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Thermal analysis in sustainable development

Thermoanalytical study of faveleira seeds (Cnidoscolus quercifolius)

Journal of Thermal Analysis and Calorimetry
Authors: J. C. O. Santos, J. P. Dantas, C. A. Medeiros, P. F. Athaíde-Filho, Marta M. Conceiçăo, J. R. Santos Jr., and A. G. Souza
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, does not correlate in any way with the ideas of sustainable development, currently taking hold in a growing number of laboratories, in the form of the principles of Green Analytical Chemistry (GAC). According to the principles, one should (1) prefer

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Journal of Thermal Analysis and Calorimetry
Authors: L. Núñez-Regueira, J. A. Rodríguez-Añón, J. Proupín-Castiñeiras, and O. Núñez-Fernández

Summary Soil productivity and health were analyzed using an experimental procedure designed for this kind of studies. The continuous loss of fertile soil obliged the Food and Agriculture Organization (FAO) to declare soil as an item to be protected as a support of the world society welfare. The procedure here described is in accordance with the premises necessary for a rational and sustainable development of soil and the resources it contains and can be used to study any soil all over the world. The study was carried out using soil microbial population as a bioindicator of soil health. Microbial activity was followed using the microcalorimetric technique. The microcalorimetric study can be complemented through a deep analysis of soil physical, chemical and biological properties together with a study of the environmental properties that have a strong influence on the afore mentioned properties and, thus on the microbial activity in soil. The different properties follow different ASTM, ISS/FAO, USDA, etc. well defined standards. The experimental procedure reported in this work could be very helpful to create a data basis that could be useful to quantify and control soil potentiality or design soil decontamination and recovery systems.

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Abstract  

The sustainable development of agricultural waste is nowadays a main strategy in producing neutral CO2 energy and metal removal technologies. In Egypt, large amounts of rice straw are annually burnt in the open air causing severe air pollution that could be directed to co-firing and adsorption technologies. On bench scale, rice straw was positively contributed in a clean and smokeless co-firing process with methanol due to the oxidizing effect of the alcohol. The co-firing temperature control is vital to develop the adsorptive character of the residual ash and to avoid prolonged time needed to improve the physical properties of the rice straw if applied directly as a biosorbent. The consumed methanol in the process ranges from 0.15 to 0.3 liter per each kg of straw depending on its compaction. The grossed heat value from such process may drive steam generator for electricity. The residual ash was subsequently cross-linked in uranium and heavy metals adsorption tests from solutions. The porous texture of the residual ash and the amorphous nature of the silica along with potassium content provide a suitable condition for uranium immobilization especially if phosphorus or vanadium exist. The resulted chemical precipitate is analogues in composition to meta-ankoleite (KUO2PO4·3H2O) or hydrated carnotite (K2(UO2)2V2O8)·1-3H2O respectively. The XRD data of the latter form show an enhancement in crystallinity of the amorphous precipitate with the heated samples.

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International Symposium on Sustainable Development , Sarajevo, June 9–10, 2009 , 150 – 156 . [5] A. Măicăneanu , H. Bedelean , M. Stanca , Natural

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There are many uncertainties in “global” climate changes (direction, rate, seasonal and geographical distribution) and in the prediction of their environmental, ecological, economical and even social consequences. All prognoses, however, forecast the increasing risk, frequency, duration and intensity (seriousness) of irregular, extreme climatic and hydrological events and moisture situations. In their prevention or reduction the water storage function of soil has special significance. Consequently, all efforts have to be taken for its more efficient use: helping the infiltration and storage of water in soils. Permanent soil moisture control may help to prevent, or at least reduce undesirable soil processes and their harmful economical/ecological/environmental/social consequences; and may fulfil the conditions of the “quality maintenance” of soil, this “conditionally renewable” natural resource, which is an important element of sustainable development, including the adaption to and mitigation of climate changes.

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. Hermanská, A. , Streda , T. & Chloupek , O. , 2015 . Improved wheat grain yield by a new method of root selection . Agronomy for Sustainable Development. 35 . 195 – 202

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. Hermanská , A. , Streda , T. & Chloupek , O. , 2015 . Improved wheat grain yield by a new method of root selection . Agronomy for Sustainable Development. . 35 . 195 – 202

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–Boston–London . V árallyay , G. , 1998 . Multifunctional soil management for sustainable development in Hungary . Agrokémia és Talajtan . 47 . 7 – 22 . V árallyay , G y

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. ( 2011 ) Biofuels from algae for sustainable development . Appl. Energy 88 : 3473 – 3480 . Deniel , M. , Haarlemmer , G. , Roubaud , A. , Weiss-Hortala , E. , Fage , J

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