Fig. 1From: Treatment of old landfill leachate with high ammonium content using aerobic granular sludgeSchematic of the a GSBR and b ASBR: ① feeding pump; ② decanting pump; ③ air compressor; ④ air flow meter; ⑤ pH controller; ⑥ pH meter; ⑦ air diffuser; ⑧ waste sludge pump; ⑨ stir bar; ⑩ magnetic stir plateBack to article page