Electrochemical iron production to enhance anaerobic membrane treatment of wastewater
Само за регистроване кориснике
2022
Аутори
Hu, ZhetaiZheng, Min
Hu, Shihu
Hong, Pei-Ying
Zhang, Xueqing
Prodanović, Veljko
Zhang, Kefeng
Pikaar, Ilje
Ye, Liu
Deletic, Ana
Yuan, Zhiguo
Чланак у часопису (Коригована верзија)
Метаподаци
Приказ свих података о документуАпстракт
Although iron salts such as iron(III) chloride (FeCl3) have widespread application in wastewater treatment, safety concerns limit their use, due to the corrosive nature of concentrated solutions. This study demonstrates that local, electrochemical generation of iron is a viable alternative to the use of iron salts. Three laboratory systems with anaerobic membrane processes were set up to treat real wastewater; two systems used the production of either insitu or ex-situ electrochemical iron (as Fe2+ and Fe2+(Fe3+)2O4, respectively), while the other system served as a control. These systems were operated for over one year to assess the impact of electrochemically produced iron on system performance. The results showed that dosing of electrochemical iron significantly reduced sulfide concentration in effluent and hydrogen sulfide content in biogas, and mitigated organics-based membrane fouling, all of which are critical issues inherently related to sustainability of anaerobic wastewater t...reatment. The electrochemical iron strategy can generate multiple benefits for wastewater management including increased removal efficiencies for total and volatile suspended solids, chemical oxygen demand and phosphorus. The rate of methane production also increased with electrochemically produced iron. Economic analysis revealed the viability of electrochemical iron with total cost reduced by one quarter to a third compared with using FeCl3. These benefits indicate that electrochemical iron dosing can greatly enhance the overall operation and performance of anaerobic membrane processes, and this particularly facilitates wastewater management in a decentralized scenario.
Кључне речи:
Electrochemical iron dosing / Sulfide control / Anaerobic wastewater treatment / Membrane fouling controlИзвор:
Water Research, 2022, 225, 119202-Издавач:
- Elsevier
Финансирање / пројекти:
- Centre of Excellence for NEOM Research at King Abdullah University of Science and Technology (KAUST)
- China Scholarship Council (CSC)
- Australian Research Council Linkage Project - Special Research Initiative: PFAS Remediation Research Program (SR180100040)
- Australian Research Council Laureate Fellowship FL170100086
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Hu, Zhetai AU - Zheng, Min AU - Hu, Shihu AU - Hong, Pei-Ying AU - Zhang, Xueqing AU - Prodanović, Veljko AU - Zhang, Kefeng AU - Pikaar, Ilje AU - Ye, Liu AU - Deletic, Ana AU - Yuan, Zhiguo PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2798 AB - Although iron salts such as iron(III) chloride (FeCl3) have widespread application in wastewater treatment, safety concerns limit their use, due to the corrosive nature of concentrated solutions. This study demonstrates that local, electrochemical generation of iron is a viable alternative to the use of iron salts. Three laboratory systems with anaerobic membrane processes were set up to treat real wastewater; two systems used the production of either insitu or ex-situ electrochemical iron (as Fe2+ and Fe2+(Fe3+)2O4, respectively), while the other system served as a control. These systems were operated for over one year to assess the impact of electrochemically produced iron on system performance. The results showed that dosing of electrochemical iron significantly reduced sulfide concentration in effluent and hydrogen sulfide content in biogas, and mitigated organics-based membrane fouling, all of which are critical issues inherently related to sustainability of anaerobic wastewater treatment. The electrochemical iron strategy can generate multiple benefits for wastewater management including increased removal efficiencies for total and volatile suspended solids, chemical oxygen demand and phosphorus. The rate of methane production also increased with electrochemically produced iron. Economic analysis revealed the viability of electrochemical iron with total cost reduced by one quarter to a third compared with using FeCl3. These benefits indicate that electrochemical iron dosing can greatly enhance the overall operation and performance of anaerobic membrane processes, and this particularly facilitates wastewater management in a decentralized scenario. PB - Elsevier T2 - Water Research T1 - Electrochemical iron production to enhance anaerobic membrane treatment of wastewater SP - 119202 VL - 225 DO - 10.1016/j.watres.2022.119202 ER -
@article{ author = "Hu, Zhetai and Zheng, Min and Hu, Shihu and Hong, Pei-Ying and Zhang, Xueqing and Prodanović, Veljko and Zhang, Kefeng and Pikaar, Ilje and Ye, Liu and Deletic, Ana and Yuan, Zhiguo", year = "2022", abstract = "Although iron salts such as iron(III) chloride (FeCl3) have widespread application in wastewater treatment, safety concerns limit their use, due to the corrosive nature of concentrated solutions. This study demonstrates that local, electrochemical generation of iron is a viable alternative to the use of iron salts. Three laboratory systems with anaerobic membrane processes were set up to treat real wastewater; two systems used the production of either insitu or ex-situ electrochemical iron (as Fe2+ and Fe2+(Fe3+)2O4, respectively), while the other system served as a control. These systems were operated for over one year to assess the impact of electrochemically produced iron on system performance. The results showed that dosing of electrochemical iron significantly reduced sulfide concentration in effluent and hydrogen sulfide content in biogas, and mitigated organics-based membrane fouling, all of which are critical issues inherently related to sustainability of anaerobic wastewater treatment. The electrochemical iron strategy can generate multiple benefits for wastewater management including increased removal efficiencies for total and volatile suspended solids, chemical oxygen demand and phosphorus. The rate of methane production also increased with electrochemically produced iron. Economic analysis revealed the viability of electrochemical iron with total cost reduced by one quarter to a third compared with using FeCl3. These benefits indicate that electrochemical iron dosing can greatly enhance the overall operation and performance of anaerobic membrane processes, and this particularly facilitates wastewater management in a decentralized scenario.", publisher = "Elsevier", journal = "Water Research", title = "Electrochemical iron production to enhance anaerobic membrane treatment of wastewater", pages = "119202", volume = "225", doi = "10.1016/j.watres.2022.119202" }
Hu, Z., Zheng, M., Hu, S., Hong, P., Zhang, X., Prodanović, V., Zhang, K., Pikaar, I., Ye, L., Deletic, A.,& Yuan, Z.. (2022). Electrochemical iron production to enhance anaerobic membrane treatment of wastewater. in Water Research Elsevier., 225, 119202. https://doi.org/10.1016/j.watres.2022.119202
Hu Z, Zheng M, Hu S, Hong P, Zhang X, Prodanović V, Zhang K, Pikaar I, Ye L, Deletic A, Yuan Z. Electrochemical iron production to enhance anaerobic membrane treatment of wastewater. in Water Research. 2022;225:119202. doi:10.1016/j.watres.2022.119202 .
Hu, Zhetai, Zheng, Min, Hu, Shihu, Hong, Pei-Ying, Zhang, Xueqing, Prodanović, Veljko, Zhang, Kefeng, Pikaar, Ilje, Ye, Liu, Deletic, Ana, Yuan, Zhiguo, "Electrochemical iron production to enhance anaerobic membrane treatment of wastewater" in Water Research, 225 (2022):119202, https://doi.org/10.1016/j.watres.2022.119202 . .