Show:
Causes
Treatment
Types
Effects
Facts
100
True or false: Natural phenomena such as earthquakes and volcanoes can contribute to water pollution.
What is true?
100
-The sewage first goes through a primary phase. This is where some of the suspended, solid particles and inorganic material is removed by the use of filters. -The secondary phase of the treatment involves the reduction of organic, this is done with the use of biological filters and processes that naturally degrade the organic waste material. -The final stage of treatment is the tertiary phase; this stage must be done before the water can be reused. Almost all solid particles are removed from the water and chemical additives are supplied to get rid of any left-over impurities.
How can industrially polluted water be treated?
100
Surface water pollution, groundwater pollution, microbiological pollution, nutrient pollution, oxygen depletion pollution, suspended matter pollution, chemical pollution
What are seven types of water pollution?
100
This is that it kills life that inhabits water-based ecosystems.
What is the main problem caused by water pollution?
100
10 trillion gallons
How much a year of untreated stormwater runs off roofs, roads, parking lots, and other paved surfaces, often through the sewage systems, into rivers and waterways that serve as drinking water supplies and flow to our beaches, increasing health risks, degrading ecosystems, and damaging tourist economies?
200
True or false: Contaminants of water pollution can be organic and inorganic.
What is true?
200
This is an ecological approach that can be used to prevent the leaching of nitrates in soil, this in turn stops any ground water from being contaminated with nutrients.
What is denitrification?
200
Point sources & Non-point sources
What are the 2 sources of water pollution?
200
These are among the most serious effects of water pollution, especially in developing countries, where sanitation may be inadequate or non-existent
What are human infectious diseases?
200
They are not connected to a treatment plant. Water from rain, storm drains, and ditches flows directly to streams and bays with little or no treatment.
How are storm drains and ditches are different than sewers?
300
True or false: Eutrophication is not a form of water pollution.
What is false?
300
Untreated sewage from a property flows into the septic tank and the solids are separated from the liquid. -Solid material is separated depending on their density. Heavier particles settle at the bottom of the tank whereas lighter particles, such as soap scum, will form a layer at the top of the tank. -Biological processes are used to help degrade the solid materials. -The liquid then flows out of the tank into a land drainage system and the remaining solids are filtered out.
How do septic tanks treat polluted water?
300
This is an example of a pathogen that can be found in water.
What is Burkholderia pseudomallei, Cryptosporidium parvum, Giardia lamblia, Salmonella, Novovirus, Parasitic worms, etc.
300
This is the most widespread, chronic environmental problem in the coastal ocean where the discharges of nitrogen, phosphorus, and other nutrients come from agriculture, waste disposal, coastal development, and fossil fuel use reach the coastal zone, stimulating harmful overgrowths of algae, which can have direct toxic effects and ultimately result in low-oxygen conditions.
What is nutrient pollution?
300
Throw all litter in appropriate trash cans. Keep litter out of pick up truck beds and cover loads so items aren't blown off to the ground. Recycle and reuse items whenever possible.
What is some ways to prevent litter from polluting the water?
400
Silt/sediment, detergent, cosmetic products
What are some inorganic water pollutants?
400
-Ozone wastewater treatment is a method that is increasing in popularity. An ozone generator is used to break down pollutants in the water source. -The generators convert oxygen into ozone by using ultraviolet radiation or by an electric discharge field. -Ozone is a very reactive gas that can oxidise bacteria, moulds, organic material and other pollutants found in water.
How does ozone help treat polluted water?
400
Organic & Inorganic
What are the 2 types of water contaminants?
400
1.the chemicals were dumped into the water intentionally; 2.the chemicals seeped into groundwater, streams, or rivers because of failing pipes or storage tanks; 3.the chemicals catastrophically contaminated waterways because of industrial accidents; 4.the pollution settled out of polluted air (or was precipitated out of polluted air); or 5.chemicals were leached out of contaminated soil.
What are some reasons chemical water pollution typically occurs?
400
This is an area of land which drains to the lowest point, usually a stream or bay. Everyone lives in one of these, so what everyone does on their property affects the water, even if they dont live on a water.
What is a watershed?
500
This type of pollution is the rise or fall in the temperature of a natural body of water caused by human influence.
What is thermal pollution?
500
Amembrane-technology filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane.
What is reverse osmosis?
500
These are large visible items polluting the water that may be termed "floatables" in an urban storm water context, or marine debris. Examples, trash, nurdles, shipwrecks
What is macroscopic pollution?
500
Some of the components of are degraded and dispersed by evaporation, photochemical reactions, or bacterial degradation, while others are more resistant and may persist for many years, especially in shallow waters with muddy sediments.
What happens when oil pollution gets in water?
500
This established the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters.
What is the Clean Water Act?