ammonia level Articles

  • Detection of moisture in ammonia gas

    Problem Statement As technologies advance, so does the request for ultra high purity ammonia. Ultra high purity (UHP) ammonia is used in the semiconductor industries, production of flat panel displays, and a number of other applications. Due to this rising interest in UHP ammonia, manufacturers are having to battle ammonia’s most prominent and damaging impurity--moisture. For ...


    By CIC Photonics, Inc.

  • The Wonders of Ammonia & Chlorine

    The two most common chemicals found in your home, office and commercial facilities in one form or another are Ammonia (NH3) and Chlorine (Cl2). They are also two of the oldest and most widely produced chemicals in commercial use around the world. Ammonia, a refrigerant by “nature” Refrigeration by mechanical means goes back to the 1800s and ammonia was among the earliest chemicals to ...

  • PureAire Universal Gas Detector Offers Protection Against Toxic Levels of Ammonia

    In March of 2016, an ammonia gas leak at a seafood processing plant in Boston left one worker dead. The fumes at the plant were so powerful that firefighters could not promptly enter the scene to mitigate the gas leak and try to save the staff member until much later. Reports show that 5,300 pounds of ammonia gas leaked out of the plant. If you work with ammonia at your facility, learn ...

  • Ammonia Vent Line Gas Detector

    The LPT-A Vent Line Ammonia Transmitter (P/N: LPT-A-VLT-NH3-S) is designed for continuous monitoring of ammonia levels in the vent lines of refrigeration systems caused by equipment failure or system over pressurization. Slow leaks of refrigerant can be costly over time and a dangerous situation could present itself if a high pressure release were to occur. The VLT provides continuous, ...

  • BIOAUGMENTATION MAINTAINS AMMONIA DISCHARGE CONSENTS

    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 ...


    By Cleveland Biotech Ltd.

  • Syntrophy of aerobic and anaerobic ammonia oxidisers

    Deammonification is known as an efficient and resource saving sidestream process option to remove the nitrogen load from sludge liquors. The transfer of the intermediate product nitrite between both syntrophic groups of organisms – aerobic and anaerobic ammonia oxidizers (AOB) – appears very sensitive to process conditions such as temperature, dissolved oxygen (DO) and operating nitrite level. ...


    By IWA Publishing

  • 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.

  • Nitrifying Bacteria - Koi Carp Ammonia Removal

    A range of nitrifying bacteria - Nitrosomonas (NS) and Nitrobacter (NB). NS converts Ammonia to Nitrite, NB converts Nitrite to Nitrate. Features: Fermented in-house by CBIO Available in a range of activity levels from 100 to 5000 mg/N/lt/hr Very short shelf-life, therefore fresh stocks always available Can be shipped world-wide at short notice ...


    By Cleveland Biotech Ltd.

  • Time-resolved ammonia measurement in vehicle exhaust

    The objective of this study was to identify the influence of sampling and analytical approach on the quality of NH3 emission data of a gasoline-fuelled three-way catalyst vehicle. NH3 concentration measurements have been performed in the tailpipe and in the diluted exhaust after a constant volume sampling (CVS) system during five different test cycles. Chemical ionisation mass spectrometry ...


    By Inderscience Publishers

  • Mathematical models and bacterial communities for ammonia toxicity in mesophilic anaerobes not acclimated to high concentrations of ammonia

    In this study, we evaluated ammonia toxicity in mesophilic anaerobic digestion at various pH values and total ammonia nitrogen (TAN) concentrations. We performed anaerobic toxicity assays (ATAs) to evaluate the toxicity effects of TAN and pH on mesophilic anaerobic digestion. Modeling based on the results of the ATAs indicated that the specific methanogenic activity (SMA) decreased by 30% at a ...


    By IWA Publishing

  • In-toilet disinfection of fresh fecal sludge with ammonia naturally present in excreta

    A simple treatment method, Safe Sludge disinfection, was developed to disinfect pathogens in fresh fecal sludge using the ammonia naturally present in excreta. In the first step, urea is hydrolyzed to ammonia (NH3/NH4+). In the second step, Ca(OH)2 is added to raise the pH level such that NH3, a known disinfectant, is the dominant form of ammonia; ...


    By IWA Publishing

  • Innovative system reduces ammonia at Hawick Sewage Treatment Works

    Hawick Treatment Works has reduced its ammonia discharge thanks to an innovative aeration system installed by market leaders Suprafilt. Aeration experts Suprafilt designed a highly efficient system using MF1100 plate diffusers, which increased the amount of oxygen to the site providing an instantaneous reduction in ammonia levels. The company, who are market leaders in designing and ...


    By Water Active Ltd

  • 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 ...

  • 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

  • Banding of urea increased ammonia volatilization in a dry acidic soil

    Volatilization of ammonia following application of urea contributes to smog formation and degradation of natural ecosystems. The objective of this study was to evaluate the impact of (i) incorporation and banding of urea and (ii) surface broadcast of slow-release urea types on NH3 volatilization in a dry acidic soil. Volatilization was measured using wind tunnels for 25 d after standard urea (140 ...

  • Biological Removal of Ammonia from Contaminated Air Streams Using Biofiltration System

    ABSTRACT Ammonia is a colorless, toxic, reactive and corrosive gas with a sharp odor. It is irritating to the skin, eyes, nose, throat, and lungs. Ammonia gas occurs in the environment naturally and is emitted by many industries and, therefore, its control is essential. Biofiltration is a new emerging technology that is being used as a control procedure. This study evaluates the use of a ...

  • Scrubers with a level head

    The available methods for removing pollutants from a gas stream are numerous, to say the least. A popular method, scrubbers allow users to separate gases and solids by allowing the gas to come into contact with a liquid stream. In the end, the pollutants are washed away in the effluent, and the gas exits the system to be used in later processes or to be released into the atmosphere. For many ...


    By Kimre, Inc.

  • Monitoring DMA level case study

    ABIC, a leading provider of veterinary products chooses MonoScan to monitor the level of DMA (Dimethylamine) tank in one of its plants located in Israel. ABIC, wholly owned by Teva Pharmaceutical Industries Ltd, is Israel's largest veterinary products manufacturer. The company produces a wide range of vaccines for poultry and livestock and other animals. ABIC's plants are equipped with ...

  • 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

  • Diversity and dynamics of ammonia-oxidizing bacterial communities in a sponge-based trickling filter treating effluent from a UASB reactor

    Changes in ammonia-oxidizing bacterial (AOB) population dynamics were examined in a new sponge-based trickling filter (TF) post-upflow anaerobic sludge blanket (UASB) reactor by denaturating gradient gel electrophoresis (DGGE), and these changes were linked to relevant components influencing nitrification (chemical oxygen demand (COD), nitrogen (N)). The sponge-based packing media caused strong ...


    By IWA Publishing

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