Dynatec News

Textile biological treatment system

A textile biological treatment system needed to upgrade the performance of their existing wastewater treatment system. They wanted to reuse the majority of their wastewater.  This created the need for a robust system that will produce purified water for reuse.  Dynatec was selected to provide the ultrafiltration (UF) components of the MBR.  Out-of-basin membranes were the ideal choice.

Membranes consistently produce high-quality effluent.  The presence of pigments were problematic for other alternatives.  The Dynatec MBR UF system was pilot tested and demonstrated consistent performance providing the high-quality permeate required.

The MBR effluent, now free of suspended solids and most of the organic load, is then processed through a RO system for further purification.  The Dynatec MBR system, using tubular out-of-basin membranes, permits operation at high MLSS and produces lower chemical oxygen demand (COD) results thereby reducing the organic fouling at the downstream RO system. 

The system capacity more than doubled employing existing aeration tanks with an upgrade to the aeration.  Qualitative treatment results also improved.  The project cost was less than the cost to expand the plant as a conventional biological plant with the addition of another bioreactor and clarifier.

Textile biological treatment system

Textile wastewater treatment systems have been provided by Dynatec Systems for numerous  facilities. The treatment method chosen depends greatly on the specific characteristics of a plant’s wastewater and the discharge requirements or wastewater reuse applications within the plant.

Textile Biological Treatment Systems Technology Benefits

• Consistent high-quality water
• Easy maintenance avoids labor costs and regulations
• Minimal operator intervention required
• Reduced sludge disposal costs
• Brine recovery saves on processing cost
• Simple mechanical process

Textile Wastewater Treatment Systems Solutions

• Separation of specific components in the wastewater
• Ultrafiltration (UF) for pigment separation
• Ultrafiltration (UF) for size separation and reuse
• Membrane Bioreactor (MBR) for wastewater treatment and discharge
• Membrane Bioreactor (MBR) and Reverse Osmosis (RO) for wastewater purification and reuse

Contaminants Removed:

• Heavy metals
• Suspended solids
• Biochemical Oxygen Demand (BOD)
• Phosphorous
• Colloidal material
• Pigments
• Chemical Oxygen Demand (COD)
• Inorganic solids separation

Ultrafiltration offers the following advantages over conventional separation:

• No chemical required
• Very little labor required
• Simple mechanical process
• Less sludge
• Ability to concentrate the retentate for beneficial use
• Less space required
• Overall lower operating costs

Tubular Configuration:

• Higher permeate rate
• Lower rates of fouling
• Higher concentration of retentate
• Easier to clean
• Longer membrane life
• Low operating cost

For more information on wastewater reuse, please contact us today.

https://www.dynatecsystems.com/technologies/membrane-technologies/ultrafiltration-systems/

Ultrafilter for Membrane Bioreactor

Existing biological system converted

The Dynatec out-of-basin membrane configuration provided for optimization of both biological and membrane systems.

Contaminants Removed

• Biochemical Oxygen Demand (BOD)
• Total Suspended Solids (TSS)
• Chemical Oxygen Demand (COD)
• Phosphorous
• Ammonia
• Fat, Oil and Grease (FOG)

For more information about an existing biological system converted to a membrane bioreactor, please contact us today.

https://www.dynatecsystems.com/technologies/membrane-bioreactors/mbr-conversion-r…pgrade-solutions/ ‎

Contract Service – DBOOM

A contract service – (DBOOM) system owned and operated by Dynatec has now been in operation for 28 years. The system was provided to the customer, a manufacturer of bearings, on a Design, Build, Own, Operate, Maintain (DBOOM) basis. Dynatec designed and installed the system 28 years ago and has been operating and maintaining it since. The customer pays Dynatec a few cents per gallon of wastewater treated. The DBOOM arrangement has been an attractive option to several customers over the years. It allows them to achieve the wastewater treatment goals without a capital expenditure and without operating and maintenance responsibility. Another Dynatec system has been successfully operating on a DBOOM basis at a large automotive company’s stamping plant for 20 years.

Design-Build-Own-Operate-Maintain complete wastewater treatment system solutions offers the assurance of a well-run operation with little risk and no capital required. 

Complete Wastewater Solutions

Since 1978, Dynatec has supplied complete wastewater treatment systems for industrial applications and in that time, we have successfully installed over a thousand systems. Since 1993, we have provided DBOOM solutions that are completely designed, built, owned, operated and maintained by Dynatec.

Contract Service (DBOOM) benefits:

Little Risk

Get the assurance you need for a well-run and well-operated system. Offering minimal risk with great convenience to the customer. Dynatec owns, operates and maintains the equipment, supplying complete wastewater treatment systems on a contract basis. Each contract is tailored to the owner’s unique requirements.

Cost-effective

Our contract service agreements offer a reliable means of both reducing and fixing costs.  This allows our clients to accurately predict operating costs and provide the option for purchase of the system at the end of the contract term.
Compensation, in the form of monthly payments, is based on the amount of water treated, purified and discharged to sewer or reused. The per-gallon charge fixes the total cost for processing the waste stream.

Minimal Liability

With minimal operator attention required, a locally-employed Dynatec technician will attend to the system on a daily basis to check for proper functioning, the need for service or maintenance and water quality.

Your Dynatec technician covers all attention, care and maintenance required by the system to ensure compliance with sewer discharge standards. Contaminants removed are disposed of through an approved and licensed disposal firm.

Contract Service – DBOOM project begins the same way all of our projects start. First, we obtain thorough information that helps us characterize your waste stream and the treatment requirements. Once treatability work is performed, we develop a system design and proposal. At that time, the terms of the contract can be negotiated. Dynatec can confirm the project requirements, and implement on-site pilot testing, when necessary.

Contract Service – (DBOOM)

• No risk
• No capital employed in non-performing assets
• No need to operate or maintain equipment
• Assurance of a well-run and well-operated system
• Significant cost savings
• If waste is presently being hauled to a commercial waste treatment facility, this program will help to considerably reduce costs.
• Costs fixed for the term of the contract
• Lower environmental liability

For more information about Dynatec Systems’ (DBOOM) Design-Build-Own-Operate-Maintain services, please contact us to discuss your opportunity.

https://www.dynatecsystems.com/engineered-installed-wastewater-treatment-and-recovery-plants/design-build-own-operate-and-maintain-dboom-solutions/

Wastewater Reuse – Phosphate Mine

Mining operations can produce a large amount of wastewater in the form of spent liquor that requires treatment. The wastewater stream has a high concentration of contaminants that need to be separated from the water before it can be discharged or reused. Dynatec has provided a system to a phosphate mining operation that treats five million gallons of wastewater per day. The customer was motivated to put a treatment/reuse system to separate a portion of the compounds in the wastewater for reuse. Also, the desired water quality for discharge met requirements for reuse of several water users in the plant.

Dynatec was asked to conduct a pilot to study the feasibility of using membrane technology to purify the wastewater so that it could be reused in mining operations at the site. After several months of piloting, Dynatec was commissioned to supply five ultrafiltration skids, each capable of producing one million gallons per day of permeate. The ultrafilters were a part of the reuse system that also includes nanofiltration and reverse osmosis to produce water and product for reuse.

Due to the highly saturated wastewater stream, the pH of the wastewater was maintained at 1.8 s.u. to keep specific contaminants from precipitating in the membrane systems. The ultrafilters have successfully operated at this pH for over 10 years and their life span has not been negatively impacted by the nature of the wastewater.

The high strength spent liquor is processed through a series of membranes from UF to NF to RO. The customer has found reuse applications for reject and permeate from the membrane systems. The final system has alleviated concerns of future environmental infractions and has saved the customer money.

Contact Dynatec Systems to discuss your wastewater solution.

https://www.dynatecsystems.com/technologies/recovery-and-reuse/

Ultrafiltration Membrane System

Automotive connectors manufacturer of quick connectors for transfer of engine oil cooling fluids was in need of a wastewater treatment system to address oil and grease and heavy metal contaminants in their discharge. Based on understanding of the waste stream and ability to provide a cost effective solution, Dynatec was selected to provide a system that would produce effluent that reliably met the sewer discharge requirements.  By using a combination of free oil separation and an ultrafiltration membrane system, in addition to removing all of the suspended solids, the Dynatec supplied system consistently provides effluent meeting discharge requirements.

Automotive Connectors Manufacturer Contaminants removed:

• Biochemical oxygen demand (BOD)
• Oil/grease
• Suspended solids
• Chemical oxygen demand (COD)
• Zinc
• Chrome

Dynatec Systems industry-leading tubular ultrafiltration (UF) system is used to treat a broad range of industrial wastewater by separating insoluble components from waste streams. As a cost effective and simple solution for separating insoluble components and colloidal contaminants from a waste stream, wastewater UF offers significant advantages over conventional separation. It is a useful process that does not require chemicals or much space to separate insoluble contaminants.

UF is a pressure-driven process that removes the following from wastewater and other solutions:

• Emulsified oils
• Metal hydroxides
• Colloids
• Emulsions
• Dispersed material
• Suspended solids
• Other large molecular-weight materials

Ultrafiltration systems are also capable of concentrating:

• Bacteria
• Some proteins
• Some dyes
• Colloidal or emulsified components

Ultrafiltration systems excels at the clarification of solutions containing:

• Suspended solids
• Bacteria
• High concentrations of macromolecules including:
  • Oil and water
  • Fruit juice
  • Milk
  • Whey
  • Electro-coat paints
  • Pharmaceuticals
  • Poly-vinyl alcohol and indigo
  • Potable water
  • Tertiary wastewater

Ultrafiltration offers the following advantages over conventional separation:

• No chemical required
• Very little labor required
• Simple mechanical process
• Less sludge
• Ability to concentrate the retentate for beneficial use
• Less space required
• Overall lower operating costs

Tubular Configuration:

• Higher permeate rate
• Lower rates of fouling
• Higher concentration of retentate
• Easier to clean
• Longer membrane life
• Low operating cost

For more information on wastewater treatment systems to address oil and grease and heavy metal contaminants, please contact us today.

https://www.dynatecsystems.com/industries/manufacturing-wastewater-treatment/industrial-oily-wastewater-treatment/

Automotive Parts Manufacturer

An automotive parts manufacturer was in need of a system to process oily waste water. An ultrafiltration (UF) system was selected based upon its ability to consistently meet the discharge requirements without chemicals and limited operator involvement. This ultrafiltration (UF) system removes oil and reduces zinc in compliance with discharge requirements.

Ultrafiltration excels at the clarification of solutions containing suspended solids, bacteria, and high concentrations of macromolecules, including oil this making this an excellent solution to this problem.

Automotive Parts Manufacturer Contaminants Removed

• Biochemical Oxygen Demand (BOD)
• Oil and Grease (O&G)
• Suspended solids
• Zinc
• Lead

Dynatec Systems industry-leading tubular ultrafiltration (UF) system is used to treat a broad range of industrial wastewater by separating insoluble components from waste streams. As a cost effective and simple solution for separating insoluble components and colloidal contaminants from a waste stream, wastewater UF offers significant advantages over conventional separation. It is a useful process that does not require chemicals or much space to separate insoluble contaminants.

UF is a pressure-driven process that removes the following from wastewater and other solutions:

• Emulsified oils
• Metal hydroxides
• Colloids
• Emulsions
• Dispersed material
• Suspended solids
• Other large molecular-weight materials

Ultrafiltration systems are also capable of concentrating:

• Bacteria
• Some proteins
• Some dyes
• Colloidal or emulsified components

Ultrafiltration systems excels at the clarification of solutions containing:

• Suspended solids
• Bacteria
• High concentrations of macromolecules including:
  • Oil and water
  • Fruit juice
  • Milk
  • Whey
  • Electro-coat paints
  • Pharmaceuticals
  • Poly-vinyl alcohol and indigo
  • Potable water
  • Tertiary wastewater

Ultrafiltration offers the following advantages over conventional separation:

• No chemical required
• Very little labor required
• Simple mechanical process
• Less sludge
• Ability to concentrate the retentate for beneficial use
• Less space required
• Overall lower operating costs

Tubular Configuration:

• Higher permeate rate
• Lower rates of fouling
• Higher concentration of retentate
• Easier to clean
• Longer membrane life
• Low operating cost

For more information on ultrafiltration for the removal of oils and grease, please contact us today.

https://www.dynatecsystems.com/technologies/membrane-technologies/ultrafiltration-systems/

Paint Manufacturer Reuses Latex

A paint manufacturer engaged Dynatec to provide a system to separate latex from wastewater and reuse it in the production of paint

The Problem

The company was using a chemically assisted, rotary drum vacuum pre-coat filter that was expensive to operate and created a lot of sludge which was expensive to dispose.

The Solution

The white paint wastewater was segregated from the colors, and processed separately. The concentrate of white latex solids were used in the manufacture of new white paint.

The paint solids from the colored paints can be concentrated to as high as 20% (typical paint contains between 45% and 55% solids) using wide channel ultrafiltration. The paint solids are concentrated and reused to make a grey paint. The water can be discharged to sewer, since it contains no solids, or it can be reused as wash water.

Special circulation pumps are also used to handle the high solids loadings.

Return on investment

The return on investment was high. The latex from the white paint wastewater is reused in the production process for manufacture of new paint. The paint solids from the colored paint wastewater is recovered as a saleable low quality paint product. The cost for disposal of the solids removed by the old chemical treatment system has been reduced by 90%. The wastewater from both processes is discharged to sewer.

Significant Savings:

 No sludge

 Beneficial use for latex

 Water quality for discharge is better

 Much less operator time

 No chemicals

Ultrafiltration excels at the clarification of solutions containing:

 Suspended solids

 Bacteria

 High concentrations of macromolecules including:

 Oil and water

 Fruit juice

 Milk

 Latex

 Whey

 Electro-coat paints

 Pharmaceuticals

 Poly-vinyl alcohol

 Potable water

 Tertiary wastewater

 Some proteins

 Some dyes

 Oils

 Colloidal or emulsified components

Contact Dynatec Systems today to discuss your wastewater solution!

https://www.dynatecsystems.com/technologies/membrane-technologies/ultrafiltration-systems/

Ultrafiltration for egg processing

Ultrafiltration for egg processing

High protein content from the egg causes the BOD of wastewater from an egg processing plant to be high. The conventional approach is to treat the wastewater biologically, either aerobically or anaerobically. Both systems are expensive both to purchase and operate.

Solution

Tubular Ultrafiltration alone will reduce the BOD of the wastewater from an egg processing plant 94% on average. This simple filtration process mechanically separates the egg from the water and produces a concentrate of egg and water that can be processed by a renderer inexpensively.

97% of the filtered water purified by the Ultrafilter can be discharged to sewer.

Benefits

• Lower capital cost compared to the alternatives
• Much lower operating costs compared to the alternatives
• Simple mechanical system
• Less space required
• Permeate acceptable for Municipal sewer discharge
• Low cost for disposal of residual egg concentrate

Contact Dynatec Systems today to discuss your wastewater solution

https://www.dynatecsystems.com/industries/food-and-beverage/egg-processing

Dynatec Systems industry-leading tubular ultrafiltration (UF) system is used to treat a broad range of industrial wastewater by separating insoluble components from waste streams. As a cost effective and simple solution for separating insoluble components and colloidal contaminants from a waste stream, wastewater UF offers significant advantages over conventional separation. It is a useful process that does not require chemicals or much space to separate insoluble contaminants.

UF is a pressure-driven process that removes the following from wastewater and other solutions:

• Emulsified oils
• Metal hydroxides
• Colloids
• Emulsions
• Dispersed material
• Suspended solids
• Other large molecular-weight materials

Ultrafiltration systems are also capable of concentrating:

• Bacteria
• Some proteins
• Some dyes
• Colloidal or emulsified components

Ultrafiltration systems excels at the clarification of solutions containing:

• Suspended solids
• Bacteria
• High concentrations of macromolecules including:
  • Oil and water
  • Fruit juice
  • Milk
  • Whey
  • Electro-coat paints
  • Pharmaceuticals
  • Poly-vinyl alcohol and indigo
  • Potable water
  • Tertiary wastewater

Ultrafiltration offers the following advantages over conventional separation:

• No chemical required
• Very little labor required
• Simple mechanical process
• Less sludge
• Ability to concentrate the retentate for beneficial use
• Less space required
• Overall lower operating costs

Tubular Configuration:

• Higher permeate rate
• Lower rates of fouling
• Higher concentration of retentate
• Easier to clean
• Longer membrane life
• Low operating cost

For more information on using ultrafilter (UF) for your application, please contact us today.

A Clear Look at Reuse Systems

A Clear Look at Reuse Systems

Dynatec’s Tom Doherty had a great article published in the November 2021 issue of Water Environment & Technology (WE&T) Operations & Engineering magazine. 

Dynatec has completed over a hundred wastewater purification and reuse systems for industry and for sanitary waste. To begin, there needs to be a detailed characterization of the wastewater along with a detailed characterization of the requirements for reuse. The characterization of the wastewater and requirements for reuse will determine the treatment/purification requirements and thereby define the CAPEX and OPEX. This estimate of costs should be completed early in the process to determine if the reuse project has merit and is cost-effective.

All of Dynatec’s treatment and reuse systems employ membrane filtration because the properly selected membranes provide the best method of insuring the qualitative result desired and in almost every case they provide the most cost effective method of achieving the desired result.

Membrane selection is based upon wastewater characteristics and the desired recovered water quality requirements in the process in which the membranes are utilized.

With the above information, treatability work is typically conducted to define the treatment system requirements and design parameters.

Typical wastewater treatment/purification systems for reuse are as follows.

• Purification of process baths/tanks for reuse typically using ultrafiltration
  • Cleaning tanks with contaminants removed employing Ultrafiltration
  • Scrubbers with contaminants removed employing Ultrafiltration
  • Vibratory metal finishing with contaminants removed employing Ultrafiltration
  • Any other employing UF and RO filtration to produce higher quality water for reuse
• Recovery of specific components found in the wastewater
  • Precious metal recovery employing Ultrafiltration, Nanofiltration and/or Reverse Osmosis
  • Latex paint recovery employing Ultrafiltration
  • Textile size separation and recovery
  • Others where removal of water allows concentration of the product to be recovered
• MBR biological treatment for reuse in cooling towers, scrubbers and like type water users that do not require potable water or high-purity water
  • Food processing facilities where MBR permeate is used in cooling towers and scrubbers
  • Metal working facilities where MBR permeate is used in cooling towers and scrubbers
  • General manufacturing
• MBR biological treatment followed by Nanofiltration or Reverse Osmosis
  • All types of manufacturing and food processing facilities where there is a requirement for higher purity water for reuse.

https://www.dynatecsystems.com/technologies/recovery-and-reuse/