Landfill Leachate Treatment System
A landfill which produces 200,000gpd of leachate needed a new treatment system to be able to discharge to surface water. Dynatec provided a Membrane Bioreactor (MBR) that utilized an existing tank as the bioreactor. A Reverse Osmosis (RO) system was also provided to further purify the MBR permeate prior to discharge. Repurposing existing assets saved the customer significant costs. The MBR conversion was the easiest and most cost-effective method to achieve their treatment goals.
Landfill leachate treatment systems with Membrane Bioreactors (MBR)s have developed many unique process improvements for industrial wastewater applications. Dynatec successfully uses Ultrafiltration (UF), MBR and Reverse Osmosis (RO) for landfill leachate applications.
Landfill leachate treatment system requirements
Treatment can vary, depending on the discharge requirements, and the contaminants present
Landfill leachate is characterized by:
- High Total Dissolved Solids (TDS)
- Heavy metals
- High BOD
- Color
- High COD
- High ammonia
Landfill leachate treatment systems options
The MBR option: an aerated biological mixed liquor process operating at very high solids concentrations.
The advantages are:
- Long sludge age produces a well acclimated biomass. High concentration (typically 12,000 to 20,000 mg/l) provides very high rates of reaction
- Excellent nitrification and de-nitrification
- Smaller footprint then conventional aerated systems
- High-quality effluent as a result of using membranes for final clarification
- Lower sludge production than conventional systems
Alternative landfill leachate treatment options:
- Chemical precipitation of metals before MBR treatment
- RO after MBR treatment removes organic and inorganic contaminants, and color
- UF followed by RO
The two effluent streams from a RO system are:
- Permeate
- Concentrate (or reject)
This can be re-injected into the landfill. Its long-term effects on leachate concentrations should be considered.
Conclusion
The MBR process provides the highest possible levels of organic removal with essentially zero suspended solids in the effluent. This is the ideal feed system for RO treatment.
RO permeate can be used for other non-potable purposes:
For more information on landfill leachate treatment systems, please contact Dynatec.
https://www.dynatecsystems.com/industries/landfill-leachate-treatment/
Poultry Processing Plant MBR
Dynatec Systems’ installed a HiBrid™ UF for MBR service at a poultry processing plant that processes 800,000 gallons per day. The Membrane Bioreactor (MBR) operates at high flux which means less membrane surface area is required and ultimately saving capital cost. Dynatec Systems has installed over 600 membrane systems providing wastewater solutions since 1979. The HiBrid™ MBR UF combines sound engineering and effective process design with state-of-the-art materials of construction.
Outsource your wastewater service! Dynatec will design-build-own-operate-maintain (DBOOM) your wastewater treatment plant allowing you to concentrate on your core business.
The industrial MBR is the ideal bioreactor configuration for treatment of organic or inorganic contaminants present in industrial wastewaters. MBR’s 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.
Industrial Membrane Bioreactors Benefits:
- Higher flux
- Lower costs
- Better membranes
- Improved permeate quality
- Less operator attention and maintenance
Industrial Membrane Bioreactor (MBR) Applications
Dynatec’s industrial MBR is the ideal biological system for industrial wastewater treatment. It is designed to handle high strength wastewater containing high concentrations of:
- Biochemical Oxygen Demand (BOD)
- Chemical Oxygen Demand (COD)
- Oil & Grease (FOG)
- Volatiles
- Metals
- Ammonia
- Nitrate
- Inorganic
The performance is not affected by changes in sludge settleability like the conventional systems, making it the wise choice for industrial wastewater treatment systems that have difficult-to-treat waste streams. Dynatec’s MBRs can effectively handle industrial wastewater streams that would otherwise be toxic or inhibitory to other biological treatment systems.
Backed by decades of experience with MBRs, Dynatec has developed many unique process solutions necessary for industrial wastewater treatment applications such as:
- Landfill leachate
- Hazardous landfill leachate with metals removal
- Automotive manufacturing wastewater
- Food manufacturing wastewater
- Titanium processing wastewater
Contact Dynatec Systems today to discuss your wastewater solutions.
https://www.dynatecsystems.com/industries/food-and-beverage/poultry-processing-wastewater-treatment/
Chemical plant wastewater treatment
Chemical plant wastewater treatment was failing to meet discharge limits, installed a Dynatec UF system to separate emulsified fats, oils, and grease (FOG) from their permeate. The raw wastewater has more than 2,000ppm of emulsified FOG with peaks much higher at times. The system consists of four UF units and related components. The system currently treats 66gpm, but all 4 units are expandable. The permeate is free of FOG and is acceptable for discharge.
https://www.dynatecsystems.com/technologies/membrane-technologies/ultrafiltration-systems/
Chemical wastewater treatment utilizing membrane systems that range from selective separation of product to wastewater treatment and reuse. Dynatec Systems has provided many different chemical wastewater solutions.
Chemical Wastewater Treatment Solutions
- Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) for selective separation of product for recovery
- MBR biological treatment
- Wastewater reuse with MBR
- Conversions of existing systems to MBR
- Expand existing bioreactor treatment capacity
- Improve discharge quality
- Produce water for reuse
- Reduce surcharge
- High purity reuse with MBR and RO
Contaminants Removed
- Organics
- Inorganic solids
- Phenol
- Solvents
- Oils
- Acids
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
Dynatec specializes in extensive RO and NF membrane systems to remove soluble components of wastewater that may not have been removed by primary treatment. In most cases, the purified water can be reused.
RO is capable of rejecting soluble constituents of aqueous streams, such as:
- Bacteria
- Salts
- Sugars
- Proteins
- A wide range of organics and colors
- Improves the color, taste and properties of the fluid
RO can be used to purify fluids such as ethanol, which will pass through the reverse osmosis membrane, while rejecting other ions and contaminants from passing.
RO/NF systems
The most common use for reverse osmosis is in purifying water. It is used to produce water that meets the most demanding specifications. This differs significantly from other RO systems that are often only designed to treat potable water. Our system is specifically designed to accommodate:
- Minimize reject volume
- Variable characteristics
- Minimize fouling
RO and NF Technology
RO uses a membrane that is semi-permeable, allowing the fluid that is being purified to pass through it, while rejecting the contaminants that remain. Most NF and RO systems are operated in crossflow to allow the membrane to continually clean itself.
Integrated clean-in-place (CIP)
The membrane skid has an integrated CIP system on the skid. This is especially important for wastewater reuse systems because the cleaning frequency of the skid is often higher than in other RO applications. With an integrated CIP system, cleaning is fast and easy, minimizing the operator’s time.
Tubular Configuration:
- Higher permeate rate
- Lower rates of fouling
- Higher concentration of retentate
- Easier to clean
- Longer membrane life
- Low operating cost
To discuss your wastewater treatment solution, please contact us today.
MBR RO for Reuse
MBR RO for reuse, A domestic manufacturer of personal protective equipment is undergoing a major plant expansion. The company now needs to treat their wastewater for reuse as they discharge to a small POTW that could not handle the new volumes or contaminant loading. The new wastewater treatment plant is being built in stages. The first system is a relatively small MBR to handle the first phase of their expanded production. The second system is designed to handle their full-scale production, which will only be several months after the first phase is completed. This system includes an EQ tank, MBR with pre and post anoxic tanks and tubular UF, and RO. The system is designed so that all the RO permeate can be reused while the RO reject can be discharged to the local POTW. One of the goals of the MBR is to reduce nitrates from a high initial concentration to very low levels so that the RO reject will meet that total nitrogen limits for discharge to the POTW. The plant is designed so that future expansion is easily achieved. 
Recovery and reuse 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
Recovery and reuse 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 about wastewater reuse, contact us today.
https://www.dynatecsystems.com/technologies/recovery-and-reuse/
MBR Conversion – Pharmaceutical Company
A pharmaceutical firm suffered from frequent upsets to their existing treatment process. The existing conventional aerobic biological system followed by a gravity clarifier, led to discharge noncompliance.
Dynatec completed bench top treatability studies and pilot studies to confirm the best method to improve performance. Adding ultrafilters as part of the conversion to a Membrane Bioreactor (MBR) was the best course of action.
MBR Conversion – Pharmaceutical Company
The wastewater stream was high in organic content (BOD, COD), and suspended solids (TSS). The MBR conversion, using a Dynatec ultrafiltration system allowed the customer to run the biological system at high mixed liquor concentrations without concern for settling characteristics. The higher mixed liquor concentration and longer sludge age proved to be successful in consistently reducing BOD and COD into compliance.
The system was designed to treat nearly 300,000 gallons per day. The COD was consistently reduced to 300 – 500 mg/l from 14,000 mg/l while BOD was reduced to non-detect.
The upgraded system handled variable loads in terms of organic load and flow rates. It consistently delivered high-quality effluent with less operator attention than their previous system. Additionally, the customer no longer faced fines for exceeding discharge limits for organics and solids.
Dynatec completed the process design, provided the equipment, and performed the installation. Existing tanks and aeration were utilized, keeping the conversion cost to less than any alternative.
Dynatec Systems industry-leading tubular ultrafiltration (UF) system can be 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 ultrafiltration offers significant advantages over conventional separation. It is a useful process that does not require chemicals or much space to separate insoluble contaminants.
Contact Dynatec to discuss your wastewater treatment needs.
https://www.dynatecsystems.com/technologies/membrane-bioreactors/mbr-conversion-r…pgrade-solutions/
Wastewater reuse
Wastewater reuse is achieved at an automotive plant. Wastewater equipment to treat both sanitary and production
wastewater that included oily waste was designed and installed in a new transmission manufacturing facility. The goal was to treat and purify water for reuse.
Dynatec met these demands by providing a membrane bioreactor (MBR) followed by a reverse osmosis (RO) system. The MBR reduced BOD, TSS, and oil and grease to non-detect levels. The RO is used to polish the MBR effluent so that it is suitable for reuse. It is reused in cleaning operations, cooling tower, and all production applications.
80%-90% of the wastewater is purified for reuse. Additional industrial park wastewater (after primary clarification at the industrial park) is introduced to the system for treatment and purification. The system is designed to receive 300,000gpd and purify 250,000gpd for reuse.
This novel approach greatly reduced the total amount of wastewater discharged by this plant. It provided the water needed for production using a comprehensive system that Dynatec designed, supplied and installed.
Ultrafiltration (UF), Membrane Bioreactor (MBR), Nanofiltration (NF) and Reverse Osmosis (RO) are employed by Dynatec for these wastewater projects. Wastewater recovery and 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
For more information on wastewater reuse, please contact us today.
https://www.dynatecsystems.com/technologies/recovery-and-reuse/
High Quality Discharge MBR
Dynatec provides High Quality Discharge MBR system for Retirement Home
The retirement community consists of independent living homes and apartment homes in rural Maryland. The facility is in horse country, in a valley among rolling hills, and shares the area with high-end homes.
Previously, the facility had two septic tanks, and a recirculated sand bed filtration system. This created odors and caused mosquito infestations in summer. The facility chronically missed discharge limits, and thus was paying frequent fines. The sand bed filtration system was high maintenance, constantly flooding and requiring maintenance.
Replacement Criteria
In deciding on a replacement system, several criteria were important to the facility and to State regulators. The plant must be aesthetically pleasing. Odors must be minimized and if possible, eliminated. The plant had to achieve high levels of treatment to meet present and future discharge requirements. Future use of the treated water for irrigation is planned. The plant had to be operator friendly, and be capable of being monitored remotely, since full-time staff would not be available. The plant must be cost effective, from both capital and operating standpoints. Finally, the plant must be modular, in that future expansion of the facility must be accommodated in the design.
The initial plant sizing was nominally for 50,000 gallons per day of treatment capacity and has been expanded to 100,000 gallons per day.
System Design
After a review of the available treatment options, the owners of the facility decided on the (MBR) Membrane Bioreactor option. Due to the modular design of the system, they also chose the out-of-basin membrane module concept provided by the Dynatec MBR system. This process combines ease of use with all the requirements of both the owners and the regulators.
Odor control is achieved by using closed tanks vented to atmosphere. Air from the screening room is used to provide aeration to the reactors and the membranes, using the biomass as a biofilter. The negative pressure in the screen room ensures that there are no fugitive odors from the area. Mixing and aeration of the EQ tanks (the existing septic tanks) ensures no odors from that area.
Design Compatibility with the area: due to the nature of the area, the plant was designed to be installed in a “horse barn”, or at least a building that looks like a horse barn, but in fact, contains both the treatment plant and space for landscaping and other equipment.
High Levels of Treatment have been achieved since the plant’s inception in early 2007. Performance has been maintained since that time. Future plans include treatment for Total-N and Total-P to comply with Maryland’s “flush tax” requirements.
Cost Effective Installation was achieved using standard above-ground HDPE tanks, rather than the more common concrete tanks
Plant Expandability was achieved by the installation of one half of the plant, and the addition of a second membrane rack. No modifications to tanks or other work were required in 2009.
Conclusions:
Since completion and startup in early 2007, the plant has reliably performed, always producing high-quality water.
The Dynatec MBR concept provides economic advantages due to the modular design and the use of standard tanks. The cost of operation is modest when compared to alternatives.
Contact Dynatec Systems today to discuss your sanitary wastewater solution.
https://www.dynatecsystems.com/industries/sanitary-wastewater/
Flexographic Ink Wastewater Treatment
FLEXOGRAPHIC INK WASTEWATER TREATMENT
A corrugated box manufacturer utilized conventional batch physical/chemical treatment for processing wastewater generated from the clean-up of flexographic ink wastewater. The system consisted of chemical coagulation followed by conventional flocculation. A deep bed filter was used to clarify and dewater the waste. The system was operator intensive and generated lots of sludge for disposal.
Solution:
A tubular non-clog membrane filtration system was installed to process the waste stream. The waste was pH adjusted to optimize the removal of copper and zinc. The waste was circulated through the filter for discharge and the contaminants were concentrated. The
concentrate of contaminants was reduced to 2% of the original volume. The system reliably produces high quality water with very little operator involvement.
Simple Mechanical Process:
The membrane filter is a mechanical system that allows clean water to pass through the filter while contaminants are rejected and returned to the waste holding tank. There are no chemicals required other than that which may be necessary for pH adjustment. Also, there is no sludge generated by the process. The system simply separates the contaminants from the water, whereas a chemical treatment system generates copious amounts of sludge that must be dewatered and disposed.
Unattended Operation:
Since this process is completely mechanical and not dependent upon chemical feed and the coagulation and flocculation process, the only operational requirement is to clean the membrane filters periodically. This is a simple process that involves less than one half hour of an operator’s time. A chemical treatment system requires ongoing adjustments of the chemical feed pumps, make-up of the chemical feeds, operation of the dewatering system and control calibration and adjustment. The chemical system tasks require continual attention on a daily basis, whereas the membrane filtration system requires attention only for cleaning.
Consistently High Quality Water:
The membrane filter forms a positive barrier to the flow of contaminants, producing continuous high-quality water without operator attention. The membrane system is not affected by variability of the waste stream. The purified water is suitable for reuse or sewer discharge.
Low Disposal Cost:
The mechanical separation produced by the membrane filter does not generate sludge. It simply separates the contaminants from the water and leaves those contaminants in a liquid phase. The amount of liquid concentrate is normally very small and it is, therefore, cost-effective to dispose of that concentrate as a liquid waste and thereby preclude the need to run and operate a solidification and de-watering operation.
Low Operating Cost:
The membrane filtration system will be the least expensive treatment system to operate. The cost of operation of a membrane filtration system is much less than a chemical treatment system.
Contact Dynatec Systems today to discuss your wastewater solution today.
MBR for transmissivity improvement
MBR for transmissivity improvement – Dynatec provided a low pressure nanofiltration (NF) system to remove humic and fulvic acid to improve the transmissivity (UVT) of treated water discharge. The NF system also minimizes the reject volume making the membrane approach practical.
Demands for development of membranes with specific performance continue to increase as water quality requirements tighten and water treatment system designs become more complex.
Where UV is employed for disinfection the requirement for transmissivity improvement has become important at many facilities.
The NF membrane typically rejects only larger polyvalent cations and anions and as a result produces a very small volume of reject.
MBR for transmissivity
Nanofiltration systems are typically used for:
- Color removal from surface water sources including removal of disinfection precursors
- Retention of humic and fulvic acids in landfill leachate to improve UV transmissivity
- Pharmaceutical solvent recovery and management
- Removal of tar compounds in petroleum industry
- Separation of blood compounds in medicine
- Water softening
Dynatec specializes in extensive industrial reverse osmosis (RO) membrane systems and nanofiltration (NF) membrane systems to remove soluble components of wastewater that may not have been removed by primary treatment. In most cases, the purified water can be reused.
RO is capable of rejecting soluble constituents of aqueous streams, such as:
- Bacteria
- Salts
- Sugars
- Proteins
- A wide range of organics and colors
- Improves the color, taste and properties of the fluid
This process is commonly used to purify water and remove salts and other impurities. It can be used to purify fluids such as ethanol, which will pass through the reverse osmosis membrane, while rejecting other ions and contaminants from passing.
Industrial Reverse Osmosis/Nanofiltration systems
The most common use for reverse osmosis is in purifying water. It is used to produce water that meets the most demanding specifications. This differs significantly from other RO systems that are often only designed to treat potable water. Our system is specifically designed to accommodate:
- Minimize reject volume
- Variable characteristics
- Minimize fouling
RO and NF Technology
RO uses a membrane that is semi-permeable, allowing the fluid that is being purified to pass through it, while rejecting the contaminants that remain. Most NF and RO systems are operated in crossflow to allow the membrane to continually clean itself.
Integrated clean-in-place (CIP)
The membrane skid has an integrated CIP system on the skid. This is especially important for wastewater reuse systems because the cleaning frequency of the skid is often higher than in other RO applications. With an integrated CIP system, cleaning is fast and easy, minimizing the operator’s time.
For more information on nanofiltration, please contact us today.
Chemical Manufacturer Wastewater Treatment
A chemical manufacturer issued a PO for a new wastewater treatment system from Dynatec. Our customer is in the process of a major plant expansion and needed to meet new, stricter discharge limits. The wastewater is high in oil and grease, BOD, and COD. The new system will consist of an ultrafiltration system followed by a membrane bioreactor (MBR). The performance of this system was proven over several months of piloting. The results confirmed the selection of UF followed by MBR. The BOD in the permeate was regularly non-detect, down from as high as 40,000ppm in the raw wastewater. All other discharge limits were easily met.
Chemical wastewater treatment utilizing membrane systems that range from selective separation of product to wastewater treatment and reuse. Dynatec Systems has provided many different chemical wastewater solutions.
- Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) for selective separation of product for recovery
- MBR biological treatment
- Wastewater reuse with MBR
- Conversions of existing systems to MBR
- Expand existing bioreactor treatment capacity
- Improve discharge quality
- Produce water for reuse
- Reduce surcharge
- High purity reuse with MBR and RO
Contaminants Removed
- Organics
- Inorganic solids
- Phenol
- Solvents
- Oils
- Acids
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
Dynatec specializes in extensive RO and NF membrane systems to remove soluble components of wastewater that may not have been removed by primary treatment. In most cases, the purified water can be reused.
RO is capable of rejecting soluble constituents of aqueous streams, such as:
- Bacteria
- Salts
- Sugars
- Proteins
- A wide range of organics and colors
- Improves the color, taste and properties of the fluid
RO can be used to purify fluids such as ethanol, which will pass through the reverse osmosis membrane, while rejecting other ions and contaminants from passing.
RO/NF systems
The most common use for reverse osmosis is in purifying water. It is used to produce water that meets the most demanding specifications. This differs significantly from other RO systems that are often only designed to treat potable water. Our system is specifically designed to accommodate:
- Minimize reject volume
- Variable characteristics
- Minimize fouling
RO and NF Technology
RO uses a membrane that is semi-permeable, allowing the fluid that is being purified to pass through it, while rejecting the contaminants that remain. Most NF and RO systems are operated in crossflow to allow the membrane to continually clean itself.
Integrated clean-in-place (CIP)
The membrane skid has an integrated CIP system on the skid. This is especially important for wastewater reuse systems because the cleaning frequency of the skid is often higher than in other RO applications. With an integrated CIP system, cleaning is fast and easy, minimizing the operator’s time.
Tubular Configuration:
- Higher permeate rate
- Lower rates of fouling
- Higher concentration of retentate
- Easier to clean
- Longer membrane life
- Low operating cost
To discuss your wastewater treatment solution, please contact us today.
https://www.dynatecsystems.com/technologies/membrane-bioreactors/mbr-conversion-r…pgrade-solutions/