Reducing the impact of artificial eutrophication
A reduction in the extent of artificial eutrophication can (in principle)
be achieved by
- reducing the use of phosphates as builders in detergents
- reducing the use of nitrate containing fertilisers
- using tertiary sewage treatment methods to remove phosphate and nitrate
before discharge of the effluent into rivers and lakes
- directing waste water away from lakes to rivers and the sea
- aerating lakes and reservoirs to prevent oxygen depletion particularly
during algal blooms
- removing phosphate-rich plant material from affected lakes
- removing phosphate-rich sediments by dredging.
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