EFFECT OF POLYATOMIC ALCOHOLS ON CHROME CURRENT OUTPUT AT ELECTROCHEMICAL WASTE WATER PURIFICATION

D. Muhammadieva
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Abstract

Waste water is generated in almost all industrial enterprises and is contaminated with various organic and inorganic impurities and some heavy metals to varying degrees. The aim of this study is to study the effect of polyhydric alcohols on the current efficiency in the electrochemical method of purification of industrial wastewater contaminated with various heavy metals, in particular chromate ions. The current efficiency of chromium does not exceed 18% during the electrolysis of wastewate, during the process in the presence of xylitol in an amount of 0,16%, the current efficiency increased by 21,9%, in the presence of glycerin in an amount of 0,18%, the current efficiency increased by 23,1%, in the presence of ethylene glycol in the amount of 0,20%, the current efficiency increased by 24,2%
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多原子醇对电化学废水净化中铬电流输出的影响
几乎所有的工业企业都会产生废水,废水中不同程度地含有各种有机和无机杂质以及一些重金属。本研究的目的是研究多羟基醇对电化学方法净化含各种重金属特别是铬酸盐污染的工业废水的电流效率的影响。在电解废水过程中,铬的电流效率不超过18%,在木糖醇存在量为0.16%的情况下,电流效率提高21.9%,在甘油存在量为0.18%的情况下,电流效率提高23.1%,在乙二醇存在量为0.20%的情况下,电流效率提高24.2%
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