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Value added

About: Value added is a research topic. Over the lifetime, 714 publications have been published within this topic receiving 12658 citations. The topic is also known as: added value.

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Journal ArticleDOI
TL;DR: Recent advances in lignocellulosic biomass processing and analysis from aBiorefining perspective are presented and existing industrial biomass processing applications are discussed and examined within a biorefinery context.

772 citations

Journal ArticleDOI
TL;DR: A review of the available literature in this field of active research and identifies the gaps that need further attention can be found in this article, where a number of pilot, demonstration and commercial plants processing various types of plastic wastes in Germany, Japan, USA, India, and elsewhere.
Abstract: The present rate of economic growth is unsustainable without saving of fossil energy like crude oil, natural gas or coal. Thus mankind has to rely on the alternate/renewable energy sources like biomass, hydropower, geothermal energy, wind energy, solar energy, nuclear energy, etc. On the other hand, suitable waste management strategy is another important aspect of sustainable development. The growth of welfare levels in modern society during the past decades has brought about a huge increase in the production of all kinds of commodities, which indirectly generate waste. Plastics have been one of the materials with the fastest growth because of their wide range of applications due to versatility and relatively low cost. Since the duration of life of plastic products is relatively small, there is a vast plastics waste stream that reaches each year to the final recipients creating a serious environmental problem. Again, because disposal of post consumer plastics is increasingly being constrained by legislation and escalating costs, there is considerable demand for alternatives to disposal or land filling. Advanced research in the field of green chemistry could yield biodegradable/green polymers but is too limited at this point of time to substitute the non-biodegradable plastics in different applications. Once standards are developed for degradable plastics they can be used to evaluate the specific formulations of materials which will find best application in this state as regards their performance and use characteristics. Among the alternatives available are source reduction, reuse, recycling, and recovery of the inherent energy value through waste-to-energy incineration and processed fuel applications. Production of liquid fuel would be a better alternative as the calorific value of the plastics is comparable to that of fuels, around 40 MJ/kg. Each of these options potentially reduces waste and conserves natural resources. Plastics recycling, continues to progress with a wide range of old and new technologies. Many research projects have been undertaken on chemical recycling of waste plastics to fuel and monomer. This is also reflected by a number of pilot, demonstration, and commercial plants processing various types of plastic wastes in Germany, Japan, USA, India, and elsewhere. Further investigations are required to enhance the generation of value added products (fuel) with low investments without affecting the environment. The paper reviews the available literature in this field of active research and identifies the gaps that need further attention.

688 citations

Journal ArticleDOI
TL;DR: In this article, a need statement is visualised based on a holistic concept of food production for the vegetable industry, recording occurrence, quantities and utilisation of the residual products, and a literature survey, covering more than 160 articles from all over the world, plus their own investigations summarises the latest knowledge in the above-mentioned field and outline prospects for future economic treatment of vegetable co-products.

519 citations

Journal ArticleDOI
TL;DR: The global production of lignin is approximately 100 million tonnes/year valued at USD 732.7 million in 2015 and it is expected to reach $913.1 million by 2025 with compound annual growth rate (CAGR) of 2.2% as discussed by the authors.

498 citations

Journal ArticleDOI
TL;DR: A review of the developments in processes and products developed for the value addition of cassava bagasse through biotechnological means can be found in this paper, where the authors reviewed the development in processes, products, and processes and processes for value addition.

491 citations

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