Results 61 to 70 of about 96,863 (233)

Anomaly and geochemistry of rare earth elements and yttrium in the late Permian coal from the Moxinpo mine, Chongqing, southwestern China [PDF]

open access: yes, 2014
The rare earth elements and yttrium (REY) of the K2 coal from the Moxinpo mine, Chongqing, were determined using inductively coupled plasma mass spectrometry (ICP-MS).
Dong Liu   +5 more
core   +1 more source

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

open access: yesEnergy Science &Engineering, EarlyView.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang   +11 more
wiley   +1 more source

Properties of concrete containing fly ash and bottom ash mixture as fine aggregate

open access: yesInternational Journal of Sustainable Engineering, 2021
About one-fifth of coal ash produced by the thermal power plants are the bottom ash, and the rest is fly ash. During the past few decades, studies are made to use either of them as the partial replacement of sand in concrete manufacturing.
Bharadwaj Nanda, Sudipta Rout
doaj   +1 more source

PENGARUH UKURAN PARTIKEL DAN WAKTU AKTIVASI COAL BOTTOM ASH TERHADAP KEMAMPUAN NETRALISASI AIR ASAM TAMBANG DAN ADSORBSI LOGAM CU [PDF]

open access: yes, 2016
ABSTRAKPenelitian ini dilakukan dengan tujuan untuk mengetahui kemampuan dan efisiensi coal bottom ash dalam menetralkan air asam tambang dan menyerap logam Cu.
Muhammad Dicka Andrian
core  

Toxic Metals in Dried Marine Fish and Implications for Human Health in Bangladesh and Exporting Countries

open access: yesFood Safety and Health, EarlyView.
This study assessed toxic metals in five dried marine fish species from Bangladesh. Although most metals were within safe limits, chromium (Cr) consistently exceeded FAO/WHO standards, especially at Kuakata Beach. The findings highlight localized contamination hotspots and species‐specific bioaccumulation, while risk assessment supports the safety and ...
Shapla Khatun   +7 more
wiley   +1 more source

Pemanfaatan Bottom Ash Batubara Menjadi Produk Briket Dengan Penambahan Arang Daun Jati [PDF]

open access: yes, 2015
The use of coal as the primary fossil fuels in Indonesia are increasingly widespread. Now, the use of coal is not only used for the power plant but also a wide range of industries. Resulting from the use of coal bottom ash which can still be used because
Indriyani, I. (Indriyani)   +2 more
core  

Technological Properties of Biocomposites Produced With Agro‐Industrial Castor Waste Applicable in the Thermal Insulation of Buildings

open access: yesPolymer Composites, EarlyView.
Biocomposites produced with agro‐industrial waste from castor hulls and pinewood bonded with urea‐formaldehyde adhesive, intended for application as thermal insulation in buildings. ABSTRACT The production of composite particleboards with agricultural waste has been the focus of many studies that aim to address environmental problems due to waste ...
Thamirys Andrade Lopes   +7 more
wiley   +1 more source

An Assessment of Tarong Bottom Ash for Use on Agricultural Soils [PDF]

open access: yes, 2004
Coal combustion by-products (CCBs), including fly ash and bottom ash, present a waste disposal problem in Australia due to a continuing demand for coal fired power.
Birch, C., Nairn, J. D., Wearing, C.
core  

Enhancement of PVDF Electroactive Phase Content—Effect of Plasticizer as an Additive

open access: yesJournal of Polymer Science, Volume 64, Issue 7, Page 1535-1552, 1 April 2026.
Preparation of spin‐coated PVDF composite films and the resulting crystalline phase transition (α → γ/β) triggered by cyclic‐ester EC interactions. ABSTRACT Polyvinylidene fluoride (PVDF) is a functional polymer with highly desirable electrical and piezoelectric properties.
Sivabalan Kaniapan   +3 more
wiley   +1 more source

Characterization, beneficiation, and rees extraction of coal bottom ash

open access: yesIndonesian Mining Journal, 2022
Rare earth elements are strategic materials. The elements have critical roles in meeting the needs of raw material for producing the modern industrial products. Most of the REE minerals is available in the form of associated minerals. One of them is coal.
Isyatun Rodliyah   +5 more
openaire   +1 more source

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