Wörman, Anders
- Institutionen för energi och teknik, Sveriges lantbruksuniversitet
Sammanfattning
A theoretical description of reactive solute transport in a network of stream channels is derived by convoluting unit solutions based on a physical representation of transport and topographical information of the distributions of solute load as well as pathways. The theory is applied to a generic analysis of the phosphate export in Morsa watershed due to the load from 620 individual households with a local wastewater treatment. Essential factors for the phosphate export is filtering of the water in stream-bed sediments through a distribution of hyporheic flow paths of various lengths. This generic study indicates that a significant portion of phosphate is retained in the hyporheic zones for a long time. The 90\% recovery time following a hypothetical remediation action in the households is expected to be in the order of one decade
Nyckelord
solute transport; watersheds; stream network; hyporheic zone; transport model
Publicerad i
Archives Of Hydroengineering And Environmental Mechanics
2004, volym: 51, nummer: 1, sidor: 41-53
SLU författare
UKÄ forskningsämne
Fisk- och akvakulturforskning
Miljö- och naturvårdsvetenskap
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/5244