RFICs

PRODUCTS

  • EVB-MFBP-00095P Outline 5mm QFN-Model
    Evaluation Board For Passive GaAs MMIC Bandpass Filter: EVB-MFBP Series

    The EVB-MFBP is a connectorized evaluation board for the MFBP passive MMIC surface mount bandpass filter.

  • 200 Liter Precision Stainless Reactor SS
    Used 200 Liter Precision Stainless Reactor

    Used 200 liter Precision Stainless reactor, 316L stainless steel construction, dish top, dish bottom, rated 45 psi and full vacuum at 400 f internal, jacketed for 90 psi at 400 f, bottom agitator drive, on legs, serial# 4169-2, national board# 7117, built 1997.

  • leica-microsystems-dm-2500-led-hero
    Ergonomic Systems For Routine and Research Applications

    Optical microscope Leica DM2500 LED

    Leica DM2500 LED optical microscopes are tools for demanding tasks in life science routine and research applications. With their transmitted light illumination, optical performance, and state-of-the-art accessories, they are especially well-suited for challenging life science research tasks that require differential interference contrast or high-performance fluorescence.

  • DecFill SB
    Small Batch Aseptic Filling Systems For Powders And Liquids

    If you are looking for filling systems for different products such as liquids, powder, or flow-resistant highly viscous materials, Dec provides a modular concept allowing to meet a variety of packaging that is appropriate in the field of research and development as well as clinical trials. Speed up your go-to-market strategy with innovation and modular thinking.

  • Qorvo - QPA9822_PDP
    3.3 – 4.2 GHz 0.5 Watt Linear 5G Pre-Driver: QPA9822

    The QPA9822 is a wideband, high-gain, and high-linearity driver amplifier designed to handle wideband 5G NR instantaneous signal bandwidths, making it perfectly suited for m-MIMO applications.

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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.