نتایج جستجو برای: coal reclamation

تعداد نتایج: 35471  

2011
K. P. Arent

1. Significance of Land Reclamation 2. Evaluation of Possible Expansion of Arable Lands 3. Peculiarities and Principles of Efficiency Evaluation 4. History of the Question 5. Expenses for Construction of Reclamation Systems and Land Development 6. Running Costs. Income 7. Methods of Economic Efficiency Evaluation 7.1 Traditional Methods 7.2 Discounting methods. 7.3 Uncertainty and Risk Calculat...

2010
Sergio Barredo-Damas María Isabel Alcaina-Miranda María Isabel Iborra-Clar José Antonio Mendoza-Roca

Please cite this article as: Barredo-Damas S., Alcaina-Miranda M. I., Iborra-Clar M. I. and Mendoza-Roca J. A., (2010), Application of nanofiltration/reverse osmosis membranes to textile effluents aiming its reclamation and reuse: influence of operating conditions, Chemical Engineering Transactions, 21, 1027-1032 DOI: 10.3303/CET1021172 Application of Nanofiltration/Reverse Osmosis Membranes to...

J. Vahdati Khaki O. Ganji, S. Raygan

One of the most important methods to produce sponge iron is coal based reduction of iron ore. Direct reduction methods based on coal are being improved due to the abundance of coal sources and its lower cost in comparison with natural gas. Volatile materials in coal play an important role in the reduction of iron oxides. In this study, noncoking coal with high volatile materials from Iran and c...

Journal: :Journal of water and health 2012
Laura Alcalde Montserrat Folch Josefina C Tapias

A wastewater treatment and reclamation facility in north-east Spain was monitored over 1 year to determine the occurrence and concentrations of different microbial indicators (Escherichia coli, fecal enterococci, somatic bacteriophages and spores of sulfite-reducing clostridia). The removal of the indicators and its relationships through the wastewater treatment and reclamation trains were eval...

2013
Eduardo L. Mariño Laura Alcalde Montserrat Folch Josefina C. Tapias

Reclamation and reuse of wastewater require the use of tools that minimize risks to health and natural ecosystems. There are various types of such tools, among which HACCP (hazard analysis and critical control points) and barrier systems are gaining importance. The research reported here aims to determine and evaluate the most efficient combinations of different treatment systems—barriers—for t...

Journal: :Biodiversitas 2022

Abstract. Mulyadi, Ruhiyat D, Aipassa MI, Hardwinanto S. 2022. The growth of Paraserianthes falcataria at three different plant ages and soil thickness classes on reclamation sites post-coal mining areas in East Kalimantan, Indonesia. Biodiversitas 23: 1930-1937. Sengon (Paraserianthes (L.) Nielsen syn. Falcataria moluccana (Miq.) Barneby & J.W. Grimes) is a fast-growing species commonly us...

Mojtaba Mirzaeian, Peter. J Hall

Differential scanning calorimetry (DSC), temperature programmed desorption mass spectrometry (TPD-MS) and small angle neutron scattering (SANS) were used to investigate CO2 uptake by the Wyodak coal. Adsorption of carbon dioxide on Wyodak coal was studied by DSC. The exotherms evident at low temperatures are associated with the uptake of CO2 suggesting that carbon diox...

Journal: :Enviroscienteae 2022

This study aims to analyze the process of soil formation on overburden material in reclamation area 2013 (9 years), 2015 (7 and 2018 (4 years) support success sustainable reclamation, relationship between planting age, morphology climate conditions that can affect overburden. The research was conducted at a coal mining company located Tanah Bumbu Regency, South Kalimantan Province. method used ...

2017
Bana Bihari Jana

There has been a paradigm shift towards reclamation of wastewater from high cost to low cost effective technology for treatment of sewage and resource utilization for economy driven activities.Under appropriate conditions, sewage fed fisheries would reduce the cost of fish production by utilizing the sewage induced natural plankton and become cost effective because of savings through chemical f...

1994
Jonathan E. Cook Alexander L. Wolf Benjamin G. Zorn

The automatic reclamation of storage for unreferenced objects is very important in object databases. Existing language system algorithms for automatic storage reclamation have been shown to be inappropriate. In this paper , we investigate methods to improve the performance of algorithms for automatic storage reclamation of object databases. These algorithms are based on a technique called parti...

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