A CASE STUDY ON TREATMENT OF REFRACTORY REVERSE OSMOSIS CONCENTRATED BRINE WITH HIGH ALKALINITY, HIGH BROMINE BY DUAL MEMBRANE TECHNOLOGY

ZHANG Lele; GUO Lei; CHENG Zhigang; YANG Zhilin; MA Yue; QIN Xin; YANG Chaosi

doi:10.13205/j.hjgc.202312029

Volume 41 Issue 12

Dec. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(12): 236-240,328

ZHANG Lele, GUO Lei, CHENG Zhigang, YANG Zhilin, MA Yue, QIN Xin, YANG Chaosi. A CASE STUDY ON TREATMENT OF REFRACTORY REVERSE OSMOSIS CONCENTRATED BRINE WITH HIGH ALKALINITY, HIGH BROMINE BY DUAL MEMBRANE TECHNOLOGY[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 236-240,328. doi: 10.13205/j.hjgc.202312029

Citation:

ZHANG Lele, GUO Lei, CHENG Zhigang, YANG Zhilin, MA Yue, QIN Xin, YANG Chaosi. A CASE STUDY ON TREATMENT OF REFRACTORY REVERSE OSMOSIS CONCENTRATED BRINE WITH HIGH ALKALINITY, HIGH BROMINE BY DUAL MEMBRANE TECHNOLOGY[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 236-240,328. doi: 10.13205/j.hjgc.202312029

Citation:

ZHANG Lele, GUO Lei, CHENG Zhigang, YANG Zhilin, MA Yue, QIN Xin, YANG Chaosi. A CASE STUDY ON TREATMENT OF REFRACTORY REVERSE OSMOSIS CONCENTRATED BRINE WITH HIGH ALKALINITY, HIGH BROMINE BY DUAL MEMBRANE TECHNOLOGY[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 236-240,328. doi: 10.13205/j.hjgc.202312029

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A CASE STUDY ON TREATMENT OF REFRACTORY REVERSE OSMOSIS CONCENTRATED BRINE WITH HIGH ALKALINITY, HIGH BROMINE BY DUAL MEMBRANE TECHNOLOGY

doi: 10.13205/j.hjgc.202312029

Jiangsu Fangyang Water Co., Ltd., Lianyungang 222000, China

Received Date: 2023-03-08
Available Online: 2024-03-08

Abstract

Abstract

The popularization and application of the dual membrane technology for reclaimed water reuse are seriously restricted by whether the high salinity and refractory reverse osmosis concentrated water can be treated to meet the emission standard. In this paper, taking an actual project of high alkalinity and high bromine reverse osmosis concentrated brine treatment in an industrial park in Jiangsu Province as an example, the main factors affecting the effluent quality were discussed, and the best process operation parameters were determined. The project operation results showed that the treatment effect of the ozone biochemical coupling system will be affected, when Br^- concentration and alkalinity were too high. Properly adding hydrogen peroxide can provide a masking effect on bromine ions and reduce the impact of high-concentration bromine ions on ozone utilization efficiency. When the dosage of hydrogen peroxide was 80 mg/L and the alkalinity was controlled less than 2000 mg/L, the COD removal efficiency of the ozone biochemical coupling system increased from 10% to 46%, and the effluent of the whole system met the emission standard. The treatment of RO-concentrated brine in this project can provide guidance and reference for the treatment of similar wastewater.
- dual membrane technology,
- high salinity brine,
- bromine ion,
- project operation,
- ozone biochemical coupling system

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References(12)

References

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