TY  - JOUR
N2  - Irrigation water salt concentration effects on sediment pond efficiency
were investigated to demonstrate the necessity of considering
the salt concentration in the irrigation waters when designing
sediment retention ponds. The influence of dissolved salt was determined
by adding concentrated CaCl2 solutions to three ponds and
then measuring electrical conductivities and sediment concentrations
at the pond outlets. Increasing the salt concentration increased the
sediment removal efficiencies when the retention time in the pond
exceeded 1 hour or the inflow sediment concentration exceeded 500
ppm for the three soils studied. Adding salt to laboratory soil sample
suspensions increased the settling rates for the two soils studied. That
data indicate that the salt concentration in irrigation water is an
important factor in determining sediment pond size and retention
time. Using pond design criteria obtained from sediment ponds
receiving water of a given salt concentration to design ponds that will
receive water with a different salt concentration should include
adjustments for salt concentration differences. A simple laboratory
test is suggested to predict which soils will respond to irrigation water
salt concentration changes that are likely to result in sediment pond
efficiency changes.
EP  - 481
ID  - nwisrl338
VL  - 42
IS  - 3
SP  - 478
JF  - Soil Science Society of America Journal
AV  - public
TI  - Irrigation Water Salt Concentration Influences on Sediment Removal by Ponds
A1  - Robbins, C.W.
A1  - Brockway, C.E.
Y1  - 1978///
UR  - https://eprints.nwisrl.ars.usda.gov/id/eprint/338/
ER  -