Recent advances in biogas upgrading to value added products: A review

Quarrying and processing of granite produce large amounts of waste residues. Besides being a loss of resources, improper disposal of these wastes results in pollution of the soil, water and air around the dumpsites. The main components of granite waste are quartz, feldspars and a small amount of biotite. Due to its hard and dense texture, high strength, corrosion resistance and wear resistance, granite waste may be recycled into building materials, composite materials and fine ceramics, effectively improving their mechanical properties and durability. By using the flotation process, high value-added products such as potash feldspar and albite may be retrieved from granite waste. Also, granite waste has the potential for application in soil remediation and sewage treatment. This review presents recent advances in granite waste reutilization, and points out the problems associated with its use, and the related countermeasures, indicating the scale of high value-added reutilization of granite waste.

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Pretreatment methods of lignocellulosic wastes into value-added products: recent advances and possibilities

Biomass Conversion and Biorefinery ◽

10.1007/s13399-020-00722-0 ◽

2020 ◽

Cited By ~ 2

Author(s):

Diego Batista Meneses ◽

Gabriela Montes de Oca-Vásquez ◽

José Roberto Vega-Baudrit ◽

Mauricio Rojas-Álvarez ◽

Joshua Corrales-Castillo ◽

...

Keyword(s):

Value Added ◽

Lignocellulosic Wastes ◽

Recent Advances ◽

Value Added Products

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Recent Advances in Enzymatic Conversion of Lignin to Value Added Products

Enzymes for Solving Humankind's Problems ◽

10.1007/978-3-030-58315-6_14 ◽

2020 ◽

pp. 439-471

Author(s):

Giang-Son Nguyen ◽

Anna Sofia Lewin ◽

Francesca Di Bartolomeo ◽

Alexander Wentzel

Keyword(s):

Value Added ◽

Enzymatic Conversion ◽

Recent Advances ◽

Value Added Products

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Recent advances in CO2 hydrogenation to value-added products — Current challenges and future directions

Progress in Energy and Combustion Science ◽

10.1016/j.pecs.2021.100905 ◽

2021 ◽

Vol 85 ◽

pp. 100905

Author(s):

Samrand Saeidi ◽

Sara Najari ◽

Volker Hessel ◽

Karen Wilson ◽

Frerich J. Keil ◽

...

Keyword(s):

Value Added ◽

Co2 Hydrogenation ◽

Future Directions ◽

Recent Advances ◽

Value Added Products

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Recent Advances in Chemical Recycling of Polyethylene Terephthalate Waste into Value Added Products for Sustainable Coating Solutions- Hope Vs Hype

Materials Advances ◽

10.1039/d1ma01112j ◽

2022 ◽

Author(s):

Krishanu Ghosal ◽

Chinmaya Nayak

Keyword(s):

Polyethylene Terephthalate ◽

Daily Life ◽

Value Added ◽

Chemical Recycling ◽

Dinner Table ◽

Recent Advances ◽

Value Added Products

In the current era of globalization, plastics are an indispensable part of our daily life; from morning toothbrush to night dinner table, plastics are everywhere in our daily life. In...

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Recent advances in the pretreatment of lignocellulosic biomass for biofuels and value-added products

Current Opinion in Green and Sustainable Chemistry ◽

10.1016/j.cogsc.2019.08.001 ◽

2019 ◽

Vol 20 ◽

pp. 18-24 ◽

Cited By ~ 23

Author(s):

Hamayoun Mahmood ◽

Muhammad Moniruzzaman ◽

Tanveer Iqbal ◽

Maria Jafar Khan

Keyword(s):

Lignocellulosic Biomass ◽

Value Added ◽

Recent Advances ◽

Value Added Products

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OPPORTUNITIES FOR STRATEGIC DEVELOPMENT OF BIO-ECONOMY IN THE FOOD AND TOURISM INDUSTRY

Knowledge International Journal ◽

10.35120/kij28051681g ◽

2018 ◽

Vol 28 (5) ◽

pp. 1681-1684

Author(s):

Georgi Toskov ◽

Ana Yaneva ◽

Stanko Stankov ◽

Hafize Fidan

Keyword(s):

National Level ◽

Value Added ◽

Tourism Industry ◽

Small Companies ◽

Food Sector ◽

Strategic Development ◽

Innovation Potential ◽

Wide Range ◽

Foreign Brands ◽

Value Added Products

The European Commission defines the bioeconomy as "the production of renewable biological resources and the conversion of these resources and waste streams into value added products, such as food, feed, bio-based products and bioenergy. Its sectors and industries have strong innovation potential due to their use of a wide range of sciences, enabling and industrial technologies, along with local and implied knowledge." The Bulgarian food industry faces a lot of challenges on the local and national level, which have direct influence on the structure of the production companies. Most of the enterprises from the food sector produce under foreign brands in order to be flexible partners to the large Bulgarian retail chains. The small companies from the food sector are not able to develop as an independent competitive producer on the territory of their local markets. This kind of companies rarely has a working strategy for positioning on new markets. In order to consolidate their already built positions for long period of time, the producers are trying to optimize their operations in a short term. However, the unclear vision of the companies for the business segment does not allow them to fully develop. Tourism in Bulgaria is a significant contributor to the country's economy.

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