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- Make a unique answer: Describe the methods for identifying and quantifying microbial contaminants in water supplies.Explain the processes of bioaccumulation and biomagnifi cation of toxic elements and the problems they cause.What is the significance of routine solid waste collection in terms of environmental health? Briefly describe it
- Explain the processes of bioaccumulation and biomagnification oftoxic elements and the problems they cause.Discuss the role of acids, bases, buffers and pH in water quality monitoring and post-harvest fisheries.Discuss the water treatment plants methods for treating water to make it potable and the contribution of detergents and other chemical waste to water quality. Compare and contrast two waterways where water contamination is extreme (i.e. the Ganges) and another (i.e. the Golden Horn of Istanbul) where waterways have been cleaned up and rehabilitated and discuss the contributing factors to both situations.
- Discuss the process of purifying drinking water and the importance of each step in the removal of contaminants.Formulate a compost mixture of at consisting of least three ingredients using the Cornell Composting Spreadsheet that will satisfy the range of percent moisture content from 50-60% and the range of C:N ratio from 25 to 35. A composting bioreactor has a total capacity of 500 kg. The total weight of the mixture ranges from 400-500 kg. Example: Ingredient % Moisture % Carbon % Nitrogen Mass (Ibs.) Laying hens manure 69.0 48.0 8.0 100 Leaves, Loose and dry 15.0 48.6 0.9 65 Corn cobs 15.0 58.8 0.6 150 Water 100.0 0.0 0.0 150 Total 465 Calculated mixture moisture content: 54.0 Calculated mixture C/N ratio: 31.2Give Specific examples of indicator organisms and water-borne pathogens?
- Which of the following are properties of good indicator organisms for water quality? Select all correct answers. not found in the presence of pathogens. better survival rates than pathogens. present whenever pathogens are present in water. capable of reproduction in contaminated waters. incapable of reproduction in contaminated waters. absent in uncontaminated water present in uncontaminated water (endemic) worse survival rates than pathogens.Correlate changes in nutrient concentrations in natural environments with the five phases of a microbial growth curveCharacterize environmental, infectious, and nutritional disease agents in aquaculture based on their mortality pattern