CIVENG 2J04 Study Guide - Brackish Water, Water Cycle, Desalination

• School: McMaster University
• Department: Civil Engineering
• Course: CIVENG 2J04
• Professor: N A

Document Summary

Strategies for controlling eutrophication include (question asks to list 3 of these): Controlling non-point sources of nutrients: 97% of earth water is saltwater. Two technologies which are used for desalinization are; Microfiltration or reverse osmosis: great pressure forces seawater through a membrane fine enough to remove salt. (small industrial plants) Distilation: evaporation & re-condensation need energy source for heating. Naturally found in rocks and soil minerals however, fertilizers and sewage sludge also contain large amounts of phosphorus: major sources of nitrogen are; Note: only 3 of these were asked for in the question: list and briefly describe the profile of mature soil horizons. C weathered parent material: the main characteristics of a productive soil are: Good water infiltration and water-holding capacity, resists evaporative water loss; Low salt content: 8 elements which make up 98% or the earth crust are oxygen (46. 6%), silicon (27. 7%), Aluminum (8. 1%), iron (5. 0%), calcium (3. 6%), sodium (2. 8%), potassium (2. 6%), and.