Results 21 to 30 of about 731,861 (252)

Energy Harvesting Opportunities in Geoenvironmental Engineering

open access: yesEnergies, 2023
Geoenvironmental engineering involves defining solutions for complex problems, such as containment systems management, contaminant transport control, wastewater management, remediation of contaminated sites and valorization of geomaterials and wastes. In
Leonardo Marchiori   +6 more
doaj   +1 more source

Environmental Engineering [PDF]

open access: yes, 2020
Abstract Bees engineer the environment. Their foraging activities change the floral composition near the nest, thereby changing the niches of other species that depend on the vegetation for food and shelter. Changes in floral abundance and composition resulting from their activities may also benefit them directly or descendant colonies ...
openaire   +2 more sources

The Use of Lumbricus Rubellus Earthworm Effect in Composting Process of Musa Paradisiaca L. Peel Waste

open access: yesJurnal Presipitasi, 2021
Conventional organic waste composting is one of the processing of organic waste that produces fertilizer. However, the conventional composting process for organic waste lasts 1-3 months.
Vely Kukinul Siswanto   +4 more
doaj   +1 more source

Boundary-domain integral method and homotopy analysis method for systems of nonlinear boundary value problems in environmental engineering

open access: yesArab Journal of Basic and Applied Sciences, 2020
In this paper we present the development of numerical methods for two problems in chemical engineering: adsorption of carbon dioxide into phenyl glycidyl ether and diffusion and reaction processes in a porous catalyst.
M. A. AL-Jawary, G. H. Rahdi, J. Ravnik
doaj   +1 more source

Response Surface Method to Optimize the Treatment of Cd2+-Containing Wastewater with Low-Grade Iron Tailings Loaded with Chitosan

open access: yesKuangchan zonghe liyong, 2023
This is a paper in the field of mineral materials and environmental engineering. In this paper, cadmium-containing wastewater was used as the research object, and low-grade iron tailings loaded with chitosan was used as the adsorbent to compare the ...
Xiaoli Yuan   +6 more
doaj   +1 more source

Feasibility of Waste Engine Oil Electrooxidation with Ni-Co and Cu-B Catalysts

open access: yesEnergies, 2022
To implement a circular economy policy, methods of using waste products as a starting point for other technologies are constantly researched. One of the waste products that should be disposed of after use is waste engine oil (WEO).
Paweł P. Włodarczyk   +1 more
doaj   +1 more source

A new method for the determination of naphatylamines in workplace air for occupational exposure assessment

open access: yesMedycyna Pracy, 2021
Background Naphthylamine (NA), i.e., 1-naphthylamine (1-NA) and 2-naphthylamine (2-NA) and its salts (2-naphthylamine hydrochloride and 2-naphthylamine acetate) are colorless crystalline solids.
Anna Jeżewska   +2 more
doaj   +1 more source

Reversing ocean acidification along the Great Barrier Reef using alkalinity injection

open access: yesEnvironmental Research Letters, 2021
The Great Barrier Reef (GBR) is a globally significant coral reef system supporting productive and diverse ecosystems. The GBR is under increasing threat from climate change and local anthropogenic stressors, with its general condition degrading over ...
Mathieu Mongin   +4 more
doaj   +1 more source

Environmental Engineering [PDF]

open access: yes, 2015
Environmental engineering is the application of science and engineering principles to the design of environmental protection and remediation strategies using physical, chemical, and biological treatment methods, all within a regulatory framework. Environmental engineers aim to minimize the adverse effects of human activities on the natural environment.
openaire   +1 more source

Study on Temporal and Spatial Characteristics of Heavy Metal Pollution in Coal Gangue Piles in Mining Area

open access: yesKuangchan zonghe liyong, 2022
With the massive mining of coal resources, a large amount of coal gangue has been accumulated on the surface to form gangue hills. Gangue hills encroach on a large amount of land while releasing a variety of harmful heavy metal elements, which can be ...
Jiefeng Li
doaj   +1 more source

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