real-time water ammonia Articles

  • Real-Time Control Optimizes Extended Aeration Processes

    The population of Hillsborough County, Florida has doubled since the Valrico advanced wastewater treatment plant (AWTP) was built in 1990 to treat the sewage of several small communities west of the City of Tampa. When it began operation, the Valrico AWTP capacity was only 4 MGD; small when compared to Tampa's 96 MGD Howard F. Curren AWTP located not far to the east. But Valrico serves as a very ...

  • Determination of Ammonia and Nitrogen

    Customer: CAE Grand Ouest, France CAE is a laboratory of the Veolia Group located in Western France. The laboratory is specializing in environmental analysis, especially in water and soil analysis. Application: Determination of Ammonia and TKN in waste water and soil Total Kjeldahl Nitrogen (TKN) and Ammonia are common parameters for the evaluation of ...


    By BÜCHI Labortechnik AG

  • Aquamend: Ammonia Treatment

    AQUAMEND™ is an effective choice for the treatment of ammonia in water. The AQUAMEND™ process for the treatment of ammonia consists of the biological conversion of ammonia into nitrate, followed by reduction of the nitrate to nitrogen gas. This process can be accomplished in a single bioreactor or, in some cases, it may be preferable to reduce the ammonia into nitrate in one vessel and reduce the ...


  • Dissolved ammonia adsorption in water using over burnt brick

    The groundwater of Kathmandu Valley contains very high concentration of ammonia nitrogen which is in excessof WHO guideline value for drinking water. This study mainly focuses on the removal of ammonia nitrogen inwater by adsorption in locally available over burnt brick. The study was carried out in a 4.2 cm internal diametercolumn of 120 cm length packed with over burnt brick in up flow mode. ...


  • Dissolved Ammonia Adsorption in Water Using Over Burnt Brick

    The groundwater of Kathmandu Valley contains very high concentration of ammonia nitrogen which is in excess of WHO guideline value for drinking water. This study mainly focuses on the removal of ammonia nitrogen in water by adsorption in locally available over burnt brick. The study was carried out in a 4.2 cm internal diameter column of 120 cm length packed with over burnt brick in up flow mode. ...


  • Using ‘TransMembraneChemiSorption’ (TMCS) for Ammonia Removal from Industrial Waste Waters

    Dissolved gases like NH3, H2S or NOx in waste water lead to contamination in the sewage system and high treatment costs for municipal waste water treatment plants. This translates into high penalty fees that are paid by the company discharging these contaminates into the sewage stream. In many cases a membranebased water treatment system can be justified because of a favorable pay back time. ...

  • Mohawk Laboratories has acquired Strathtox providing greatly improved `real-time` studies

    Mohawk Laboratories, the research and development arm of NCH Corporation, has acquired Strathkelvin’s latest respirometer, StrathtoxTM, resulting in greatly improved ‘real-time’ bioremediation potential efficacy studies for its BioAmp system. This allows NCH to provide quick study results to its customers and potential customers in determining whether or not the bacteria ...

  • Ammonia diffusion through Nalophan™ bags

    The aim of the work is to verify the diffusion rate of ammonia through the Nalophan™ film that constitutes the sampling bag, considering storage times ranging from 1 to 26 h. The ammonia decay over time was evaluated using gas-chromatography for the quantification of ammonia concentration inside the bag. The research assesses the roles of both of ammonia and water concentration gradients ...


    By IWA Publishing

  • The effect of ammonia stress on nitrogen metabolism of Ceratophyllum demersum

    The objective of this paper was to determine the effect of total ammonia N concentration and pH on the N metabolism of Ceratophyllum demersum and to evaluate the stress caused by inorganic N enrichment in the water column on submersed macrophytes. In this experiment, pH values were carefully controlled to distinguish between the effects of un‐ionized NH3 and ionized NH4+. The results showed ...


    By John Wiley & Sons, Ltd.

  • A Calgary Wastewater Treatment Plant Finds Real-Time Information on Effluent Quality Critical to Achieving Consistent Performance in Biological Nutrient Removal

    In 1994, the Bonnybrook Wastewater Treatment Plant in Calgary, Alta., completed the first phase of an upgrade to biological nutrient removal (BNR) after several years of testing. Bonnybrook was not the first treatment plant to upgrade bioreactors for nutrient removal: Other communities had struggled with the technology. Bonnybrook operators determined that real-time information on final effluent ...

  • Quantitative and qualitative effects of bioaugmentation on ammonia oxidisers at a two-step WWTP

    Large waste water treatment plants (WWTP) often operate nitrification in two different process environments: the cold-dilute sewage is treated in the mainstream nitrification/denitrification system, while the high strength ammonia liquors from sludge dewatering are treated in a separate high temperature reactor (SBR). This study investigates transfer from nitrifier biomass into a two-stage WWTP, ...


    By IWA Publishing

  • Low-pH Ammonia Oxidation at a Biological Nutrient Removal Facility

    ABSTRACTMcAlpine Creek Wastewater Management Facility (MCWWMF), owned and operated by Charlotte Mecklenburg Utilities (CMU) of Charlotte, North Carolina, is permitted to treat 64 million gallons per day (mgd). Along with MCWWMF, three CMU treatment plants discharge effluent into the Catawba River just upstream of the South Carolina border. CMU worked with North and South Carolina regulators ...

  • Sanitising black water by auto-thermal aerobic digestion (ATAD) combined with ammonia treatment

    The effect of a two-step process on the concentration of pathogens and indicator microorganisms in black water (0.9–1% total solids) was studied. The treatment combined auto-thermal aerobic digestion (ATAD) and ammonia sanitisation. First, the temperature of the black water was increased through ATAD and when a targeted temperature was reached (33, 41 and 45.5 °C studied), urea was added to a ...


    By IWA Publishing

  • A short-term investigation using In-situ ammonia monitoring at a WWT, M Keown Severn Trent Water

    Summary: Two separate inlet streams are received for treatment at this works, one being predominantly domestic in origin and the other being predominantly industrial, arising from a local dye works. Their treatment is kept completely separate with municipal stream being subject to preliminary treatment, primary settlement, and secondary treatment in surface aerated activated sludge ...


    By Envitech Ltd.

  • Life stage sensitivity of the marine mussel Mytilus edulis to ammonia

    Ammonia is an important contaminant to consider in all toxicity tests. It is especially important to consider the impacts of ammonia in test methods that use sensitive water column organisms exposed to sediments or sediment extracts, such as pore water and elutriate toxicity tests. Embryo‐larval development toxicity tests, such as the 48‐h method using Mytilus mussel species, are particularly ...


    By John Wiley & Sons, Ltd.

  • Pulp & Paper: Ammonia Emergency Plan calls on Packed Tower Case Study

    A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively ...


    By CR Clean Air Group, LLC

  • CBio provides round-the-clock safeguard against illegal levels of ammonia case study

    A market leader in biomass engineering has launched a 24-hour biological safeguard system to protect organisations operating treatment plants against discharging illegal levels of ammonia. North East-based Cleveland Biotech (CB) has seen an increase in enquiries for its Amnite NS5000 product from companies which are obliged to prove to authorities they adhere to legal constraints over their ...


    By Cleveland Biotech Ltd.

  • Case History - Ammonia Emergency Plan Calls on Packed Tower to Scrub Released Chemicals

    Croll-Reynolds designed the Union Camp packed tower scrubber for ammonia removal efficiency at 99+% for the minimum single valve release and well over 90% for the entire range of operation. A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp's Dover, OH, ...


  • Chemical Industry: Ammonia Emergency Plan Calls on Packed Tower to Scrub Released Chemicals Case Study

    A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively with ...


    By CR Clean Air Group, LLC

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