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Topic Review
Tire Pyrolysis Oil
Energy is essential for the nature of life and the development of countries. The main demand for the 21st century is to fulfill growing energy needs. Pakistan, through the use of fossil fuels, meets energy demands. There is pressure on the economy of the country due to the massive reliance on fossil fuels, and this tendency is influenced by various environmental impacts. To overcome the burden on fossil fuels, more attention has been drawn to provide fossil fuel substitution. Tire pyrolysis is among the effective substitutes of the fuel technology that generates useful products of liquid oil, char, and pyro gas.
  • 2.5K
  • 30 Sep 2021
Topic Review
A Sustainable Circular Plastics Economy in The Netherlands
The circular economy (CE) has become a key sustainability discourse in the last decade. The Netherlands seeks to become fully circular by 2050 and the EU has set ambitious circularity targets in its CE Action Plan of 2015. The plastics sector, in particular, has gained a lot of attention as it is a priority area of both the EU and Dutch CE policies. However, there has been little research on the different and often contested discourses, governance processes and policy mechanisms guiding the transition to a circular economy and society. There is thus a dominance of technocentric imaginaries, and a general lack of discussion on holistic, and transformative visions, which integrate the full social, political, and ecological implication of a circular future. 
  • 2.4K
  • 02 Mar 2022
Topic Review
Challenges to Renewable Energy Transition in China
Climate change and energy issues have become the prominent global challenge and a major concern of China. China’s energy sector, which heavily relies on fossil energy, especially coal, is the largest contributor to China’s carbon emissions. According to the International Energy Agency (IEA), China’s energy consumption accounts for nearly 90% of China’s total CO2 emissions in 2020. The carbon neutrality target poses a huge challenge to China’s energy system, causing energy transition to be the key to the overall decarbonization of China’s economy and society.
  • 2.3K
  • 07 Dec 2022
Topic Review
Hydrochar
Recently, due to the escalating usage of non-renewable fossil fuels such as coal, natural gas and petroleum coke in electricity and power generation, and associated issues with pollution and global warming, more attention is being paid to finding alternative renewable fuel sources. Thermochemical and hydrothermal conversion processes have been used to produce biochar and hydrochar, respectively, from waste renewable biomass. Char produced from the thermochemical and hydrothermal decomposition of biomass is considered an environmentally friendly replacement for solid hydrocarbon materials such as coal and petroleum coke. Unlike thermochemically derived biochar, hydrochar has received little attention due to the lack of literature on its production technologies, physicochemical characterization, and applications.
  • 2.3K
  • 23 Aug 2021
Topic Review
Green and Blue Infrastructure
Green and blue infrastructure (GBI) is defined as a network of landscape components, which include green areas and water bodies. Such an infrastructure, available within an urban space, provides diverse environmental, economic, and social benefits to people and other living organisms.
  • 2.1K
  • 20 Aug 2021
Topic Review
Palm Oil Mill Effluent Treatment
POME is considered as one of the major problems that has generated voluminously from the palm oil industries. Pre-treatment is utmost required prior discharge to the environment. This review deals with current POME treatment techniques.
  • 2.1K
  • 26 May 2021
Topic Review
Smart Waste Management and Classification Systems
Waste management requires necessary processes and activities to dominate from its inception to demolition. Waste comes in solid, liquid, or gaseous form, and every type of waste demands a different method of classification, disposal, and management. Waste management deals with every waste category, including household, organic, industrial, municipal, biomedical, organic, biological, and radioactive waste. Any unnecessary substance or substance with no use is called “waste”. Waste management involves the collection of the waste and its transport and disposal to appropriate locations. In the European Union (EUROPA), 423 million tons or 56% of domestic waste was recycled in 2016. Reports reflect the need for proper household waste management for the recycling process. Most of the Earth’s population will emigrate from rural to urban areas in the coming years. Therefore, bigger cities will require a highly sustainable infrastructure and smart waste management system to fulfill the fundamental needs of its citizens and provide them with a good service for the future.
  • 2.1K
  • 06 Sep 2022
Topic Review
Power Generation in Sewage-Water Treatment Plants
Sewage-water treatment comprehends primary, secondary, and tertiary steps to produce reusable water after removing sewage contaminants. However, a sewage-water treatment plant is typically a power and energy consumer and produces high volumes of sewage sludge mainly generated in the primary and secondary steps. The use of more efficient anaerobic digestion of sewage water with sewage sludge can produce reasonable flowrates of biogas, which is shown to be a consolidated strategy towards the energy self-sufficiency and economic feasibility of sewage-water treatment plants. Anaerobic digestion can also reduce the carbon footprint of energy sources since the biogas produced can replace fossil fuels for electricity generation. 
  • 2.1K
  • 05 May 2022
Topic Review
Green Supply Chain Management
Green or sustainable supply chain management (SSCM) involves integrating environmental and economic objectives into the management of the operation strategy of the supply chain. Such integration helps reduce the carbon footprint while increasing financial return and profitability. A wider concept is SSCM, which aims to maximize profitability and, at the same time, reduce the environmental impact and improve the social well-being of the various involved stakeholders.
  • 2.1K
  • 30 Jul 2021
Topic Review
Plastic Packaging Recycling
Today, the scientific community is facing crucial challenges in delivering a healthier world for future generations. Among these, the quest for circular and sustainable approaches for plastic recycling is one of the most demanding for several reasons. Indeed, the massive use of plastic materials over the last century has generated large amounts of long-lasting waste, which, for much time, has not been object of adequate recovery and disposal politics. Most of this waste is generated by packaging materials. Nevertheless, in the last decade, a new trend imposed by environmental concerns brought this topic under the magnifying glass, as testified by the increasing number of related publications. Several methods have been proposed for the recycling of polymeric plastic materials based on chemical or mechanical methods. A panorama of the most promising studies related to the recycling of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and polystyrene (PS) is given within this review. 
  • 2.0K
  • 16 Sep 2021
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