Thermo-economic evaluation of a hybrid solar-conventional energy supply in a zero liquid discharge wastewater treatment plant

Najafi, Ahmadreza; Jafarian, Ali; Darand, Jamal

doi:10.1016/j.enconman.2019.03.059

Cited by 39 publications

(4 citation statements)

References 49 publications

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“…Optimum parameters of the solar system and storage tank were reported. Najafi et al [29] thermos-economically evaluated a solarconventional energy supply system. They investigated a direct absorption PTC collector.…”

Section: Introductionmentioning

confidence: 99%

Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity

Ardeh

Loni

Najafi

et al. 2019

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity

Ardeh

Loni

Najafi

et al. 2019

Energy Conversion and Management

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“…Figure 13 shows the normalized productions for each month of the year, as well as PV-array losses, system losses, and produced usable energy. This graph indicates that the highest energy is produced in the months of April-September, while the lowest is generated in the months of December-January (Hobus & Hegemann 2003;Renu et al 2017;Singh et al 2017;Najafi et al 2019;Chahartaghi & Nikzad 2021). This energy includes the energy generated by the PV panels as well as the energy necessary to pump the desired amount of treated wastewater for reuse in the Assa Oasis, which is anticipated to be 24 m 3 /day.…”

Section: System Results Of Energy and Water Quantity Required For Reusementioning

confidence: 99%

Design and performance analysis of a renewable pumping system for treated wastewater to reuse in the Moroccan desert

Achag¹,

Mouhanni²,

Bendou³

2021

Journal of Water and Climate Change

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Treated wastewaters are an important alternative water supply for communities in dry climates all over the world. This study investigates using waste stabilization ponds (WSPs) to treat wastewater and the design of a solar photovoltaic pumping system to transfer the water to an Oasis in the Moroccan desert. The Oasis is currently about 5 ha in size and is irrigated with 24 m3/day of underground water. The wastewater is subjected to physicochemical and bacteriological analyses, also monitoring of operation, maintenance and loading rates of the WSPs for 12 months. To build a solar water pumping system, data on the system's components as well as local climatic data are obtained. The design optimization is done by simulation software PVsyst. WSPs provide reduced rates of BOD and fecal coliforms of 95 and 99%, respectively, with an average effluent concentration of 20 mg/l and 195 CFU. The exploitation of solar energy for pumping 24 m3/day requires five panels with a unit nominal power of 440 W for each panel and 2200 W for the entire system. This allows us to save about 1,500 kg of CO2 emissions per year, protect the region's fragile water resources and ensure the sustainability of the Oasis.

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“…In order to meet the concept of sustainable wastewater treatment (which does not generate secondary wastewater pollution and does not require external energy), efforts are being made to research modern wastewater treatment technologies which fulfill these expectations. An alternative to conventional power WWTPs can be solar energy, especially in regions with a large number of sunny days per year [27].…”

Section: Introductionmentioning

confidence: 99%

Financial and Economic Investment Evaluation of Wastewater Treatment Plant

Ćetković

Knežević

Lakić

et al. 2022

Water

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Improved Cost-Benefit Analysis (CBA) analysis requires a broader analytical framework, in order to perceive each project individually from the perspective of potentially measurable and significant effects on the environment and society as a whole. The main goal of our paper is to assess the financial and economic justification for variant V3 (as the most technically optimal) of the wastewater treatment plant (WWTP) construction project in Nov Dojran, North Macedonia, with the purpose of advancing municipal infrastructure and environmental benefits from improved water treatment. Based on the economic analysis conducted, we conclude that the investment in the WWTP project is justified, because the economic internal rate of return is higher than the opportunity cost of capital (EIRR = 16.38%), the economic net present value is higher than 0, and EBCR (benefit-cost ratio) is greater than 1 (EBCR = 2.11). The highest environmental benefit of 49.2% in total environmental benefits is associated with nitrogen, while phosphorus is the next pollutant in the structure of environmental benefits at 46.1%. The environmental benefits of removing biological oxygen demand (BOD) and chemical oxygen demand (COD) are significantly less important, despite the removal of significant amounts of these pollutants during treatment. The situation is similar with suspended particles.

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Thermo-economic evaluation of a hybrid solar-conventional energy supply in a zero liquid discharge wastewater treatment plant

Cited by 39 publications

References 49 publications

Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity

Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity

Design and performance analysis of a renewable pumping system for treated wastewater to reuse in the Moroccan desert

Financial and Economic Investment Evaluation of Wastewater Treatment Plant

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