[1]仝驰,董良飞,李迎春,等.铝改性凹凸棒石黏土除藻性能及机理[J].常州大学学报(自然科学版),2022,34(02):19-27.[doi:10.3969/j.issn.2095-0411.2022.02.003]
　TONG Chi,DONG Liangfei,LI Yingchun,et al.Performance and Mechanism of Algae Removal by Aluminum Modified Attapulgite Clay[J].Journal of Changzhou University(Natural Science Edition),2022,34(02):19-27.[doi:10.3969/j.issn.2095-0411.2022.02.003]
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铝改性凹凸棒石黏土除藻性能及机理()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第34卷
期数:
2022年02期
页码:
19-27
栏目:
环境科学与工程
出版日期:
2022-03-28

文章信息/Info

Title:
Performance and Mechanism of Algae Removal by Aluminum Modified Attapulgite Clay
文章编号:
2095-0411(2022)02-0019-09
作者:
仝驰1; 董良飞1; 李迎春1; 仲慧赟1; 鲁光辉2
(1.常州大学环境与安全工程学院,江苏常州213164;2.盱眙县中材凹凸棒石粘土有限公司,江苏淮安211700)
Author(s):
TONG Chi1;  DONG Liangfei1;  LI Yingchun1;  ZHONG Huiyun1;  LU Guanghui2
(1.School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China; 2.Xuyi County Sinoma Attapulgite Clay Corporation, Huai'an 211700, China)
关键词:
凹凸棒石黏土;  Al改性;  除藻
Keywords:
attapulgite clay;  aluminum modification;  algae removal
分类号:
X 542
DOI:
10.3969/j.issn.2095-0411.2022.02.003
文献标志码:
A
摘要:
针对河道、湖泊等自然水体藻类爆发问题,对凹凸棒石黏土进行Al改性,以提高其除藻效果,并通过SEM,XRD,FT-IR,XRF对Al改性凹凸棒石黏土进行表征。考察Al改性凹凸棒石黏土投加量、沉淀时间、初始搅拌速度及pH等因素对除藻效果的影响,以及改性前后黏土颗粒的表面电位变化。结果表明,当叶绿素a初始质量浓度为325 μg/L,Al改性凹凸棒石黏土投加量为60 mg/L、初始搅拌速度为372.5 r/min、沉淀时间为1 h、pH为6.7时,经处理后水样叶绿素a剩余质量浓度可达到湖泊轻富营养化标准。研究表明,Al包裹在凹凸棒石黏土表面形成了带正电性的改性凹凸棒石黏土,通过电中和作用,使藻类脱稳聚集,并以凹凸棒石黏土为凝聚核共同沉淀。
Abstract:
Aiming at the problem of algal blooms in natural water bodies such as rivers and lakes, Al-modified attapulgite clay was carried out to improve its algae removal effect. The Al-modified attapulgite clay was characterized by SEM, XRD, FT-IR and XRF. The effects of Al-modified attapulgite clay dosage, precipitation time, initial stirring speed and pH on the algae removal effect were investigated, as well as the surface potential changes of clay particles before and after modification. The results showed that when the initial mass concentration of chlorophyll a was 325 μg/L, the dosage of Al-modified attapulgite clay was 60 mg/L, the initial stirring speed was 372.5 r/min, the precipitation time was 1 h, and the pH was 6.7, the residual concentration of chlorophyll a in the treated water samples can reach the light eutrophication standard of lakes. Al was wrapped on the surface of attapulgite clay to form a positively charged modified attapulgite clay, which destabilized and aggregated algae through electric neutralization, and co-precipitated with attapulgite clay as a cohesive nucleus.

参考文献/References:

[1]SUN R, SUN P F, ZHANG J H, et al. Microorganisms-based methods for harmful algal blooms control: a review[J]. Bioresource Technology, 2018, 248: 12-20.
[2]赵华, 赵积开, 肖娴. 河湖藻类水华应急治理决策研究[J]. 环境科学导刊, 2021, 40(2): 11-13, 22.
[3]陈识文, 毛涛, 袁科平, 等. 水华治理方法研究进展[J]. 长江大学学报(自科版), 2014, 11(35): 69-73.
[4]HE L, LIN Z Y, WANG Y M, et al. Facilitating harmful algae removal in fresh water via joint effects of multi-species algicidal bacteria[J]. Journal of Hazardous Materials, 2021, 403: 123662.
[5]KONG Y, PENG Y Z, ZHANG Z, et al. Removal of Microcystis aeruginosa by ultrasound: inactivation mechanism and release of algal organic matter[J]. Ultrasonics Sonochemistry, 2019, 56: 447-457.
[6]YU Z M, ZOU J Z, MA X N. Application of clays to removal of red tide organisms III. the coagulation of Kaolin on red tide organisms[J]. Chinese Journal of Oceanology and Limnology, 1995, 13(1): 62-70.
[7]ANDERSON D M. Turning back the harmful red tide[J]. Nature, 1997, 388(6642): 513-514.
[8]向斯, 刘世昌, 赵以军, 等. pH值及黏土密度对壳聚糖改性絮凝剂除藻效果的影响[J]. 中国环境科学, 2015, 35(5): 1520-1525.
[9]俞志明, 邹景忠, 马锡年. 一种去除赤潮生物更有效的粘土种类[J]. 自然灾害学报, 1994, 3(2): 105-109.
[10]俞志明, 邹景忠, 马锡年. 一种提高粘土矿物去除赤潮生物能力的新方法[J]. 海洋与湖沼, 1994, 25(2): 226-232.
[11]SHEN L, LIN Y J, DU Q G, et al. Preparation and rheology of polyamide-6/attapulgite nanocomposites and studies on their percolated structure[J]. Polymer, 2005, 46(15): 5758-5766.
[12]凌慧诗, 王志红, 何晓梅, 等. 基于改性凹凸棒土的强化混凝处理高藻低浊原水工艺[J]. 环境工程学报, 2014, 8(7): 2765-2771.
[13]杨玉珍, 夏未铭, 杨瑾, 等. 水体中叶绿素a测定方法的研究[J]. 中国环境监测, 2011, 27(5): 24-27.
[14]杨恩, 刘红, 王佩, 等. 颗粒型凹凸棒土的高温活化及其吸附富集水中Pb2+的研究[J]. 硅酸盐通报, 2016, 35(1): 6-11, 38.
[15]董良飞, 蒋庭宇, 周美成, 等. 蜂窝型凹凸棒石黏土吸附气相甲醛研究[J]. 常州大学学报(自然科学版), 2021, 33(2): 1-7.
[16]赵莉莉, 刘文静, 何贤珍, 等. 三种絮凝剂除藻效果的比较[J]. 广东化工, 2011, 38(5): 69-71.
[17]王志红, 凌慧诗, 林鹏, 等. 含腐殖酸低浊原水的改性凹土强化混凝效果分析和参数确定[J]. 给水排水, 2015, 51(9): 124-128.
[18]孙晓霞, 宋秀贤, 张波, 等. 粘土-MMH体系对赤潮生物的絮凝作用机制研究[J]. 海洋科学, 1999, 23(2): 46-49.
[19]梁韩英, 程晓薇, 李俊鹏, 等. 壳聚糖联合聚合氯化铝强化混凝除藻的参数优化[J]. 中国环境科学, 2019, 39(6): 2568-2576.
[20]高阳俊, 曹勇, 赵振, 等. 基于叶绿素a分级的东部湖区富营养化标准研究[J]. 环境科学与技术, 2011, 34(s2): 218-220.
[21]孙华峰. DLVO理论在煤泥水絮凝机理中的应用分析[J]. 选煤技术, 2013(1): 39-41.
(责任编辑:谭晓荷)

备注/Memo

备注/Memo:
收稿日期: 2021-12-26。
基金项目: 江苏省科技厅资助项目(BE2018022); 江苏省研究生科研与实践创新计划资助项目(SJCX21-1192, SJCX21-1193)。
作者简介: 仝驰(1996—), 男, 江苏徐州人, 硕士生。通信联系人: 董良飞(1972—), E-mail: dlf@cczu.edu.cn
更新日期/Last Update: 1900-01-01