Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose
Sulfhydryl modified cellulose(Cell-SH) was used as adsorbent to treat the combined pollution of Hg(Ⅱ) and tetracycline(TC) in aqueous solution. Effects of pH and coexisting cations on the removal efficiency of composite pollution were investigated, and the adsorption isothermal curves, adsorption th...
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Editorial Office of Industrial Water Treatment
2024-10-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0958 |
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| author | LIAN Nengli LUO Jing LIN Changxue WANG Zhiying ZHUANG Rongjun XIAO Changye |
| author_facet | LIAN Nengli LUO Jing LIN Changxue WANG Zhiying ZHUANG Rongjun XIAO Changye |
| author_sort | LIAN Nengli |
| collection | DOAJ |
| description | Sulfhydryl modified cellulose(Cell-SH) was used as adsorbent to treat the combined pollution of Hg(Ⅱ) and tetracycline(TC) in aqueous solution. Effects of pH and coexisting cations on the removal efficiency of composite pollution were investigated, and the adsorption isothermal curves, adsorption thermodynamics, and kinetics were discussed. Meanwhile, the adsorption mechanism was explored. The results showed that Cell-SH exhibited good treatment performance on the combined pollution of Hg(Ⅱ) and TC in aqueous solution under pH of 6. The presence of co-existing cations in the solution had a relatively small effect on the removal of Hg (Ⅱ), while the presence of divalent cations had a greater impact on the adsorption of TC. The results of the cyclic regeneration experiments showed that Cell-SH exhibited good cyclic performance in adsorbing TC-Hg (Ⅱ), and after 5 adsorption-desorption cycles, both of the adsorption rate of TC and Hg (Ⅱ) could still maintain above 70%. The adsorption process fitted well with the quasi-second-order kinetic equation and Langmuir isothermal adsorption model, which implied that the adsorption of Hg(Ⅱ) and TC by Cell-SH belonged to monolayer adsorption. The adsorption process was mainly controlled by chemical adsorption. The adsorption of Hg(Ⅱ) and TC by Cell-SH involved electrostatic attraction, complexation, and hydrogen bonding. |
| format | Article |
| id | doaj-art-d7dcbd6ecc774f0cae4f2c2b9cdf54bd |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-d7dcbd6ecc774f0cae4f2c2b9cdf54bd2024-12-10T03:01:18ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2024-10-01441018319210.19965/j.cnki.iwt.2023-09581005-829X（2024）10-0183-10Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified celluloseLIAN Nengli0LUO Jing1LIN Changxue2WANG Zhiying3ZHUANG Rongjun4XIAO Changye5Guoneng Shenfu (Jinjiang) Power Generation Co., Ltd., Jinjiang 362200, ChinaFujian Huaxia Energy Design and Research Institute Co., Ltd., Fuzhou 350001, ChinaGuoneng Shenfu (Jinjiang) Power Generation Co., Ltd., Jinjiang 362200, ChinaGuoneng Shenfu (Jinjiang) Power Generation Co., Ltd., Jinjiang 362200, ChinaGuoneng Shenfu (Jinjiang) Power Generation Co., Ltd., Jinjiang 362200, ChinaFujian Huaxia Energy Design and Research Institute Co., Ltd., Fuzhou 350001, ChinaSulfhydryl modified cellulose(Cell-SH) was used as adsorbent to treat the combined pollution of Hg(Ⅱ) and tetracycline(TC) in aqueous solution. Effects of pH and coexisting cations on the removal efficiency of composite pollution were investigated, and the adsorption isothermal curves, adsorption thermodynamics, and kinetics were discussed. Meanwhile, the adsorption mechanism was explored. The results showed that Cell-SH exhibited good treatment performance on the combined pollution of Hg(Ⅱ) and TC in aqueous solution under pH of 6. The presence of co-existing cations in the solution had a relatively small effect on the removal of Hg (Ⅱ), while the presence of divalent cations had a greater impact on the adsorption of TC. The results of the cyclic regeneration experiments showed that Cell-SH exhibited good cyclic performance in adsorbing TC-Hg (Ⅱ), and after 5 adsorption-desorption cycles, both of the adsorption rate of TC and Hg (Ⅱ) could still maintain above 70%. The adsorption process fitted well with the quasi-second-order kinetic equation and Langmuir isothermal adsorption model, which implied that the adsorption of Hg(Ⅱ) and TC by Cell-SH belonged to monolayer adsorption. The adsorption process was mainly controlled by chemical adsorption. The adsorption of Hg(Ⅱ) and TC by Cell-SH involved electrostatic attraction, complexation, and hydrogen bonding.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0958modified cellulosemercurytetracyclinecompound pollutionadsorption |
| spellingShingle | LIAN Nengli LUO Jing LIN Changxue WANG Zhiying ZHUANG Rongjun XIAO Changye Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose Gongye shui chuli modified cellulose mercury tetracycline compound pollution adsorption |
| title | Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose |
| title_full | Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose |
| title_fullStr | Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose |
| title_full_unstemmed | Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose |
| title_short | Treatment of Hg(Ⅱ)-tetracycline compound pollution in water by sulfhydryl modified cellulose |
| title_sort | treatment of hg ii tetracycline compound pollution in water by sulfhydryl modified cellulose |
| topic | modified cellulose mercury tetracycline compound pollution adsorption |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0958 |
| work_keys_str_mv | AT liannengli treatmentofhgiitetracyclinecompoundpollutioninwaterbysulfhydrylmodifiedcellulose AT luojing treatmentofhgiitetracyclinecompoundpollutioninwaterbysulfhydrylmodifiedcellulose AT linchangxue treatmentofhgiitetracyclinecompoundpollutioninwaterbysulfhydrylmodifiedcellulose AT wangzhiying treatmentofhgiitetracyclinecompoundpollutioninwaterbysulfhydrylmodifiedcellulose AT zhuangrongjun treatmentofhgiitetracyclinecompoundpollutioninwaterbysulfhydrylmodifiedcellulose AT xiaochangye treatmentofhgiitetracyclinecompoundpollutioninwaterbysulfhydrylmodifiedcellulose |