Effect of dosage strategy on Al-humic flocs growth and re-growth
Effect of dosage strategy on Al-humic flocs growth and re-growth
复制标题
剂量策略对腐植酸絮体生长和再生长的影响
DOI：
10.1016/j.colsurfa.2012.04.033
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发表时间：
2012-06
期刊：
影响因子：
--
通讯作者：
Jiuhui Qu
中科院分区：
文献类型：
--
作者：
Wenzheng Yu;Chengzhi Hu;Huijuan Liu;Jiuhui Qu
絮凝体的生长能力对混凝过程中固液分离的效率有显着影响。探讨了中性pH条件下一次性或连续投加絮体的生长和再生长，包括絮体破碎后一次性和连续追加投药策略。连续投加在破碎前形成的絮体尺寸远大于一次性投加形成的絮体尺寸。当不添加额外的混凝剂时，絮体破裂具有显着的不可逆性。对于一次性初始投药策略，追加一倍投药后重新生长的絮体尺寸与破碎前几乎相同。连续追加投加量形成的重新生长的絮凝体比一次追加投加量形成的絮凝体稍小。这明确表明絮体的生长或连接可能不是由絮体的尺寸分布和分形维数决定的，而是由絮体的表面活性决定的。额外的剂量可以提高絮体的重新生长能力，因为破碎的絮体的表面活性通过添加新的明矾得到修复。
The ability of flocs growth has a significant effect on the efficiency of solid/liquid separation during coagulation process. The growth and re-growth of flocs by one time or continuous dosage were explored at neutral pH, including one time and continuous additional dosage strategy after flocs breakage. The size of flocs formed by continuous dosage before breakage was much larger than the one formed by one time dosage. There was significant irreversibility of floc breakage when no additional coagulant was added. For the one with one time initial dosage strategy, the size of re-grown flocs by one time additional dosage was nearly the same as that before breakage. The re-grown flocs formed by continuous additional dosage were a little smaller than that formed by one time additional dosage. It definitely showed that the growth or connection of flocs was probably not determined by the flocs size distribution and fractal dimension, but by the surface activity of flocs. Additional dosage could improve flocs re-grown ability because the surface activity of broken flocs was repaired by adding new alum.
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DOI：
10.1006/jcis.2001.7694
发表时间：
2001-09
期刊：
--
影响因子：
--
作者：
T. Waite;J. Cleaver;J. Beattie
通讯作者：
T. Waite;J. Cleaver;J. Beattie
影响因子：
--
作者：
Tao Li;Zhe Zhu;Dongsheng Wang;C. Yao;Hong-xiao Tang
通讯作者：
Tao Li;Zhe Zhu;Dongsheng Wang;C. Yao;Hong-xiao Tang
影响因子：
12.8
作者：
Kevin McCurdy;K. Carlson;D. Gregory
通讯作者：
Kevin McCurdy;K. Carlson;D. Gregory
影响因子：
12.8
作者：
Ting Liu;Zhong-lin Chen;Wenling Yu;Ji-min Shen;J. Gregory
通讯作者：
Ting Liu;Zhong-lin Chen;Wenling Yu;Ji-min Shen;J. Gregory
影响因子：
3.4
作者：
M. A. Yukselen;J. Gregory
通讯作者：
M. A. Yukselen;J. Gregory