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The multistage anoxic/oxic (AO) process is widely known for its effectiveness in wastewater treatment, serving as a core technology in numerous wastewater treatment facilities. Its application in the expansion project of the sewage treatment plant in Dongguan City is particularly noteworthy and merits further research into its performance. To validate its reliability, we conducted a monitoring experiment spanning over 200 days. The results revealed that under stringent operational conditions, the plant demonstrated significant stability in ensuring the effluent quality meets grade A standards. Additionally, its removal efficiency for various pollutants exceeds 90%, particularly outstanding in nitrogen and phosphorus reduction, even when the total phosphorus in the influent exceeded the standard by 2.6 times, the effluent remained stable. These compelling pieces of evidence highlight the superiority of the multistage AO process, positioning it as the preferred technology for widespread adoption in the expansion of wastewater treatment plants. This study can provide valuable insights for the construction of other sewage treatment plants.
Czasopismo
Rocznik
Tom
Strony
31--39
Opis fizyczny
Bibliogr. 14 poz., rys., tab.
Twórcy
autor
- Mizuda Waste Management, Huzhou City, Zhejiang Province, China, 313000
- Fujian Normal University, Fuzhou City, Fujian Province, China, 350007
autor
- Mizuda Waste Management, Huzhou City, Zhejiang Province, China, 313000
autor
- Mizuda Waste Management, Huzhou City, Zhejiang Province, China, 313000
autor
- Mizuda Waste Management, Huzhou City, Zhejiang Province, China, 313000
autor
- Mizuda Waste Management, Huzhou City, Zhejiang Province, China, 313000
Bibliografia
- [1] ZHOU Q., SUN H., JIA L., WU W., WANG J., Simultaneous biological removal of nitrogen and phosphorus from secondary effluent of wastewater treatment plants by advanced treatment: A review, Chemosphere, 2022, 296, 134054–134070. DOI: 10.1016/j.chemosphere.2022.134054.
- [2] GONZALEZ-CAMEJO J., JIMENEZ-BENITEZ A., RUANO M.V., ROBLES A., BARAT R., FERRER J., Optimising an outdoor membrane photobioreactor for tertiary sewage treatment, J. Environ. Manage., 2019, 245, 76–85. DOI: 10.1016/j.jenvman.2019.05.010.
- [3] ABINANDAN S., SHANTHAKUMAR S., Challenges and opportunities in application of microalgae (Chlorophyta) for wastewater treatment: a review, Renew. Sust. Energ. Rev., 2015, 52, 123–132. DOI: 10.1016/j.rser.2015.07.086.
- [4] XU C., SONG Q., DAI J., HUANG H., INAMORI R., INAMORI Y., XU K., SUGIURA N., Analysis of raw domestic wastewater quality and evaluation of biological treatment performance in China, Japanese J. Water Treat. Biol., 2011, 147 (2), 51–58. DOI: 10.2521/jswtb.47.51.
- [5] LU J.Y., WANG X.M., LIU H.Q., YU H.Q., LI W.W., Optimizing operation of municipal wastewater treatment plants in China: the remaining barriers and future implications, Environ. Int., 2019, 129, 73–278. DOI: 10.1016/j.envint.2019.05.057.
- [6] GAO G., WANG S., PENG Y., MIAO Z., Biological nutrient removal by applying modified four step-feed technology to treat weak wastewater, Bioresour. Technol., 2013, 128 (1), 604–611, DOI: 10.1016 /j.biortech.2012.09.078.
- [7] CHEN H., LI A., WANG Q., CUI D., CUI C., MA F., Nitrogen removal performance and microbial com-munity of an enhanced multistage A/O biofilm reactor treating low-strength domestic wastewater, Biodegr., 2018, 29, 285–299. DOI: 10.1007/s10532-018-9829-x.
- [8] XIA Y., BAI J., YANG T., YAN X.L., SONG H.L., Enhanced removal of nitrogen and phosphorus from expressway service area wastewater using step-feed multi-stage anoxic/oxic membrane bioreactor optimization process, J. Water Proc. Eng., 2025, 69, 106769, DOI: 10.1016/j.jwpe.2024.106769.
- [9] ZHOU X., ZHANG Q., SUN H., ZHAO Q., Efficient nitrogen removal from synthetic domestic wastewater in a novel step-feed three-stage integrated anoxic/oxic biological aerated filter process through optimizing influent flow distribution ratio, J. Environ. Manage., 2019, 231, 1277–1282. DOI: 10.1016 /j.jenvman.2018.11.014.
- [10] CHENG S., LIU J., LIU H., HOU R., WANG J., FENG Z., YUAN R. LI C., ZHOU B., CHEN H., Performance and bacterial community analysis of multi-stage A/O biofilm system for nitrogen removal of rural domestic sewage, J. Water Proc. Eng., 2023, 56, 104485. DOI:10.1016/j.jwpe.2023.104485.
- [11] GONG B., ZHANG K., SU M., JANG J., PENG C., WANG Y., Efficient nitrogen and phosphorus removal performance and microbial community in a pilot-scale anaerobic/anoxic/oxic (AOA) system with long sludge retention time: Significant roles of endogenous carbon source, Environ. Res., 2024, 263, 120164. DOI: 10.1016/j.envres.2024.120164.
- [12] WANG F., LI J., BIAN D., NIE Z., AI S., TIAN X., WANG H., Effect of hydraulic residence time and inlet flow distribution ratio on the pollutant removal of low‐temperature municipal wastewater in multi-stage AO process, Water Environ. J., 2020, 34 (S1), 742–752. DOI: 10.1111/wej.12574.
- [13] CARDINALI-REZENDE J., ALVES DE SOUZA JÚDICE W., SANCHEZ M.B., ARAÚJO W.L., Total phosphorus con-tents currently found in the raw wastewater. Problems and technical solutions for its removal in full-scale wastewater treatment plants, Resour., Conserv. Recycl., 2023, 196, 107026. DOI:10.1016/j.resconrec.2023.107026.
- [14] WOJCIECHOWSKA E., GAJEWSKA M., OSTOJSKI A., Reliability of nitrogen removal processes in multi-stage treatment wetlands receiving high-strength wastewater, Ecol. Eng., 2017, 98, 365–371. DOI: 10.1016/j.ecoleng.2016.07.006.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fed89c4c-7830-4fe6-a412-416a573c2273
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