List three characteristics required of a good sewage indicator:

Q: Describe the sources and name examples of hazardousmaterials in the environment.

A: Hazards are regarded as the adverse activities that occur in the ecosystem. Human events or natural…

Q: A poultry company has acquired your services as an expert in environmental microbiology to assist in…

A: Water is an essential element of our life. It maintains our body temperature, distributes other…

Q: Describe in detail the four steps of industrial product production from microbes.

A: Microbes are first used to create industrial products in a fermentor in a lab. It is a tool that…

Q: Why is algae being grown in wastewater

A: INTRODUCTION Production and emission of CO2 from different sources have caused significant changes…

Q: Explain the imporance of using a control tube with only broth when measuring turbidity in a…

A: Introduction :- There are two types of growth medium or media which are used to grow microorganisms…

Q: What levels of creosote is soil are considered safe and harmful? Please put answers in  µg/g.

A: Creosote is a mixture of hundreds of chemicals that is used to preserve wood and as a pesticide. It…

Q: Why is a small volume nebulizer preferred over an MDI.

A: Metered dose inhalers (MDIs) are portable medical devices that administer medication directly into…

Q: If you are planning to grow maize crop on your land area (2 hectares) and the recommended dose of…

A: Nitrogen (designated by the letter N) is a very important component of chemical fertilizers used in…

Q: _____ kills pathogens and some spoilage organisms but does not sterilize substances. Tyndallization…

A: Sterilization refers to any process that removes, kills, or deactivates all forms of life, in…

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: 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: How does the Food Standards Code define a 'contaminant'?

A: Food contamination alludes to the presence of unsafe synthetic chemicals & microorganisms in…

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

A: Asked : Fixed-bed leaching

Q: What is e-waste, and why is it a growing concern?

A: E-WasteE-waste is defined as the waste released by the selling and purchasing of electronic…

Q: What other methods can be used to determine the microbiological quality of water? What infectious…

A: Answer : The other  suitable method for examining the presence of microorganisms in water is…

Q: There is quite a bit of concern that chlorine used as a water purifi cation chemical presents…

A: Chlorine is used as a disinfectant in water treatment plants.

Q: Describe two methods of water analysis.

A: Water could dissolve most of the biological molecules in it and so it is known as a universal…

Q: The Allium Test is a common test in environmental science. What are some disadvantages to this test?

A: Biotechnology is technology that utilizes biological systems to develop or create different…

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

A: Sludge The accumulated solids or biosolid residues in the sewage water treatment plants (typically…

Q: ats are hydrophobic while phospholipids are amphipathic. Define ydrophobic and amphipathic, and…

A: Amphipathic : a substance or a chemical compound that possesses both hydrphobic and hydrophillic…

Q: With the low nutrient concentrations in manures/organic matter, why use it at all

A: In agriculture, plant yield is enhanced by using pesticides and chemical fertilizers such as urea,…

Q: Give an example of a European standard for evaluating efficacy of disinfectant against one type of…

A: The terminology used to describe various chemical disinfectants reflect their efficiency. Chemical…

Q: What temperature is considered adequate for achieving sterilization of a compost pile?

A: temperature considered for achieving sterilization of a compost pile is 135-160 F. At a…

Q: Explain the stages of the beer production: Malting Milling Mashing Boiling Fermenting Packinging

A: In order to make beer, you need grains, usually malted barley, hops, yeast, as well as and water.

Q: Name the thing which is not used for disinfection of drinking water.

A: Water from natural water bodies contains various disease-causing germs or pathogens which can cause…

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: Describe, in order, the 6 steps of cleaning drinking water (filtration, flocculation, corrosion…

A: Water is life. It is the number one source of nutrition. Human body is made of 60% of water . Water…

Q: Cite examples of food products processed under each type of canning method: 1)Pressure canning  2)…

A: Canning is a type of food preservation method in which the food is processes and sealed in a…

Q: Which of the following activities would be performed within the Anteroom environment? Select one: a.…

A: Anteroom is a closed passage area between the cleanroom and the support zone in that area workers of…

Q: Name a non biodegradable pesticide.

A: Non biodegradable indicates the property of a substance which cant be decompose either by bacteria,…

Q: List and describe the different levels of effectiveness of germicidal chemicals.  In that…

A: Germicidal chemical is something (such as an antiseptic or disinfectant) that destroys or…

Q: Give a microbial species or microbial group that could be involved in the following: Alcohol…

A: Microorganisms are life forms that are excessively little to be seen without utilizing a magnifying…

Q: Discuss the different methods of water analysis to determine pollution.

A: Introduction Water quality analysis is performed to assess the chemical, physical, and biological…

Q: What are the common tests that are used to identify water quality? Briefly describe them

A: Water quality tests will give information about the health of the waterway. These tests are…

Q: A given municipal wastewater can be treated with the following methods. N + AS, Activated sludge…

A: Lime It works as a neutralizer and precipitant of chrome, copper, and heavy metals present in…

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: A water sample was taken from the Waikato River and returned to the laboratory to analyse water…

A: CFU is an abbreviation for Colony-Forming Unit. It is a unit of measurement used to estimate the…

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: Chemicals that may be sterilants are called

A: High level germicides are a category of chemicals that have the ability to kill a wide range of…

Q: Name the secondary pollutant.

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

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 the significance of water is widely recognized.…

Q: Surface and Sub-surface drip lines apply the water only where it is used and therefore weeds are…

A: Irrigation is a process of supplying a controlled quantity of water to the land or crop through a…

Q: You are asked to determine the settleability of biomass in a suspended growth activated sludge…

A: The settleability of biomass in a suspended growth-activated sludge sample is an important parameter…