Published Nitrogen removal efficiency of an A2/O bio-reactor treating domestic sewage mixed with landfill leachate and fecal sewage by Yu J., Zhou S. 181-189_620_Yu_12-2.pdf
Published Removal of ammonia by clinoptilolite by Zabochnicka-Świątek M., Malińska K. 256-261_724_Zabochnicka_12-3.pdf