Ammonia Removal
Ammonia Removal - Related Videos
08:14
Ammonia Synthesis at Low Pressure
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Cited by 17 •
2017
Ammonia can be synthesized at low pressure by using a conventional catalyst and an ammonia selective absorbent.
12:05
Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
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Cited by 15 •
2013
Herein the procedures for plasma enhanced chemical vapor deposition of perfluoroalkanes on microporous materials such as metal-organic frameworks to enhance their stability and hydrophobicity are described. Furthermore, breakthrough testing of milligram quantities of samples is described in detail.
06:27
Fast and Accurate Exhaled Breath Ammonia Measurement
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Cited by 16 •
2014
Ammonia is an important physiologic metabolite relevant to various disease and wellness states. It is also a difficult molecule to measure in breath, which demands particular precautions be taken to obtain accurate results. Not all factors influencing ammonia are known, but progress can be difficult without accounting for these factors.
01:30
Preparation of Amines: Alkylation of Ammonia and Amines
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2025
Alkylation is one of the methods used to prepare amines. Direct alkylation of ammonia or a primary amine with an alkyl halide gives polyalkylated amines along with a quaternary ammonium salt through successive SN2 reactions. This process of making the quaternary salt through the direct alkylation method is called exhaustive alkylation. Each alkylation step makes the nitrogen center more nucleophilic, which triggers successive alkylations until a quaternary ammonium salt is formed. Considering...
09:30
Ammonia Fiber Expansion (AFEX) Pretreatment of Lignocellulosic Biomass
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Cited by 53 •
2020
Ammonia fiber expansion (AFEX) is a thermochemical pretreatment technology that can convert lignocellulosic biomass (e.g., corn stover, rice straw, and sugarcane bagasse) into a highly digestible feedstock for both biofuels and animal feed applications. Here, we describe a laboratory-scale method for conducting AFEX pretreatment on lignocellulosic biomass.
FAQs
Ammonia removal performance is shaped by ammonia concentration, pH, temperature, and flow rate, not by the treatment label alone. Those conditions help determine which approach is appropriate for a particular stream and whether the process meets its intended objective. Consequently, system selection must match operating conditions with the desired environmental outcome.
In nitrification, microorganisms oxidize ammonia to nitrite and then nitrate under oxygenated conditions. Oxygen therefore supports the biological conversion pathway rather than simply moving ammonia out of the treated medium. This route is especially relevant when treatment aims to transform nitrogen during wastewater processing and improve the resulting water quality.
These options do not rely on one common mechanism. Air stripping, ion exchange, adsorption, and membrane separation represent distinct physical or chemical treatment routes, whereas nitrification uses microorganisms under oxygenated conditions. Comparing them requires attention to ammonia concentration, pH, temperature, flow rate, and whether the goal is removal, conversion, or emission reduction.
A practical planning workflow begins by identifying ammonia concentration, pH, temperature, and flow rate. The treatment objective is then matched to a suitable physical, chemical, or biological approach, such as air stripping or nitrification. This structured comparison helps researchers choose a system for wastewater, water-quality, or emission-control needs.
Municipal and industrial wastewater facilities can apply ammonia removal to address differing treatment needs while supporting water-quality protection. The selected approach may physically or chemically separate ammonia, or biologically convert it through nitrification. Its value is measured against the intended outcome, such as reducing environmental harm or improving the quality of treated water.
Reducing ammonia can limit toxicity, odor, eutrophication, and other environmental harm. In agricultural and waste-management settings, the topic also relates to reducing nitrogen emissions, while in aquatic systems it supports ecosystem protection. These benefits connect treatment choices to both local concerns, such as water quality, and broader environmental management goals.