Eco-Efficiency Assessment of Control Actions in Wastewater Treatment Plants

Revollar, Silvana; Meneses, Montse; Vilanova, Ramón; Vega, Pastora; Francisco, Mario

doi:10.3390/w13050612

Cited by 17 publications

(21 citation statements)

References 13 publications

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“…These results are mentioned in Table 4. The result obtained by authors considers the excess of actual indicators over the maximum permissible concentrations in contrast to results mentioned in manuscripts of Revollar et al [18] and Longo et al [23], where the weight of purified through WWT process pollution was taken into account. The authors believe that there is no need to overcome the MPCs, established by local authorities, because it can lead towards energy consumption increase.…”

Section: Resultsmentioning

confidence: 88%

“…Once the user has validated the simulation code, any control strategy can be applied and the performance can be evaluated according to a defined set of criteria [17]. Revollar et al [18] proposed the plant-wide control strategy using BSM2 in order to improve eco-efficiency of WWTP. In particular, performance indicators that measure potential energy recovery from biogas, electricity consumption, CO 2 , emissions, production of sludge for disposal, and effluent quality have been considered.…”

Section: Introductionmentioning

confidence: 99%

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Sustainable Energy Management Benchmark at Wastewater Treatment Plant

et al. 2021

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Urban wastewater effluents bring large amounts of nutrients, organic matter, and organic microcontaminants into freshwater ecosystems. Ensuring the quality of wastewater treatment (WWT) is one of the main challenges facing the management of wastewater treatment plants (WWTPs). However, achievement of high-quality standards leads towards significant energy consumption: usually the more intensive WWT process requires additional energies. Energy efficiency at WWTP is actual mainstream on the current sustainable development agenda. The WWTP processes and methods can be considered from the standpoint of material and energy flows according to circular economy paradigm, which offers great possibilities to reuse waste originating from WWT in order to receive renewable energy. The correlation between energy and quality issues to evaluate WWTP efficiency is of a great scientific and practical interest. The main goal of the paper is to check the dependency between these two main issues in WWTP management—WWT quality and energy efficiency—and to determine possible limits of such relation. The municipal sewerage system of Ekaterinburg, Russia was studied within this paper. The total length of centralized sewerage system in Ekaterinburg is over 1500 km of pipes within two main sewerage basins: northern and southern. The methodological framework for the current research consisted of three steps: (i) WWT quality evaluation, (ii) energy efficiency evaluation, and (iii) WWTP Quality/Energy (Q/E) efficiency dependency matrix. For the purpose of research, authors investigated the 2015–2018 period. The results showed that the outputs correlate with the technical conditions of WWTPs and the implementation of the best available techniques (BATs): most of the northern WWTP values are referred to the green zone (good rank), while the southern WWTP values are situated generally in the orange zone (unsatisfactory rank). The proposed methodological approach for Q/E dependency of WWT process creates a strong but simple tool for managers to evaluate the current success of the operation of WWTP and progress towards circular economy practices implementation.

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Section: Resultsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Sustainable Energy Management Benchmark at Wastewater Treatment Plant

et al. 2021

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“…The basic water quality discharge target values for industrial water are higher than those for other water uses. This is to ensure the safety of industrial reuse; higher treatment requirements need to be imposed on water reclamation plants [58]. The design of the wastewater treatment process first needs to meet the legal requirements for the quality of the wastewater to be discharged into the river.…”

Section: Water Resource Managementmentioning

confidence: 99%

Measuring the Operational Efficiency and the Water Resources Management Efficiency for Industrial Parks: Empirical Study of Industrial Parks in Taiwan

Chiu

Tang

2022

Sustainability

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The efficiency of an industrial park’s operations is an indicator of how well the park can serve the companies located there. These supports include support for environmental water resources and business operations. In this study, a model for measuring water resources management efficiency is developed at the conceptual level using the management mindset of relative efficiency and management by objectives, and a modified Delphi method is used to determine the feasibility of a measurement model for water resources management efficiency. Furthermore, DEA data envelopment analysis was used to analyze the overall operational efficiency of the park. The results of the study showed that the model developed in this study for measuring water resources efficiency is of practical use. In addition, water resource management efficiency can be used as an indicator to assist in the determination of the operating efficiency of the industrial park when it is derived from the DEA analysis. In this study, among the 31 industrial parks in Taiwan, the operating efficiency values were classified into four categories, and the results show that the operating efficiency of most of the industrial parks need to be improved.

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“…This implies obtaining a high-quality effluent as a first goal, whilst simultaneously optimizing the use of other resources [9,10]. Since the electricity demand in wastewater treatment is usually very high [10,11], actions are needed to deal with this environmental aspect including both efficiency improvement and renewable energy generation [12,13]. Figure 1 summarizes the global water cycle with main energy flows.…”

Section: Introductionmentioning

confidence: 99%

Hydropower Technology for Sustainable Energy Generation in Wastewater Systems: Learning from the Experience

Llácer-Iglesias

Jiménez

Sánchez

2021

Water

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Hydropower is a well-known technology, applied worldwide for electricity generation from renewable sources. Within the current framework, some studies have started to consider its application to existing urban water systems, to harness an excess of energy that otherwise would be wasted. This research sought to determine a methodology to assess the potential of hydropower application to wastewater treatment plants (WWTPs), regarding different aspects of sustainability. Firstly, previously developed methodologies for potential assessment in this sector at a country level were analyzed. Secondly, data from existing real case studies were gathered from publicly available documents and a theoretical analysis of their actual performance was conducted to validate assumptions made in the previous methodologies. As a result, the proposed new approach suggests adapting methodologies for potential assessment at a lower level, considering possible driving factors, other than economic feasibility. To define the study area, the management model scope should be considered. The power to determine the cut-off point for a WWTP to be considered as a potential site, is proposed to be lowered according to technical feasibility. Additionally, bearing in mind the sustainability concept, social or environmental factors should also be introduced in the methodology, tailored to the region being assessed. This novel perspective could provide a closer approach to the most likely decision-making level for these kinds of strategies in the wastewater industry.

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Eco-Efficiency Assessment of Control Actions in Wastewater Treatment Plants

Cited by 17 publications

References 13 publications

Sustainable Energy Management Benchmark at Wastewater Treatment Plant

Sustainable Energy Management Benchmark at Wastewater Treatment Plant

Measuring the Operational Efficiency and the Water Resources Management Efficiency for Industrial Parks: Empirical Study of Industrial Parks in Taiwan

Hydropower Technology for Sustainable Energy Generation in Wastewater Systems: Learning from the Experience

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