[1]金鹏康,佘静静,刘　岚,等.典型pH 条件下腐殖酸混凝特性研究[J].西安建筑科技大学学报:自然科学版,2011,43(02):215-219.[doi:DOI :10.15986/j .1006-7930.2011.02.022]
　J IN Peng-kang,SHE J ing-j ing,LIU Lan,et al.Characterization of Al-humic complexation at typical pH[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(02):215-219.[doi:DOI :10.15986/j .1006-7930.2011.02.022]
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典型pH 条件下腐殖酸混凝特性研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
43
期数:
2011年02期
页码:
215-219
栏目:
出版日期:
2011-04-30

文章信息/Info

Title:
Characterization of Al-humic complexation at typical pH
文章编号:
1006-7930(2011)02-0215-05
作者:
金鹏康;  佘静静;  刘　岚;  王晓昌
(1.西安建筑科技大学环境与市政工程学院, 陕西西安710055 ;
2 .西部建筑科技国家重点实验室(筹), 陕西西安710055)
Author(s):
J IN Peng-kang ;  SHE J ing-j ing ;  LIU Lan ; WANG X iao-chang
(1.Scho ol o f Envir .&M uni.Eng ., Xi′an Univ .of Arch .&Tech .Xi′an, 710055, China ;
2 .S ta te Key Labor atory of Science and Techno log y in w est China (XAUAT), Xi′a n, 710055, China)
关键词:
腐殖酸; 光学在线监测; 荧光检测; 共聚络合
Keywords:
H umic acid ;  online optical monitoring ;  f luorescence technique ;  coprecipitation .
分类号:
X703 .5
DOI:
DOI :10.15986/j .1006-7930.2011.02.022
文献标志码:
A
摘要:
通过荧光检测和光学在线监测技术, 分析探讨了腐殖酸与铝盐的混凝特性.实验结果表明, 在弱酸性
和中性条件下腐殖酸与铝盐的混凝特性有着明显的差异.在弱酸性条件下, 铝离子与腐殖酸之间的共聚络合
反应占绝对优势, 而且水中残余铝离子浓度一直与铝离子总投量成线性关系.然而在pH =7 的条件下, 铝离
子的水解反应明显占优势, 直到铝离子投量超过0 .1 mM 之后才发生与腐殖酸的结合, 属于氢氧化铝沉淀物
对腐殖酸分子的吸附和网扫絮凝.
Abstract:
The cha racteristics of Al-humic comple xatio n in the pro cess o f coag ulation o f natural humic acids (H A)we re
studied using fluo rescence and optical monito ring techniques .Under two ty pical pH values , the pattern o f Al-humic interactio
n was found to be much different f rom each o the r throug h the fluo rescence analy sis result :At pH 5 .0 , the do sed Al
ions we re reacting w ith H A molecules at a co nstant ra te to fo rm Al-humic complexe s, w hile a t pH 7 .0 , the do sed Al remained
unrelated until its conce ntr atio n r ose to a higher v alue .By online mo nitoring of the pro cess of hydro ly sis/ precipita
tion of aluminum ions in a wa te r free of HA , it was found tha t at pH 5 .0, the aluminum species w hich could react with
HA mo lecules w ere so luble aluminum ions , but at pH 7.0, hy dro ly sis o f aluminum ions preferentially occur red and only
after they fo rmed hy drolyzed aluminum precipita te s, could reac tion begin between these precipita tes and H A molecule s.
The latter is believed to be a process of adso rptio n o r sweep flocculatio n r athe r than Al-humic comple xatio n.

参考文献/References:

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相似文献/References:

[1]杨毅,兰亚琼,金鹏康,等.水环境中腐殖酸的荧光参数及其与重金属络合常数特征[J].西安建筑科技大学学报:自然科学版,2017,49(03):432.[doi:10.15986/j.1006-7930.2017.03.019]
　YANG Yi,LAN Yaqiong,JIN Pengkang,et al.Characteristics of fluorescence parameters of humic acids in water environment and their complexing constants with heavy metals[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2017,49(02):432.[doi:10.15986/j.1006-7930.2017.03.019]

备注/Memo

备注/Memo:
＊收稿日期:2010-06-04 　　修改稿日期:2011-03-05
基金项目:国家自然科学基金资助项目(50708088 ,50978211)
作者简介:金鹏康(1974-), 男,陕西兴平人, 博士, 教授, 从事水和废水的深度处理技术研究
更新日期/Last Update: 2015-11-01