities are a huge…

Q: Unlike a disinfectant, an antiseptica) sanitizes objects rather than sterilizes them.b) destroys all…

A: Pathogen are the organisms that can cause disease or infections after invading the host cells and…

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: a) Anoxic sludge digestion is a secondary waste water treatment; what are the major microbial…

A: Waste water management includes two major steps : Primary treatment and Secondary treatment. In…

Q: Which of the following is a nitrogenous waste product that is rarely the final product eliminated by…

A: Kidneys are the organs belong to excretory system in our body and play a major role in several other…

Q: a) What is the consequence of discharging larger volumes of sewage that is untreated into a river?…

A: INTRODUCTION Sewage is the waste that contains liquid and solid wastes produced by human activities…

Q: feeding formulas

A: Tube feeding formula  is a formula that is designed for children or adults in order to provide…

Q: Describe situations that require high-level disinfection and thosefor which medium- or low-level…

A: Step 1 Disinfection involves the use of a chemical sterilant or agent to eliminate virtually all…

Q: Strict anaerobes cannot live in the presnece of oxgyen because: a.)they have to mitochondria…

A: Cell biology is the investigation of cell design and capacity, and it spins around the idea that the…

Q: Why should caps of glassware be loosened first before sterilization? [Answer in not more than 2…

A: Sterilization is defined as the process which removes , kills or deactivates all forms of life (in…

Q: The difference in the colony appearance of bacteria cells growing on mannitol salt agar is detected…

A: Mannitol salt agar is a selective culture media that is used for the isolation of the pathogenic…