RFICs

PRODUCTS

  • LAF Downflow Booths For Weighting and Sampling Powders
    LAF Downflow Booths For Weighing And Sampling Powders

    The LAF Downflow Booth provides product and personnel protection during the weighing or sampling of powdered substances through precise air circulation.

  • Polyzen medical bags
    Medical Bags, Bladders, And Membranes

    Polyzen is a single-source provider of polymer bags, bladders, and membranes for diverse applications in the medical industry. Our in-house polymer development, film extrusion, thermoforming, and welding capabilities allow us to manage any project from concept to prototype, production, validation, and beyond. Our goal is to be the trusted one-stop source for premium quality medical bags, bladders, and membranes, delivering unmatched reliability and outstanding customer service.

  • Ribbon Blenders for bulk blending
    Ribbon Blenders For Bulk Blending Applications

    ROSS Ribbon Blenders efficiently mix powders, granules, and bulk solids across industries, offering customizable lab-to-production models for various bulk densities, including heavy-duty and sanitary applications.

  • HUBER+SUHNER_MXP_640x640
    MXP Multicoax Cable Assemblies

    The HUBER+SUHNER MXP Multicoax Cable Assemblies are high-performance interconnect solutions designed for demanding high-frequency applications.

  • GettyImages-1087218908 In the Manufacturing Facility Team of Scientists Wearing Sterile Protective Coverall
    Biologics Manufacturing

    Recipharm Advanced Bio GMP manufacturing units focus on process robustness and consistency to ensure product quality, purity and efficacy. Our multi-product manufacturing facilities feature state-of-the-art equipment for animal cell-derived viral and microbial products for your clinical trials in phase 1-2 and in accordance with cGMP guidelines.

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About Nutrient Removal

Nutrient removal from wastewater consists of treating wastewater to remove nitrogen and phosphorus before it reenters natural waterways. High levels of nitrogen and phosphorus in wastewater cause eutrophication, a process where excess nutrients stimulate excessive plant growth such as algal blooms and cyanobacteria. The decomposition of the algae by bacteria uses up the oxygen in the water causing other organisms to die. This creates more organic matter for the bacteria to decompose. In addition, some algal blooms can produce toxins that contaminate drinking water supplies.

As authorized by the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) permit program regulates point sources, such as municipal wastewater treatment plants, that discharge pollutants as effluent into the waters of the United States. In recent years, many of the States’ environmental bodies have lowered nutrient limits to arrest eutrophication. Maryland’s effort to protect the Chesapeake Bay and its tidal tributaries is perhaps the most notable example of nutrient removal in the US. Nutrient removal continues to be a growing area of focus for wastewater treatment throughout the world.   

The removal of nitrogen and phosphorus require different nutrient removal processes. To remove nitrogen, the nitrogen is oxidized from ammonia to become nitrate through a process called nitrification. This process is then followed by denitrification where the nitrate is reduced to nitrogen gas which is released to the atmosphere and removed from the wastewater.

Nitrification is a two-step aerobic process which typically takes place in aeration tanks. Denitrification requires anoxic conditions to encourage the appropriate biological conditions to form. The activated sludge process is often used to reduce nitrate to nitrogen gas in anoxic or denitrification tanks.

Phosphorus can be removed biologically using polyphosphate accumulating organisms (PAOs) which accumulate large quantities of phosphorus within their cells and separate it from treated water. Phosphorus removal can also be achieved by chemical removal. Once removed as sludge, phosphorus may be stored in a land fill. However, many municipalities and treatment facilities are looking to resell the biosolids for use in fertilizer.