Inorganic Chemicals Industry >
Experimental study on salt separation of high salt wastewater from coal chemical HERO by DTNF nanofiltration membrane
Received date: 2020-05-26
Online published: 2020-09-27
The salt separation effect of DTNF nanofiltration membrane was tested at recovery rate of 70%,80% and 90%,and the high-level oxidation was selected to purify the coal chemical high salt wastewater from Xinjiang after HERO concentra-tion.The pilot test results showed that DTNF nanofiltration membrane had a good salt separation effect for HERO high con-centration salt wastewater;the purity of sodium chloride crystal salt after upgrading was ≥98.5%,which met the first grade standard of refined industrial dry salt in Industrial Salt(GB/T 5462—2015);the purity of sodium sulfate crystal salt was ≥98%,which met the first grade standard in Class Ⅱ of Industrial Anhydrous Sodium Sulfate(GB/T 6009—2014).
Shaocheng Lei , Yulin Li . Experimental study on salt separation of high salt wastewater from coal chemical HERO by DTNF nanofiltration membrane[J]. Inorganic Chemicals Industry, 2020 , 52(9) : 84 -87 . DOI: 10.11962/1006-4990.2020-0239
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