Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China
Landfill leachate has high COD, ammonia nitrogen and conductivity, these complex pollution characteristics make the reverse osmosis treatment load too high, which further leads to the decrease of membrane performance and membrane permeate flux. This paper took influent pH, operating pressure and tem...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Industrial Water Treatment
2024-12-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1061 |
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| author | ZHANG Huixiang ZHANG Xuemin SUN Sanxiang LI Li |
| author_facet | ZHANG Huixiang ZHANG Xuemin SUN Sanxiang LI Li |
| author_sort | ZHANG Huixiang |
| collection | DOAJ |
| description | Landfill leachate has high COD, ammonia nitrogen and conductivity, these complex pollution characteristics make the reverse osmosis treatment load too high, which further leads to the decrease of membrane performance and membrane permeate flux. This paper took influent pH, operating pressure and temperature as influencing factors, and COD, ammonia nitrogen and conductivity of concentrate and produced water as evaluation parameters, to derive the optimal working conditions by analyzing the changes of concentration multiplication rate, membrane flux and water production rate to treat leachate from a landfill plant in Lanzhou. The results showed that the effect of the three factors on the DTRO system was operating pressure>temperature>inlet pH, and when the pH was 6.5, the operating pressure was 6 MPa, and the temperature was 40 ℃. The system had the highest concentration multiplier of 4.07 and the best water production rate of 75.6% consistently, which reduced the load for subsequent concentrate treatment. |
| format | Article |
| id | doaj-art-da234b9e882f4806a628d21034d9c3b6 |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-da234b9e882f4806a628d21034d9c3b62025-01-14T02:07:08ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2024-12-01441210410810.19965/j.cnki.iwt.2023-10611005-829X（2024）12-0104-05Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest ChinaZHANG Huixiang0ZHANG Xuemin1SUN Sanxiang2LI Li3School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou730070, ChinaSchool of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou730070, ChinaSchool of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou730070, ChinaChina Railway Science Research Institute Co., Ltd., Chengdu610032, ChinaLandfill leachate has high COD, ammonia nitrogen and conductivity, these complex pollution characteristics make the reverse osmosis treatment load too high, which further leads to the decrease of membrane performance and membrane permeate flux. This paper took influent pH, operating pressure and temperature as influencing factors, and COD, ammonia nitrogen and conductivity of concentrate and produced water as evaluation parameters, to derive the optimal working conditions by analyzing the changes of concentration multiplication rate, membrane flux and water production rate to treat leachate from a landfill plant in Lanzhou. The results showed that the effect of the three factors on the DTRO system was operating pressure>temperature>inlet pH, and when the pH was 6.5, the operating pressure was 6 MPa, and the temperature was 40 ℃. The system had the highest concentration multiplier of 4.07 and the best water production rate of 75.6% consistently, which reduced the load for subsequent concentrate treatment.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1061landfill leachatedisk-tube reverse osmosisconcentration ratiowater yield |
| spellingShingle | ZHANG Huixiang ZHANG Xuemin SUN Sanxiang LI Li Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China Gongye shui chuli landfill leachate disk-tube reverse osmosis concentration ratio water yield |
| title | Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China |
| title_full | Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China |
| title_fullStr | Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China |
| title_full_unstemmed | Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China |
| title_short | Small pilot study of ultra-high pressure reverse osmosis technology for treating landfill leachate in Northwest China |
| title_sort | small pilot study of ultra high pressure reverse osmosis technology for treating landfill leachate in northwest china |
| topic | landfill leachate disk-tube reverse osmosis concentration ratio water yield |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1061 |
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