Cost analysis of activated sludge and membrane bioreactor WWTPs using CapdetWorks simulation program: Case study of Tikrit WWTP (middle Iraq)

Arif, Alaa Uldeen Athil; Sorour, Mohamed; Aly, Samia A.

doi:10.1016/j.aej.2020.08.023

Cited by 61 publications

(29 citation statements)

References 22 publications

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“… Nasseri et al (2021) found that UV successfully disinfected Iranian wastewater treatment plants with SARS-CoV-2. However, well-maintained activated sludge processes may have enhanced disinfection effectivity, which may be expensive for other developing countries ( Craggs et al, 2014 ; Arif et al, 2020 ; Nasseri et al 2021 ; Serra-Compte et al, 2021 ). Additionally, temperatures higher than 40°C are needed for UV through solar stills to effectively inactivate SARS-CoV-2 in wastewater ( Parsa, 2021 ; Parsa et al, 2021 ).…”

Section: Wastewatermentioning

confidence: 99%

Elucidating the role of environmental management of forests, air quality, solid waste and wastewater on the dissemination of SARS-CoV-2

Stietiya

2022

Hygiene and Environmental Health Advances

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Section: Wastewatermentioning

confidence: 99%

Elucidating the role of environmental management of forests, air quality, solid waste and wastewater on the dissemination of SARS-CoV-2

Stietiya

2022

Hygiene and Environmental Health Advances

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“…Economic simulations and calculations of treatment plant operating costs have been performed using CapdetWorks2.5 software. shows the degree of consistency and incompatibility of the decision [2]. The method is based on a hierarchical structure to assist the analyst in managing critical aspects of the problem, within a tree-like hierarchical structure that reduces complex decisions to some simple comparisons and rankings [12].…”

Section: Economic Simulationmentioning

confidence: 99%

“…The purpose of using the analytic hierarchy process is to identify reference options as well as determining their ranking by considering all decision criteria simultaneously [2]. This analysis is a fl exible and quantitative method for selecting options based on their relative performance over a number of criteria.…”

Section: Analytic Hierarchy Processmentioning

confidence: 99%

“…Water is the main matter for life and living organisms are highly dependent on it in a way that more than 50% of each living organism is consists of water. Freshwater resources make up a very small part of the planet's water supply (about 3%) and of this limited amount, a very small percentage (about 10%) is reachable [1,2]. This chemical is naturally associated with impurities, and pure water is only reachable by its main reservoirs in polar glaciers because water dissolves or suspends organic and inorganic matter by passing through soil and air or mixing with other liquids.…”

Section: Introductionmentioning

confidence: 99%

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Economic evaluation of different biological municipal wastewater treatment systems and implementation of AHP method based on operating costs

Gheibi¹,

chahkandi²,

Kochakzadeh³

et al. 2021

Ann Syst Biol

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In large cities, several hundred cubic meters of municipal wastewater is produced every day, which because of high levels of pollution, needs to be treated either for disposal or secondary use. Some of the most important indicators and pollutants that should be reduced to the standard range are VOC, TSS, TDS, BOD 5 , nitrogen, phosphorus, heavy metals, and pathogens. Wastewater treatment plants, which have different capacities and procedures depending on the type and characteristics of the infl uent and effl uent, have large budgets of several hundred million for their life cycle. These costs include construction, maintenance, operation, chemical and biological materials, energy, and amortization. The costs associated with these environmentally essential infrastructures vary according to their treatment processes. This issue leads environmental engineers and policymakers to economic evaluation of various methods. This study with the help of CapdetWorks2.5 software has discussed three different methods of Complete Mixed Activated Sludge (CMAS), Aerated lagoon, and Oxidation Ditch in wastewater treatment plants in terms of operating costs. Evaluation and implementation of the decision-making system were conducted using Analytic Hierarchy Process (AHP). The results of the analysis showed that aeration ponds are the most optimal option in terms of operating costs with a value of 47.3%. The other two studied methods, namely CMAS and Oxidation Ditch, have a value of 24.9% and 27.9%, respectively.

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“…Membrane bioreactor (MBR) has gradually become a widespread technology to treat domestic wastewater (DWW) by virtue of its small footprint and high-quality effluent. − Nevertheless, membrane flux in the conventional MBR treating DWW is realistically limited to be around 15–25 L/m 2 ·h (LMH), resulting in higher specific energy consumption (kWh/m 3 ) in a MBR than that in a conventional activated sludge process. ,, Thus, the flux enhancement of MBR has been of strong interest to researchers and engineers for saving energy and costs. However, the high-flux operation of MBR remains a major challenge in its industrial applications at the expense of severe membrane fouling. , Membrane fouling would incur more operational costs and shorten the membrane lifespan due to intensive membrane cleaning methods .…”

Section: Introductionmentioning

confidence: 99%

Vibrating MBR with Settling Zone for High-Flux Domestic Wastewater Treatment: Enhanced Nitrogen Removal and Fouling Mitigation

Wang

2022

ACS EST Water

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High-flux operation remains a major challenge in membrane bioreactor (MBR) applications due to membrane fouling. This study proposed an optimized hybrid vibrating ceramic MBR (VCMBR) with a settling zone (SZ) to achieve long-term high-flux (40 LMH) operation for domestic wastewater treatment compared to a conventional air-sparging ceramic MBR (ASCMBR). Results showed that the VCMBR could be operated at 40 LMH with excellent organics and ammonium removal and slowed membrane fouling for over 1 week without any backwash. The introduction of SZ into the VCMBR enhanced the average TN removal efficiencies up to 68.1%, which were much higher than 29.1% in the ASCMBR with SZ. Reversible and irreversible fouling were simultaneously reduced in the VCMBR due to significant reductions of the DOMs in the fouling layer. Importantly, membrane vibration without strongly scouring the biomass could reduce the extracellular polymeric substances (EPSs) release and restrict the fouling sources, leading to better fouling control. Additionally, SZ helped lower the biomass concentrations in the membrane separation area, inducing lower EPS concentrations and thus showing less fouling propensity in both MBRs. Overall, the synergetic effects on enhancing nitrogen removal and fouling mitigation by this energy-efficient VCMBR could potentially advance high-flux MBR technology for future decentralized wastewater treatment.

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Cost analysis of activated sludge and membrane bioreactor WWTPs using CapdetWorks simulation program: Case study of Tikrit WWTP (middle Iraq)

Cited by 61 publications

References 22 publications

Elucidating the role of environmental management of forests, air quality, solid waste and wastewater on the dissemination of SARS-CoV-2

Elucidating the role of environmental management of forests, air quality, solid waste and wastewater on the dissemination of SARS-CoV-2

Economic evaluation of different biological municipal wastewater treatment systems and implementation of AHP method based on operating costs

Vibrating MBR with Settling Zone for High-Flux Domestic Wastewater Treatment: Enhanced Nitrogen Removal and Fouling Mitigation

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