A system for recovering ammonia from a gas stream, the system comprising: • a regenerator configured to heat a carbon dioxide-rich ammonia-based solution at a low internal pressure to generate a carbon dioxide-rich gas stream comprising residual ammonia and carbon dioxide-lean ammonia-based solution, • a carbon dioxide wash station fluidly connected to the regenerator and configured to receive both the carbon dioxide-rich gas stream from the regenerator and an acidic solution having a dissolved acidic salt and bring them into contact to produce an ammonia-rich solution, • an ammonia stripper fluidly connected to the carbon dioxide wash station integral with the carbon dioxide wash station and configured to receive and heat the ammonia-rich solution from the carbon dioxide wash station to produce an ammonia-rich gas stream and the acidic solution, and • a carbon dioxide absorber fluidly connected to the ammonia stripper and configured to receive both the ammonia-rich gas stream from the ammonia stripper and a carbon dioxide-rich flue gas stream to produce the carbon dioxide-rich ammonia-based solution and a carbon-dioxide-lean gas stream, wherein the regenerator is fluidly connected to the carbon dioxide absorber so as to receive the carbon dioxide-rich ammonia-based solution from the carbon dioxide absorber, and characterized in that the system further comprises: • an appendix stripper fluidly connected to and integrated with the carbon dioxide wash station such that the carbon dioxide wash station receives a used wash water stream from the appendix stripper, and • the appendix stripper is configured to receive a portion of a carbon dioxide-lean ammonia-based solution from the regenerator wherein said carbon dioxide-lean ammonia-based solution comes from circulating ammonia-based solution, and wherein the appendix stripper is further configured to produce an ammonia-rich gas phase and an ammonia-lean liquid phase from said portion of a carbon dioxide-lean ammonia-based solution and to provide the ammonia-lean liquid phase as used wash water to the carbon dioxide wash station via conduit, and wherein the appendix stripper is further configured such that the produced ammonia-rich gas phase is re-introduced into the circulating ammonia-based solution. • a regenerator configured to heat a carbon dioxide-rich ammonia-based solution at a low internal pressure to generate a carbon dioxide-rich gas stream comprising residual ammonia and carbon dioxide-lean ammonia-based solution, • a carbon dioxide wash station fluidly connected to the regenerator and configured to receive both the carbon dioxide-rich gas stream from the regenerator and an acidic solution having a dissolved acidic salt and bring them into contact to produce an ammonia-rich solution, • an ammonia stripper fluidly connected to the carbon dioxide wash station integral with the carbon dioxide wash station and configured to receive and heat the ammonia-rich solution from the carbon dioxide wash station to produce an ammonia-rich gas stream and the acidic solution, and • a carbon dioxide absorber fluidly connected to the ammonia stripper and configured to receive both the ammonia-rich gas stream from the ammonia stripper and a carbon dioxide-rich flue gas stream to produce the carbon dioxide-rich ammonia-based solution and a carbon-dioxide-lean gas stream, wherein the regenerator is fluidly connected to the carbon dioxide absorber so as to receive the carbon dioxide-rich ammonia-based solution from the carbon dioxide absorber, and characterized in that the system further comprises: • an appendix stripper fluidly connected to and integrated with the carbon dioxide wash station such that the carbon dioxide wash station receives a used wash water stream from the appendix stripper, and • the appendix stripper is configured to receive a portion of a carbon dioxide-lean ammonia-based solution from the regenerator wherein said carbon dioxide-lean ammonia-based solution comes from circulating ammonia-based solution, and • an appendix stripper fluidly connected to and integrated with the carbon dioxide wash station such that the carbon dioxide wash station receives a used wash water stream from the appendix stripper, and • the appendix stripper is configured to receive a portion of a carbon dioxide-lean ammonia-based solution from the regenerator wherein said carbon dioxide-lean ammonia-based solution comes from circulating ammonia-based solution, and wherein the appendix stripper is further configured to produce an ammonia-rich gas phase and an ammonia-lean liquid phase from said portion of a carbon dioxide-lean ammonia-based solution and to provide the ammonia-lean liquid phase as used wash water to the carbon dioxide wash station via conduit, and wherein the appendix stripper is further configured such that the produced ammonia-rich gas phase is re-introduced into the circulating ammonia-based solution.