页岩气压裂返排液电渗析脱盐处理技术研究
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张傲,王好,冉凡,张琳婧,陈子薇,任宏洋
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Research on electrodialysis desalination technology for shale gas fracturing flowback fluid
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Ao ZHANG,Hao WANG,Fan RAN,Linjing ZHANG,Ziwei CHEN,Hongyang REN
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表3 电渗析过程中离子质量浓度随时间的变化
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Table 3 Variation of ion mass concentration with time during electrodialysis
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时间/min | K+/ (mg·L-1) | Na+/ (mg·L-1) | Ca2+/ (mg·L-1) | Mg2+/ (mg·L-1) | Cl-/ (mg·L-1) | SO42-/ (mg·L-1) |
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0 | 181.2 | 14 064.0 | 763.4 | 2 245.5 | 14 180.4 | 86.8 | 5 | 141.3 | 8 853.6 | 184.2 | 335.2 | 6 846.6 | 7.8 | 10 | 81.2 | 6 219.5 | 31.6 | 105.2 | 5 455.2 | 7.2 | 15 | 32.6 | 2 021.4 | 8.6 | 42.6 | 3 540.8 | 6.8 | 20 | 18.5 | 1 413.2 | 5.5 | 21.5 | 2 130.6 | 5.6 | 25 | 4.5 | 551.8 | 4.2 | 18.3 | 812.5 | 4.8 | 30 | 3.2 | 468.2 | 3.1 | 15.8 | 525.2 | 3.9 | 35 | 2.8 | 444.6 | 2.9 | 12.4 | 517.6 | 3.6 | 40 | 2.6 | 441.0 | 2.5 | 11.2 | 478.4 | 2.8 | 45 | 2.3 | 436.2 | 2.2 | 8.7 | 476.2 | 2.4 | 50 | 2.2 | 435.4 | 1.8 | 7.2 | 482.5 | 1.6 | 55 | 1.8 | 434.5 | 1.6 | 6.8 | 478.3 | 0.9 | 60 | 1.2 | 434.2 | 1.2 | 6.5 | 482.7 | 0.6 |
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