Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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PE is non-biodegradable and contributes significantly to the world's plastic waste products. • 3R methodology and recycling approaches are proposed as a solution to address PE pollution. • The chemical modification and structure of PE could enhance the degradation level. •
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Solid waste reforms and informal recycling in Enugu urban area, Nigeria. January 2009. Habitat International 33:93-99. DOI: 10.1016/j.habitatint.2008.05.006. Authors: Chidi Nzeadibe. University of ...
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1. Introduction. The environmental problem of solid waste has gradually become a worldwide issue. Out of the 2.01 billion tons of annual municipal solid waste generation worldwide, 33% remained uncollected, and the total amount was expected to grow to 3.40 billion tons by 2050 (Kaza et al., 2018).Solid waste result in problems on …
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Improper management of solid waste creates health problems and degrades the environment (air, water, and soil). The Indian state Uttarakhand is located in the Himalayan range. It is famous globally for its vast and rich biodiversity, hilly terrain, forest area, wildlife sanctuary, national parks, biosphere reserves, rivers, and tourist …
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Refurbishment and recycling of electronic devices have been identified, ... Feuilloley, P. & Silvestre, F. Aerobic biodegradation of polymers in solid-state conditions: a review of environmental ...
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Biodegradable plastics tend to undergo degradation through the actions of naturally occurring organisms, which leaves CO 2 and water as by-products. These by-products are considered safe and non-harmful to the environment [].These plastics are considered as an alternative to petroleum-derived plastics due to their unique …
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In biodegradation, enzymes and microbes showed comparatively their importance; the properties of the multi-molecular structure show that a single enzyme biodegradation microorganism cannot ensure complete biodegradation of biomass, and its usage as high value. ... Out of urban solid waste, the main fraction of it is KW, …
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Refuse-derived fuel (RDF) is also known as the mechanical biological treatment (MBT), most convenient method to utilize the non-biodegradable combustible material such as plastic, paper, labels, and cardboard which cannot be used for recycling purpose (Sharholy et al., 2008). It has higher calorific value thus can be used as a …
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Inadequate municipal solid waste (MSW) management has become a pressing concern, resulting in significant environmental contamination, particularly in developing countries. Composting has demonstrated its practicality and feasibility for addressing this issue; however, the lack of at-source solid waste separation remains a …
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The specific presence of glass, metals and plastics, makes it difficult to efficiently utilize the biodegradable fractions of this waste. Strategies such as anaerobic digestion and thermal gasification often require the fractionation of urban solid waste which results in the possible loss of biodegradable material while removing the inorganic matter.
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Solid Waste Management Practices in the Global South. Global municipal solid waste (MSW) generation rose from 1.3 billion tons in 2012 to 2.1 billion tons (0.74 kg/capita/day) as of 2016, which by 2050 is expected to increase by 70% to reach a total of 3.40 billion tons or 1.42 kg/capita/day [ 19 ].
DetailsThe modern solid waste management practices advocate material recycling, reduction, stabilization of solid waste prior to landfill disposal and energy recovery (Ionescu et al., 2015; Bong et al., 2017). However, these practices require proper certifications from government and may differ in developing and developed nations, rural …
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However, as the biodegradation process of plastics is expected to occur along with the management of urban solid waste, different factors need to be taken into account. The first one is the specific environment in which biodegradation would take place, which could include any valid end-of-life option with a high concentration of …
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Plastics established as an inevitable material in this modern era due to its easy production, processing, cheaper cost and easy use. High demand for plastics leads to tremendous increase in global production over the years. Overproduction of plastics leads to many harmful effects such as waste accumulation in landfill, serious air and water …
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Inadequate organic waste management leads to a plethora of problems such as environmental pollution, eutrophication, esthetic damage to urban landscape, greenhouse gases emission and effects on human health. Unwise and non-scientific disposal of wastes not only poses a grave threat to environmental quality but also results …
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In general, the traditional solid waste management (SWM) approach taken by municipal authorities for waste collection in urban areas must be enhanced to achieve the green and smart city goals.
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2. Mechanisms of biodegradation. Cellulose, lignocellulose and lignin are major sources of plant biomass and are polymeric substances; therefore, their recycling is indispensable for the carbon cycle [].Each of these polymer is degraded by a variety of microorganisms which produce scores of enzymes that work in tandem.
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Land application of urban/municipal solid waste (MSW) can be carried out as it is rich in organic matter and contains significant amount of recyclable plant nutrients. The presence of heavy metals and different toxics substances restricts its land use without processing. Vermicomposting of MSW, prior to land application may be a sustainable ...
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These synthetic plastic polymers are identified as the major urban solid waste that becomes environmental pollutants throughout the globe and ... Algal biodegradation is an arising biodegradation or up-recycling technique that is considered to be a better method than bacterial or fungi degradation method this is due to the non …
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The non-biodegradable fraction of solid waste could be used for construction and pavement processes. Overall the study emphasizes the paradigm shift of solid waste management concepts from linear economy to a circular economy following the "Zero Waste" concept. The study also explains the circular economy policies practiced …
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Rate of biodegradation of a horticultural pot. While recycling is one solution to divert waste from landfills and reduce the production of materials, only 9 percent of plastics made since …
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Solid waste reforms and informal recycling in Enugu urban area, Nigeria ... The findings revealed that 41% of waste materials generated by the informal sector are biodegradable and include polythene bags, …
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The additives used in solid urban waste composting such as cow dung and green manure recorded organic carbon content of 25.60 and 34.60 and C:N ratio of 30.11 and 11.23. Conclusion: The results of the study clearly indicate that the recycling of solid urban waste can transform garbage or municipal solid waste to enriched composts. This is ...
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The booming consciousness of the problems associated with biodegradable solid waste generation has driven the globe for the reutilization of organic waste wherever it is generated, lowering trash volumes and transportation costs. The present study deals with the zero waste approach that endorses the fostering of sustainable long-term socio …
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The increasing volume and complexity of waste associated with the modern economy is posing a serious risk to ecosystems and human health. Every year, an estimated 11.2 billion tonnes of solid waste is collected worldwide and decay of the organic proportion of solid waste is contributing about 5 per cent of global greenhouse gas emissions. Every year, …
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Globally, 90% of plastics are synthetic, made up of crude oil, natural gas, and coal. Even though plastic is extremely useful in our lives, its excessive use and mismanaged disposal are negatively affecting the ecosystem. The review highlights that the recycling process plays a critical role in controlling the problem of plastic pollution. …
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The current biodegradable waste management practices and the city's Environmental Recycling System are not enough to accommodate organic waste, given the rapid increase in waste generation. These issues on biowaste management need to be addressed by both and local government officials so that Baguio will maintain …
DetailsThe modern solid waste management practices advocate material recycling, reduction, stabilization of solid waste prior to landfill disposal and energy recovery (Ionescu et al., 2015; Bong et al., 2017). However, these practices require proper certifications from government and may differ in developing and developed nations, rural and urban ...
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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