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| 1 | Cationic content effects of biodegradable amphoteric chitosan-based flocculants on the flocculation properties显示文摘A series of biodegradable amphoteric chitosan-based flocculants(3-chloro-2-hydroxypropyl trimethyl ammonium chloride(CTA) modified carboxymethyl chitosan,denoted as CMC-CTA) with different substitution degrees of CTA were prepared successfully.The content of carboxymethyl groups in each CMC-CTA sample was kept almost constant.The solubility of the various flocculants showed that,higher cationic content of flocculants caused a better solubility.The flocculation experiments using kaolin suspension as synthetic water at the laboratory scale indicated that the substitution degree of CTA was one of the key factors for the flocculation properties.With the increase of cationic content,the flocculants were demonstrated better flocculation performance and lower dosage requirement.Flocculation kinetics model of particles collisions combining zeta potential and turbidity measurements was employed to investigate the effects of the cationic content of the flocculants on the flocculation properties from the viewpoint of flocculation mechanism in detail.Furthermore,flocculation performance using raw water from Zhenjiang part of Yangtze River at the pilot scale showed the similar effects to those at the laboratory scale. | Zhen Yang Yabo Shang Xin Huang Yichun Chen Yaobo Lu Aimin Chen Yuxiang Jiang Wei Gu Xiaozhi Qian Hu Yang Rongshi Cheng | 2012 | Journal of Environmental Sciences2012，24，8： | 8 |
| 2 | 煤泥絮体颗粒粒径分布规律研究显示文摘为研究煤泥水絮凝过程中絮体粒径分布规律,建立了煤泥絮体尺寸测量系统,应用图像处理技术处理絮体图像,统计分析不同搅拌历时下絮体的粒径分布规律。结果表明:煤泥水絮凝过程中絮体的粒径分布不遵循经验分布幂函数分布,而是符合分形分布和G-S分布函数分布,其拟合R2均大于0.96;当絮凝过程相对稳定时,R-R分布和对数正态分布也可以表征絮体颗粒的粒径分布,其拟合R2值分别高达0.99和0.97。 | 焦小淼 刘文礼 王东辉 谢勇 | 2016 | 煤炭工程2016，48，1： | 4 |
| 3 | 水中絮体颗粒粒径分布规律的研究显示文摘在Friedlande颗粒粒径分布函数的基础上进行理论分析,提出絮凝过程中絮体颗粒粒径的累积分布函数。以水中高岭土和腐殖酸为去除对象,在烧杯搅拌实验确定的最佳混凝条件下,采用颗粒计数仪对絮凝慢速搅拌过程进行监测和分析,利用粒径的累积分布函数对不同慢搅历时的颗粒粒径分布进行研究。通过实验表明:水中高岭土颗粒和腐殖酸为主要污染物时,絮凝过程中絮体颗粒的粒径分布函数不能很好的遵循经验公式得出的幂函数的形式,但是其分布规律能较好的符合对数正态分布。 | 刘飞 | 2012 | 低温建筑技术2012，34，6： | 3 |
| 4 | 循环流化床粉煤灰制备聚氯化铝的研究显示文摘以循环流化床粉煤灰为原料,通过盐酸浸出、聚合反应,成功合成了聚氯化铝产品,研究了产品的浊度去除率、脱色率、技术指标、絮体特性等参数。结果表明,在浸出温度为140℃、聚合温度为100℃,反应时间为2h时,合成的聚氯化铝产品混凝效果较好,产品技术指标优于国家标准。 | 邹萍 李文清 | 2019 | 化工矿物与加工2019，48，12： | 1 |
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