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Topic Review
Fibrous Plant-Based Food Waste for Sorbing Heavy Metals
“Heavy metals” are associated with environmental pollution, food contamination, and toxicity and have adverse effects on terrestrial and aquatic ecosystems and animal and human health. Hazardous heavy metals and metalloids, such as arsenic (As), cadmium (Cd), chromium (Cr), lead (Pb), and mercury (Hg), and several essential heavy metals, such as copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), and zinc (Zn), above threshold levels, have been identified as priority contaminants and one of the key environmental issues of global concern due to their mobility in terrestrial and natural aquatic ecosystems and their carcinogenic nature. Use of inexpensive and abundantly available biosorbents generated from fibrous plant-based food-waste materials to remove heavy metals has garnered considerable research attention.
  • 368
  • 01 Jun 2023
Topic Review
Treatment Wetlands in Natural Swimming Ponds
Natural swimming ponds using treatment wetlands (TWs) as an element of treatment of swimming water are an ecologically beneficial alternative to conventional pools. Unlike conventional swimming pools, in natural swimming ponds, the water treatment avoids the use of chemical methods and is based on the phenomenon of water self-purification and the rhizofiltration capacity of repository macrophytes in TWs of the regeneration zone, as well as on typical physical filtering processes (e.g., straining, sedimentation, or flotation), physicochemical filtration (physical and chemical adsorption, mainly of phosphorus), and biological filtration (nitrification and denitrification). 
  • 574
  • 30 May 2023
Topic Review
Road Safety Near a Landfill Assessment in Europe
In Europe, many governments are struggling with the ambitious target of zero road deaths by 2050. On the other hand, they are facing remediation of illegal waste dumps, subject to European infringement procedures and involving a lot of workers and heavy materials transportation. In Italy, a specific department was started in 2017 to carry out the remediation of 200 illegal landfills of urban/industrial solid waste. According to the Italian legislative framework on construction site management, risk assessment should also include risks for the external context caused by the working site.
  • 397
  • 26 May 2023
Topic Review
Enhancement of Anaerobic Digestion Process with Biochar
Anaerobic digestion (AD) process is usually limited by factors such as process inefficiencies from substrate-induced instability, poor quality digestate, and poor management of effluent and emissions. Biochar, which is a highly porous carbonaceous material produced from the pyrolysis of biomass is an affordable accelerant that can be used to improve the efficiency of the AD process. Biochar has large specific surface area (SSA), high porosity, and abundant surface functional groups which allows for adsorption and ion exchange thereby removes free ammonia and ions and curbs their deleterious effect on the AD process. The performance of biochar in the AD process usually depends on its properties which are a function of pyrolysis conditions and the type of feedstock used in its production. However, these conditions/properties are not well understood. Additionally, the various mechanisms through which biochar enhances the performance of anaerobic digestion process. Accordingly, this research provides valuable insights into the utilization of biochar as an accelerator to enhance the AD process, addressing crucial factors such as optimal pyrolysis conditions, biochar dosage, and feedstock selection. Additionally, it delves into the mechanisms through which biochar positively influences the AD process, particularly by influencing microbial communities, reducing VFA levels, and mitigating the negative effects of ammonia. The research also highlights areas for further research in applying biochar for anaerobic digestion.
  • 547
  • 24 May 2023
Topic Review
Computational Design and Virtual Reality Tools
Virtual reality was investigated with various computational design approaches to improve users’ ability to communicate, share, and grasp the design’s requirements to better conceptualize ideas during various design and review stages.
  • 335
  • 23 May 2023
Topic Review
Hydrogen Storage
Hydrogen is one of the main energy carriers playing a prominent role in the future decarbonization of the economy. However, several aspects regarding the transport and storage of this gas are challenging. The intermediary conversion of hydrogen into high-density energy molecules may be a crucial step until technological conditions are ready to attain a significant reduction in fossil fuel use in transport and the industrial sector. 
  • 596
  • 18 May 2023
Topic Review
Interactive Innovation Balance Structure in Green Manufacturing
Maturity and innovation degree of green manufacturing exploratory and exploitative innovation technologies can effectively measure the degree of innovation balance of the enterprise. Strengthening the scientific research layer to adopt green manufacturing technology innovation research and development for the enterprise and reducing the “conflict” will promote the enterprise to engage in exploratory innovation, which in turn will encourage the decision of enterprise interactive innovation balance. The support layer actively searches for information and supports the green manufacturing innovation ecosystem with information, funding, and other innovation resources, thus facilitating enterprises to engage in interactive innovation balance.
  • 381
  • 18 May 2023
Topic Review
Water Reuse Treatment Technologies
Treating water for water reuse typically involves treating wastewater in several steps consisting of preliminary treatment, primary treatment, and secondary treatment. Tertiary treatment and advanced treatment may be needed for water reuse purposes. 
  • 1.0K
  • 18 May 2023
Topic Review
Urban Building Energy Modeling Using a Place-Based Approach
Urban building energy models present a valuable tool for promoting energy efficiency in building design and control, as well as for managing urban energy systems. However, the current models often overlook the importance of site-specific characteristics, as well as the spatial attributes and variations within a specific area of a city. This approach allows for a more in-depth understanding of the interactions behind spatial patterns and an increase in the number and quality of energy-related variables.
  • 348
  • 15 May 2023
Topic Review
Nature-Based Solutions on Urban Stormwater Management
Urban stormwater management is a critical challenge facing cities globally, with natural-based solutions (NBS) emerging as a promising approach for mitigating the impacts of urban stormwater runoff.
  • 262
  • 11 May 2023
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