RFICs

PRODUCTS

  • Mettler-Toledo - X12
    X-Ray Inspection System: X12

    High-performance x-ray inspection system that delivers improved product quality and increased product safety. The X12 system is the perfect solution for small-medium food and pharmaceutical products.

  • MMPX-00002PSM_450x300
    DC-18 GHz Passive MMIC Surface Mount Quadplexer: MMPX-00002PSM

    The MMPX-00002PSM is a passive MMIC (Monolithic Microwave Integrated Circuit) quadplexer designed to multiplex signals across four distinct frequency bands: DC–6 GHz, 8–10 GHz, 12–14 GHz, and 16–18 GHz.

  • 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.

  • CPI - PTXM9754
    Broadband Microwave Power Module: PTXM9754

    The PTXM9754 is an ultra compact modular microwave power module (MPM) with an integrated “super mini” travelling wave tube (TWT), a solid state preamplifier and an optimised high density switch mode power supply.

  • MDPX-00006PSM
    Passive MMIC 11GHz Diplexer/Reflectionless Filter: MDPX-00006PSM

    The MDPX-00006PSM is a versatile MMIC surface-mount diplexer designed to multiplex signals across two distinct frequency ranges: low-frequency DC to 10 GHz and high-frequency 12 to 28 GHz.

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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.