'Coarse gravel' diaporamas de présentation

The Use of Wetlands as Water Treatment Systems

The Use of Wetlands as Water Treatment Systems. David Chervek BAE 558, Spring 2005. Introduction. Global population growth is creating a two-part problem with water supplies. An increase in the amount of potable water needed for consumption. An increase in the amount of wastewater created.

460 views • 28 slides

Levees

Levees. Artificial levees prevent floods Usually made with fine-grained sediments that are easily eroded in floods Higher-quality levees mix coarse gravel or face with riprap to resist erosion. Levees. 1800. 12. Recurrence Intervals and Discharge.

641 views • 25 slides

ARTIFICIAL WETLAND MODELLING FOR PESTICIDES FATE AND TRANSPORT

358 views • 20 slides