HIGHLIGHTS
SUMMARY
The discharge of saline wastewater is a serious issue in many different industries. The application of a NF pretreatment decreases the overall recovery of the whole system, as part of the feed water ends up in the NF retentate. The results show thatapplication the application of twoevaporated salt (76.1%gypsum of salt recovery) is produced, whereas, without the NF pretreatNF with intermediate precipitation increases the salt recovery-26.7 pass NF with intermediate gypsum precipitation increases the salt recovery - 26.7kg/h kg/h of of ment, only 20.63 kg/h of . . .
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