osmosis. These processes require large amounts of energy. 5.10.1.3 Urban lifestyles and industrial Comment on the relative 1 Research how water is Several water processes produce large ease of obtaining treated. companies provide amounts of waste water that potable water from resources for require treatment before waste, ground and salt Extended writing: detail the schools regarding being released into the water. methods involved. sewage treatment, environment. Sewage and for example: agricultural waste water require removal of organic Video clip matter and harmful microbes. YouTube: Industrial waste water may require removal of organic matter and harmful chemicals. Sewage treatment includes: screening and grit removal sedimentation to produce sewage sludge and effluent anaerobic digestion of sewage sludge aerobic biological treatment of effluent. 5.10.1.4 The Earth’s resources of Evaluate alternative 1 Extended writing: describe Research information for the Video clip (HT metal ores are limited. biological methods of the processes of processes of: YouTube: only) metal extraction, given appropriate information. phytomining phytomining
osmosis. These processes require large amounts of energy. 5.10.1.3 Urban lifestyles and industrial processes produce large amounts of waste water that require treatment before being released into the environment. Sewage and agricultural waste water require removal of organic matter and harmful microbes. Industrial waste water may require removal of organic matter and harmful chemicals. Sewage treatment includes: screening and grit removal sedimentation to produce sewage sludge and effluent anaerobic digestion of sewage sludge aerobic biological treatment of effluent. Comment on the relative ease of obtaining potable water from waste, ground and salt water. 1 Research how water is treated. Extended writing: detail the methods involved. Several water companies provide resources for schools regarding sewage treatment, for example: Video clip YouTube: 5.10.1.4 (HT only) The Earth’s resources of metal ores are limited. Evaluate alternative biological methods of metal extraction, given appropriate information. 1 Extended writing: describe the processes of phytomining Research information for the processes of: phytomining Video clip YouTube:
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