Engineering

Ecology

Biology

Geotechnical engineering

Metallurgy

Materials science

Roof

Civil engineering

Surface runoff

Geology

Environmental engineering

Geography

Hydrology (agriculture)

Drainage

Environmental science

Infiltration (HVAC)

Stormwater

Meteorology

Copper

Water Science & Technology

On-site infiltration of a copper roof runoff may contribute to deterioration of the ground and ground water. To avoid such a negative effect the performance of two different technical systems, equipped with four different barrier materials, regarding copper elimination was examined in a field study. During the period March 2004 to January 2005, 16 rain events were examined. Copper concentrations between 200 and 11,000 microg/L in the roof runoff during a rain event were observed. The cover material of the roof and the drainage system were responsible for the high concentrations of copper in the roof runoff. It was evident that roof aspects facing towards the wind direction were receiving higher rainfall, thus were establishing higher copper runoff rates. The retention facilities have reached a performance of up to 97% regarding copper elimination.

Infiltration of a copper roof runoff through artificial barriers