scholarly journals Adsorptive removal of metformin on specially designed algae-lignocellulosic biochar mix and techno-economic feasibility assessment

2022 ◽  
Vol 292 ◽  
pp. 118256
Author(s):  
Goldy De Bhowmick ◽  
Rowena M. Briones ◽  
Sören Thiele-Bruhn ◽  
Ramkrishna Sen ◽  
Ajit K. Sarmah
Atmosphere ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 14 ◽  
Author(s):  
Milena Daničić ◽  
Vladislav Zekić ◽  
Milan Mirosavljević ◽  
Branislava Lalić ◽  
Marina Putnik-Delić ◽  
...  

The present study assessed the effect of projected climate change on the sowing time, onset, and duration of flowering, the duration of the growing season, and the grain yield of spring barley in Northern Serbia. An AquaCrop simulation covered two climate model integration periods (2001–2030 and 2071–2100) using a dual-step approach (with and without irrigation). After considering the effect of climate change on barley production, the economic benefit of future supplemental irrigation was assessed. The model was calibrated and validated using observed field data (2006–2014), and the simulation’s outcomes for future scenarios were compared to those of the baseline period (1971–2000) that was used for the expected climate analysis. The results showed that the projected features of barley production for the 2001–2030 period did not differ much from current practice in this region. On the contrary, for the 2071–2100 period, barley was expected to be sown earlier, to prolong its vegetation, and to shorten flowering’s duration. Nevertheless, its yield was expected to remain stable. An economic feasibility assessment of irrigation in the future indicated a negative income, which is why spring barley will most likely remain rain-fed under future conditions.


2020 ◽  
Vol 248 ◽  
pp. 117152
Author(s):  
Yuri A.R. Lebron ◽  
Victor R. Moreira ◽  
Tatiane P.B. Furtado ◽  
Selma C. da Silva ◽  
Lisete C. Lange ◽  
...  

2019 ◽  
Vol 690 ◽  
pp. 261-276 ◽  
Author(s):  
Najam Ul Saqib ◽  
Hari Bhakta Sharma ◽  
Saeid Baroutian ◽  
Brajesh Dubey ◽  
Ajit K. Sarmah

2019 ◽  
Vol 486 (5) ◽  
pp. 543-546
Author(s):  
T. S. Gabderakhmanova ◽  
O. S. Popel

The results of the economic feasibility assessment of photovoltaic (PV) microgeneration systems by the criterion of the cost of energy are presented. The assessment is based on dynamic modelling of three different configurations of grid-connected PV systems - without energy storage, with electrical energy storage and with thermal energy storage - performed for weather and electricity tariff conditions of several prospective Russian regions. Government support measures and regulatory standards currently developing in Russia for microgeneration technologies are taken into account. It is shown that under certain conditions PV microgeneration technologies could be economically feasible in some energy isolated areas and non-pricing zones of the wholesale electricity and capacity market of Russia, particularly in the Sakha Republic, whereas in pricing zones - couldn’t for any of the considered system configurations.


2020 ◽  
Vol 14 (6) ◽  
pp. 984-998
Author(s):  
Akihisa Ogawa ◽  
◽  
Andante Hadi Pandyaswargo ◽  
Daiki Yoshidome ◽  
Hiroshi Onoda

We evaluated the feasibility of waste-generated heat using a 100-kW digestion gas engine at the Karatsu City Water Purification Center by evaluating its disaster resilience through four indicators. We achieved the best outcome, i.e., a power generation rate of 1,122 kW and a power self-sufficiency rate of 22% when two or more digestion gas engines were installed to supply waste-generated heat to the absorption chiller/heater of a water-pool. Additionally, we evaluated the environmental and economic aspects of a Mechanical Biological Treatment (MBT) system installed in Karatsu City. The results suggested that by installing an MBT system, the annual cost could be reduced by ∼100 million Yen and the power generation capacity could be increased to 4,310 kW; this could also help reduce 19,000 tons of annual CO2 emissions with increased power generation. The environmental and economic feasibility assessment tool developed here is configurable; hence, applicable to other regions.


2019 ◽  
Vol 11 (9) ◽  
pp. 2609 ◽  
Author(s):  
Giovanna Acampa ◽  
Maria Gabriella Giustra ◽  
Claudia Mariaserena Parisi

The European Union is committed to enforce limitations to water pollution through specific directives (UWWTD 91/271/EEC). The delay of some EU member states in transposing these directives has had an impact on the quality of the wastewater treatment system. Therefore, it is necessary to intervene with adjustment procedures and construction of new plants. The aim of the study is to carry out an economic feasibility assessment for the construction costs of an urban wastewater treatment plant of medium-low capacity (<50,000 Population Equivalent or pe) according to a simplified process diagram, and help in the planning of new investments. We propose a methodology based on cost functions according to two different procedures: synthetic estimate of the costs for civil works and a multiple linear regression for the cost of the electromechanical equipment. These functions show a correlation between the construction costs and the population equivalent and enable us to understand it. The results show greater economic benefit in increasing wastewater treatment plants sizes serving a population equivalent of 5000 pe to 10,000 pe, while further increases are less beneficial.


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