International Journal of Students’ Research in Technology & Management eISSN: 2321-2543, Vol 10, No 2, 2022, pp 10-22 10 | Visit IJSRTM at https://mgesjournals.com/ijsrtm/ Latest trends on Ammonia Extraction: A detailed review of ten current literatures Kothar Al Qarni 1* , Mira Al Balushi 2 , Musallam Al Mahri 3 , Priy Brat Dwivedi 4 1*,2,3 Graduate Students, Mechanical & Industrial Engineering, National University of Science & Technology, Muscat, Oman; 4 Assistant Professor, Mechanical & Industrial Engineering, National University of Science & Technology, Muscat, Oman. Email: * musallam170200@nu.edu.om Abstract Purpose: This study was done to present a detailed review and analysis of the extraction of ammonia from a range of waste sources. Methodology: Ten excellent quality kinds of literature were selected for this study. In each literature, the authors have analysed, reviewed and described the adopted methodology, main findings and shortcomings of original research papers. Main Findings: Extraction of ammonia is a challenge as well as an opportunity, due to its potential application in fertilizer and hydrogen production. Novelty: Unlike other reviews, it is detailed in nature. The authors have reviewed the methodology, important tables, and images from the original literature. Keywords Ammonia Extraction, Fertilizer, Soil Pollution, Methane, Hydrogen Source. Article History Received on 30 th April 2022 Accepted on 25 th May 2022 Published on 28 th May 2022 Cite this article Al Qarni, K., Al Balushi, M., Mahri, M. A., & Dwivedi, P. B. (2022). Latest Trends on Ammonia Extraction: A Detailed Review of Ten Current Literatures. International Journal of Students’ Research in Technology & Management, 10(2), 10-22. https://doi.org/10.18510/ijsrt m.2022.1022 Copyright @Author Publishing License This work is licensed under a Creative Commons Attribution-Share Alike 4.0 International License INTRODUCTION The environmental problems of the accumulation of waste go beyond unpleasant odours and bad views to the leakage of toxins and the formation of fertile environments for the spread of many diseases and epidemics. In addition to this, an increase in carbon dioxide emissions through burning fossil fuels during waste disposal processes, or through the emissions of methane, ammonia, and sulfur dioxide directly from the waste, contributes the global warming. In farms and disposal plants, massive volumes of biomass wastes, such as animal manure and sewage sludge, are continually produced. One of the most popular techniques for disposing of these wastes is to utilize landfill and/or incineration, which require a lot of energy and generate pollution in the air and soil. Since biomass wastes contain nitrogen compounds and a variety of hydrocarbons, a novel alternative procedure for converting the wastes into valuable chemicals is required. One such chemical of concern is ammonia, which has long been employed as a fertilizer and is now gaining popularity as a hydrogen transporter. At room temperature, ammonia is a liquid with a pressure of 0.8 MPa and a large capacity for hydrogen storage (17.7 wt per cent hydrogen in ammonia). The breakdown of ammonia using catalysts such as ruthenium and nickel has created hydrogen. As a result, ammonia recovery from biomass wastes is required. After ammonia recovery, the leftover liquid wastes with lower ammonia concentrations might be utilized as liquid fertilizer, but raw biomass wastes with high ammonia concentrations cause soil eutrophication. Benefits and Risks of Ammonia: Ammonia (NH 3 ) is a prevalent toxin found in the garbage, fertilizers, and natural processes. Both the ionized (ammonium, NH 4 + ) and the unionized forms of ammonia nitrogen are used (ammonia, NH 3 ). A higher pH encourages the development of the more poisonous unionized form (NH 3 ), whereas a lower pH encourages the formation of the ionized (NH 4 + ) type. Bacterial breakdown of organic waste that has accumulated in sediment produces ammonia in sediments. By dissimilatory nitrate reduction, sediment microorganisms generate ammonia or mineralize organic nitrogen. Because nitrification (the conversion of ammonia to nitrite [NO 2 - ] and nitrate [NO 3 - ]) is impeded in anoxic sediments, ammonia is particularly common. Benthic and surface water biota may be harmful to ammonia produced in sediment. (Milne I, et al., 2000 ). Techniques to Reuse/Recollect/Capture Ammonia: The scientific and technical development in dealing with waste has led to reconsidering the tons of waste produced daily and looking at it as an alternative source of energy. The