Advanced Cross Flow Filtration System Integration
- Experience from Yesterday
- Solutions for Today
- Innovation for Tomorrow
What is Cross Flow Filtration?
Cross-flow filtration separates particles in a solution by passing the solution along the surface of a membrane. The liquid passes through the membrane because of a pressure differential across the membrane.
- The maiority of the feed flow travels tangentially across the surface of the filter, rather than into the filter.
- The principal advantage of this is that the filter cake (which can blind the filter) is substantially washed away during the filtration process.
- This process increases the length of time that a filter unit can be operational. It can be a continuous process, unlike batch-wise dead- end filtration.
The Encotech Patented Integration Process
- Maintaining a regulated pressure differential across the screen and creating a condition where particles prefer to flow past the screen rather than through it – resulting in even cleaner filtrate.
- An advanced filtration system that utilizes a pair of set points, one being flow rate and the other pressure differential, to achieve a high-capacity filtration rate with greatly reduced filtration system fouling.
- Helps prevent irreversible fouling causing a significant drop in particulate filtering and damage to the membrane.
- Longer Run Time, significantly less fouling of the filter membrane, reduced maintenance, and personnel costs.
- The Encotech patented integration includes a highly efficient automated process for cleaning.
- Often allows for a much smaller footprint than traditional Activated Carbon Tanks.
- Our patented technology can integrate with any filtration system
Filtering Integration Process
Dead-end filtration systems have been the primary filtering technology for decades and continue to be successfully employed for numerous applications, however they do present a number of limitations including:
- All the fluid in the water stream passes through the filter screen and all particles larger than the pore size of the filter screen are held at the surface of the screen.
- As trapped particles build up, a cake layer starts to form on the surface of the filter screen which increasingly decreases system efficiency until the filter cake is washed away with a backwash cycle, or until the filter screen is replaced.
- A significant amount of water must be utilized on a constant basis for the backwash cycles to keep the filtering system active.
- For filters such as bags and cartridges, the aforementioned fouling, results in higher maintenance, man hours, downtime, and consumables costs, not to mention more waste disposal (from discarded filters).
- Improved filter media lifespan
Filter Cake Buildup
Encotech offers custom filtration solutions by asking these key questions
Plant or Facility Characteristics:
- Type of produced water treatment system
- Equalization capacity – Lagoon Capacity
- Facility Operating hours – Days/Week
- Average flow rate (BPD)– Peak flow Rate (BPD/scheduled)
- Effluent discharged –Soil, disposal well, etc.
Wastewater Characteristics:
- Influent – O&G, TSS, TPH, TDS (mg/l)
- Effluent - O&G, TSS, TPH, TDS (mg/l)
- Discharge Requirements - O&G, TSS, TPH, TDS (mg/l)
Produced Wastewater Contaminants:
- Chloride-Arsenic-Boron-Cadmium-Cobalt-Chromium-Copper-Iron-Manganese-Mercury—Nickel-Lead-Selenium-Zinc (mg/l)
- Bacteria Count
- PH
Other Constituents of Concern (COC’s):
- Metals - List all present
- Organics - List all present
- Miscellaneous
- Particle Distribution - Include, description, or attach graph/chart
Desired Results/Benefit:
- Re-use of Recovered Water
- Residual Oil Recovery
- OPEX of existing system to high
- Regulatory Compliance
- Solids Removal
- Mineral / Contaminant / Chemical recovery
EF30L Large Particle Filtration Unit
The Encotech EF30L System combines self-cleaning filter technology with Encotech’s advanced controls and operation strategy. The System operates automatically, with a Programmable Logic Controller monitoring flow rates, pressure, and system outputs, ensuring ease of use and optimal system run time. Each System is capable of filtering particle sizes of 1cm3 down to 20 microns at a flow up to 500 gpm (12 bbl/min), depending on influent water quality.
The self-cleaning filter is designed to process a wide range of
difficult-to-treat feed waters. It is ideal as an alternative to
traditional filtration systems, with lower operating costs,
greater ease of operation and maintenance. It consistently tolerates high and highly variable Total Suspended Solids (TSS), up to 10,000 mg/L. Water recovery is typically greater than 99%, minimizing disposal volumes.
Each EF30L system is 103” long x 72” wide with fork tubes in
both directions and weighs approximately 5,000 lbs. Each skid is equipped with an overhead hoist for easy on-site access to the filter internals. The overall height of the hoist is 145”, but can be removed if other lifting mechanisms are available at installation.
| System | Micron | Max TSS | Suggested Flow (gpm)* |
|---|---|---|---|
|
Model 810 |
15 - 100 |
1,000+ |
Up to 100 |
|
Model 850 |
15 - 100
|
10,000+ |
Up to 100 |
|
Model 1000 |
15 - 100 |
15,000+ |
Up to 1,000 |
Advanced Micro Filtration
SELF ‐ CLEANING.
SMALL FOOTPRINT.
Sample Configuration
Micro Filtration Product Specifications
- High Quality Construction
- Stainless Steel Housing and Filter Elements
- Powder Coated Carbon Steel Skid
- Sch 80 PVC Piping
- Fully Automatic Operation
- Allen Bradley Components
- Touchscreen HMI
- Remote Telemetry Capability
- Built in Spill Containment
- 150# Flange Connections
| System | Micron | Suggested Flow (gpm) | Approx. Footprint |
|---|---|---|---|
|
EF30M1 |
0.5 ‐ 20 |
100 ‐ 300 |
6’ x 9’ |
|
EF30M2 |
0.5 ‐ 20 |
200 ‐ 600 |
6’ x 12’ |
|
EF40M3 |
0.5 ‐ 20 |
300 ‐ 900 |
6’ x 14’ |
|
EF50M4 |
0.5 ‐ 20 |
400 ‐ 1,200 |
6’ x 20’ |
EF30U Ultra‐Filtration
EF30U Ultrafiltration System
Results