RFICs

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  • BE4
    Small Batch Pharmaceutical Blister Packaging System: BE4

    Ideal for small batch sizes, many format changes, or a wide variety of packaging materials – the BE4 reliably meets all requirements. It enables a highly efficient process thanks to the two-lane operation with a very small footprint. Thanks to the 100% modular concept of the Blister Expert platform, the BE4 can be upgraded to a high-speed solution at any time.

  • GettyImages-1938542776 doctor patient
    Scout Clinical Trial Patient Services

    Clear the path for global clinical trial participation with 24/7 live assistance and personalized patient support.

  • Mettler-Toledo - X52
    X-Ray Inspection: X52

    A premium dual energy x-ray inspection system offering outstanding detection of hard-to-find, low density contaminants, in a variety of applications. Available in standard and custom configurations.

  • Quantic - Eulex
    Microwave / mmWave Gap Capacitor: XG Series

    The XG Series low-profile gap capacitor features low insertion loss and ultra high self resonance frequencies for applications including DC blocking, RF Bypass, impedance matching, filtering, tuning and coupling.

  • Marki - C10-2800WG
    WR-28 (26.5-40 GHz) 10dB High Directivity Coupler: C10-2800WG

    The C10-2800WG is a WR28 10dB waveguide coupler featuring high directivity over a 26.5-40GHz operational bandwidth.

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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.