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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.

  • Koerber - Franz Ziel
    Pharmaceutical Isolator Glove Testing System (GTS) For Annex 1 Compliance

    The Isolator Glove Testing System enables for Annex 1 compliant wireless and tubeless leak testing of gloves installed in Isolators or RABS. The GTS with the latest software technology offers an extremely flexible and fully integrable solution for glove testing as part of glove management.

  • MLR-352H-gallery-ap2-920x920_v2
    PHCbi Humidified Plant Growth Chamber: MLR-352H-PA

    PHCbi brand's 10.4 cu.ft. (294 L) humidified plant growth chamber is designed to helps ensure highly accurate, reproducible chamber conditions. It allows for precise control of temperature, humidity, and lighting - making it ideal for drosophila breeding, diurnal growth studies, plant cell culturing and more. Robust cabinet construction with corrosion-resistant stainless-steel surfaces simplify cleaning and eliminate rust due to high humidity. It uses SNAP compliant, low flammability HFO refrigerants to assure low environmental impact.

  • GettyImages-2036497686-lab-team-collaboration-laboratory-tablet-computer
    Avance Clinical's Specialist Areas Of Focus

    Avance Clinical offers deep scientific expertise and extensive knowledge across a range of specialized therapeutic indications, consistently achieving global regulatory approvals.

  • GettyImages-1180581753-scientists-lab-monitoring-computer-laboratory
    Lab Equipment Monitoring For The Modern Lab

    Ensuring the integrity of results and maintaining regulatory compliance are paramount concerns for any lab today, especially with increasingly complex laboratory processes. Cloud-based device management offers several advantages for laboratory equipment monitoring.

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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.