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MBR

MBR

Taking the waste out of waste-water

Water Technologies Canada’s MBR solutions bring cost-effective, decentralized waste-water treatment to municipalities and industrial customers. By using CUT Membrane Technologies’ patented Permaflow™ UF membrane technology, in conjunction with a properly designed biological treatment, our MBR systems deliver treated effluent that meets the highest regulatory standards – allowing direct discharge and water reuse.

Treatment Targets: Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), Ammonia, Nitrogen, Phosphorus, Bacteria, Viruses

A typical waste water treatment and BOD removal process configuration is depicted in the following diagrams shown to the right.

Influent waste-water quality parameters in municipal applications are:

  • Biochemical Oxygen Demand (BOD): 110 – 350 mg/LTypical Wastewater Treatment
  • Total Suspended Solids (TSS): 120 – 400 mg/L
  • Nitrogen (ammonia and organic forms): ~ 40 mg/L

A typical Activated Sludge (AS) process achieves the following effluent water quality:

  • BOD : 5 – 20 mg/L
  • TSS: 2 – 10 mg/L
  • Total Nitrogen: 5 – 10 mg/L

MBR technology combines conventional activated sludge treatment with a membrane liquid-solid separation process, thus eliminating both the cost and space requirements of secondary clarification and filtration.Typical AS Process

Not only do MBRs ensure an effluent free of solids due to the positive barrier for suspended solids and colloidal materials, but also overcome the operational problems associated with poor sludge settling in conventional activated sludge processes, while maintaining a considerably higher MLSS concentration and sludge retention time. Consequently, both soluble and particulate organics in waste streams are effectively oxidized, and nutrient removal can be readily accomplished through biological nitrification, de-nitrification and chemical or biological phosphorus removal.

MBRs have the capability to consistently achieve the following effluent quality:

  • BOD: < 3 mg/L
  • TSS: < 1 mg/L,
  • NH3 -N: < 0.5 mg/L,
  • Total Nitrogen: < 3 mg/L,
  • Total Phosphorus: < 0.05 mg/L,
  • Turbidity: < 0.2 NTU

The consistent high quality effluent produced by our MBRs is suitable for a variety of municipal, industrial and commercial reuse purposes and can be applied in environmentally sensitive areas.

The MBR effluent is also an excellent water source for reverse osmosis applications to produce higher quality water for ground water recharge, or industrial pure water reuse.

mbr_crossflow_scheme

Water Technologies Canada’s Membrane Bio-Reactor has distinctive advantages when compared to a conventional treatment system:

a) Stable process – by withholding all the biomass and suspended solids, the MBR ensures an excellent effluent quality. In comparison, a conventional biological system is sensitive to the waste-water composition, resulting in poor biomass floc formation and settling, thereby, discharge of the micro-organisms and poor effluent quality.

b) Compact design – due to the highly effective membrane separation process, the active micro-organism population in the bio-reactor can be maintained at a concentration four to five times higher than in conventional systems, resulting in bio-reactor tank volumes of only 20-25% of the size of conventional systems. Furthermore, the secondary clarification process is also eliminated.

c) Excellent effluent quality – The UF membranes withhold all micro-organisms and most suspended solids, resulting in a clear and highly purified effluent that can be reused as process water or for irrigation purposes.

d) Low sludge production – The MBR operates at a low F/M ratio,  resulting in high sludge mineralization and minimizing the sludge volumes and overall operational costs.

e) The MBR’s modular design allows for scaling to any size in a cost effective manner

f) Remote monitoring and control

g) Automated operation, reduced maintenance

Water Technologies Canada has partnered with EnviroGem Inc. to provide technical services to clients in various industries like: pharmaceutical, petrochemical, biotech, food and beverage, refineries, chemicals, pulp & paper, textile, automotive, electronics, and so on.

Our clients are located around the world – Australia, Canada, Egypt, France, Germany, Hungary, India, Ireland, Italy, Malaysia, Mexico, Netherlands, Portugal, Puerto Rico, Saudi Arabia, Switzerland, Taiwan, Thailand, Trinidad, USA, etc..

We provide assistance in solving difficult problems with waste-water treatment, water recovery & reuse, water treatment, oily water treatment, nutrient (ammonia, nitrogen and phosphorus) removal, toxicity reduction, sludge management, color and salt removal, membrane applications, odor control, and VOC emissions control.

Together as a team with our clients, we have solved many challenging problems and saved millions of dollars in capital and operating costs.

Our client list includes Bristol-Myers Squibb, Johnson & Johnson, Pfizer, Merck, GE Water, Cargill, Coors, A. E. Staley, Dow, ExxonMobil, Monsanto, Uniroyal, Callaway Chemicals, Chemtura, Crompton Chemicals, Tyson Foods, etc.

Waste-water treatment plant personnel has been finding our ongoing technical support to be a very useful tool in keeping their plant running at peak performance, in terms of treatment goals and efficiency.

We have assisted our clients in the following areas:

  • Permit Negotiations
  • Waste Characterization and Waste Minimization
  • Water Recycle/Reuse
  • Conceptual Process Evaluation
  • Bench and Pilot Treatability Studies
  • Process and Equipment Selection
  • Full Scale Wastewater Treatment Plant Design
  • Design Reviews, Value Engineering
  • Start Up and Performance Evaluation
  • Evaluation of Existing Waste Treatment Plant
  • Troubleshooting
  • Process Optimization
  • Laboratory Setup
  • Training
  • Technical Support
  • Innovative Process Modifications
  • Existing Plant Upgrades
  • Process Automation and Control
  • Mergers & Acquisitions
  • Operating Data Analysis

Our philosophy and main goal is to work with every client to achieve their waste-water treatment objectives.