Beneficial uses of geothermal energy description and preliminary results for phase 1 of the Raft River irrigation experiment
The first phase of an experiment using geothermal water for irrigation is described and preliminary results are discussed. The water was from a moderate temperature well, having salinity of about 2000 ppM, and is considered characteristic of the types of geothermal fluids that will be obtained from the young volcanic/young sediment formations of the northern intermountain west. The activity was completed at a location adjacent to ERDA's Raft River Geothermal Project in southern Idaho. About 12.5 acres, of which part had no previous cultivation, were subdivided by crops and irrigation practices for investigation with the geothermal water and a control comparison water from the relatively pure Raft River. Flood and sprinkler application techniques were used and wheat, barley, oats, grasses, alfalfa, potatoes, and garden vegetables were successfully grown. An accompanying experiment evaluated the behavior of an established alfalfa crop located nearby, when most of the irrigation water was geothermal. The experiment addressed heavy metal uptake in plants, plant fluoride retention and damage, plant tolerances to salts, soil alterations and other behavior as a result of the geothermal fluids, all of which were largely believed to eliminate geothermal water from contention for crop growing utilization. Not all analyses and results are complete in this reporting, but first results indicate no apparent difference between the geothermal watered crops and those obtained using the fresh water control. Extensive chemical analyses, neutron activation analyses, and other evaluations of crop samples are discussed, and some of the findings are presented. Although evaluation of crop yields was not an objective, extrapolations from samples indicate that yield results were comparable to those commonly found in the area, and the yield varied little between water sources. (JGB)
- Research Organization:
- SEE CODE- 9502158 EG and G Idaho, Inc., Idaho Falls (USA). Idaho National Engineering Lab.
- DOE Contract Number:
- EY-76-C-07-1570
- OSTI ID:
- 7117150
- Report Number(s):
- TREE-1048
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AGRICULTURE
THERMAL WATERS
CROPS
IRRIGATION
BARLEY
CHEMICAL ANALYSIS
CULTIVATION TECHNIQUES
FLUORIDES
GRASS
METALS
OATS
PLANTS
POTATOES
RAFT RIVER VALLEY
SOIL CHEMISTRY
SOILS
TRACE AMOUNTS
VEGETABLES
WHEAT
BIOMASS
CEREALS
CHEMISTRY
ELEMENTS
ENERGY SOURCES
FLUORINE COMPOUNDS
FOOD
GRAMINEAE
HALIDES
HALOGEN COMPOUNDS
IDAHO
NORTH AMERICA
PACIFIC NORTHWEST REGION
RENEWABLE ENERGY SOURCES
TUBERS
USA
Geothermal Legacy
151000* - Geothermal Energy- Direct Energy Utilization