ammonia detection Articles

  • FAQ - Ammonia Gas Detection Systems

    Please view the full article to find the answers to these questions: Where might hazardous levels of ammonia occur? What ammonia gas detectors are available from CETCI? At what height should ammonia gas detectors be mounted? Where on the ceiling should the ammonia gas detector be located? How many ammonia gas detectors are required? What is a bump test and why should they ...

  • Short-term effect of ammonia concentration and salinity on activity of ammonia oxidizing bacteria

    A continuously aerated SHARON (single reactor high activity ammonia removal over nitrite) system has been operated to achieve partial nitritation. Two sets of batch experiments were carried out to study the effect of ammonia concentration and salinity on the activity of ammonia-oxidizing bacteria (AOB). Activity of AOB raised as free ammonia concentration was increased reaching its maximum value ...


    By IWA Publishing

  • 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

  • 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

  • Analysis of greenhouse gas emissions from 10 biogas plants within the agricultural sector

    With the increasing number of biogas plants in Germany the necessity for an exact determination of the actual effect on the greenhouse gas emissions related to the energy production gains importance. Hitherto the life cycle assessments have been based on estimations of emissions of biogas plants. The lack of actual emission evaluations has been addressed within a project from which the selected ...


    By IWA Publishing

  • 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

  • Online analyzers improve control of chloramination processes in Milwaukee - Case Study

    The Milwaukee Water Works is a national leader in providing high quality drinking water and monitoring water quality. Since 1998, it has invested $227 million in its infrastructure, from treatment plants to distribution systems, to ensure high quality drinking water and reliable supply. The Milwaukee Water Works treats Lake Michigan water with Ozone gas as a primary disinfectant because it ...


    By ChemScan, Inc.

  • Use of biocatalysts to reduce hydrogen sulfide emissions from lagoons and landfills

    Emission of odors from ponds and lagoons occurs due to aerobic and anaerobic decomposition of organic solids to release hydrogen sulfide, ammonia, and other organic by-products.  Aerobic biodegradation occurs near the water-air interface, where diffusion of oxygen occurs, while anaerobic degradation prevails mainly near the bottom of the pond or lagoon, where there is low or no dissolved oxygen ...


    By PRD Tech, Inc.

  • Modeling Strategy for SBR Recovery after Upset

    The paper presents results of treatability study on wastewater highly contaminated with ammonia (800 mg/l), (phenols (300 mg/l), thiocyanate (210 mg/l), and arsenic up to 11 mg/l. The study was conducted in two sequencing batch reactors (SBRs) using biomass from a coke plant. After two months of acclimatization the biomass was able to remove ammonia to below 1 mg/l and phenols and thiocynate ...

  • Nitrogen removal in a shallow maturation pond with sludge accumulated during 10 years of operation in Brazil

    Accumulated sludge in polishing (maturation) ponds reduces the hydraulic retention time (smaller useful volume), and this could potentially lead to a decrease in performance. However, settled biomass, present in the sediments, can contribute to nitrogen removal by different mechanisms such as nitrification and denitrification. This study investigated the influence of the bottom sludge present ...


    By IWA Publishing

  • Fate of Arsenic during Biological Treatment of High Strength Wastewater–Case Study

    The paper presents the results of treatability study on highly contaminated wastewater with phenols (300 mg/l), thiocyanate (210 mg/l), ammonia (800 mg/l) and arsenic up to 11 mg/l. The study was conducted in two sequencing batch reactors (SBRs) using biomass from coke plant. After two months of acclimatization the biomass was able to remove ammonia to below 1 mg/l and phenols and thiocynate ...

  • GasCheck tests offshore pipeline leakages

    Industry: Oil and Gas Application: Testing pipeline leaks on offshore oil rigs Customer: PSL Energy Services Introduction GasCheck 5000is was recently selected by PSL Energy Services to test pipeline leakages of major oil and gas companies. Based in Singapore, PSL are a leading provider of wells, pipeline, and process services for global customers including ...


    By Ion Science Ltd.

  • In addition to formaldehyde, decoration, what harmful gases?

    As the saying goes, clothes can make people more beautiful, in fact, the house is the same, when you buy a house, and give it a beautiful coat, can improve the quality of life, living in the house for a long time, re decoration, the old house and get a new life. However, the decoration pollution problem has become a lot of people's heart disease. Today we are going to talk about the ...

  • BUMP TESTING AMMONIA (NH3) SENSORS

    Bump testing a gas sensor involves flowing a concentration of gas that is slightly higher than the Low alarm setpoint of the gas detector for a short period of time (1-2 minutes or less). The purpose of a bump test is to confirm that the sensor responds to the presence of gas, the low alarm will activate and the gas detector overall ...

  • Ammonia leaks in the news - how to keep your employees safe

    Ammonia (NH3) has been hitting the news for all the wrong reasons, after several gas leaks have been reported at workplaces. ...


    By Analox Sensor Technology

  • Nutrient analysis system keeps wastewater plant in control - Case Study

    Problem The Denver, Colo., Metro Wastewater Reclamation District wanted near real-time nutrient analysis for a very challenging headworks wastewater aeration process, consisting of a combination of centrate and RAS. The centrate and RAS reaeration basin (CaRRB) effluent is added to primary effluent prior to mainstream aeration. Solution ASA Analytics ...


    By ChemScan, Inc.

  • Complete online monitoring solution for Waste Water Treatment Plant

    Due to the increasing number of requests for the monitoring of waste water treatment plant atmosphere, Chromatotec® has designed a specific analytical solution for sulfur and nitrogen compounds analysis. For more than 25 years, Chromatotec® has proven its value and expertise in measuring and recording sulfur concentrations in waste water treatment plant. Chromatotec® has completed its ...


    By Chromatotec Group

  • Treatment of wastewater from a low-temperature carbonization process industry through biological and chemical oxidation processes for recycle/reuse: a case study

    Low-temperature carbonization (LTC) of coal generates highly complex wastewater warranting stringent treatment. Developing a techno-economically viable treatment facility for such wastewaters is a challenging task. The paper discusses a case study pertaining to an existing non-performing effluent treatment plant (ETP). The existing ETP comprising an ammonia stripper followed by a single stage ...


    By IWA Publishing

  • Curren Hits the Bull`s Eye Using Online Process Analyzers

    Howard F. Curren Advanced Wastewater Treatment Plant improved its efficiency by upgrading to online process monitoring and control. The Howard F. Curren Advanced Wastewater Treatment Plant is one of the largest nitrification/denitrification filter plants in the world with a design capacity of 96 million gallons per day average daily flow. It serves about 110,000 accounts in the City of Tampa and ...


    By ChemScan, Inc.

  • Pure Oxygen Plus Nitrification? Biowin Modeling Plus Full-Scale Experience

    ABSTRACT High Purity Oxygen (HPO) activated sludge treatment and nitrogen removal do not have to be mutually exclusive. Some HPO activated sludge treatment facilities in relatively warm climates must address recently implemented or upcoming regulatory changes that require reduction of effluent nitrogen discharge levels. The 48.75 mgd capacity (annual average) Hollywood Southern Regional ...

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