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河道底泥电渗脱水及重金属去除试验研究

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针对河道底泥对环境的影响,本文采用生物表面活性剂槐糖脂和柠檬酸的复配溶液,以及建筑废弃泥浆试验得到的最佳絮凝剂,对河道底泥进行电渗处理试验。以出水量、电流密度、含水率分布、容许承载力及试验后河道底泥的重金属含量为评价指标,综合评判电渗试验效果。结果表明,电渗脱水处理效果明显,絮凝剂可以显著提高脱水效率;在重金属去除方面,不同区域重金属的去除率不同,其中阳极重金属去除率最高。
Experimental Study on Electroosmotic Dehydration and Heavy Metal Removal of River Sediment
In view of the influence of river sediment on the environment, the electroosmotic treatment test of river sediment was carried out by using the mixture solution of biosurfactant sophora locust and citric acid, and the best flocculant obtained from construction waste mud test. Water yield, current density, water content distribution, allowable bearing capacity and heavy metal content in river sediment after the test were used as evaluation indexes to comprehensively evaluate the test effect of electroosmosis. The results showed that the dewatering effect of river sediment was obvious, and the flocculant could significantly improve the dehydration efficiency. In terms of heavy metal removal, the removal content of heavy metals in different regions was different, among which the removal rate of anode heavy metal was the highest.

heavy metal removalelectroosmotic dehydrationelectroosmosis-vacuum precompression combinationwaste slurryriver sediment

张旭良、刘晨景

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天津市公路事业发展服务中心,天津 300000

天津市交通科学研究院,天津 300000

重金属去除 电渗脱水 电渗-真空预压联合 废弃泥浆 河道底泥

2024

交通节能与环保
人民交通出版社股份有限公司,交通运输部公路科学研究院

交通节能与环保

影响因子:0.286
ISSN:1673-6478
年,卷(期):2024.20(2)
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