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Questions and Answers
What is a major issue with the way we use freshwater?
What is the current state of freshwater distribution?
What is the focus of Module 5?
What is the duration of the module?
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What is one of the expected outcomes of the module?
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What is a major concern about the use of freshwater?
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What is the ratio of people who do not have adequate access to clean water?
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What is the main issue with the way we use freshwater resources?
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What is the focus of Lesson 5.1?
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What is the general term for the way we use freshwater unsustainably?
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Study Notes
Water Resources and Water Pollution
- Freshwater is the natural water occurring on earth's surface in various forms, including ice sheets, ice caps, glaciers, ponds, lakes, rivers, and underground water.
Importance of Clean Water
- Access to clean water is essential but limited, and all freshwater habitats are dominated by the physical properties of water.
Water Pollution
- Water pollution occurs when there is a change in water quality that can harm living organisms or make the water unfit for human uses such as drinking, irrigation, and recreation.
Alternative Disinfectants
- The use of ozone and ultraviolet light as disinfectants is increasing, but they are more expensive and their effects do not last as long as those of chlorination.
Conventional Sewage Treatment
- Some scientists suggest redesigning conventional sewage treatment systems to prevent toxic and hazardous chemicals from reaching treatment plants and subsequently contaminating sludge and water.
Pollution Prevention Approach
- This approach involves requiring industries and businesses to remove toxic and hazardous wastes from water sent to municipal sewage treatment plants, and encouraging the use of waterless, odorless composting toilet systems.
Waterless Composting Toilet Systems
- These systems return plant nutrients in human waste to the soil, mimicking the chemical cycling principle of sustainability, and can be installed, maintained, and managed by professionals.
Course Description
- The course covers environmental classification, laws, and issues affecting the natural environment, as well as safety and safety precautions.
Course Outcomes
- After completing the module, students will be able to understand the importance of conserving the natural environment, discuss freshwater and its importance, define groundwater, surface water, and run-off, and determine sources of water pollution.
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Description
This module covers water resources and water pollution, exploring topics related to environmental science and civil engineering. It includes an overview, lecture, and debate on the topics.
