Abstract
Wastewater treatment for nitrogen recovery is an essential area at the crossroads of several topics, critical to the development of a sustainable civilization. Nitrogen recovery from wastewater necessitates a departure from conventional nitrogen mitigation measures. Based on criteria like sustainability (energy use and N2O emissions), nitrogen recovering ability, maturity of technology, nitrogen concentration, etc., some of the methods for nitrogen recovery from wastewater are discussed in this chapter. By using an adaptive policy-making methodology, nitrogen recovery technologies are explored and discussed. Struvite precipitation is one of the most promising mature technologies that is used in wastewater treatment plants, ammonia oxidation, air stripping process, vacuum membrane filtration, hydrophobic membrane filtration, and thermal sludge drying. Additionally, many techniques, such as microbial fuel and electrolysis cells, are also discussed in the specific scenario of wastewater treatment. For sustainable solutions, it is concluded that a number of different technologies must be implemented at the same time. When evaluating new developments and uncertainties, a road map for adaptation can be effective in addition to the goals of various nitrogen recovery technologies.
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