Filternox^® offers innovative filtration solutions to maximize your gold recovery during ultrasonic cleaning.

Image 1.1. Filternox Pilot Filtration System Image

Cooling tower water filtration test with drum filter, hydrocyclone and Filternox^® FMS-MR model automatic self cleaning filters.

The Filternox Engineering team conducted a comprehensive Cooling Tower Water Filtration Test, evaluating the performance of a drum filter, a hydrocyclone, and Filternox^® FMS-V-MR model automatic self-cleaning filters. The primary objective of the test was to compare the pre-filtration capabilities of the hydrocyclone and the drum filter prior to the final filtration stage using the FMS-MR model filters.

A series of filtration tests were conducted at a leading steel production company over a 5-day period, commencing on December 25, 2023. During the 5-day period, the efficiency tests were conducted on Drum Filter and Hydrocyclone at different microns and flow rates. These tests were completed with Filternox^® Drum Filter and Filternox^® Hydrocyclone at flow rates of 10-15-20 m³/h.

Following extensive testing, the Technical Management of Steel-Iron Industry Company opted to implement the hydrocyclone application prior to the installation of automated Self-Cleaning Filternox Filters. In response to the client’s specifications, Filternox Engineering designed a hydrocyclone with a 200 m³/h capacity, which was subsequently manufactured entirely from duplex stainless steel.

Image 1.2.  View of completely duplex stainless steel hydrocylone

Image 1.3.

Image 1.4.

Image 1.5. Image of the SPT-SBV-MR Model Skid Mounted System Located After the Hydrocyclone

American brand filters were replaced with Filternox^® filters one year ago. After one year of working period, condition of the filter regarding maintenance, corrosion protection and filtration efficiency are perfect.

Old American brand filter. One year ago.	Filternox Duplex SS filter
Contaminant type	Corrosion protection

The Filternox Engineering and Testing Team was present at the Iron-Steel Factory facility from January 22nd for a duration of 1 day to conduct filtration tests. The inlet water of the sand filter was tested with the Filternox^® FMS-V-MR Model filter with a 40-micron rating, and the outlet water was tested with the Filternox^® FMS-V-MR Model NTU Terminator filter. The data obtained from the measurements has been documented and reported.

1- System Definition

Picture 1.1. Filtration System Image

2- Filtration Test Measurement Results

2.1- Sand Filter Inlet Water –  40 micron Filternox^® FMS-V-MR Model Filter

Picture 2.1. Filternox^® 40 Micron FMS-V-MR Model Filter Sample Measurement Results

2.2- Sand Filter Outlet Water-Activated Carbon Inlet Water – Filternox^® NTU Terminator FMS-V-MR Model Filter

Picture 2.2. Filternox^® NTU Terminator FMS-V-MR Model Filter Sample Measurement Results

If the water sample’s TSS value is under 0 ppm , an underrange result is obtained.

2 Filternox^® filters controlled by a PLC Control Panel.

1 Filternox^® SPT-SBV-MR model filter controlled by a PLC Control Panel.

Filternox^® internationally patented dual effect self cleaning SPT-SBV-MR model filter for Golf course irrigation water filtration in Romania.

4 Filternox^® SPT-SBV-MR model filters are controlled by 1 PLC Control Panel.

Filternox^® International Patented Dual Effect Self Cleaning Filters provide an advanced solution for Landscape Irrigation Filtration in Dubai, surpassing the capabilities of replaced filters. Experience uninterrupted, ultimate performance in treated sewage effluent filtration with Filternox^®.

8 units of Filternox^® PFH-MR model filters are controlled by 1 PLC Control Panel.

The photo was taken just a week ago, and it’s remarkable to see how the Filternox^® Automatic Self-Cleaning Filters have been consistently operating flawlessly since the day they were first put into operation. Even after 11 years, they continue to perform at the same exceptional level as they did on the very first day.

During the Factory Acceptance Test (FAT) conducted within Filternox^®, general inspections of the filter, hydrostatic pressure tests and function tests were carried out in detail in collaboration with the end user. This procedure once again proves the quality and assurance of Filternox^®.

2 Filternox^® PFH 112610 model filters are controlled by 1 PLC Control Panel.

Our patented double-effect cleaning system delivers top-notch performance with a max design pressure of 16 bar, 60°C design temperature, and 200-micron filtration. Crafted from AISI 304L and AISI 316L stainless steel, it handles 250m³/h flow with a single unit. The Brush and Vacuum Nozzle cleaning mechanism reduces operational costs.

We’re thrilled to announce the successful start-up of our customer’s “Process Water Filtration” and “Cooling Water Filtration for Exchanger Protection” systems thanks to our patented double-effect cleaning system. With flow rates of 150 and 800 m³ per hour, and filtration levels at 100 and 250 microns, we’re redefining efficiency and excellence in water filtration.

The pump suction line filtration application serves not only to safeguard our pumps and equipment but is also crucial in maintaining their peak performance. Designed to operate flawlessly at 90°C with a 10mm filtration degree, our Filternox^® filters have been tailored to meet the unique needs of our valued customers in the pulp and paper industry.

These specially designed Filternox^® filters are made of Duplex stainless steel for sea water, cooling tower application. These filters are also fitted with zinc anode protection.

Filternox^® patented filtration system produced for surface water filtration to protect UF.

Filternox Serial Connected Skid Mounted System

Filternox^® filtration system produced for aquaculture application. The filter has been working since 2016 to protect UV system.

Filternox^® patented filtration system produced for filtration of open pond water for irrigation of 15,000 pomegranate, 220,000 walnut and 20,000 cherry trees.

Filternox^® patented filtration system produced for leachate water filtration for UV protection. The filters have HMI touch screen & e-remote RS communication functionality in addition to 7 dry contacts.

Filternox^® automatic self-cleaning filter is going to be installed on municipal main line and it has a special screen, capable of filtration down to 5 micron which is able to reduce TSS and NTU in the water.

Filternox^® patented filtration system produced for river water filtration. The filters have HMI touch screen & e-remote RS communication functionality in addition to 7 dry contacts.

Filternox^® patented filtration system produced for recycling water. The filtration rate is down to 1 micron to protect the process. The filters are designed to be controlled by one control panel and special safety for drainage line.

Filternox^® patented double cleaning mechanism filtration system produced for the irrigation of the golf course in Incirlik US Air Base in Adana, Turkey.

Filternox^® filtration system produced to remove suspended solids & turbidity of the cooling water. NTU Terminator FMSL-V 110102-MR has PLC control panel & fully automatic filtration system with e-remote RS communication functionality.

Filternox^® NTU Terminator filtration system produced and commissioned for the facility of our client, one of the leading companies in Turkey and Europe in the field of cement production, located in Kocaeli.

Filternox^® filtration system, produced and commissioned to filter sea water for one of the leading hotel companies in the world.

The filters in use were replaced with advanced tech Filternox SPT-WBV-MR filters for increased efficiency and reliability.

Phase 1 – Manufacturing, Testing & Delivery

The special design filtration system was produced for the client, which is one of the world’s leading companies in the mining industry. The filtration system is used in our client’s facility in Izmir and is being used successfully for more than a year.

One of the world’s largest paper factories in Aydın Turkey is fully equipped with the latest technology machinery and equipment including high capacity and fully automatic Filternox^® Filtration Systems.

We did supply all the filters for:

– Pump suction line filtration

– Oil cooling water filtration

– Nozzle protection for fan nozzles

– 25 micron nozzle protection

– Filtration for pulp preparation systems

– Others

The second NTU Terminator filtration test, held at the end of 2020, was carried out at a cooling tower system at our customer’s facility, one of the leading companies in the polyester industry. Filtration tests were performed under a pressure of 2.6 bar at a flow rate of 3 m³ / h, using serially connected Filternox^® NTU Terminator filters.

1. Flow Chart

1.1.  Filtration flow chart of tower pool filtration at cooling tower-X

1.2.  Filtration flow chart of water circulated in the IBC tank at cooling tower-X

2. Sample and System Images

2.1 Filtration Tests Performed at the cooling tower-X

Pic 1.1. Filternox pilot filtration system	Pic 1.2. Left to right – Filter-1 inlet, Filter-1 outlet, Filter-2 outlet water samples

Pic 1.3. Filter-1 and Filter-2 drainage water samples

2.2 Filtration tests performed from the circulation of 500L water taken from the bottom of the cooling tower X into an IBC tank

Pic 2.1. Circulation starts at 11:20h (at minute zero)	Pic 2.2. Circulation at minute 20	Pic 2.3. Circulation at minute 35
Pic 2.4. Circulation at minute 43	Pic 2.5. Circulation at minute 60

3. Conclusion and Evaluation

In the filtration tests performed with the filtration of Filternox^® NTU Terminator filters;

Cooling tower X:

• An average of 40% suspended solids removal was achieved in one stage and 58% in two stages.
• Turbidity removal was achieved on average 48% in one stage and 65% in two stages.

Circulation of cooling tower X water, taken into 500L IBC tank:

• As a result of 1 hour of circulation of the water with an initial TSS value of 134 ppm and initial turbidity value of 49 NTU, it was observed that the TSS decreased to 17 ppm and turbidity dropped to 7.22 NTU.

As a result of the filtration to be performed in the cooling line with Filternox^® NTU Terminator filtration system;

• Lifetime of the tower filling will increase
• The amount of chemicals used in the system will be reduced
• The amount of tower blowdown water will be reduced
• Cooling efficiency will be increased
• Unnecessary stops / work interruptions will be prevented
• Operation, maintenance and energy costs will be reduced
• The cooling line will be protected from particles

Cooling efficiency will increase substantially as a result of all the above mentioned benefits.

Filternox^® engineering and test team conducted filtration tests at a local food company’s refinery clean tower point in October 2020. Tests were carried out with serially connected Filternox^® NTU Terminator filters at flow rates of 2, 3 and 5 m³/h  and under 2, 2.6 and 2.7 bar pressure.

Flow Chart

Sample and System Images

Pic 1. Filternox pilot filtration system	Pic 2. Left to right – Filter-1 inlet, Filter-1 outlet, Filter-2 outlet water samples

Pic 3. Filter-1 and Filter-2 drainage water samples	Pic 4. Filter-1 drainage tank

Conclusion and Evaluation

In the filtration tests performed with the filtration of Filternox^® NTU Terminator filters;

At Refinery Clean Tower Point:

• TSS removal was achieved on average of 47% in one stage and 67% in two stages.
• Turbidity removal was achieved on average 56% in one stage and 73% in two stages.

As a result of the filtration to be performed in the cooling line with Filternox^® NTU Terminator filtration system;

• Lifetime of the tower filling will increase
• The amount of chemicals used in the system will be reduced
• The amount of tower blowdown water will be reduced
• Cooling efficiency will be increased
• Unnecessary stops / work interruptions will be prevented
• Operation, maintenance and energy costs will be reduced
• The cooling line will be protected from particles

With all of these mentioned benefits, cooling efficiency is increased incredibly.

Even during this pandemic period, we are capable of making various models of filters up to 4500 pieces in different sizes and filtration levels.
1 to 3000 micron screens and different types of material stock available in our inventory.

As Filternox team, we are always ready with all our resources for you and we welcome your orders for all kinds of filtration problems!

Machinery Cooling Water Filtration System Commissioned

Total of 8 filters have been commissioned last week at our customer’s facility. This is one of the most important producers in the Turkish iron & steel industry.

If you need to improve the outlet quality of your treatment plant, Filternox^® can help you with the NTU Terminator deep filtration solution.

More specifically, Filternox^® NTU Terminator can help improving the water quality at long-lasting wastewater treatment plants that have become overloaded or undersized because of population growth and old technology aeration solutions.

Please contact us for testing, renting and sales options.

Sea water deep filtration with Filternox NTU Terminator to improve the inlet quality of UF & RO

We have performed another test with Filternox^® NTU Terminator at a customer’s facilities, for one week. They extract seawater where occasionally there is heavy traffic of ships. The test was however carried out during a period with low ship traffic.

Filter 1 with 5 micron filtration level and Filter 2 with 2 micron filtration level were placed before UF and RO to improve working conditions and extend the life of UF and RO systems plus minimising the use of chemicals.

Test Flow Chart 1

Test Flow Chart 2

Filternox® pilot filtration system	Water from main filter inlet line and filters 1 and 2 outlet water

Filter 1 Drainage Water	Filter 1 Drainage Tank

As a result of the filtration tests performed, it was observed that inlet and outlet waters appeared relatively clean. The filters performed very efficient deep filtration and the drainage waters from both were significantly dirty, with a high level of turbidity.

Filternox® pilot filtration system	Water from main filter inlet line and filters 1 and 2 outlet water

Filter 1 and Filter 2 drainage water	Filter 2 drainage water sample image of particles hold

At the outlet of the sea water treatment, turbidity removing efficiency Filternox filters was 41% at the first stage and 68% at the second stage, on average. On the other hand, TSS removing efficiency in a single stage was over 70%.

Using Filternox^® NTU Terminator filtration system as pre-filtration before a UF system, we can conclude:

• The system can filter out peak or high dirt loads that may occur, especially during periods of heavy sea traffic, before they reach UF and RO systems and keep them protected.
• Performance of UF systems and service lifespan of UF membranes will increase.
• Thanks to the increase in UF system performance, the dirt load on the RO membranes will decrease and the service life of the RO membranes will also increase.
• There will be no need to use the cartridge filters after the UF system, before the RO system; or if used, the cartridge life will be much longer.
• Reduction in the amount of chemicals used in the system.
• Decrease in maintenance time and expenses.
• Decrease in the amount of wastewater discharged for the backwashing of UF and RO systems.

Keep your UF and RO systems safe and healthy. Save water and our world!

Another filtration test has been performed with process well-water at a food company.

After 1 hour of filtration, it was observed that the drainage sample was dark in color and contained a large amount of particles.

Filternox® NTU Terminator is capable of trapping extremely small particles, even smaller than 1 micron.

At the end of this filtration test, Filternox® NTU Terminator decreased the TSS level from 20 ppm to 8 ppm and turbidity from 25 NTU to 3.29 NTU.

Last week we carried out some testing at our customer’s facilities. They are one of Turkey’s leading iron and steel factories. Our customer was quite pleased with the results.​

Filtration test was carried out with Filternox^® NTU Terminator filtration system.

Filternox pilot filtration system	Water from main filter inlet line and filter outlet water

Filter Drainage Tank	Contaminants retained in the filter drainage tank	Particles settling in the filter drain sample

Using water taken from the cooling water delivery line, the Filternox^® filtration system achieved a very high efficiency by removing 64.3% of TSS and reducing turbidity by 75.2% on average.

Drainage Water	Filter Drainage Tank

As a result of this test, we conclude that all the water can be cleaned to an exceptionally low degree of pollution in a very short period of time by using the Filternox^® NTU Terminator filters. We recommend our customers to use them to minimize blockages in the system, save make-up water and reduce unnecessary maintenance work and energy losses.

NTU Terminator model has just been engaged with Chiller Cooling Water Filtration.

According to the analysis results,

• TSS for drainage water is 91 mg/l, although inlet and outlet water is under range.
• Turbidity for drainage water is 70 ntu within 90 minutes, whilst the turbidity for inlet water is 1.51 ntu.

Video Direct link

Three days after the system was commissioned, the customer wanted to keep the pollutants accumulated in the line by chemical cleaning and remove them from the system. For this reason, a filter bag was placed in the filter drainage outlet at the same time with the chemical cleaning.	Within about 3 hours, as can be seen clearly in the pictures, the high amount of pollutants were removed from the drainage through the automatic backwashing of the filter and they were kept in the bag filter. During this cleaning, the pollution was removed from the system with the successive backwashing of the filter and the customer’s system has become fully functional as it should be.

Complete EX-PROOF Design & Manufacture Filternox^® Filter for  Factory

Filternox^® filter, which was designed as Ex-Proof, has just been manufactured and shipped to the  factory.

In general, prominent problems in well water filtration are grouped under three main headings:

1. With the first start of the pump, heavy pollution comes in and sudden blockage occurs in the filter.
2. Turbidity in the water.
3. Iron and manganese in the water.

The solution to the first of these problems is challenging as it requires a special filter with backwash system. Usually a tank is installed after the well. This increases investment cost and adds the need to be cleaned periodically.

Filternox^®, has developed solutions to these three problems mentioned above without the need for adding a balance tank.

With the first activation of the pump, all the sand, silt and other organic or inorganic particles accumulated in the well can suddenly enter the filter, cover the surface of the filter screen and block it. In this case, Filternox^® patented double cleaning filter is the definite solution. The double cleaning filter discharges first all the coarse and cleanable particles, swept with a brush, via its drainage line. Immediately after this process, the remaining particles left on the screen surface are removed by the vacuum suction system.

If there is turbidity in the water and this is a problem, then Filternox^® NTU Terminator takes over the solution. NTU Terminator incorporates a deep filtration screen specially developed by Filternox R&D division and significantly eliminates turbidity thanks to the adsorption property of this screen.

Thirdly, if there is iron and manganese in the water, since they are dissolved, first, chlorine is added to oxidize these metals to form rust particles. Filternox^® NTU Terminator retains these particles within its special screen.

Finally the hardest issue: what should be done if the first and second problems coexist?

Our patented double backwash system Filternox^® filter can also be manufactured as NTU Terminator as a special design, to suit the specific needs of your facility or industry.  This way, very poor-quality water coming from the well is rid from particles and turbidity.

> Well water applications

This filtration system was produced and delivered as a skid system by Filternox^® for City Hospital in Istanbul in 2018. It has been successfully commissioned in May 2020 and is now fully operational. The skid system comprises a pump and all other auxiliary equipment including a PLC control panel.

Filternox^® model NTU Terminator FMSL-V-MR was shipped to a customer last week for installation and commissioning. The results were simply astonishing! Filternox engineers repeated the tests and could only confirm the mind boggling findings.

The table below shows the inlet high levels of Suspended Solids and Turbidity of process water. After filtration, these values have plummeted to levels typical for drinking water.

30 Pieces of Filternox^® filters are ready for delivery. The remaining 76 filters will be ready for shipment by the beginning of next week.

Filternox remains at your service!

12 May

Production and testing of the remaining 76 filters out of 106 from last week were successfully completed this week and will be packed today for shipment.

This custom-made Filternox^® Special model has been designed to have inline connection. It was specially designed and produced for a manufacturer company in the glass industry.

After the design phase, as published on Nov 4, 2019, manufacturing and testing phase of the project have been completed on Dec 19, 2019. Commissioning is completed on Mar 08, 2021 and the filtration system is working smoothly.

Phase 3 – Commissioning

Phase 2 – Manufacturing, Testing & Delivery

Dec 2019

Phase 1 – Design

Nov 2019

Patented Filternox filtration applications for landscape irrigation increasingly extending in U.A.E.

At Eskisehir 3rd Regional Directorate Irrigation Project, a large fish reached one of Filternox^® automatic backwashing filters that have been in operation since April 2017. This happened in spite of the coarse intake strainer where water is abstracted from the nearby dam. The automatic backwashing system of our filter has discharged the fish through the 2″(DN50) diameter drainage. The purpose of our filters is to remove such large contaminants from the system by means of our internationally patented dual cleaning device (brushes & vacuum nozzles). Otherwise, this kind of large contaminants may remain in the filter, eventually causing mechanical damage. Moreover, they may reach the irrigation system and damage hydrant, counter and other elements.

Filternox^® The best patented filter for all surface water irrigation!

One of the largest Filternox^® filters for landscaping application is active now with 30.000 m³/day in Middle East.

Visit us at IFAT Eurasia: Hall 11 | D-4

March 28-30, 2019

IFM – Istanbul Expo Center

Çobançeşme Kavşağı, Yeşilköy, Bakırköy, Istanbul, Turkey

Aqua Nederland Vakbeurs 2019, Gorinchem, Holland.

Stand: H. 122

19 – 22 March

Another special large filter production and tests were completed successfully and it was shipped out to Far-East.

Filternox has shipped 6 units of Filternox Self Cleaning Filters designed as per ASME Sec VIII, Div.1 code with U-Stamp to Middle East.

One of our largest patented filters is in operation in Middle-East.

Before shipment

Installation

We are in SIGA, Madrid.

Download as PDF

Filternox^® patented technology SPT-WBV-MR model filters have been supplied for Veolia for the project of raw well water filtration in a Water Treatment Plant, Serbia. The filters have been provided with custom design according to project requirement with complete stainless steel structure, with its PLC electric control panel and electric actuated outlet valves.

FILTERNOX^® IN SOLUTION MINING

The Solution Mining Research Institute (SMRI) defines solution mining as “mining of underground, water-soluble minerals, usually using one or more drilled wells to dissolve the minerals with water”. Minerals such as salt, potash, trona, and magnesium salts may be produced by pumping saturated fluid from underground caverns. The caverns are created by pumping out the saturated ‘brine’ while pumping in fresh water as a controlled production process. The minerals are then recovered from the saturated fluid by recrystallization.
Filternox^® played a big role in the second biggest trona reserve in the world. Trona reserves are meant to be dissolved with hot water injection by production wells, which then forms trona solution (brine).  This mining facility provides the trona solution (brine) which is the raw material of the process plant.

PROCESS

The trona (sodium sesquicarbonate Na₂CO₃ NaHCO₃2H₂O) is mined by solution mining, a safe and environmentally friendly mining technique. The trona solution, i.e., brine which is subjected to monohydrate process in the production lines of process unit is converted into Dense Soda Ash and Sodium Bicarbonate products, and 2.5 million tons of Dense Soda Ash and 200,000 tons of Sodium Bicarbonate is produced annually.

DENSE SODA ASH (SODIUM CARBONATE)

Dense soda ash produced from trona at the plant is used in a wide range of industrial areas such as glass industry, paper production, and detergent production. Sodium Carbonate is a basic salt. Its aqueous solution is clear and colourless, and its chemical formula is Na₂CO₃.

SOLUTION TREATMENT

In the solution pretreatment unit, suspended solids are removed from brine, which come from the mining wells. The suspended solids are removed with Filternox^® filters. 16 units of Filternox^® filters remove particles down to 25 micron. After the whole filtration process, the filtrated brine is stored in the raw brine tanks.

Automatic Hydrocyclone

REPSOL^® is  a registered trademark of REPSOL, S.A.