Vista is a demonstrated leader in engineering services for water management. We’ve implemented systems to reduce water use by enhancing water recycling while ensuring that safety and costs are kept at the forefront.
The active facilities engineered by Vista currently filter over 1.3 billion cubic feet of water per year.
Vista has developed utility water, freshwater, and produced water management systems to meet the regulatory demands and water availability for multiple jurisdictions. We are fully versed in many regulatory environments and have successfully adapted to the rapidly changing requirements.
Vista has a long history of engineering some of the most successful processing facilities in the western Canadian energy sector. Our experience includes designing specialized processes to maximize a facility’s ability to reuse produced water.
Reusing produced water is essential to limiting environmental impacts, lowering operating costs, and gaining regulatory approval, especially for commercial facilities.
Vista helps clients analyze their water to select proven technologies and implement a cost-effective, fit-for-purpose solution.
In processing facilities, common contaminants such as calcium and magnesium can combine with silica to form metallic silicates. These precipitate and stick to facility piping, forming a glass-like insulating barrier on the walls.
The insulating barrier inhibits heat transfer, leading to poor performance, dangerous working conditions, equipment damage and ultimately resulting in failures requiring extensive downtime and repair costs.
Filtration is a critical component of many treatment systems. Filters are used to remove solids, liquids, or other contaminants from fluids within a process stream.
The use of inappropriate technologies can lead to inefficient operations, high capital costs, and prohibitively expensive operational expenditures. Vista’s experts leverage our extensive experience and industry contacts to carefully select the best technology to meet the applications of our clients.
Filters have been in use since ancient times, however, the criticality of water treatment in the last 200 years has led to an ever-increasing need for filter technologies designed to target specific contaminants.
Vista is well versed in a multitude of filtration technologies and has designed multiple utility and water treatment systems, which target the following contaminants:
Through extensive consultation with vendors and our clients, Vista has designed a novel water reuse system in which blowdown from a once-through steam generator (OTSG) is used as the feedstock for a secondary OTSG.
After the successful implementation of this high-value design, steam production was drastically increased while wastewater (boiler blowdown) was reduced by 75%.
This system resulted in a substantial net reduction of water usage by the facility.
Vista’s thorough understanding of wastewater chemistry has led to the successful implementation of wastewater reuse systems.
In these detailed systems, recycled water and wastewater chemistry are objectively reviewed and decisions are based upon the specific defined components requiring treatment.
In some applications, Vista has identified locations where the blending of wastewater and recycled water meets the downstream requirements. This has resulted in a reduction of water treatment equipment.
The reduced water treatment equipment significantly lowers capital cost and operating costs for the facility.
Vista has extensive experience in the operation of filters and ion exchange equipment.
By leveraging our knowledge with different equipment suppliers and operating facilities, we successfully revised filtration and ion exchange regeneration sequences, which limited the quantity of wastewater generated.
In addition, Vista has been involved in the successful design of a novel chemical reuse program, wherein caustic from a weak acid cation (WAC) exchanger is partially reused for several sequential regenerations.
This design led to a reduction in operating costs by decreasing the total chemical and water consumption requirements for ion exchange regeneration.
In systems where RLD is required, Vista has investigated the implementation of mechanical vapor compression evaporators, crystallizers, and thermosyphon reboilers.
Implementation of these systems enabled the plant to meet the stringent regulatory demands of the jurisdiction.
Vista has implemented a wide variety of water treatment technologies as part of our water management systems.
Vista has expertise treating water systems with oil and grease, silica, permanent & temporary hardness, suspended solids, iron, multivalent cations, oxygen, and microbiological contaminants.
Vista was contracted to investigate existing and new technologies to reduce the wastewater volumes at a water treatment and steam generation plant.
A changing regulatory environment and lack of access to a sufficiently sized disposal system were causing the client to explore new water reduction possibilities.
Vista investigated a wide variety of RLD technologies, as well as zero liquid discharge (ZLD) technologies, and formulated 21 process arrangements to find the most cost-effective option.
Our work included:
Clients have trusted Vista with their technology selection for major, industrial water management facilities.
These projects considered site-specific water availability and environmental and disposal conditions while ensuring the plant met the area’s regulatory requirements. The technology was recommended based on technical merit, as well as the capital and operating cost considerations.
Many of Vista’s industry-leading cost innovations were considered, including piping and equipment modularization, plot plan optimizations, and our A data-centric outlook is a core concept in digital project execution architecture where data is viewed as the most important and perpetual … approach to engineering.
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Project Experience Overview
Produced Water Treatment
Our experience includes designing specialized processes to maximize a facility’s ability to reuse produced water. Reusing produced water is essential to limiting environmental impacts, lowering operational costs, and gaining regulatory approval, especially for commercial facilities.
Vista helps clients analyze their water to select one or more proven technologies and implement a cost-effective, fit-for-purpose solution. Some of Vista’s capabilities include the following techniques and technologies.
Vessels containing resin remove hardness ions (calcium and magnesium) as well as other multivalent ions.
Application: hardness removal, multivalent ion removal
Removes particulate matter in water streams and in the final stages of hydrocarbon removal.
Application: hydrocarbon removal, iron removal, suspended solids removal
Gas bubbles introduced into a water stream facilitate the flotation of hydrocarbon within the unit. Commonly used as a secondary oil removal process.
Application: hydrocarbon removal
Removes bulk suspended solids from a water stream, resulting in sludge and clean centrate stream.
Application: suspended solids removal
Removes large volumes of solids or particulate matter from a water stream.
Application: particulate removal
Created using a combination of chemicals, a lime sludge bed reduces and removes a variety of contaminants from inlet water.
Application: silica removal, bulk hardness removal, alkalinity reduction
A carefully designed gravity separation system ensures maximum effectiveness of installed residence capacities.
Application: hydrocarbon removal
Uses thermal or mechanical energy to create a distilled water stream available for reuse.
Application: total dissolved solids removal
Strips dissolved gas from a water stream, a critical step in meeting water quality requirements for downstream equipment.
Application: dissolved gas removal
Carefully prepared and measured chemicals injected upstream facilitate other separation methods required for the success of downstream processes.
Application: oxygen control, precipitation (e.g. oxidation of iron for filtration), chemical preparation for use (e.g. flocculants)
Our unique truth-based industrial engineering execution model facilitates:
By structuring data in a single-source-of-truth (SSOT) environment, we simplify the digital transformation of your asset and help you make more informed decisions. Learn more about our system integration services.Learn More