Oil shale mining and processing impact on landscapes in north-east Estonia

Toomik, Arvi; Liblik, Valdo

doi:10.1016/s0169-2046(98)00066-8

Cited by 27 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Mining and processing of the oil-shale will significantly disturb the environment, as a result of pollution by dust particles and ash derived from the oil shale [18,19]. Valorisation of these valuable by product will reduce the environmental impact and will make oil shale development economically feasible for energy production in the future [20].…”

Section: Introductionmentioning

confidence: 99%

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Miyah¹,

Idrissi²,

Zerrouq³

2014

IJIRSET

View full text Add to dashboard Cite

This article presents two aspects environnementals: valorization of oil shale ash (OSA) of oil industry on the one hand, and on the other hand to study the effectiveness of cation adsorption of dye such as the Methylene blue (BM) on material (OSA).In this context, we carried out a parametric study of adsorption, in particular, the time of contact, the pH, the amount of the adsorbent, the temperature and the stirring velocity. A study of the kinetics of adsorption was carried out by two models: pseudo-first order and pseudo-second order, and a modeling by the isotherms of adsorption while basing itself on the models of Langmuir and Frendlich. The maximum capacity of adsorption of BM on OSA is of 2,464 mg/g, for a concentration of BM of 5 mg/L, an amount of adsorbent of 2 g/L. Material OSA was characterized by several methods such as diffraction of x-ray (DRX), electronic scan microscopy (MEB), electronic microscopy in transmission (MET), x-ray fluorescence (FX), and the infra-red Spectroscopy with transforms of Fourier (FTIR). In addition, the economic aspect of the use of OSA makes important the re-use of these materials considering their capacity to regenerate itself.

show abstract

Section: Introductionmentioning

confidence: 99%

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Miyah¹,

Idrissi²,

Zerrouq³

2014

IJIRSET

View full text Add to dashboard Cite

show abstract

“…Mining and processing of the oil-shale will significantly disturb the environment, as a result of pollution by dust particles and ash derived from the oil shale [4,5]. Valorisation of these valuable by products will reduce the environmental impact and will make oil shale development economically feasible for energy production in the future.…”

Section: -Introductionmentioning

confidence: 99%

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Nabih

Kada²,

Hmiri

et al. 2014

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. We focused our research on recycling industrial wastes, fly ash (F.A), bottom ash (B.A) and oil shale ash (S.A) in cement production. The study concerns physico-chemical characterization of these products and the influence of their addition on the mechanical proprieties of the CPJ 45 cement. XRF allowed us to rank the three additives used according to their contents on major oxides. Coal ashes belong to the class F, and thus possess poozzolanic properties and oil shale ash belongs to the class C and possesses hydraulic and poozolanic properties. The crystalline phases constituting each ash were analysed by XRD. We observe in bottom ash the presence of quartz and mullite. The same crystals are found in fly ash with hematite and magnetite. Oil shale ash is composed of quartz, anhydrite, gehlenite, wollastonite and periclase. The microstructures of fly ash and bottom ash were studied using SEM. The bottom ash was composed respectively of fine particles that are generally irregularly shaped, their dimensions are between 5 and 28ȝm and of big particles(300 ȝm). The EDX analysis coupled with an electronic microscope provided some information about the major elements that constitute our samples. The dehydrations of anhydrous and three days hydrated cement were examined by DSC. For hydrated cements we noticed endothermic peaks related to the dehydration of CSH, CH and decomposition of carbonates. The study of the mechanical properties of CPJ 45 cement by adding different proportions of fly ash, bottom ash and oil shale ash helped clarifying the percentage of ash that leaded to improve the 28 days mechanical strength. The results show that the cements studied have their maximum mechanical resistance with the addition at 7% of fly ash or 10% of oil shale ash.

show abstract

“…This rock provides for the bulk of Estonia's electricity production as well as some industrial chemicals (Öpik, 1989; Raukas 2004). Since commercial mining began in 1916, hills of semicoke and ash tailings from oil shale mines have accumulated throughout northeastern Estonia, particularly around the city of Narva (Toomik and Liblik, 1998; Brendow, 2002). Environmental degradation resulting from mine tailings hills includes sulfur and toxic metal contamination of soils and groundwater and the deterioration and destruction of forests (United Nations Economic Commission for Europe, 2001; Teinemaa et al, 2002).…”

mentioning

confidence: 99%

Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills

Shefferson

Kull

Tali

2008

American J of Botany

108

View full text Add to dashboard Cite

Northeastern Estonia is home to extensive oil shale mines. Associated with these are desolate and environmentally damaging hills of ash and semicoke tailings. Interestingly, some of the first plants to colonize these hills are rare orchids. Here, we assess the identities of the mycorrhizal fungi associated with these orchids, in particular Epipactis atrorubens, Orchis militaris, and Dactylorhiza baltica, and compare them with mycorrhizal fungi from orchids from pristine habitat. Epipactis atrorubens associated with the widest breadth of fungi, including unnamed members of the basidiomycete family Tulasnellaceae and the potentially ectomycorrhizal ascomycetes Trichophaea woolhopeia and Geopora cooperi. Orchis militaris also associated with unnamed members of the Tulasnellaceae. Dactylorhiza baltica associated with Ceratobasidium albasitensis. In Epipactis and Orchis, the same fungi associated with plants in the pristine habitat as with those on ash hills. The tulasnelloid and ceratobasidioid fungi mycorrhizal with these orchids appear closely related to common orchid mycorrhizal fungi, while one of the ascomycetes mycorrhizal with E. atrorubens is closely related to a mycorrhizal fungus with E. microphylla. Our results suggest that these orchids and their fungi are not limited to pristine habitats and that environmentally polluted sites may present novel habitats that may be exploited for endangered plant conservation.

show abstract

Oil shale mining and processing impact on landscapes in north-east Estonia

Cited by 27 publications

References 0 publications

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills

Contact Info

Product

Resources

About

Oil shale mining and processing impact on landscapes in north-east Estonia

Cited by 27 publications

References 0 publications

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ45cement

Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills

Contact Info

Product

Resources

About

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement