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首页> 外文会议>The 41st IEEE International Conference on Plasma Science, and the 20th International Conference on High-Power Particle Beams >Removal of dyes from synthetic wastewater by plasmachemical coagulation
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Removal of dyes from synthetic wastewater by plasmachemical coagulation

机译：通过等离子化学混凝去除合成废水中的染料

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The Plasmachemical Coagulation (“Plasmacoagulation”) process is designed for the first time in this study to resolve 3 main problems associated with chemical coagulation processes which are effectiveness of the pollutants removal, excessive coagulant use and sludge disposal. The complete removal of dyes through this process was investigated. For this purpose, amaranth red was used as target pollutant and 100 mg.L of this azoic dye was treated by coagulation with 3 coagulants (aluminum sulfate, aluminum chloride and commercial Nalco) and the best conditions (pH and coagulant dosage) were determined by jar-test procedure at ambient temperature. The same solution was also treated by plasma using gliding electric discharge for various treatment times (i.e. 0, 5, 10, 15, 20 and 30 min) and post-discharge treatment times (0, 5, 10, 15, 20, 35, 50, 65, 80 and 95 min). Individual treatments achieved maximum dye reduction of 94.38% (aluminum sulfate), 98.23% (aluminum chloride) and 97.4% (Nalco); but large volumes of sludge were formed (8%, 23% and 15% for each coagulant respectively) and plasma exposure removed only 41.5% and 95 min. post-discharge treatment did not improved this removal to more than 5%. Plasmacoagulation optimized the process to complete bleaching of dye effluents (99% of dye removal) with 5 min. plasma treatment, reasonable consumption of coagulants and quantity of obtained sludge (1%).
机译：本研究中首次设计了等离子体化学混凝（“等离子体混凝”）工艺，以解决与化学混凝工艺相关的三个主要问题，即污染物去除的有效性，过量的混凝剂使用和污泥处置。研究了通过该过程完全去除染料。为此，将a菜红用作目标污染物，并用3种凝结剂（硫酸铝，氯化铝和市售Nalco）凝结处理100 mg的该偶氮染料，并确定最佳条件（pH和凝结剂用量）在环境温度下进行罐子测试程序。同样的溶液也使用滑动放电通过等离子体处理了各种处理时间（即0、5、10、15、20和30分钟）和放电后处理时间（0、5、10、15、20、35， 50、65、80和95分钟）。个别处理的最大染料还原量分别为94.38％（硫酸铝），98.23％（氯化铝）和97.4％（纳尔科）;但是形成了大量的污泥（每种凝结剂分别为8％，23％和15％），血浆暴露仅去除了41.5％和95分钟。出院后治疗不能将这种去除率提高到超过5％。血浆凝结优化了整个过程，可在5分钟内完成染料废水的漂白（99％的染料去除率）。等离子处理，合理消耗凝结剂和获得的污泥量（1％）。

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