En el documento de la referencia se revisan las principales t\u00e9cnicas de tratamiento de las aguas residuales de plantas productoras de distintos tipos de propulsantes, entre otras las aguas residuales de \u00e1cido n\u00edtrico fumante y las de hidrazina. Se analizan el mecanismo, el efecto del tratamiento, y ventajas y desventajas de varios m\u00e9todos. Los autores concluyen que los m\u00e9todos f\u00edsicos son ineficientes, el m\u00e9todo qu\u00edmico es propenso a la contaminaci\u00f3n secundaria, y el m\u00e9todo de biodegradaci\u00f3n es de muy larga duraci\u00f3n.<\/p>\n
The main treatment techniques of propellant wastewater, including red smoke nitric acid oxidant wastewater, hydrazine fuel wastewater, mixed amine and fuel wastewater, were reviewed. The mechanism, treatment effect, advantages and disadvantages of various methods were summarized and analyzed. The physical method is inefficient, the chemical method is prone to secondary pollution, and the biodegradation method has a long period. From an economic and safety point of view, the method of biodegradation or physico-chemical-biological joint treatment is more effective.<\/p>\n