Các bài báo tiêu biểu
A Review of the Chemistry of Anaerobic Digestion: Methods of Accelerating and Optimizing Process EfficiencyThe anaerobic digestion technology has been in existence for centuries and its underlying theory established for decades. It is considered a useful technology for the generation of renewable energy, and provides means to alleviate problems associated with low access to energy. However, a great deal of current research is targeted towards the optimization of this technology under diverse di... ...
Tập 7 Số 8 - Trang 504
Food Waste Composting and Microbial Community Structure ProfilingOver the last decade, food waste has been one of the major issues globally as it brings a negative impact on the environment and health. Rotting discharges methane, causing greenhouse effect and adverse health effects due to pathogenic microorganisms or toxic leachates that reach agricultural land and water system. As a solution, composting is implemented to manage and reduce food waste in... ...
Tập 8 Số 6 - Trang 723
Assessment of Wind Energy Potential for the Production of Renewable Hydrogen in Sindh Province of PakistanIn this study, we developed a new hybrid mathematical model that combines wind-speed range with the log law to derive the wind energy potential for wind-generated hydrogen production in Pakistan. In addition, we electrolyzed wind-generated power in order to assess the generation capacity of wind-generated renewable hydrogen. The advantage of the Weibull model is that it more accurately ref... ...
Tập 7 Số 4 - Trang 196
Aeration Process in Bioreactors as the Main Energy Consumer in a Wastewater Treatment Plant. Review of Solutions and Methods of Process OptimizationDue to the key role of the biological decomposition process of organic compounds in wastewater treatment, a very important thing is appropriate aeration of activated sludge, because microorganisms have to be supplied with an appropriate amount of oxygen. Aeration is one of the most energy-consuming processes in the conventional activated sludge systems of wastewater treatment technology (m... ...
Tập 7 Số 5 - Trang 311
Flotation in Water and Wastewater TreatmentFlotation constitutes a separation process that originated from mineral processing. Nowadays, wider applications have been found and compared to flotation for water and wastewater treatment. Stress in the present review paper was mainly applied to heavy metal ions recovery by flotation and the respective mechanism followed, being either ion, precipitate, or sorptive flotation. In the latte... ...
Tập 6 Số 8 - Trang 116
Advanced Bioethanol Production: From Novel Raw Materials to Integrated BiorefineriesThe production of so-called advanced bioethanol offers several advantages compared to traditional bioethanol production processes in terms of sustainability criteria. This includes, for instance, the use of nonfood crops or residual biomass as raw material and a higher potential for reducing greenhouse gas emissions. The present review focuses on the recent progress related to the producti... ...
Tập 9 Số 2 - Trang 206
Measuring Energy Efficiency and Environmental Performance: A Case of South AsiaWhen assessing energy efficiency, most studies have frequently ignored environmental aspects even though the concept has been widely used in the past. This study evaluates the energy efficiency and environmental performance of South Asia by using DEA (data envelopment analysis) like mathematical composite indicator. We construct a comprehensive set of indicators, including an energy self-s... ...
Tập 7 Số 6 - Trang 325
Preparation of KOH and H3PO4 Modified Biochar and Its Application in Methylene Blue Removal from Aqueous SolutionImproperly treated or directly discharged into the environment, wastewater containing dyes can destroy the quality of water bodies and pollute the ecological environment. The removal of dye wastewater is urgent and essential. In this study, corn stalk was pyrolyzed to pristine biochar (CSBC) in a limited oxygen atmosphere and modified using KOH and H3PO4 (KOH-CSBC, H3PO4-CSBC, respectively... ...
Tập 7 Số 12 - Trang 891
A DEA Approach for Assessing the Energy, Environmental and Economic Performance of Top 20 Industrial CountriesDue to growing concerns of global warming, reducing carbon emissions has become one of the major tasks for developing countries to meet the national demand for energy policies. The objective of this study is to measure the energy consumption, carbon emission and economic-environmental efficiency in terms of the environmental performance of the top 20 industrial countries by employing a dat... ...
Tập 7 Số 12 - Trang 902
Technology for the Remediation of Water Pollution: A Review on the Fabrication of Metal Organic FrameworksThe ineffective control of the release of pollutants into water has led to serious water pollution. Compared with conditions in the past, the polluting components in aquatic environments have become increasingly complex. Some emerging substances have led to a new threat to the safety of water. Therefore, developing cost-effective technologies for the remediation of water pollution is urgen... ...
Tập 6 Số 8 - Trang 122