Silica Precipitation from Geothermal Brines: Effects of Iron Addition, Kinetics, Temperature, pH, and Brine Concentration

doi:10.15121/1402498

Title: Silica Precipitation from Geothermal Brines: Effects of Iron Addition, Kinetics, Temperature, pH, and Brine Concentration

Abstract

This document provides results of experiments aimed at removing silica from geothermal brines. All experiments were conducted with simulated brines. The data presented shows the effect of iron addition, kinetics, temperature, pH and brine concentration.

Authors:: Renew, Jay

Publication Date:: 2016-02-06

Other Number(s):: 691

DOE Contract Number:: EE0006746

Product Type:: Dataset

Research Org.:: DOE Geothermal Data Repository; Southern Research Institute

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)

Subject:: 15 Geothermal Energy

Keywords:: geothermal; silica precipitation; pH effect; iron to silica ratio; temperature effect; brine concentration effect; kinetic effect; silica; pH; kinetics; temperature; precipitation; Si; iron; fe

OSTI Identifier:: 1402498

DOI:: 10.15121/1402498

Citation Formats


                    Renew, Jay. Silica Precipitation from Geothermal Brines: Effects of Iron Addition, Kinetics, Temperature, pH, and Brine Concentration.  United States: N. p., 2016. 
        Web.  doi:10.15121/1402498.

Copy to clipboard


                    Renew, Jay. Silica Precipitation from Geothermal Brines: Effects of Iron Addition, Kinetics, Temperature, pH, and Brine Concentration.  United States.  doi:10.15121/1402498.

Copy to clipboard


                    Renew, Jay. 2016.  
"Silica Precipitation from Geothermal Brines: Effects of Iron Addition, Kinetics, Temperature, pH, and Brine Concentration".  United States.  doi:10.15121/1402498.  https://www.osti.gov/servlets/purl/1402498. Pub date:Sat Feb 06 00:00:00 EST 2016

Copy to clipboard


                    
@article{osti_1402498,

  title        = {Silica Precipitation from Geothermal Brines: Effects of Iron Addition, Kinetics, Temperature, pH, and Brine Concentration},

  author       = {Renew, Jay},

  abstractNote = {This document provides results of experiments aimed at removing silica from geothermal brines. All experiments were conducted with simulated brines. The data presented shows the effect of iron addition, kinetics, temperature, pH and brine concentration.},

  doi          = {10.15121/1402498},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {2}

}

Copy to clipboard

Dataset:

View Dataset

DOI: 10.15121/1402498

Save / Share:

Export Metadata

Save to My Library

Geothermal Data Repository (GDR)

Anderson, Arlene ; Weers, Jon

The Geothermal Data Repository (GDR) is the submission point for all data collected from researchers funded by the U.S. Department of Energy's Geothermal Technologies Office (DOE GTO). The DOE GTO is providing access to its geothermal project information through the GDR. The GDR is powered by OpenEI, an energy information portal sponsored by the U.S. Department of Energy and developed by the National Renewable Energy Laboratory (NREL).

Similar records in DOE Data Explorer and OSTI.GOV collections:

Lithium Sorption from Simulated Geothermal Brine: Impact of pH, Temperature, and Brine Chemistry

Dataset Renew, Jay

Lithium sorption information from experiments. Data includes the effects of pH, temperature and brine chemistry on the sorption of Lithium from a simulated geothermal brine. The sorbent used in the experiments is "hydrothermally produced, Spinel-LiMn2O4". The sorbent was produced by Carus Corporation.
Nanofiltration Results: Membrane Removal of Calcium, Magnesium, Sodium, Silica, Lithium, Chlorine, and Sulfate from Simulated Geothermal Brines

Dataset Renew, Jay

Results from a nanofiltration study utilizing simulated geothermal brines. The data includes a PDF documenting the process used to remove Calcium, Magnesium, Sodium, Silica, Lithium, Chlorine, and Sulfate from simulated geothermal brines. Three different membranes were evaluated. The results were analyzed using inductively coupled plasma mass spectrometry (ICP-MS).
Improved Rare Earth Element Sorption from Simulated Geothermal Brines: Effect of Gassed versus Degassed Brines

Dataset Stull, Dean

A study exploring sorption and stripping characteristics of sorption media when simulated geothermal brines are degassed or not degassed. Experiments were done at 70°C. The brines used in this study were formulated by Tusaar. The two brines used/simulated are labeled 1M and 1CF. The data consists of a Word file explaining the results and an Excel file of the data.
On-line tests of organic additives for the inhibition of the precipitation of silica from hypersaline geothermal brine III. Scaling measurements and tests of other methods of brine modification

Technical Report Harrar, J E ; Locke, F E ; Otto, Jr, C H ; ...

The Lawrence Livermore Laboratory Brine Treatment Test System at Niland, Imperial Valley, California, has been used to evaluate a promising organic compound to the abatement of siliceous scale in brine handling equipment. Three-day scaling tests of Ethoquad 18/25 (Armak) alone (at a concentration of 25 ppM), and Ethoquad in combination with Dequest 2060 (Monsanto) showed a scaling rate reduction of 40 to 80% at 90/sup 0/C, 15 to 40% at 125/sup 0/C, and no reduction of 210/sup 0/C. Changes in the salinity of the brine during the test series were found to have a pronounced effect on the rates ofmore »« less
On-line tests of organic additives for the inhibition of the precipitation of silica from hypersaline geothermal brine IV. Final tests of candidate additives

Technical Report Harrar, J E ; Locke, F E ; Otto, Jr, C H ; ...

The Lawrence Livermore Laboratory Brine Treatment Test System at Niland, Imperial Valley, California, has been used to evaluate a number of cationic polymers and surfactants as scale control agents. An initial group of compounds was narrowed to four on the basis of their activity as silica precipitation inhibitors. Three of these and certain combinations of compounds were then given a 40-h test to determine their effectiveness in retarding scales formed at 220, 125, and 90/sup 0/C. The best single compound was Corcat P-18 (Cordova Chemical Co. polyethylene imine, M.W. approx. = 1800). It had no effect on the scale atmore »« less

Similar Records

Research Org:	National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:	USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Office