Environmental Management
1. Mitigation of environmental impacts in ornamental rock and limestone aggregate quarries in arid and semi-arid areas

M.A. Peñaranda Barba; V. Alarcón Martínez; I. Gómez Lucas; J. Navarro Pedreño

Volume 7, Issue 4 , Autumn 2021, , Pages 565-586

http://dx.doi.org/10.22034/gjesm.2021.04.06

Abstract
  BACKGROUND AND OBJECTIVES: Open-pit mining is an important activity to obtain mineral resources that supply society with raw materials to improve people's quality of life. However, this extractive activity causes negative environmental impacts and, it is therefore necessary to identify and evaluate these ...  Read More

Environmental Engineering
2. Characteristics and combustion kinetics of fuel pellets composed of waste of polyethylene terephthalate and biomass

K. Manatura; U. Samaksaman

Volume 7, Issue 4 , Autumn 2021, , Pages 625-642

http://dx.doi.org/10.22034/GJESM.2021.04.09

Abstract
  BACKGROUND AND OBJECTIVES: The needs of fuel pellets from varied feed stocks have opened up opportunities and challenges for pellets production from non-woody biomass. Wastes of plastic recycling and wood sawing contained a high potential for energy source and suited for pelletizing as a solid fuel.  ...  Read More