Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment
Based on the principle of large reflux of concentrated water, two-segments and single-segment DTRO systems were used to treat concentrated brine in coal mine. The performance of the two DTRO was compared under various operating conditions, and the relationship between salt content, recovery rate, op...
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Editorial Office of Industrial Water Treatment
2025-01-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0236 |
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| author | WANG Renlei FENG Yun ZHU Li WANG Qingxi CAO Rong |
| author_facet | WANG Renlei FENG Yun ZHU Li WANG Qingxi CAO Rong |
| author_sort | WANG Renlei |
| collection | DOAJ |
| description | Based on the principle of large reflux of concentrated water, two-segments and single-segment DTRO systems were used to treat concentrated brine in coal mine. The performance of the two DTRO was compared under various operating conditions, and the relationship between salt content, recovery rate, operating pressure and output water quality were investigated. The actual operation showed that the operating pressure of two-segments DTRO was 0.7-0.9 MPa lower than that of single-segment DTRO, and the desalination rate was 0.10%-0.15% higher than that of single-segment DTRO. The higher the TDS or recovery rate of the influent, the more advantageous two-segments DTRO process was. The overall operation of the two DTRO systems was stable, running continuously for 3 months without obvious membrane contamination, and the water yield only decreased by about 8%. The water production cost of two-segments DTRO was about 0.3 yuan/m3 lower than that of single-segment DTRO. According to the characteristics of DTRO system, the energy saving optimization strategy was put forward in the aspects of concentrated water circulation, concentrated water energy recovery, circulating pump selection, high pressure pump operation. It provided a positive reference for the long-term stable operation and energy conservation of large-scale DTRO system in the application of concentrated brine treatment in coal mine. |
| format | Article |
| id | doaj-art-bcd7622e8db444cbb0cba37a62473eb9 |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-bcd7622e8db444cbb0cba37a62473eb92025-01-24T07:59:03ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2025-01-0145118619210.19965/j.cnki.iwt.2024-02361005-829X（2025）01-0186-07Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatmentWANG Renlei0FENG Yun1ZHU Li2WANG Qingxi3CAO Rong4Huadian Electric Power Research Institute Co., Ltd., Hangzhou310030, ChinaShaanxi Huadian Yuheng Coal Electricity Co., Ltd., Yulin719000, ChinaHangzhou Haorui Environment Technology Co., Ltd., Hangzhou310000, ChinaShaanxi Huadian Yuheng Coal Electricity Co., Ltd., Yulin719000, ChinaHuadian Electric Power Research Institute Co., Ltd., Hangzhou310030, ChinaBased on the principle of large reflux of concentrated water, two-segments and single-segment DTRO systems were used to treat concentrated brine in coal mine. The performance of the two DTRO was compared under various operating conditions, and the relationship between salt content, recovery rate, operating pressure and output water quality were investigated. The actual operation showed that the operating pressure of two-segments DTRO was 0.7-0.9 MPa lower than that of single-segment DTRO, and the desalination rate was 0.10%-0.15% higher than that of single-segment DTRO. The higher the TDS or recovery rate of the influent, the more advantageous two-segments DTRO process was. The overall operation of the two DTRO systems was stable, running continuously for 3 months without obvious membrane contamination, and the water yield only decreased by about 8%. The water production cost of two-segments DTRO was about 0.3 yuan/m3 lower than that of single-segment DTRO. According to the characteristics of DTRO system, the energy saving optimization strategy was put forward in the aspects of concentrated water circulation, concentrated water energy recovery, circulating pump selection, high pressure pump operation. It provided a positive reference for the long-term stable operation and energy conservation of large-scale DTRO system in the application of concentrated brine treatment in coal mine.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0236mine wastewaterzero dischargemembrane concentrationdtroperformance comparisonenergy conservation |
| spellingShingle | WANG Renlei FENG Yun ZHU Li WANG Qingxi CAO Rong Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment Gongye shui chuli mine wastewater zero discharge membrane concentration dtro performance comparison energy conservation |
| title | Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment |
| title_full | Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment |
| title_fullStr | Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment |
| title_full_unstemmed | Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment |
| title_short | Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment |
| title_sort | performance comparison and energy saving optimization for two dtro systems in coal mine concentrated brine treatment |
| topic | mine wastewater zero discharge membrane concentration dtro performance comparison energy conservation |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0236 |
| work_keys_str_mv | AT wangrenlei performancecomparisonandenergysavingoptimizationfortwodtrosystemsincoalmineconcentratedbrinetreatment AT fengyun performancecomparisonandenergysavingoptimizationfortwodtrosystemsincoalmineconcentratedbrinetreatment AT zhuli performancecomparisonandenergysavingoptimizationfortwodtrosystemsincoalmineconcentratedbrinetreatment AT wangqingxi performancecomparisonandenergysavingoptimizationfortwodtrosystemsincoalmineconcentratedbrinetreatment AT caorong performancecomparisonandenergysavingoptimizationfortwodtrosystemsincoalmineconcentratedbrinetreatment |