The adsorption of ammonia on ceramic adsorbent was studied
at room temperature (25 ± 3 C) by static batch experiments. All
the solutions (2500–10,000 mg L1) for the ammonium nitrogen
adsorption experiments and analysis were prepared on the spot
by dissolving NH4Cl in deionized water. Adsorption experiments
were conducted in airtight plastic tubes of 50 mL.