Discuss the microbial ecology contributing to crowncorrosion of concrete sewer lines. In considerationof this ecology, what intervention strategies might beuseful in reducing or eliminating corrosion?

Q: Name the pollutants which are degradable.

A: Pollutants are considered as undesirable changes in physical, chemical or biological characteristics…

Q: Which of the following is not a stage in purifi cation of drinking water: a. fi ltration c.…

A: Step 1 Water is the only naturally occurring inorganic liquid found on earth. Water is the most…

Q: Which of the following microorganisms are not derivedfrom human pollution but can be found in water…

A: The small microscopic and unicellular organisms are called microorganisms. There are many types of…

Q: Imagine a sewage plant that is releasing sewage containinghigh levels of ammonia and phosphate and…

A: Sewage refers to wastewater, which is produced due domestic or industries. It contains a variety…

Q: During secondary treatment or biological treatment which of the following do not happen (1) Decrease…

A: Secondary wastewater purification systems use microorganisms to remove contaminants from…

Q: Which of these are known to host chemosynthetic communities? a) Hydrothermal vent O b) Hydrocarbon…

A: The food chain in our ecosystem depends on the primary producers as they are capable of harvesting…

Q: What is the key difference between primary and secondary sewage treatment?

A: The sewage treatment is the process of removing contaminants from wastewater containing household…

Q: Compare and contrast the processes that occur during primary, secondary, and tertiary wastewater…

A: Water pollution is caused primarily by the drainage of contaminated wastewater into surface water or…

Q: Micro-organism play an important role for the biological treatment of sewage.justify

A: we know that large quantities of waste water are generated everyday in cities and towns. A major…

Q: The activated sludge process was developed from empirical knowledge and is now widely used for…

A: Activated sludge-The activated sludge process is a type of wastewater treatment process for treating…

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 are the various constituents of domestic sewage? Discuss theeffects of sewage discharge on a…

A: Domestic sewage is characterized by waste water that discharged from the residential areas.

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: Expalin in detail the one use and one potential environmental risk of sludge usage.

A: The primary treatment of wastewater is the first stage of the treatment process. In this process,…

Q: In fixed-bed leaching, how it can be leached please mention one or two only.

A: Asked : Fixed-bed leaching

Q: Define three types of wastewater collection systems (Sewer Systems)? Describe any three sewer…

A: Step 1 Sewer system or sewerage system comprises a network of pipelines and technical installations…

Q: Explain why most microorganisms are present in the upper layers ofthe soil.

A: Abiotic and biotic constituents make up the biosphere. The tiny, minute organisms that cannot be…

Q: Which step of wastewater treatment removes most of the BOD?

A: Wastewater (sewage) is polluted water which includes all harmful liquid, solid or gaseous substances…

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: The rate of decomposition of detritus is affected by the abiotic factors like availability of…

A: Decomposition is usually defined as the way that the process of breaking down the trash into simpler…

Q: Which of the following microorganisms require the major available (aW) of water to proliferate?

A: aW is the water activity, is the measurement of available water. 0.62 is the minimum requirement for…

Q: How are microbes usedin the bioremediation of contaminated groundwatersites and What is the…

A: We know that due to excessive human activities our natural resource like water is getting…

Q: Expalin the way in which pathogens slip through processes of water analysis and treatment undetected…

A: Drinkable water is necessary for optimum health, and its significance of water is widely recognized.…

Q: Name the secondary pollutant.

A: Pollution is introduction of any substance which causes undesirable disturbances in the environment/…

Q: You are the lead technical officer at the Environmental Management Authority. You have been asked to…

A: Ecosystem: A chain of interaction between living (biotic) and non-living (abiotic) in a specific…

Q: Prior to better regulatory control of metal release into domesticwastewater systems, crown corrosion…

A: Chemolithotrophs: These are a group of various microbes that can get all the energy essential for…

Q: Every year, supposedly safe municipal water supplies cause outbreaks of enteric illness. Using the…

A: Contamination of the public water supply in Milwaukee during March and April 1993 resulted in a…

Q: Name the agents that carry any kind of pollution.

A: Pollution is the introduction of the undesirable element in the environment which affects the…

Q: a) State three (3) advantages and three (3) disadvantages of withdrawing groundwater.

A: Advantages of withdrawing groundwater It is less polluted because it is not contaminated by humans…

Q: Which statement among A-C is not applicable to flocculation, or floc formation, during wastewater…

A: Flocculation : Flocculation is a process in which solids form larger clusters or flocs which further…

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: Explaination of primary and secondary sewage treatment?

A: We know that large quantities of wastewater are generated everyday in cities and towns. a major…

Q: Identify and describe some wastewater treatment processes in which a detritus food web plays a role.

A: A detritus food chain is one that begins with dead organic materials. Microorganisms decompose dead…

Q: Role of microbes in sewage and domestic waste water treatment ?

A: Microbes play an important role in sewage and domestic water treatment. The primary effluent ,passed…

Q: What general procedures are used to reduce microbial numbers(microbial load) in water supplies?

A: Raw water has a large amount of microbial load in the water due to presence of various organic and…

Q: Describe the environmental factors that influence indoor fungal contamination. Outline the factors…

A:

Q: Z During secondary treatment or biological treatmen which of the following do not happen (1)…

A: Secondary treatment : This is a wastewater treatment stage which follows the primary stage. In this…

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: Wastewater from a local hospital were being treated in a general wastewater treatment plant (WWTP)…

A: Waste management is an important element of environmental protection. Its purpose is to provide…

Q: Identify (stepwise) the process of purifying drinkingwater. What important contaminants are targeted…

A: The process of water purification involves the following steps Aeration Coagulation Flocculation…

Q: Correlate changes in nutrient concentrations in natural environments with the five phases of a…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: State four reasons why even degradable contaminants ten to persist in groundwater

A: Degradable wastes or pollutant such as discarded vegetables or domestic sewage do not need any…

Physical and Chemical features

The physical property of a compound could be determined without modifying the originality of the compound. Examples of physical properties are density, hardness, color, boiling, and melting point. The chemical property expresses the ability of a compound to undergo a particular chemical change.