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Torre A, Vázquez-Rowe I, Parodi E, Kahhat R. A multi-criteria decision framework for circular wastewater systems in emerging megacities of the Global South. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169085. [PMID: 38056636 DOI: 10.1016/j.scitotenv.2023.169085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 11/22/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
Lima faces increasing water stress due to demographic growth, climate change and outdated water management infrastructure. Moreover, its highly centralized wastewater management system is currently unable to recover water or other resources. Hence, the primary aim of this study is to identify suitable wastewater treatment alternatives for both eutrophication mitigation and indirect potable reuse (IPR). For eutrophication mitigation, we examined MLE, Bardenpho, Step-feed, HF-MBR, and FS-MBR. For IPR, we considered secondary treatment+UF + RO + AOP or MBR + RO + AOP. These alternatives form part of a WWTP network at a district level, aiding Lima's pursuit of a circular economy approach. This perspective allows reducing environmental impacts through resource recovery, making the system more resilient to disasters and future water shortages. The methods used to assess these scenarios were Life Cycle Assessment for the environmental dimension; Life Cycle Costing for the economic perspective; and Multi-Criteria Decision Analysis to integrate both the quantitative tools aforementioned and qualitative criteria for social and techno-operational dimensions, which combined, strengthen the decision-making process. The decision-making steered towards Bardenpho for eutrophication abatement when environmental and economic criteria were prioritized or when the four criteria were equally weighted, while HF-MBR was the preferred option when techno-operational and social aspects were emphasized. In this scenario, global warming (GW) impacts ranged from 0.23 to 0.27 kg CO2eq, eutrophication mitigation varied from 6.44 to 7.29 g PO4- equivalent, and costs ranged between 0.12 and 0.17 €/m3. Conversely, HF-MBR + RO + AOP showed the best performance when IPR was sought from the outset. In the IPR scenario, GW impacts were significantly higher, at 0.46-0.51 kg CO2eq, eutrophication abatement was above 98 % and costs increased to ca. 0.44 €/m3.
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Affiliation(s)
- Andre Torre
- Peruvian LCA & Industrial Ecology Network (PELCAN), Department of Engineering, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, San Miguel 15088, Lima, Peru
| | - Ian Vázquez-Rowe
- Peruvian LCA & Industrial Ecology Network (PELCAN), Department of Engineering, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, San Miguel 15088, Lima, Peru.
| | - Eduardo Parodi
- Peruvian LCA & Industrial Ecology Network (PELCAN), Department of Engineering, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, San Miguel 15088, Lima, Peru
| | - Ramzy Kahhat
- Peruvian LCA & Industrial Ecology Network (PELCAN), Department of Engineering, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, San Miguel 15088, Lima, Peru
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Efficient organic carbon utilization for combined nutrient removal and biogas production in hybrid biofilm activated sludge system. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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Ahmed SF, Mehejabin F, Momtahin A, Tasannum N, Faria NT, Mofijur M, Hoang AT, Vo DVN, Mahlia TMI. Strategies to improve membrane performance in wastewater treatment. CHEMOSPHERE 2022; 306:135527. [PMID: 35780994 DOI: 10.1016/j.chemosphere.2022.135527] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/14/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Membrane technology has rapidly gained popularity in wastewater treatment due to its cost-effectiveness, environmentally friendly tools, and elevated productivity. Although membrane performance in wastewater treatment has been reviewed in several past studies, the key techniques for improving membrane performance, as well as their challenges, and solutions associated with the membrane process, were not sufficiently highlighted in those studies. Also, very few studies have addressed hybrid techniques to improve membrane performance. The present review aims to fill those gaps and achieve public health benefits through safe water processing. Despite its higher cost, membrane performance can result in a 36% reduction in flux degradation. The issue with fouling has been identified as one of the key challenges of membrane technology. Chemical cleaning is quite effective in removing accumulated foulant. Fouling mitigation techniques have also been shown to have a positive effect on membrane photobioreactors that handle wastewater effluent, resulting in a 50% and 60% reduction in fouling rates for backwash and nitrogen bubble scouring techniques. Membrane hybrid approaches such as hybrid forward-reverse osmosis show promise in removing high concentrations of phosphorus, ammonium, and salt from wastewater. The incorporation of the forward osmosis process can reject 99% of phosphorus and 97% of ammonium, and the reverse osmosis approach can achieve a 99% salt rejection rate. The control strategies for membrane fouling have not been successfully optimized yet and more research is needed to achieve a realistic, long-term direct membrane filtering operation.
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Affiliation(s)
- Shams Forruque Ahmed
- Science and Math Program, Asian University for Women, Chattogram 4000, Bangladesh.
| | - Fatema Mehejabin
- Science and Math Program, Asian University for Women, Chattogram 4000, Bangladesh
| | - Adiba Momtahin
- Science and Math Program, Asian University for Women, Chattogram 4000, Bangladesh
| | - Nuzaba Tasannum
- Science and Math Program, Asian University for Women, Chattogram 4000, Bangladesh
| | - Nishat Tasnim Faria
- Science and Math Program, Asian University for Women, Chattogram 4000, Bangladesh
| | - M Mofijur
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia; Mechanical Engineering Department, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia
| | - Anh Tuan Hoang
- Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam.
| | - Dai-Viet N Vo
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Penang, Malaysia; Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam.
| | - T M I Mahlia
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia; Department of Mechanical Engineering, College of Engineering, Universiti Tenaga Nasional, Selangor, Malaysia
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Insel G, Ozyildiz G, Okutman-Tas D, Guven D, Zengin GE, Pala-Ozkok I, Sagir Kurt E, Atli E, Artan N, Takács I, Cokgor E. A comprehensive evaluation of process kinetics: A plant-wide approach for nutrient removal and biogas production. WATER RESEARCH 2022; 217:118410. [PMID: 35447570 DOI: 10.1016/j.watres.2022.118410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/28/2022] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
The present study investigated the deviations of operational parameters of a large-scale wastewater treatment plant (WWTP) from design basis through combining dedicated batch experiments with full-scale dynamic modeling results. The long-term process performance of a full-scale biological nutrient removal (BNR) plant equipped with anaerobic sludge digestion system was monitored to evaluate the process kinetics of both carbon and nutrient removal and anaerobic sludge digestion. In this respect, plant-specific characterization; chemical oxygen demand (COD) fractionation, batch kinetic studies and sludge settling velocity tests were performed together with plant-wide SUMO model simulation. Results showed that nitrification and anaerobic hydrolysis were found to be 30% and 70% lower than literature values, respectively. The anaerobic digestion test coupled with plant-wide model calibration showed that anaerobic hydrolysis was the bottleneck in biogas production. Correspondingly, performance of the anaerobic digestion in the full-scale plant was poor as low biogas production yields were observed. In addition, the degradation rate via anaerobic hydrolysis of primary sludge was found to be higher (∼2-2.5) compared to anaerobic hydrolysis of biological sludge. The results of this study provide insight into model-based experimental characterization as well as plant-wide modeling approach. Coupling model-based batch experiments with full-scale modeling enabled to reduce the number of kinetic parameters to be fine-tuned. Moreover, the information gathered from kinetic batch tests to the simulation platform yielded a satisfying prediction of long-term performance of the plant operation.
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Affiliation(s)
- Güçlü Insel
- Istanbul Technical University, Environmental Engineering Department, 34469, Maslak, Istanbul.
| | - Goksin Ozyildiz
- Istanbul Technical University, Environmental Engineering Department, 34469, Maslak, Istanbul
| | - Didem Okutman-Tas
- Istanbul Technical University, Environmental Engineering Department, 34469, Maslak, Istanbul
| | - Didem Guven
- Istanbul Technical University, NOVA TTO, 34469, Istanbul, Turkey
| | - Gulsum Emel Zengin
- Istanbul Technical University, Environmental Engineering Department, 34469, Maslak, Istanbul
| | - Ilke Pala-Ozkok
- Department of Chemistry, Bioscience, and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway
| | - Ece Sagir Kurt
- Istanbul Water and Sewerage Administration, Strategy Development Department, 34403, Kagithane, Istanbul
| | - Ezgi Atli
- Istanbul Water and Sewerage Administration, Strategy Development Department, 34403, Kagithane, Istanbul
| | - Nazik Artan
- Istanbul Technical University, Environmental Engineering Department, 34469, Maslak, Istanbul
| | - Imre Takács
- Dynamita, 2015 Route d'Aiglun, Sigale, France
| | - Emine Cokgor
- Istanbul Technical University, Environmental Engineering Department, 34469, Maslak, Istanbul
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Demirkaya E, Ciftcioglu B, Ozyildiz G, Zengin GE, Pala-Ozkok I, Cokgor E, Tas DO. Comprehensive evaluation of starter culture impact on the bioreactor performance and microbial kinetics. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Leyva-Díaz JC, Monteoliva-García A, Martín-Pascual J, Munio MM, García-Mesa JJ, Poyatos JM. Moving bed biofilm reactor as an alternative wastewater treatment process for nutrient removal and recovery in the circular economy model. BIORESOURCE TECHNOLOGY 2020; 299:122631. [PMID: 31902639 DOI: 10.1016/j.biortech.2019.122631] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
Over the last years, an increasing concern has emerged regarding the eco-friendly management of wastewater. Apart from the role of wastewater treatment plants (WWTPs) for wastewater and sewage sludge treatment, the increasing need of the recovery of the resources contained in wastewater, such as nutrients and water, should be highlighted. This would allow for transforming a wastewater treatment plant (WWTP) into a sustainable technological system. The objective of this review is to propose a moving bed biofilm reactor (MBBR) as a novel technology that contributes to the circularity of the wastewater treatment sector according to the principles of circular economy. In this regard, this paper aims to consider the MBBR process as the initial step for water reuse, and nutrient removal and recovery, within the circular economy model.
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Affiliation(s)
- J C Leyva-Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, 33006 Oviedo, Spain.
| | - A Monteoliva-García
- Department of Civil Engineering, University of Granada, 18071 Granada, Spain
| | - J Martín-Pascual
- Department of Civil Engineering, University of Granada, 18071 Granada, Spain
| | - M M Munio
- Department of Chemical Engineering, University of Granada, 18071 Granada, Spain
| | - J J García-Mesa
- Department of Chemical Engineering, University of Granada, 18071 Granada, Spain
| | - J M Poyatos
- Department of Civil Engineering, University of Granada, 18071 Granada, Spain
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