Installation of leakage barriers to enhance yield of mineral deposits in unlined solar pond systems

a solar pond and mineral deposit technology, applied in the field of slurry wall to seal solar ponds, can solve the problems of eroded dikes, solar ponds naturally leak brine to adjacent soils, and most unlined solar pond systems can lose as much as 70% of pumped-in brine to leakage, so as to reduce or prevent leakage from solar ponds

Inactive Publication Date: 2013-10-24
GREAT SALT LAKE MINERALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention broadly provides a method of reducing or preventing leakage from a solar pond. The method comprises forming a slurry wall in a dike adjacent the solar pond, with the slurry wall being formed from a mixture comprising clay, cement, and water.

Problems solved by technology

Rock and earthen solar ponds naturally leak brine to adjacent soils.
Most unlined solar pond systems can lose as much as 70% of the pumped-in brine to leakage.
The issue with clay dikes is that wave action often erodes these dikes, requiring constant repairs or eventually covering them with imported materials.

Method used

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  • Installation of leakage barriers to enhance yield of mineral deposits in unlined solar pond systems
  • Installation of leakage barriers to enhance yield of mineral deposits in unlined solar pond systems

Examples

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examples

[0030]The following examples set forth preferred methods in accordance with the invention. It is to be understood, however, that these examples are provided by way of illustration and nothing therein should be taken as a limitation upon the overall scope of the invention.

Materials and Methods

[0031]Table 1 sets forth the standards and methods utilized to test a number of the properties described herein.

TABLE 1Laboratory Standards and MethodsTestStandard or ReferenceGrainsize of soilsASTM D6913Fines ContentASTM D1140Atterberg LimitsASTM D4318Moisture ContentASTM D2216Soil Classification (USCS)ASTM D2487Water Quality (ph, Hardness, TDS)Hach Test or equalSlurry & Grout PreparationAPI 13A mod.Sample PreparationASTM D4832 mod.Slump (mini-slump method)ASTM D143 mod.Viscosity and DensityAPI RP 13B-1Filtrate, pH, and TemperatureAPI RP 13B-1Bleed and SetASTM C940 mod.Penetration ResistanceASTM D1558 mod.Unconfined Compressive Strength (UCS)ASTM D1633 / 4832 mod.Hydraulic Conductivity (permeabil...

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Abstract

Slurry walls and methods of using those slurry walls to seal unlined solar ponds are provided. The slurry walls are formed from a mixture comprising clay and cement in water. A trench is keyed into the dike surrounding the solar pond, down to a geotechnically predetermined level. The slurry is deposited into the trench and allowed to harden, after which it is covered with a membrane or other covering. The inventive slurry walls reduce, and preferably prevent, leakage of water from the solar pond.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a divisional application of U.S. patent application Ser. No. 13 / 240,597, which claims the priority benefit of U.S. Provisional Patent Application Ser. No. 61 / 385,449, filed Sep. 22, 2010, entitled, INSTALLATION OF LEAKAGE BARRIERS TO ENHANCE YIELD OF MINERAL DEPOSITS IN UNLINED SOLAR POND SYSTEMS, both of which are incorporated by reference in their entireties herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention is concerned with using a slurry wall to seal solar ponds, thus reducing, and preferably preventing, leakage from the solar pond.[0004]2. Description of the Prior Art[0005]Solar ponds have long been used to recover minerals from brine sources. While some pond systems are small enough to be rubber- or plastic-lined, most solar ponds designed for mineral recovery have been constructed from native or imported rock or soils. The native soils are used as a base material...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E02B7/02
CPCE02B7/02C04B28/02C04B28/08C04B14/042C04B14/102C04B14/104C04B22/002
Inventor REYNOLDS, MARKBURTON, THOMAS S.MILNE, COREY R.DAY, STEVEN R.
Owner GREAT SALT LAKE MINERALS CORP
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