Upload
raymond-washington
View
239
Download
0
Tags:
Embed Size (px)
Citation preview
Solar Evaporation Ponds offer a salinity control method that
is:
Technically feasible
Economically viable
Environmentally friendly
Evaluation of suitable area for siting of solar evaporation ponds at the Salton Sea based on soil seepage, slope, and considerations of land use
Concentrator
Pond 1Concentrator
Pond 2Concentrator
Pond 3
Solid
Salt
Pond
Water from Salton Sea
Bittern
salts
Water volumeConcentration
The evaporation ponds concentrate salt and evaporate water
until only solid and bittern salts remain
How Evaporation Ponds can Control Salinity at the Salton Sea
Salton Sea
Inflow to Sea: water + salt
No outflow: salt accumulates
Water + salt removed to evaporation ponds:
Water evaporates
Salt remains on shore
Wildlife Refuges in Salt Pond Habitat
San Diego National Wildlife Refuge with
Western Salt
Don Edwards NWF San
Francisco Bay with Cargill Salt
CDF&G Wildlife Refuge Napa, State management alone
Potential accumulation of contaminants in concentrators
and solid salt deposits
Selenium Pesticides Metal residues Other agricultural chemicals such
as fertilizers
Preliminary indications are that these issues will not prove to be problems
for solar evaporation pond implementation
Advantages and Benefits
Solar ponds most economical Solar salt ponds in use for over 100 years Solar salt ponds can be managed for habitat “Win – Win” situation for salinity control and
habitat Alternatives available to deal with loss of
water in the Sea Economic and environmental benefits to
area
Future of Solar Evaporation Salt Ponds at
the Salton Sea
Salinity problem must be addressed in order to maintain habitat values
Assessment of environmental concerns is in progress
The most viable and beneficial solution available to solve the
salinity problem
Results from the brine chemistry investigations
Chloride
0510152025
B22B27B39B24B21B35
Sample
Wt
% Series1
Series2
Series3
Series4
BR
Magnesium
0
2
4
6
8
Sample
Wt
%
Series1
Series2
Series3
Series4
Calcium
0
0.02
0.04
0.06
0.08
B22B27B39B24B21B35
Sample
Wt
%
BR
AR
h-P
Sulfate
024681012
B22B27B39B24B21B35
Sample
Wt
%
Series1
Series2
Series3
Series4