Performance amelioration of single basin solar still integrated with V- type concentrator: Energy, exergy, and economic analysis

Thakur, Amrit Kumar; Sharshir, Swellam W.; Ma, Zhenjun; Arunkumar, T.; Christopher, S.; Vikram, Muthuraman Ponrajan; Li, Shunyang; Wang, Pengfei; Zhao, Wensheng; Kabeel, A.E.

doi:10.1007/s11356-020-10625-2

Cited by 52 publications

(11 citation statements)

References 61 publications

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“…Solar assisted wastewater disinfection is a highly feasible and applicable option in several types of aquatic environments ( Nelson et al, 2018 ). Solar based drinking water disinfection is a sustainable approach for disinfecting water, and it is widely promoted ( Thakur et al, 2018a , 2018b , 2020b , 2021a , 2021b , 2021c , 2021d ; Thakur et al, 2020 a; Kumar et al, 2017 ). It mainly depends on the intensity of solar radiation, the optical, physical, and chemical properties of the wastewater, and the type of virus ( Verbyla et al, 2015 ).…”

Section: Potential Wastewater Treatment Options For Covid-19 Inactivamentioning

confidence: 99%

Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic

Thakur

Sathyamurthy

Velraj

et al. 2021

Journal of Environmental Management

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The SARS-CoV-2 virus has spread globally and has severely impacted public health and the economy. Hand hygiene, social distancing, and the usage of personal protective equipment are considered the most vital tools in controlling the primary transmission of the virus. Converging evidence indicated the presence of SARS-CoV-2 in wastewater and its persistence over several days, which may create secondary transmission of the virus via waterborne and wastewater pathways. Although, researchers have started focusing on this mode of virus transmission, limited knowledge and societal unawareness of the transmission through wastewater may lead to significant increases in the number of positive cases. To emphasize the severe issue of virus transmission through wastewater and create societal awareness, we present a state of the art critical review on transmission of SARS-CoV-2 in wastewater and the potential remedial strategies to effectively control the viral spread and safeguard society. For low-income countries with high population densities, it is suggested to identify the virus in large scale municipal wastewater plants before following up with one-to-one testing for effective control of the secondary transmission. Ultrafiltration is an effective method for wastewater treatment and usually more than 4 logs of virus removal are achieved while safeguarding good protein permeability. Decentralized wastewater treatment facilities using solar-assisted disinfestation methods are most economical and can be effectively used in hospitals, isolation wards, and medical centers for reducing the risk of transmission from high local concentration sites, especially in tropical countries with abundant solar energy. Disinfection with chlorine, sodium hypochlorite, benzalkonium chloride, and peracetic acid have shown potential in terms of virucidal properties. Biological wastewater treatment using micro-algae will be highly effective in removal of virus and can be incorporated into membrane bio-reaction to achieve excellent virus removal rate. Though promising results have been shown by initial research for inactivation of SARS-CoV-2 in wastewater using physical, chemical and biological based treatment methods, there is a pressing need for extensive investigation of COVID-19 specific disinfectants with appropriate concentrations, their environmental implications, and regular monitoring of transmission. Effective wastewater treatment methods with high virus removal capacity and low treatment costs should be selected to control the virus spread and safeguard society from this deadly virus.

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Section: Potential Wastewater Treatment Options For Covid-19 Inactivamentioning

confidence: 99%

Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic

Thakur

Sathyamurthy

Velraj

et al. 2021

Journal of Environmental Management

Self Cite

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“…[ 8,9,12 ] Some of the modifications focused on integrating some additives, either internal or external, aiming to enhance the evaporation/condensation process, such as energy storage materials, [ 13–16 ] sponges, [ 17,18 ] wick materials, [ 19–21 ] different types of wick materials and rocks, [ 22 ] mirrors and sun tracking, [ 23 ] hybrid systems, [ 24,25 ] activated carbon [ 26 ] and controlling the water depth, [ 27 ] and V‐type concentrator. [ 28 ] Such modifications can lead to good enhancement in SS performance. For example, using a double‐layer square wick can lead to 114% yield improvement, [ 29 ] using a concave‐shaped wick can result in good production up to 4.1 L m −2 , [ 30 ] and integrating a wick‐wrapped pin‐finned basin can get enhanced yield by 23%.…”

Section: Introductionmentioning

confidence: 99%

Productivity Modeling Enhancement of a Solar Desalination Unit with Nanofluids Using Machine Learning Algorithms Integrated with Bayesian Optimization

Kandeal

Chen

et al. 2021

Energy Tech

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Herein, double slope solar still (DSSS) performance is accurately forecast with the aid of four different machine learning (ML) models, namely, artificial neural network (ANN), random forest (RF), support vector regression (SVR), and linear SVR. Furthermore, the tuning of ML models is optimized using the Bayesian optimization algorithm (BOA) to get the optimal performance of all models and identify the best predictive one. All the models are trained, tested, and validated depending on experimental data acquired under Egyptian climatic conditions. The results reveal that ML models can be a powerful tool to forecast DSSS performance. Among them, RF is the most potent ML model obtaining the highest determination coefficient (R2) and the lowest absolute error percentage of 0.997% and 2.95%, respectively. Furthermore, the experimental results also show that the mean value of accumulated (daily) freshwater productivity from DSSS is 4.3 L m−2.

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“…Contrary to conventional solar still, for the solar still with heat localization material, increasing the water depth increases the productivity. Thakur et al (2021) studied the effect of a V-shape concentrator on the productivity of solar still at different water depths. The productivity per day of the modified solar still, with V-shape concentrator, is 5.47, 5.10, and 4.89 L/m 2 , but for the conventional solar still is 3.73, 3.27, and 2.91 L/m 2 at the water depths of 10, 20, and 30 mm, respectively.…”

Section: Introductionmentioning

confidence: 99%

Determination of the effect of water depth on the yield of a solar still using an automatic feedwater system

Elgendi

Selim

2021

Environ Sci Pollut Res

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Herein, the water depth in a pyramidal solar still was kept constant using an automatic feedwater system through an auxiliary tank. Six water depths ranging from 5 to 50 mm were investigated. All variables were measured continuously but were logged automatically every hour. Increasing the water depth increased the water volume, thereby increasing the thermal capacity of the solar still. Therefore, increasing water depth increases the nocturnal yield but decreases the diurnal yield. Over the whole day, lower water depths resulted in higher accumulated yields. These accumulated yields increased by 37% by decreasing the water depth by 90% from 50 mm. The desalination system can work without human intervention, improving its sustainability. Moreover, the automatic feedwater system facilitates the end-user operation processes and succeeds in maintaining a constant optimal water depth in the solar still. KeywordsSolar still . Automatic feedwater . Water depth . Hydrostatic principle Nomenclature DBT Dry bulb temperature Mw Distilled water productivity Ta Ambient temperature TfThe temperature of feedwater in the auxiliary tank TgThe temperature of the outer surface of the glass cover THSW Apparent temperature TvVapor temperature inside the solar still TwThe water temperature inside the solar still

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Performance amelioration of single basin solar still integrated with V- type concentrator: Energy, exergy, and economic analysis

Cited by 52 publications

References 61 publications

Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic

Secondary transmission of SARS-CoV-2 through wastewater: Concerns and tactics for treatment to effectively control the pandemic

Productivity Modeling Enhancement of a Solar Desalination Unit with Nanofluids Using Machine Learning Algorithms Integrated with Bayesian Optimization

Determination of the effect of water depth on the yield of a solar still using an automatic feedwater system

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