Silica Sorption Process: Thermal Treatment Of Produced Water

The Silica Sorption Process technology from Veolia Water Technologies is a cost-effective method removal of silica from produced water from SAGD (steam assisted gravity drainage) extra heavy oilfield operations. The Silica Sorption Process technology from Veolia Water Technologies is a cost ...

Get Price[...]

Behavior of Silica: Technologies Available & How They Rate ...

Mar 14, 2004· By Peter Meyers Summary: Silica has always confounded water treatment dealers in how to handle it and greatly reduce the contaminant. As we discover more information about silica due to further studies, though, some technologies have come to the fore. A good place to begin is to examine the chemistry of silica and how it […]

Get Price[...]

REMOVAL OF BORON FROM PRODUCED WATER BY CO …

by Co-precipitation / Adsorption for Reverse Osmosis Concentrate Imran Rahman Co-precipitation and absorption methods were investigated for removal of boron from produced water, which is groundwater brought to the surface during oil and natural gas extraction. Boron can be toxic to many crops and often needs to be controlled to low

Get Price[...]

Oil & Gas - Veolia Water Technologies

Cutting-edge production methods in the oil and gas industry, such as Gas-to-Liquid (GTL) and produced water treatment for boiler feed water, require stringent levels of wastewater treatment to achieve environmental objectives to Zero Liquid Discharge (ZLD) and provide beneficial reuse as valuable makeup water.. Veolia offers highly integrated ZLD systems as a total solution for oil and gas ...

Get Price[...]

Water Treatment’s ‘Gordian Knot’ - University of Crete

water, or to use of chemical water treat-ment techniques that prevent silica-scale formation and deposition. Silica and/or silicate deposits are par-ticularly difficult to remove once they form. Harsh chemical cleaning (based on hydrofluoric acid) or laborious mechanical removal usually is required. In addition, the potential for silica scale

Get Price[...]

Omniphobic Membrane for Robust Membrane Distillation ...

In this work, we fabricate an omniphobic microporous membrane for membrane distillation (MD) by modifying a hydrophilic glass fiber membrane with silica nanoparticles followed by surface fluorination and polymer coating. The modified glass fiber membrane exhibits an anti-wetting property not only against water but also against low surface tension organic solvents that easily wet a hydrophobic ...

Get Price[...]

Silica gel - Wikipedia

Silica gel is an amorphous and porous form of silicon dioxide (silica), consisting of an irregular tridimensional framework of alternating silicon and oxygen atoms with nanometer-scale voids and pores.The voids may contain water or some other liquids, or may be filled by gas or vacuum.In the latter case, the material is properly called silica xerogel. ...

Get Price[...]

10 Produced Water Treatment Technologies: Evaluating The ...

Apr 14, 2014· It works best with produced water containing less than 3,000 mg/L TDS. Studies have shown that CDI results in a poor removal of uncharged substances such as boron and organics. Brackish Water Reverse Osmosis (BWRO) With the right pretreatment methods, BWRO can be an excellent method for treating produced water.

Get Price[...]

METHODS FOR TREATMENT AND USE OF PRODUCED WATER

Produced water is treated by raising the pH to a level that significantly increases silica solubility and breaks emulsions. So treated water is then de-oiled, filtered, and subjected to ion exchange chromatography to reduce water hardness prior to feeding into a …

Get Price[...]

Characterizing and Exploring the Formation Mechanism of ...

To dispose of large volumes of oilfield-produced water, an environmentally friendly method that reuses advanced-softened, silica-rich, oilfield-produced water (ASOW) as feedwater was implemented via a 10-month pilot-scale test in oilfield.

Get Price[...]

Omniphobic Polyvinylidene Fluoride (PVDF) Membrane for ...

Omniphobic Polyvinylidene Fluoride (PVDF) Membrane for Desalination of Shale Gas Produced Water by Membrane Distillation Chanhee Boo, Jongho Lee, and Menachem Elimelech* Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States * S Supporting Information

Get Price[...]

Characterizing and Exploring the Formation Mechanism of ...

Nov 26, 2015· Characterizing and Exploring the Formation Mechanism of Salt Deposition by Reusing Advanced-softened, Silica-rich, Oilfield-produced Water (ASOW) in Superheated Steam Pipeline.

Get Price[...]

Nanofiltration for the Treatment of Oil Sands-Produced Water

For the separation of DOM, salt, and silica from oil sands-produced water, it is essential to use tighter NF and RO membranes . 3. Oil sands-produced water treatment by nanofiltration. An overview of published studies on oil sands-produced water treatment using NF membranes is presented in Table 1. Although NF membranes are widely applied in ...

Get Price[...]

Silica removal from steamflood produced water: South Texas ...

This paper describes a field pilot study of silica removal from steamflood produced water in the South Texas Tar Sands region. A hot-lime precipitation process was used to reduce dissolved silica concentrations from 400 mg/l to less than 50 mg/l SiO/sub 2/ in Mary R. Saner Ranch produced water.

Get Price[...]

Steam Generation Using Produced Water: Lessons Learned

water. The emulsion is broken and the produced water is treated for reuse in the steam generators. This produced water has a much lower purity than water commonly used to feed conventional boiler systems. High concentrations of silica and soluble organic species are present. Ammonia and sulfide ion are also regularly present. Special once ...

Get Price[...]

Discussion for IWC-09-36: Prepared Discussion For: Steam ...

Boiler Water Contaminants Produced waters cycle up with many contaminants and treated boiler feedwaters can have up to 10,000 ppm TDS (total dissolved solids). Contaminants referred to by the author are “high concentrations of silica and organic species” in the resultant boiler feedwaters.

Get Price[...]

Silicon dioxide - Wikipedia

Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula Si O 2, most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand.Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as synthetic product.

Get Price[...]

Nanoflotation RSL membranes SAGD Produced Water Silica ...

Apr 22, 2017· Nanoflotation RSL membranes SAGD Produced Water Silica removal Replacmt of WSL david bromley. ... Effects of Surfactans in oil in water and water in oil emulsion - …

Get Price[...]

US Patent for Method for treatment of high pH/silica ...

Water treatment literature recommends the use of multi-valent salts such as magnesium, aluminum, and iron at a pH of 10-12 to remove silica. However, water produced in Tar Sands type formations in the process of generating high pressure steam for injection, is typified by a lack of these multi-valent ions as the pH has been raised to increase ...

Get Price[...]

An innovative, economical method of silica removal from waters

Aug 13, 2012· The removal of contaminants, such as silica, from water can be a challenging proposition. Some examples of industries that need to remove silica from the water before discharge or reuse are: cooling towers, boiler blow feed water or boiler blow down water, carwashes, semi-conductor manufacturers and steam injection oil recovery wastewater.

Get Price[...]

Produced Water - Veolia Water

Produced water is not only hot and rich in dispersed, emulsified and dissolved oil. Produced water has high concentrations of suspended silica (e.g. sand, silt) and high salinity caused by the presence of dissolved ions of sodium, potassium, magnesium, chloride, and sulfate.

Get Price[...]

Alternative Silica Removal Technologies - cosia.ca

The COSIA Water Environmental Priority Area Steering Committee invites proposals for silica removal technologies to remove silica from Steam Assisted Gravity Drainage (SAGD) produced water, to improve the environmental performance of the oil sands. Proposals based on work that is a proven concept are desired.

Get Price[...]

FILMTEC Membranes Water Chemistry and Pretreatment: …

FILMTEC Membranes Water Chemistry and Pretreatment: Silica Scale Prevention Silica Scale Prevention Dissolved silica (SiO 2) is naturally present in most feed waters in the range of 1–100 mg/L. The prevailing forms of silica are meta silicic acids as (H 2SiO 3) n with low n numbers. Since

Get Price[...]

Effect of the silica-rich, oilfield-produced water with ...

Apr 01, 2015· In the silica-rich, oilfield-produced water, concentrations of Ca, Mg and Fe ions are the major factors that contribute to the formation of scales. The silicon content in scales is reduced with the concentrations of decreasing in the feedwater, which is attributed to the strong reaction between the Ca and Fe ions and silicate.

Get Price[...]

State of the Art Treatment of Produced Water | IntechOpen

Produced water is water trapped during subsurface formations which is brought to the surface along with oil or gas. It contributes the largest volume of waste stream associated with oil and gas production. Globally, 77 billion bbl of water are produced per annum. The conventional methods to handle ...

Get Price[...]

Silica Scaling Removal Process - Los Alamos National ...

Applications: Cooling tower systems Water treatment systems Water evaporation systems Potential mining applications (produced water) Industry applications for which silica scaling must be prevented Benefits: Reduces scaling in cooling towers by up to 50% Increases the number of cycles of concentration substantially Reduces the amount of anti-

Get Price[...]

Total Solution for Treatment of SAGD Produced Water

Produced Water Treatment with Ceramic Membrane Technology. Using Veolia's CeraMem® ceramic membrane technology, the ROSS System is a unique, fully scaleable, modularized water treatment for SAGD produced water. This modularized system provides removal of oil, solids, silica as well as softening of produced water.

Get Price[...]

Treatment of SAGD Produced Waters Without Lime Softening

The traditional produced water treatment plant installed to obtain the abovewater quality for a SAGD facility is shown in Figure 1. A HLS or WLS reduces the silica and in certain cases the TH concentrations.The afterfilters remove the sludge carryover from the lime softeningprocess.

Get Price[...]

TENORM: Oil and Gas Production Wastes | Radiation ...

Produced Waters. Produced waters are waters pumped from wells and separated from the oil and gas produced. The radioactivity levels in produced waters from unconventional drilling can be significant and the volumes are large. The ratio of produced water to oil in conventional well was approximately 10 barrels of produced water per barrel of oil.

Get Price[...]

Silica Removal From Steamflood-Produced Water: South Texas ...

This produced water, however, contains more than 400 mg/L SiO2, and will require treatment. Silica concentrations less than 50 mg/L are desired for scale control in the steamer tubes. Produced water from the steamflood was treated effectively with hydrated lime to produce an acceptable feedwater for steamflood operations.

Get Price[...]

Conversion of Oilfield Produced Water Into an Irrigation ...

A process has been developed for converting oilfield produced water into irrigation/drinking quality water. The process consists of air flotation, clarification, softening, filtration, reverse ...

Get Price[...]

Silica Sorption™ Process | SAGD Produced Water ... - Veolia

Veolia Water Technologies has developed process technology for cost-effective treatment of produced water containing high levels of silica and other scaling components. This technology, called The Silica Sorption Process, is designed specifically for produced water treatment.

Get Price[...]

RO Membrane Performance when Reclaiming Produced …

RO Membrane Performance when Reclaiming Produced Water from the Oil Extraction Process ... VP of Technology, Hydranautics, USA . Abstract . Produced water brought to the surface as part of the oil and gas extraction process is typically disposed of through deep well injection. ... silica, boron and TOC. The treated water was then reused for ...

Get Price[...]