Optimization of Aeration for Improving Performance of Hospital Wastewater Treatment Plant

Anthropogenic Pollution

دوره 7، شماره 1، مرداد 2023، صفحه 32-42   

نوع مقاله: ORIGINAL RESEARCH PAPER

شناسه دیجیتال (DOI): 10.22034/ap.2023.1989523.1158

نویسندگان

Zahra Hezarian^{* 1}؛ ehsan derikvand²؛ afshin takdastan³

¹School of Health, Abuzar Hospital, Ahvaz Jundishapur University Of Medical Sciences, Ahvaz,Iran

²Assistant Professor, School of Water Engineering, Islamic Azad University, Shushtar branch

³Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; cEnvironmental Technologies Research Center

چکیده

The present descriptive cross-sectional study was conducted by altering the type of blowers in the wastewater treatment system of Abuzar hospital in Ahvaz during the first and second quarters (6 months). In every month, inlet raw wastewater, aeration tank one, and effluent were sampled in one week (Saturday-Friday), which resulted in harvesting a total of 42 samples. Then, they were assessed based on the techniques provided in the book entitled "standard methods for evaluating water and wastewater", and data were evaluated through employing statistical analyses. The average removal efficiency of total and organic phosphorus, phosphate, and ammonia in the effluent was respectively determined 46.47, 34.45, 18.14, and 68.49 before starting up a new aeration system, which reached 69.36, 76.21, 65.09, and 96.53 during the second period, respectively. In addition, the average concentration of nitrate varied from 21.79 to 44.11 mg/l, while that of nitrite changed from 0.04 to 0.03 mg/l. Further, an increase (39.19 to 67.19%) was observed in the average nitrogen removal efficiency in effluent. Based on the results, EAAS process was efficient in eliminating nitrogen and phosphorus by using the helicoidal pumps of aeration blowers and regulating aeration rate. Thus, aeration plays an effective role in activated sludge systems despite the microorganism diversity in aeration tank sludge. The produced effluent was consistent with Iran national standards in terms of the parameters under study, especially phosphorus and nitrogen, and can be discharged into the environment.

کلیدواژه‌ها

Activated sludge؛ Extended aeration؛ Nitrogen؛ Phosphorus؛ Environment

مراجع

Ahari, S. M., Yangejeh, R. J., Mahvi, A. H., Shahamat, Y. D., & Takdastane A. (2019). A new method for the removal of ammonium from drinking water using hybrid method of modified zeolites/catalytic ozonation. Desalin Water Treat, 170, 148-57.

Ai, S., Dong, S., Nie, Z., Zhu, S., Ren, Q., & Bian, D. (2020). Study on aeration optimization and sewage treatment efficiency of a novel micro-pressure swirl reactor (MPSR). Water, 12(3), 890.

Amini Fard, F., Jalilzadeh Yengejeh, R., & Ghaeni, M. (2019). Efficiency of microalgae scenedesmus in the removal of nitrogen from municipal wastewaters. Iranian Journal of Toxicology, 13(2), 1-6.

Bahmanpour, H., Awhadi, S., Enjili, J., Hosseini, SM. Optimizing Absorbent Bentonite and Evaluation of Contaminants Removal from Petrochemical Industries Wastewater, International Journal of Constructive Research in Civil Engineering (IJCRCE) Volume 3, Issue 2, 2017, PP 34-42

Bakhshizadeh, A., Khayat, N., & Horpibulsuk, S. (2022). Surface stabilization of clay using sodium alginate. Case Studies in Construction Materials, 16, e01006.

Beidaghdar M., Fataei, E., Khanizadeh,  B., Imani A.A. (2022) Feasibility study of using UV/H2O2/O3 advanced oxidation in phenol removal from petrochemical wastewater, Journal of Applied Research in Water and Wastewater, 9(1):40-45.

Bell, K. Y., & Abel, S. (2011). Optimization of WWTP aeration process upgrades for energy efficiency. Water practice and Technology, 6(2), wpt2011024.

Bitton, G. (2005). Wastewater microbiology. John Wiley & Sons.

Chi, Y., Ren, T., Shi, X., Jin, X., & Jin, P. (2021). Mechanism of nutrient removal enhancement in low carbon/nitrogen wastewater by a novel high-frequency micro-aeration/anoxic (HMOA) mode. Chemosphere, 263, 128003.

Crites, R., & Tchobanoglous, G. (1998). Small and decentralized wastewater management systems (No. 628.3 C934s). Mc Graw Hill,.

Ebadi, M., Asareh, A., Jalilzadeh Yengejeh, R., & Hedayat, N. (2021). Investigation of electro-coagulation process for phosphate and nitrate removal from sugarcane wastewaters. Iranian Journal of Toxicology, 15(1), 19-26.

Esmaeilzadeh, H., Fataei, E., & Saadati, H. (2020). NH3 removal from sour water by clinoptilolite zeolite: a case study of tabriz refinery. Chemical Methodologies, 4(6), 754-73.

Farsani, M. H., Yengejeh, R. J., Mirzahosseini, A. H., Monavari, M., Hassani, A. H., & Mengelizadeh, N. (2022). Effective leachate treatment by a pilot-scale submerged electro-membrane bioreactor. Environmental Science and Pollution Research, 29, 9218–9231.

Fataei, E. (2017). Soil carbon, nitrogen and phosphorus pools under exotic tree plantations in the degraded grasslands of Iran. Agricultural & Biological Research, 33(2), 113-127.

Fataei, E., Torabian, A., Hosseinzadeh Kalkhoran, M., Alighadri, M., & Hosseinzadeh, S. (2013). Selection of Optimum Municipal Wastewater Treatment Process Using AHP (Case Study: Ardebil, Tabriz, and Uremia). Journal of Health, 4(3), 260-272.

Fekri, R., Mirbagheri, S. A., Fataei, E., Ebrahimzadeh-Rajaei, G., & Taghavi, L. (2021). Organic compound removal from textile wastewater by photocatalytic and sonocatalytic processes in the presence of copper oxide nanoparticles. Anthropogenic Pollution, 5(2), 93-103.

Feng, X. C., Bao, X., Che, L., & Wu, Q. L. (2021). Enhance biological nitrogen and phosphorus removal in wastewater treatment process by adding food waste fermentation liquid as external carbon source. Biochemical Engineering Journal, 165, 107811.

Gao, Y., Zhang, W., Gao, B., Jia, W., Miao, A., Xiao, L., & Yang, L. (2018). Highly efficient removal of nitrogen and phosphorus in an electrolysis-integrated horizontal subsurface-flow constructed wetland amended with biochar. Water Research, 139, 301-310.

Ghalambaz, M., Yengejeh, R. J., & Davami, A. H. (2021). Building energy optimization using grey wolf optimizer (GWO). Case Studies in Thermal Engineering, 27, 101250

Ghanbari Tapeh, N., Fataei, E., Naji, A.,  Imani, A.A., Nasehi F. (2022) Municipal Wastewater Efluent as a Source of Microplastic Pollution Crisis in the Qarasu River Water, Ardabil Province, Iran.Health in Emergencies & Disasters Quarterly,7(3)31-38.

Heidari Farsani, M., Jalilzadeh Yengejeh, R., Hajiseyed Mirzahosseini, A., Monavari, M., Hassani, A. H., & Mengelizadeh, N. (2021). Study of the performance of bench-scale electro-membranes bioreactor in leachate treatment. Advances in Environmental Technology, 7(3), 209-220.

Hosseinzadeh, H., & Parvaneh, V. (2020). Meir–Keeler type contractive mappings in modular and partial modular metric spaces. Asian-European Journal of Mathematics, 13(05), 2050087.

Jafari, H., Hosseinzadeh, H., Gholami, M., & Ganji, D. (2017). Application of homotopy perturbation method for heat and mass transfer in the two-dimensional unsteady flow between parallel plates. International Journal of Applied and Computational Mathematics, 3, 1677-1688.

Karimipour, Z., Jalilzadeh Yengejeh, R., Haghighatzadeh, A., Mohammadi, M. K., & Mohammadi Rouzbehani, M. (2021). UV-Induced Photodegradation of 2, 4, 6-Trichlorophenol Using Ag–Fe 2 O 3–CeO 2 Photocatalysts. Journal of Inorganic and Organometallic Polymers and Materials, 31, 1143-1152.

Kazemi Noredinvand, B., Takdastan, A., & Jalilzadeh Yengejeh, R. (2016). Removal of organic matter from drinking water by single and dual media filtration: a comparative pilot study. Desalination and Water Treatment, 57(44), 20792-20799.

Kusiak, A., Zeng, Y., & Zhang, Z. (2013). Modeling and analysis of pumps in a wastewater treatment plant: A data-mining approach. Engineering Applications of Artificial Intelligence, 26(7), 1643-1651.

Li, B., Jing, F., Wu, D., Xiao, B., & Hu, Z. (2021). Simultaneous removal of nitrogen and phosphorus by a novel aerobic denitrifying phosphorus-accumulating bacterium, Pseudomonas stutzeri ADP-19. Bioresource Technology, 321, 124445.

Mahdavi, M., Mahvi, A. H., Salehi, M., Sadanid, M., Biglari, H., & Tashauoe, H. R. (2020). Wastewater reuse from hemodialysis section by combination of coagulation and Ultrafiltration processes: Case study in saveh-iran hospital. Desalin Water Treat, 193, 274-83.

Masoumi, A., & Yengejeh, R. J. (2020). Study of chemical wastes in the Iranian petroleum industry and feasibility of hazardous waste disposal. Journal of Environmental Health Science and Engineering, 18(2), 1037-1044.

Matteus, F. A. (2000). Water management and conservation in arid climates. Technomic Publishing, USA, 2(1), 80-94.

McCarty, P. L., Bae, J., & Kim, J. (2011). Domestic wastewater treatment as a net energy producer–can this be achieved?.

Mehrdoost, A., Yengejeh, R. J., Mohammadi, M. K., Haghighatzadeh, A., & Babaei, A. A. (2022). Adsorption removal and photocatalytic degradation of azithromycin from aqueous solution using PAC/Fe/Ag/Zn nanocomposite. Environmental Science and Pollution Research, 29(22), 33514-33527.

Mohammadi, M., & Fataei, E. (2019). Comparative life cycle assessment of municipal wastewater treatment systems: lagoon and activated sludge. Caspian Journal of Environmental Sciences, 17(4), 327-336.

Nikpour, B., Jalilzadeh Yengejeh, R., Takdastan, A., Hassani, A. H., & Zazouli, M. A. (2020). The investigation of biological removal of nitrogen and phosphorous from domestic wastewater by inserting anaerobic/anoxic holding tank in the return sludge line of MLE-OSA modified system. Journal of environmental health science and engineering, 18, 1-10.

Noori Mashiran, M., Fataei F.(2015) Feasibility Study of Urban Raw Wastewater for Agricultural Uses (Case Study: Meshkinshahr, Iran), Advances in Environmental Biology, 9(2):51-59.

Panyasit, K. ., Singhavara, M. ., & Sakkarin, N. . (2022). Acceptance of Commercial Cricket Cultivation Technology in Nong Khai Province, Thailand. International Journal of Innovative Research and Scientific Studies, 5(3), 226–235. https://doi.org/10.53894/ijirss.v5i3.657

Pirsaheb, M., Mohamadi, M., Mansouri, A. M., Zinatizadeh, A. A. L., Sumathi, S., & Sharafi, K. (2015). Process modeling and optimization of biological removal of carbon, nitrogen and phosphorus from hospital wastewater in a continuous feeding & intermittent discharge (CFID) bioreactor. Korean journal of chemical engineering, 32, 1340-1353.

Pittoors, E., Guo, Y., & WH Van Hulle, S. (2014). Modeling dissolved oxygen concentration for optimizing aeration systems and reducing oxygen consumption in activated sludge processes: a review. Chemical Engineering Communications, 201(8), 983-1002.

Shahandeh, N., & Jalilzadeh Yengejeh, R. (2018). Efficiency of SBR process with a six sequence aerobic-anaerobic cycle for phosphorus and organic material removal from municipal wastewater. Iranian Journal of Toxicology, 12(2), 27-32.

Smarzewska, S., & Morawska, K. (2021). Wastewater treatment technologies. In Handbook of Advanced Approaches Towards Pollution Prevention and Control (pp. 3-32). Elsevier.

Smarzewska, S., & Morawska, K. (2021). Wastewater treatment technologies. In Handbook of Advanced Approaches Towards Pollution Prevention and Control (pp. 3-32). Elsevier.

Tabari, M. R. R., Sabzalipour, S., Peyghambarzadeh, S. M., & Jalilzadeh, R. (2021). Dispersion of volatile organic compounds in the vicinity of petroleum products storage tank. Environmental Engineering & Management Journal (EEMJ), 20(7).

Verijkazemi, K., & Yengejeh, R. J. (2022). Simulation of an Industrial Wastewater Treatment Plant by Up-flow Anaerobic Fixed Bed Bioreactor Based on an Artificial Neural Network. Avicenna Journal of Environmental Health Engineering, 9(1), 1-8.

Wu, H., Fan, J., Zhang, J., Ngo, H. H., Guo, W., Hu, Z., & Lv, J. (2016). Optimization of organics and nitrogen removal in intermittently aerated vertical flow constructed wetlands: effects of aeration time and aeration rate. International Biodeterioration & Biodegradation, 113, 139-145.

Yousefi, Z., Hoseini, S. M., Mohamadpur Tahamtan, R. A., & Zazouli, M. A. (2013). Performance evaluation of artificial wetland subsurface with horizontal flow in wastewater treatment. Journal of Mazandaran University of Medical Sciences, 23(99), 12-25.

Zangeneh, A., Sabzalipour, S., Takdastan, A., Jalilzadeh Yengejeh, R., & Abdullatif Khafaie, M. (2021). Mass transfer coefficient of ammonia in the air stripping process for municipal wastewater: An experimental study. Advances in Environmental Technology, 7(4), 289-304.

Zangeneh, A., Sabzalipour, S., Takdatsan, A., Yengejeh, R. J., & Khafaie, M. A. (2021). Ammonia removal form municipal wastewater by air stripping process: An experimental study. South African Journal of Chemical Engineering, 36, 134-141.

Zhang, Y., Wei, D., Morrison, L., Ge, Z., Zhan, X., & Li, R. (2019). Nutrient removal through pyrrhotite autotrophic denitrification: Implications for eutrophication control. Science of the Total Environment, 662, 287-296.