Comparative evaluation of cost for preliminary and tertiary municipal wastewater treatment plants in Istanbul

Özgün, Hale; Cicekalan, Busra; Akdag, Yasemin; Koyuncu, İsmail; Öztürk, İzzet

doi:10.1016/j.scitotenv.2021.146258

Cited by 31 publications

(16 citation statements)

References 30 publications

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“…75,76 The economic analysis of different levels in wastewater treatment plants was carried out and demonstrated that the whole budget of a plant signicantly relies on the treatment step; the equipment fee has predominated the investment of the preliminary treatment plant whereas, the construction consumed high cost for the tertiary one. 77 It was implemented the cost analysis of wastewater treatment by advanced oxidation processes and revealed that ozone, O 3 /H 2 O 2 (0.005 M), Fenton, was commendably used in the business. 76,78 However, there has been limited publish about the economic analysis of producing zeolite from waste y ash.…”

Section: E Preliminary Cost Analysismentioning

confidence: 99%

Enhancing the removal efficiency of methylene blue in water by fly ash via a modified adsorbent with alkaline thermal hydrolysis treatment

Dinh¹,

Vo²,

Tran³

et al. 2021

RSC Adv.

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Section: E Preliminary Cost Analysismentioning

confidence: 99%

Enhancing the removal efficiency of methylene blue in water by fly ash via a modified adsorbent with alkaline thermal hydrolysis treatment

Dinh¹,

Vo²,

Tran³

et al. 2021

RSC Adv.

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“…In this sense, the digestion process in sludge treatment has become the first step in the reuse chain, representing up to 50% of the operational costs in sewage treatment plants [13,14]. Additionally, the sewage treatment process establishes a valuable source of raw materials, especially for obtaining nutrients, energy, and water for human consumption [9].…”

Section: Wastewater Treatment Plants and The Need For Cost-effective Preventive Maintenance Strategiesmentioning

confidence: 99%

“…In the case of the wastewater treatment process, the industry needs to optimize the use of resources to achieve the expected service levels, which necessarily implies the use of efficient management strategies within treatment plants to ensure their survival under competitive industrial environments [8]. At the same time, water quality standards are becoming more and more stringent to prevent the negative impact of wastewater discharges on the environment [9]. Furthermore, this industry faces an additional challenge: service failures and breakdowns do not only establish an operational cost increase, but also represent a potential risk of environmental damage due to its malfunction [8].…”

Section: Introduction 1the Relevance Of Modern Maintenance Management In Wwtpsmentioning

confidence: 99%

Opportunistic Strategy for Maintenance Interventions Planning: A Case Study in a Wastewater Treatment Plant

et al. 2021

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Wastewater treatment plants (WWTPs) face two fundamental challenges: on the one hand, they must ensure an efficient application of preventive maintenance plans for their survival under competitive environments; and on the other hand, they must simultaneously comply with the requirements of reliability, maintainability, and safety of their operations, ensuring environmental care and the quality of their effluents for human consumption. In this sense, this article seeks to propose a cost-efficient alternative for the execution of preventive maintenance (PM) plans through the formulation and optimization of the opportunistic grouping strategy with time-window tolerances and non-negligible execution times. The proposed framework is applied to a PM plan for critical high-risk activities, addressing primary treatment and anaerobic sludge treatment process in a wastewater treatment plant. Results show a 26% system inefficiency reduction versus the initial maintenance plan, demonstrating the capacity of the framework to increase the availability of the assets and reduce maintenance interruptions of the WWTP under analysis.

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“…In our case, for Die-Sinking EDC, duty cycle, tool properties, and flushing pressure were considered differently than the other procedures (Powder Mixed EDC and Powder Metallurgy Electrode EDC). Water and wastewater treatment facilities [17,18] are difficult to maintain due to ambient exposure. The tanks used for settling treated wastewater in each step, pumping, sludge tanks [19] clarifying and filtering processes are based on steel and concrete, which is vulnerable to corrosion and sandy.…”

Section: Introductionmentioning

confidence: 99%

“…Metal coatings such as Cu and Si [22] for the water and wastewater treatment processes increase durability and are anticorrosive [23] antiviral, and photoactive. Water and wastewater treatment facilities [17,18] are difficult to maintain due to ambient exposure. The tanks used for settling treated wastewater in each step, pumping, sludge tanks [19] clarifying and filtering processes are based on steel and concrete, which is vulnerable to corrosion and sandy.…”

Section: Introductionmentioning

confidence: 99%

Formation and Optimization of Electrical Discharge Coatings Using Conventional Electrodes

et al. 2021

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An emerging topic is electrical discharge (ED) coating with its application on complex shapes and cavities to repair components or act as functional coatings. Because it is a variant process of an electric discharge machine (EDM) with the ability to coat on electrically conductive substrates, there is a possibility that next-generation electrical discharge machining components may exploit the attachment phenomenon to enhance recast layer properties. Previously, researchers have obtained ED coating by mixing the powder in a dielectric medium and/or by using powder metallurgy electrodes. In this work, primarily, an insight in the formation of ED coating on-die sinks electrical discharge machine, using conventional electrode materials viz., bronze on titanium alloy (Ti-6Al-4V) is made. The bronze electrode on the titanium substrate obtained a crack-free copper coating of ~20 microns thickness. In order to perform the experiments, three combinations were made using five parameters: current (Amps), ton (µs), Toff (µs), duty cycle (%), and flushing pressure as constant (bar). After obtaining the coating, a combination of input parameters was selected by optimizing the output performance parameters, viz., the electrical discharge deposition rate, coating thickness, micro-cracks, and elemental coating composition. Secondarily, different optimization techniques viz., grey relational analysis, the technique for order of preferences by similarity to ideal solution, −nD angle method and information divergence method were implemented to find out the suitable combination of parameters where the latter two methods were introduced for the first time in this area of EDM optimization. A study was conducted to check whether the latter two methods are optimization techniques or multi-criteria decision-making techniques. The optimization of existing reactor types and the development of new reactors in wastewater treatment through EDC, by which energy could be saved by replacing the conventional techniques.

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Comparative evaluation of cost for preliminary and tertiary municipal wastewater treatment plants in Istanbul

Cited by 31 publications

References 30 publications

Enhancing the removal efficiency of methylene blue in water by fly ash via a modified adsorbent with alkaline thermal hydrolysis treatment

Enhancing the removal efficiency of methylene blue in water by fly ash via a modified adsorbent with alkaline thermal hydrolysis treatment

Opportunistic Strategy for Maintenance Interventions Planning: A Case Study in a Wastewater Treatment Plant

Formation and Optimization of Electrical Discharge Coatings Using Conventional Electrodes

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