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Alternatives analysis for mine waste relocation repositories
Published in A.A. Balkema, Tailings and Mine Waste 2000, 2022
B.R. Grant, M. Cormier, W.H. Bucher
Low permeability liner systems at the base of a repository are often used to intercept and collect leachate percolating down through the waste material. Leachate collection systems can consist of the following elements. Drainage Layer — A drainage layer immediately above a low permeable base liner, constructed similarly to that described above for cover systems, provides a pathway for the leachate to be removed from beneath the repository. This leachate is collected and disposed by evaporation, incineration, or transport to an approved waste management facility.Low Permeable Liner — A low permeable base liner beneath the drainage layer reduces the amount of leachate entering the subsurface beneath the repository. Low permeable liners can consist of recompacted clay and synthetic products such as geomembranes or GCL. Only geomembranes were considered further in this evaluation.
Debris and Solid Wastes in Flood Plain Management
Published in Saeid Eslamian, Faezeh Eslamian, Flood Handbook, 2022
Sama M. Al-Jubouri, Basma I. Waisi, Saeid Eslamian
Waste management refers to the collection, transport, processing, recycling or disposal, and monitoring of waste materials. Waste management links to substances generated due to human activity, the responsibility of reducing the effect of waste on health, environment, and aesthetics, and attempting to recover resources from waste. The volume of solid waste produced varies depending on several features such as food routine, living standards, commercial activities level, regional area, and seasons (Kaushik et al., 2009; Mundhe et al. 2014). Waste management is a wide term that includes gaseous, liquid, solid, or radioactive substances and each has special methods and areas of expertise (Kaushik et al., 2009). In most of the cities, the prevailing method for waste collection is via communal bins located at several points along the roads which sometimes turn into unofficial expanded collecting points. Municipal government authorities are responsible for the management of non-hazardous residential and institutional waste in the urban regions; however, the generator is responsible for the management of non-hazardous commercial and industrial waste (Goel, 2017). Understanding the issues implemented for solid waste management is required along with a vision affording eco-friendly, sustainable, and community-based solutions to waste management problems (Kaushik et al., 2009).
Waste Prevention: Its Impact and Analysis
Published in Biswaranjan Acharya, Satarupa Dey, Mohammed Zidan, IoT-Based Smart Waste Management for Environmental Sustainability, 2022
Arjyadhara Pradhan, Sarita Samal, Babita Panda, Biswaranjan Acharya
Recycling is one of the methods of waste management which refers to recovery of different types of materials like paper, glass, plastics, wood, and metals from the waste section. These materials can be further processed, fabricated, and converted to a new finer product. Recycling of materials greatly reduces the use of original raw materials used for a particular product. This in turn reduces overall cost to the company in procuring new raw materials. Even different waste materials can be recycled, and with small or other changes can be made into a new form that then goes on to be used in other processes.
Techno-economic analysis of biofuel production from construction and demolition wood waste
Published in Energy Sources, Part B: Economics, Planning, and Policy, 2023
Kimiya Rahmani Mokarrari, Soroush Aghamohamadi-Bosjin, Taraneh Sowlati, Shaghayegh Akhtari, Krishna Teja Malladi, Faisal Mirza
To that end, reusing and recycling instead of landfilling the C&D waste have been the focus of many studies (e.g., Yeheyis et al. 2013; Yuan, Shen, and Li 2011). Reusing refers to using the entire components again for the same purpose, while recycling entails crushing, grinding, or melting components, which can then go through another production process (Yeheyis et al. 2013). Reusing and recycling are considered as more sustainable waste management practices due to the reduction in pollution, energy consumption, and the need for landfilling and incineration (Yeheyis et al. 2013). It should also be noted that reusing and recycling practices can provide an opportunity to put valuable components of C&D waste, which account for 75% of the C&D waste, to use again (Yeheyis et al. 2013).
Indonesian efforts to overcome covid-19’s effects on its municipal solid waste management: a review
Published in Cogent Engineering, 2022
Mochamad Arief Budihardjo, Natasya Ghinna Humaira, Soraya Annisa Putri, Eflita Yohana, Bimastyaji Surya Ramadan, Badrus Zaman, Endro Sutrisno
Citizens should be more aware of waste management than they currently are. According to Vicente-Molina et al. (2013), environmental awareness can contribute to positive attitudes towards waste reduction. Educated citizens can become more knowledgeable about waste disposal, more responsible for the environment, and more aware of their potentially damaging actions than they were prior to being educated about waste management. The points that citizens must understand to reduce the amount of waste they generate are the 3 R principles of waste management, which will reduce waste generation by 30–40 % (Bir, 2020), household-scale composting, which can reduce total solid waste by approximately 38–55 % (Mbuligwe et al., 2002), meal planning, reusable mask use, and the prioritization of waste prevention whenever possible. To prevent the spread of the virus, citizens must understand the logic behind the separation of medical waste into color-coded biohazard bags, separate collection and disposal of household waste generated by COVID-19 patients, and enhanced personal hygiene standards (ISWA, 2020).
Application of different packing media for the biofiltration of gaseous effluents from waste composting
Published in Environmental Technology, 2022
Andrea Re, Marco Schiavon, Vincenzo Torretta, Elisa Polvara, Marzio Invernizzi, Selena Sironi, Paolo Caruson
Composting is an aerobic process widely adopted in waste management. The composting process allows for the biodegradation and biological stabilisation of the organic matter of the waste [18]; its main output is compost, a stable product that can be used as soil improver [19,20]. During the composting process, it is crucial to guarantee adequate chemical–physical conditions, such as pH, temperature and humidity, which have a strong influence on the development of the microbial communities, and a sufficient amount of air for the aerobic biodegradation process [21]. The first phase of the composting process is characterised by an intense biological activity and a simultaneous increase in the temperature. This part is followed by a fermentation phase, during which the degradation of the organic matter is performed by thermophilic microorganisms. Finally, a maturation phase takes place, characterised by the development of humification reactions with compost production [18]. This biological process can therefore support sustainable agricultural and horticultural practices, providing a more environmentally acceptable method compared to storage and incineration [22].