RFICs

PRODUCTS

  • Qosina offers the largest stock inventory of medical valves including check valves, relief valves, hemostasis valves, luer-activated valves, tuohy borst adapters and drain valves.

  • Used Glatt Midi-Glatt fluid bed dryer base unit, stainless steel construction, 6 bar shock rating, EX and CE design, less chambers, serial# 9553, built 2007.

  • When it comes to your capsules, cleanliness is key. That’s why this revolutionary polisher guarantees that all areas of the polisher are easy to clean. The one-piece cylindrical polishing chamber promotes powerful, cyclonic air flow ensuring continuous movement and ease of cleaning.

  • Pharmaceutical leak testing is a crucial process for ensuring the safety and sterility of medical and drug packaging, particularly in applications such as CCIT Test Method Validations, pilot production runs, and small-scale production runs. While pharmaceutical manufacturers may not have the resources to invest in leak testing equipment or trained personnel, inadequate testing can have serious consequences. In this article, we will discuss the leak testing services offered by Pfeiffer Vacuum and how they can help manufacturers meet regulatory requirements and ensure the safety of their products.

  • Our any-frequency, any-output format Si5360 series clock generators combine a wide-band PLL with proprietary MultiSynth fractional synthesis technology to offer a versatile, ultra-low jitter clock generator platform.

WHITE PAPERS AND CASE STUDIES

NEWS

  • Securely Propagating Entanglement At The Push Of A Button
    7/11/2024

    Entanglement, Einstein's "spooky action at a distance", today is THE tool of quantum information science. It is the essential resource for quantum computers and used to transmit quantum information in a future quantum network. But it is highly sensitive.

  • GD Energy Products' Y-Shaped Drilling Module Now Rated For 10,000 PSI
    8/18/2025

    GD Energy Products (GDEP), the leading total solutions provider for the frac, drilling and well servicing pumps market, has announced its patented Y-Shaped Drilling Module is now rated for operating pressures up to 10,000 psi.

  • Researchers Discover Smarter Way To Recycle Polyurethane
    8/16/2024

    Researchers at Aarhus University have found a better method to recycle polyurethane foam from items like mattresses. This is great news for the budding industry that aims to chemically recover the original components of the material – making their products cheaper and better.

  • Naia Prepares First Production Of GRS-Certified Yarn
    2/20/2024

    In a significant achievement for Eastman, Naia Renew cellulosic fiber has received the Global Recycled Standard (GRS) certification. This certification validates Naia Renew’s certified recycled content, chain of custody, social and environmental practices, and chemical restrictions.

  • Fine-Tuning Zinc Supplementation, Light Exposure To Boost Microgreens' Nutrition
    8/26/2025

    Microgreens, which are young, edible plants that only take one to three weeks to harvest, are more than garnish at trendy restaurants — they could be the answer to global hunger, according to plant scientists at Penn State.

ABOUT

 

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.