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    Pharmacovigilance Solutions

    Free your safety and clinical teams to focus on what matters most.

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    Rental Fleet: Dissolved Air Flotation

    World Water Works has a unique fleet of pilot and rental Dissolved Air Flotation equipment unparalleled in the Industry. Whether you are looking to prove out performance or take down large plants for maintenance, WWW has the ability to schedule and supply units to meet most needs. With units suitable for all industries, you are one call from finding your ideal solution.

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    PIC/S GMP Production

    Mycenax’s state-of-the-art biomanufacturing site is PIC/S GMP certified. Our highly qualified and well-trained team routinely manufactures high-quality biopharmaceutical products by mammalian cell culture and microbial fermentation processes. We continuously invest in our technologies and infrastructure to ensure that we constantly meet your evolving needs of today and tomorrow.

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    Trimble Unity

    Meaningful insights. Better results. Smarter utility management. Trimble Unity software platform offers a suite of applications and tools to support smart water management. Includes advanced workflows to map, manage, measure and improve asset performance.

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    Trimble Cityworks

    Deliver cost-effective, reliable public infrastructure—from permitting and construction to operation, maintenance and replacement. From the office to the field, Trimble Cityworks helps you improve service to your community while increasing safety, efficiency and performance.

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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.