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| Process for obtaining fresh water, removes salt from ocean water. |
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| Salted fields. Typically occurs in hot, dry areas of the world |
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| Method for reducing floods in an area. Reduces natural overflow causing a buildup and when the levee finally ends, the flood is worse in the area. Floods also tend to break the levees causing devastating floods to the area |
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| The way pollutants travel while in the watertable. Can be tracked and monitered as well as traced to origin point. |
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| Amount of heavy metals (Iron, lead, copper, etc) present in drinking water. |
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| First stage of sewage treatment, consists of seperation screens. Physical seperation. |
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| Featured in the grey water system of water, gray water is the term for used water that isn't necessarily dirty. This includes water from the sink or dishwasher. In the grey water system, this water is collected in a grey water storage tank, then sent to the toilet, or outside to water the lawn. Afterall, what's the point of using drinking water to fill the toilet? |
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| Area around a river that is designed by nature to handle a flood of the river. Tends to be relatively flat, and fertile. |
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| Secondary Sewage Treatment |
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Definition
| Activated sludge process. Signifigatly decreases the biological content of the waste. |
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| Formerly the largest Aquifer in the United States, is nearing total depletion due to over-draining. Located in the Great Plains and spans several states. |
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| Cheaper than Ozonation, is an effective method of removing pathogens from water. Is ineffective against cryptosporidium. |
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| Tertiary sewage treatment |
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Definition
| Raises effluent quality before it is discharged into the environment. |
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| A measure of the amount of sediments in water |
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| By-product of chlorination, formed when the body of water has high levels of organic matter. |
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| Caused by Consumption of groundwater while near an Ocean, allowing the salt water to intrude on the water table, causing soil salinization. |
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Definition
| Most efficient form of irrigation, pinpricks in a hose allow small amounts of water to drip out. |
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Definition
| Biological Oxygen Demand and Dissolved Oxygen |
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| Caused by sewage/fertilizer being dumped into water, this is the resulting population boom of algae. |
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| Fishkill. A near-total loss of DO. Causes nearly everthing in that section of river to die, anaerobic decomposers then come in. |
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Definition
| Using resources wisely, and more efficently |
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Term
| Non point source pollution |
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Definition
| pollution originating at an area. Ex: Farms, golf courses, etc. |
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Definition
| Pollution originating from a specific spot. Ex: Illegal Dumping. |
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| National Environmental Policy Act |
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Definition
| Anything built outside needs to have environmental consequences of construction/project reviewed - Environmental impact statement |
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