Reuse Water in Juice Plant
Reuse water ability in a new treatment system was needed in a juice processing company for other plant processes. The high strength wastewater, with a COD of 16,000mg/L, needed to meet stringent effluent criteria to make this possible.
Reuse water in juice plant
The solution, provided by Dynatec, includes a membrane bioreactor (MBR) followed by a double pass reverse osmosis (RO) system. The permeate meets all limits for BOD, COD, metals, TSS, and TDS.
Reuse water systems have been provided by Dynatec Systems to many industries. The ability to recover and reuse water has many benefits.
- Saving on water costs
- Saving on wastewater disposal charges
- Decreased environmental impact
- Protection from regulatory changes
- Decrease dependence on water provider/source
- Ability to expand without affecting water demand
- Overcome water scarcity issues
- Consistently high-quality for water reuse
Ultrafiltration (UF), Membrane Bioreactor (MBR), Nanofiltration (NF) and Reverse Osmosis (RO) are employed by Dynatec for water reuse projects. Water recovery and water reuse has been successfully implemented with industrial and sanitary wastewater streams for:
- Cooling tower make up
- Boiler feed
- Irrigation
- Toilet flushing
- Direct potable reuse
- Cleaning/wash applications
- Rinse processes
- Painting processes
- Other plant processes
Reuse water systems provided by Dynatec Systems:
- Resorts, hotels, and retirement homes
- Golf courses
- Automotive companies
- Food and beverage companies
- Apartment buildings
- Landfills
- Mines
- Metal finishing plants
- Aerospace companies
For more information, please contact us today.
https://www.dynatecsystems.com/technologies/recovery-and-reuse/
Sanitary Wastewater Expansion
Sanitary wastewater expansion of a previously supplied MBR by Dynatec Systems for a mall was recently completed. The original system treated the sanitary wastewater generated at the mall and wastewater from several restaurants on the property. Recent changes at the mall, including the addition of residential units, resulted in greater wastewater volumes. The expansion was relatively fast and easy due to the modular nature of Dynatec’s UF skids. The permeate meets all requirements for direct discharge to the environment and the compact design fits the limited space available at the mall.
Sanitary wastewater from private communities, industrial and academic campuses, resorts, and various other facilities can be treated to meet discharge permit limits or to meet reuse standards. Dynatec provides systems that accomplish this in a small space and with low operating costs.
Membrane bioreactor (MBR) solutions provided
- Plant expansion
- Improved effluent quality
- Purification for direct discharge
- Existing plant upgrades
- Sequencing batch reactor (SBR) to MBR conversions
- Wastewater reuse for:
- Cooling tower
- Boiler
- Toilet flushing
- Irrigation applications
- Recovery and reuse of wastewater for:
- Apartment buildings
- Industrial campuses
- Academic campuses
- Hotels and resorts
- Golf courses
- Compact wastewater treatment systems
- Containerized/mobile sanitary treatment systems
- Water mining systems
Significant Benefits
- Lower energy cost allows operation in larger plants
- Robust tubular membranes reduce replacement cost
- High mixed liquor concentration reduces tankage required and higher treated water quality
- Small system footprint
- Easily expandable
- Safe automatic clean-in-place system protects operators
- Predictable, consistently high performance
- Remote monitoring – compatible with cell phone or iPad
Contaminants removed from sanitary wastewater
- Biochemical Oxygen Demand (BOD)
- Oils and Grease (O&G)
- Total Suspended Solids (TSS)
- Ammonia
- Total N
- Fecal Coliforms
Completely sealed within tough, protective vessels, the membranes never move
- Permanently sealed design
- Rigidly supported tubular membrane prevents breakage
- No odors or smells
- Automatic cleaning systems
- No exposure to waste or mixed liquor above tanks
When you need consistently high-quality effluent, consider Dynatec Systems’ MBR wastewater treatment systems. You can lower your capital and operating costs with a single, compact system requiring minimal operator attention.
For more information on sanitary wastewater expansion, please contact Dynatec to discuss.
https://www.dynatecsystems.com/industries/sanitary-wastewater/
Anaerobic digester and aerobic MBR followed by RO for whiskey manufacturer
Anaerobic digester and aerobic MBR followed by RO provided by Dynatec Systems. A whiskey manufacturer needed a wastewater treatment system to reduce very high organic content BOD and COD. As well as, solids content TSS of the wastewater stillage to achieve the demanding final treated water discharge standards. A membrane filter is used for pretreatment prior to the anaerobic system. The tubular membrane filter employed with the biological system is not dependent on the settling characteristics and produces very high-quality effluent.
The equipment was containerized to make the implementation as easy as possible.
Membrane bioreactors offer a unique and effective solution for the treatment and reuse of industrial wastewater in industries such as landfills, automotive, aerostructures, distilleries and dairies. Our industry-leading designs and innovation also deliver superior performance for sanitary wastewater and biological nutrient removal applications.
The MBR configuration has proven to be optimal for treatment of many industrial wastewaters when treatment efficiency is an important consideration.
The MBR is the ideal bioreactor configuration for treatment of organic or inorganic contaminants present in industrial wastewaters. MBRs operate at a higher efficiency while achieving consistent design performance objectives. This makes MBR a more cost effective method of treatment when performance and tank requirements are considered.
Bioreactor systems such as the conventional activated sludge system, sequencing batch reactor system and trickling filters are typically designed for operation at a lower volumetric removal rate, requiring larger tanks and more space. These conventional systems often experience upsets that inhibit settling and therefore require much more operator attention than a membrane bioreactor.
The MBR has proven to be optimal for treatment of many industrial wastewaters because it is less susceptible to upsets. The MBR’s performance is not affected by changes in sludge settleability like the conventional systems, making MBR a wise choice for industrial systems that have more difficult to treat waste streams. Dynatec has over 42 years experience in dealing with difficult to treat industrial wastewaters using membrane filtration.
For more information on anaerobic digester and aerobic membrane bioreactor followed by reverse osmosis, please contact us today.
https://www.dynatecsystems.com/technologies/membrane-bioreactors/mbr-conversion-r…pgrade-solutions/
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/
Ultrafiltration Removes Oil and Metals
Ultrafiltration removes oil and metals to allow the treated water to be acceptable for discharge for an automobile parts manufacturer. A UF system was selected based upon its ability to consistently meet the discharge requirements without chemicals and with limited operator involvement. This 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 thus making this an excellent solution to this problem.
Ultrafiltration uses a membrane to separate suspended and colloidal materials in an aqueous phase. It will normally separate everything that is not soluble and some larger macro molecules that are soluble. Ultrafiltration uses a PVDF tubular membrane that is permeable to perform the separation. One of the uses that demonstrates the usefulness of ultrafiltration is separation of oil in an emulsion from water. In this case, machining coolant oil emulsions can have the oil separated and concentrated, with the water passing through the membrane, and the concentrated oil phase disposed.
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 systems to remove oil and metals, please contact us today.
https://www.dynatecsystems.com/technologies/membrane-technologies/ultrafiltration-systems/
MBR Discharge and Reuse
High quality discharge and reuse from MBR – Cereal Plant
Since the plant produces a food product, ultimate water quality was vital. The two-stage membrane system (MBR + RO) and final sterilization with ultraviolet (UV) treatment provided the quality assurance that plant management required. In addition, the membranes used in the MBR system are external to the aeration basin and are tubular. This type of membrane is much less susceptible to failure than the immersed type.
This process combines aerated biological treatment with an out-of-basin ultrafiltration (UF) system. In combination with reverse osmosis treatment, Dynatec was able to provide the client with the necessary assurances that the water quality would not be compromised, and that the water would be suitable for process purposes, such as boiler feed water.
System Advantages:
The system provides many advantages for the operators and owners
Redundant membrane skids for ease of operation and cleaning.
Simple automated cleaning operations with membranes in place
High mixed liquor concentration ensures lowest possible sludge production and requires smallest possible footprint
Simple, low maintenance system
Long-lasting tubular membranes with 0.03 μm membrane, ensuring removal of bacteria and viruses
The MBR configuration has proven to be optimal for treatment of many industrial wastewaters when treatment efficiency is an important consideration.
The MBR is the ideal bioreactor configuration for treatment of organic or inorganic contaminants present in industrial wastewater treatment systems. MBRs operate at a higher efficiency while achieving consistent design performance objectives. This makes MBR a more cost effective method of industrial wastewater treatment when performance and tank requirements are considered.
Bioreactor systems such as the conventional activated sludge system, sequencing batch reactor system and trickling filters are typically designed for operation at a lower volumetric removal rate, requiring larger tanks and more space. These conventional systems often experience upsets that inhibit settling and therefore require much more operator attention than a membrane bioreactor.
The MBR has proven to be optimal for treatment of many industrial wastewater treatment systems because it is less susceptible to upsets. The MBR’s performance is not affected by changes in sludge settleability like the conventional systems, making MBR a wise choice for industrial systems that have more difficult to treat waste streams. Dynatec Systems has over 42 years experience in dealing with difficult to treat industrial wastewaters using membrane filtration.
Contact Dynatec Systems today to discuss your wastewater solution.
https://www.dynatecsystems.com/industries/food-and-beverage/cereal/
Automotive Connectors Manufacturer
A leading automotive connectors manufacturer 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 the following effluent:
Parameters Influent Effluent
Oil and Grease 1,100 <100
Zinc 2.4 <1.48
Chromium 3.2 <1.7
Automotive Solutions Provided
- Oil and metals removal
- Membrane Bioreactor (MBR) biological treatment
- MBR for water reuse of wastewater
- High purity reuse with MBR and RO
Complete purification and reuse of wastewater system solutions for many automotive firms were provided by Dynatec Systems for:
- Cooling tower makeup
- Irrigation
- Boiler feed
- Paint line
Contaminants Removed
- Oil and Grease
- Metals
- Suspended Solids
- Surfactants
- Biochemical Oxygen Demand (BOD)
- Chemical Oxygen Demand (COD)
- Dissolved Solids
Automotive oily wastewater treatment systems for many facilities in the automotive industry were designed and supplied by Dynatec Systems including the following:
- Stamping plants
- Powertrain plants
- Assembly plants
- Bearing manufacturer
Our customers include many large car and truck brands as well as suppliers to those manufacturers.
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
Ultrafiltration 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
For more information, please contact us today.
https://www.dynatecsystems.com/technologies/recovery-and-reuse/
https://www.dynatecsystems.com/technologies/membrane-technologies/ultrafiltration-systems/
Color Removal with Membranes
Color Removal with Membranes
Membranes selectively remove dissolved species from a variety of sources including:
- Surface water
- Rinse water from fabric dyeing
- Industrial wastewater
Landfill leachate
Demands for development of membranes with specific performance continue to increase as water quality requirements tighten and water treatment system designs become more complex. Such demands lead to development of new reverse osmosis (RO) and nanofiltration (NF) membranes with higher rejection characteristics for better dissolved salts and boron removal.
New applications have developed which require selective removal of certain dissolved species such as:
- hardness
- natural organic matter (NOM)
- pesticides
- Organic material which causes color
Engineers desire high removal of specific contaminants in these applications, but at the same time want to maintain some level of salts in the water so it does not become aggressive, which can cause corrosion problems with piping in the distribution network.
Nanofiltration (NF) membranes have good selectivity for removal of naturally occurring organic compounds as well as iron. Organic material can be found in groundwater sources which have surface water intrusion, or groundwater sources which are influenced by decomposing vegetative materials. The contamination of these waters is measured in terms of color units.
Treated water from landfill leachate is another source of color in wastewater. When this wastewater is discharged to a municipal treatment plant (POTW), color and the presence of certain organic acids affect the performance of the final ultraviolet treatment step, causing the receiving facility to require that these components be reduced or eliminated.
Dynatec has developed a number of options for color removal with membranes and organic acid removal. Since each project requires different levels of removal and has different treatment requirements, treatability work is typically carried out to establish the required treatment process steps. Typically, treatment requirements not only include color removal, but may also require the removal of COD, BOD, oil and grease, metals, etc. The treatment steps may include:
- metals and/or free-floating oil
- settleable materials removal
- ultrafiltration for removal of suspended colloidal materials
- nanofiltration using several options that are available, depending on the requirements of the particular application
- reverse osmosis for the removal of color, dissolved solids and organics
Finally, some color removal can be accomplished with ion exchange resins specially developed for color removal.
Dynatec will carry out treatability work at their treatment lab or will provide small-scale pilot equipment that is shipped to the project site where longer term studies can be carried out.
Contact us today to discuss your wastewater treatment needs.
www.dynatecsystems.com/industries/textile-wastewat…reatment-systems/
Containerized Membrane Bioreactor Systems
Containerized membrane bioreactor systems:
- Easy low-cost installation
- No building required
- Easily moved to other locations
- Quick and easy mobilization
Dynatec has extensive experience in the supply of containerized membrane bioreactor systems:
Treatment of up to 35,000gpd of sanitary waste in one container:
Needs minimal operator attention
- Uses long‐lasting out‐of‐basin tubular membrane
- Produces high-quality purified water
Dynatec’s containerized membrane bioreactor systems use tubular out-of-basin membranes.
This concept provides many advantages:
- The system has the ability to operate at much higher levels of MLSS than conventional systems and immersed MBRs.
- High levels of MLSS allow for higher levels of treatment, improved discharge quality, lower Waste Activated Sludge (WAS) volumes as well as increased flows from the same size reactor vessels.
- The concept is simple, requiring minimal operator attention.
- An available option allows for remote monitoring and/or control for even less operator attention.
- The system can be provided with aerobic digestion alone, or with nitrification/denitrification for total nitrogen removal.
- The system is provided complete with system feed pumps and screening installed.
- The membranes used provide up to 5-log levels of bacteria removal, reducing fecal discharge to non-detect levels.
- The effluent from the system is suitable for many non-potable uses, including irrigation and toilet flushing. The effluent is suitable for further treatment, such as reverse osmosis without the requirement of any pretreatment, since no suspended solids are present, and residual organics are present only at low concentrations.
The MBR has proven to be optimal for treatment of many industrial wastewaters because it is less susceptible to upsets. The MBR’s performance is not affected by changes in sludge settleability like the conventional systems, making MBR a wise choice for industrial systems that have more difficult to treat waste streams. Dynatec has over 44 years experience in dealing with difficult to treat industrial wastewaters using membrane filtration.
Contact Dynatec Systems today to discuss your wastewater needs.
https://www.dynatecsystems.com/technologies/membrane-bioreactors/mbr-conversion-r…pgrade-solutions/