Impact of electrochemically generated iron on the performance of an anaerobic wastewater treatment process
Autori
Hu, ZhetaiHu, Shihu
Hong, Pei-Ying
Zhang, Xueqin
Prodanović, Veljko
zhang, Kefeng
Ye, Liu
Deletic, Ana
Yuan, Zhiguo
Zheng, Min
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Anaerobic treatment of domestic wastewater has the advantages of lower biomass yield, lower energy demand and higher energy recover over the conventional aerobic treatment process. However, the anaerobic process has the inherent issues of excessive phosphate and sulfide in effluent and superfluous H2S and CO2 in biogas. An electrochemical method allowing for in-situ generation of Fe2+ in the anode and hydroxide ion (OH−) and H2 in the cathode was proposed to overcome the challenges simultaneously. The effect of electrochemically generated iron (e‑iron) on the performance of anaerobic wastewater treatment process was explored with four different dosages in this work. The results showed that compared to control, the experimental system displayed an increase of 13.4–28.4 % in COD removal efficiency, 12.0–21.3 % in CH4 production rate, 79.8–98.5 % in dissolved sulfide reduction, 26.0–96.0 % in phosphate removal efficiency, depending on the e‑iron dosage between 40 and 200 mg Fe/L. Dosing o...f the e‑iron significantly upgraded the quality of produced biogas, showing a much lower CO2 and H2S contents in biogas in experimental reactor than that in control reactor. The results thus demonstrated that e‑iron can significantly improve the performance of anaerobic wastewater treatment process, bringing multiple benefits with the increase of its dosage regarding effluent and biogas quality.
Ključne reči:
Electrochemical iron production / Anaerobic wastewater treatment / Sulfide control / Phosphate removal / Biogas upgradingIzvor:
Science of The Total Environment, 2023, 875, 162628-Izdavač:
- Elsevier
Finansiranje / projekti:
- Centre of Excellence for NEOM Research at King Abdullah University of Science and Technology (KAUST)
- Advance Queensland Industry Research Fellowship
- China Scholarship Council (CSC)
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Hu, Zhetai AU - Hu, Shihu AU - Hong, Pei-Ying AU - Zhang, Xueqin AU - Prodanović, Veljko AU - zhang, Kefeng AU - Ye, Liu AU - Deletic, Ana AU - Yuan, Zhiguo AU - Zheng, Min PY - 2023 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2885 AB - Anaerobic treatment of domestic wastewater has the advantages of lower biomass yield, lower energy demand and higher energy recover over the conventional aerobic treatment process. However, the anaerobic process has the inherent issues of excessive phosphate and sulfide in effluent and superfluous H2S and CO2 in biogas. An electrochemical method allowing for in-situ generation of Fe2+ in the anode and hydroxide ion (OH−) and H2 in the cathode was proposed to overcome the challenges simultaneously. The effect of electrochemically generated iron (e‑iron) on the performance of anaerobic wastewater treatment process was explored with four different dosages in this work. The results showed that compared to control, the experimental system displayed an increase of 13.4–28.4 % in COD removal efficiency, 12.0–21.3 % in CH4 production rate, 79.8–98.5 % in dissolved sulfide reduction, 26.0–96.0 % in phosphate removal efficiency, depending on the e‑iron dosage between 40 and 200 mg Fe/L. Dosing of the e‑iron significantly upgraded the quality of produced biogas, showing a much lower CO2 and H2S contents in biogas in experimental reactor than that in control reactor. The results thus demonstrated that e‑iron can significantly improve the performance of anaerobic wastewater treatment process, bringing multiple benefits with the increase of its dosage regarding effluent and biogas quality. PB - Elsevier T2 - Science of The Total Environment T1 - Impact of electrochemically generated iron on the performance of an anaerobic wastewater treatment process SP - 162628 VL - 875 DO - 10.1016/j.scitotenv.2023.162628 ER -
@article{ author = "Hu, Zhetai and Hu, Shihu and Hong, Pei-Ying and Zhang, Xueqin and Prodanović, Veljko and zhang, Kefeng and Ye, Liu and Deletic, Ana and Yuan, Zhiguo and Zheng, Min", year = "2023", abstract = "Anaerobic treatment of domestic wastewater has the advantages of lower biomass yield, lower energy demand and higher energy recover over the conventional aerobic treatment process. However, the anaerobic process has the inherent issues of excessive phosphate and sulfide in effluent and superfluous H2S and CO2 in biogas. An electrochemical method allowing for in-situ generation of Fe2+ in the anode and hydroxide ion (OH−) and H2 in the cathode was proposed to overcome the challenges simultaneously. The effect of electrochemically generated iron (e‑iron) on the performance of anaerobic wastewater treatment process was explored with four different dosages in this work. The results showed that compared to control, the experimental system displayed an increase of 13.4–28.4 % in COD removal efficiency, 12.0–21.3 % in CH4 production rate, 79.8–98.5 % in dissolved sulfide reduction, 26.0–96.0 % in phosphate removal efficiency, depending on the e‑iron dosage between 40 and 200 mg Fe/L. Dosing of the e‑iron significantly upgraded the quality of produced biogas, showing a much lower CO2 and H2S contents in biogas in experimental reactor than that in control reactor. The results thus demonstrated that e‑iron can significantly improve the performance of anaerobic wastewater treatment process, bringing multiple benefits with the increase of its dosage regarding effluent and biogas quality.", publisher = "Elsevier", journal = "Science of The Total Environment", title = "Impact of electrochemically generated iron on the performance of an anaerobic wastewater treatment process", pages = "162628", volume = "875", doi = "10.1016/j.scitotenv.2023.162628" }
Hu, Z., Hu, S., Hong, P., Zhang, X., Prodanović, V., zhang, K., Ye, L., Deletic, A., Yuan, Z.,& Zheng, M.. (2023). Impact of electrochemically generated iron on the performance of an anaerobic wastewater treatment process. in Science of The Total Environment Elsevier., 875, 162628. https://doi.org/10.1016/j.scitotenv.2023.162628
Hu Z, Hu S, Hong P, Zhang X, Prodanović V, zhang K, Ye L, Deletic A, Yuan Z, Zheng M. Impact of electrochemically generated iron on the performance of an anaerobic wastewater treatment process. in Science of The Total Environment. 2023;875:162628. doi:10.1016/j.scitotenv.2023.162628 .
Hu, Zhetai, Hu, Shihu, Hong, Pei-Ying, Zhang, Xueqin, Prodanović, Veljko, zhang, Kefeng, Ye, Liu, Deletic, Ana, Yuan, Zhiguo, Zheng, Min, "Impact of electrochemically generated iron on the performance of an anaerobic wastewater treatment process" in Science of The Total Environment, 875 (2023):162628, https://doi.org/10.1016/j.scitotenv.2023.162628 . .