Mercury
Mercury
Mercury
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source and pollution of surface<br />
1. source:<br />
active agent<br />
• 1960s, already largely used in detergent industry<br />
• 1999, global annual use reached 9.3 million t<br />
• 2000, global annual use reached 10.8 million t<br />
• 2005, global annual use reached 12.5 million t<br />
• A large portion of used surface active agent enters<br />
waste water.<br />
• The problem of the degradation of surface active<br />
agent requires attention from environmentalists.
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