The experiment results show that adding a little amount PAA to the ammonium hydroxide can increase the sedimentation rate and improve the filtrate rate of ADU serosity evidently.

• 结果表明：在ADU沉淀过程中，通过在沉淀剂氨水中加入少量PAA，能显著增加ADU的沉降速度和改善ADU浆体的过滤性能；