不同混凝剂去除水体浊度的效果

IF 1.7 Q2 ENGINEERING, MULTIDISCIPLINARY
A. H. Sulaymon, Muna Y. Abdul-ahad, Roaa A. Mahmood
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引用次数: 0

摘要

近十年来,人们开始关注处理过的水中的铝残留物与阿尔茨海默病之间的关系,并更加关注天然混凝剂的开发。本研究旨在调查明矾作为主混凝剂与锦葵、阿拉伯树胶和秋葵作为助凝剂处理含有高岭土合成浊度的水样的效率。对初始原水浊度为 100、200 和 500(NTU)的水样进行了罐式测试实验。明矾、锦葵、阿拉伯树胶和秋葵的最佳剂量分别为:浊度为 100 NTU 时为 20、2、1 和 1 毫克/升;浊度为 200 NTU 时为 35、4、2 和 3 毫克/升;浊度为 500 NTU 时为 50、8、10 和 8 毫克/升。明矾的最佳 pH 值为 7,锦葵、阿拉伯树胶和秋葵的最佳 pH 值为 7.5。使用明矾作为主混凝剂与锦葵、阿拉伯树胶和黄秋葵处理水的残余浊度为 3.34 至 6.81 NTU,天然混凝剂处理水的 pH 值为 6.1 至 7.01。与低浊度相比,本研究中天然混凝剂的最佳剂量在去除高浊度方面具有更高的效率。通过使用天然混凝剂,Al2(SO4)3 的消耗量大大减少,沉淀率也有所提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Removal of Water Turbidity by Different Coagulants
During the last decade, there has been a concern about the relation between aluminum residuals in treated water and Alzheimer disease, and more interest has been considered on the development of natural coagulants. The present study aimed to investigate the efficiency of alum as a primary coagulant in conjunction with mallow, Arabic gum and okra as coagulant aids for the treatment of water samples containing synthetic turbidity of kaolin. Jar test experiments were carried out for initial raw water turbidities 100, 200 and 500 (NTU). The optimum doses of alum, mallow, Arabic gum and okra were 20, 2, 1 and 1 mg/L for100 NTU turbidity level, 35, 4, 2 and 3 mg/L , for 200NTU turbidity level and 50, 8, 10 and 8 mg/L for 500 NTU turbidity level, respectively. The optimum pH was 7 for alum, and 7.5 for mallow, Arabic gum and okra. The residual turbidity was 3.34 to 6.81 NTU by using alum as a primary coagulant with mallow, Arabic gum and okra, and pH values of the treated water by the natural coagulants were 6.1 to 7.01. The optimum dose of thenatural coagulants in the present study has higher efficiency in removing high turbidity in comparison with low turbidity.Natural coagulant showed many advantages in coagulation/flocculation process. By using natural coagulants, considerable decreasing in Al2(SO4)3 consumption, and Increasing in the rate of sedimentation can be achieved.
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来源期刊
Journal of Engineering
Journal of Engineering ENGINEERING, MULTIDISCIPLINARY-
CiteScore
4.20
自引率
0.00%
发文量
68
期刊介绍: Journal of Engineering is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in several areas of engineering. The subject areas covered by the journal are: - Chemical Engineering - Civil Engineering - Computer Engineering - Electrical Engineering - Industrial Engineering - Mechanical Engineering
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