هل ستصبح شريكنا القادم ؟
Recently, several microorganisms have been shown to be capable of directly solubilizing low-rank coals. This bioextract has a high molecular weight and is water soluble, but is not useful as a liquid fuel. This paper presents the results of studies to biologically solubilize coal and convert the solubilized coal into more useful compounds. Preliminary experiments have been conducted to …
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Biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, and microorganisms screened in this study can be potentially used as …
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Most literature sources describe the processes of carbon biosolubilization with the participation of bacteria or filamentous fungi, while to our knowledge the use of streptomyces for this purpose...
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Microbial solubilization of rock phosphate (RP) considered being an alternative to chemical phosphorous (P) fertilizer, causing high costs and environmental pollution. This work aimed to isolate efficient phosphate solubilizing strains from the estuary region of the Mahanadi river to check their RP solubilizing efficiency, and the mechanisms were discussed. Two …
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There has been alarming depletion of manganese (Mn) reserves owing to the ongoing extensive mining operations for catering the massive industrial demand of this element. Moreover, the mining operations have been leading to the generation of Mn-rich waste, thereby contaminating both terrestrial and aquatic bodies. The current scenario necessitates the …
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الفحم هو صخر باللون الأسود أو البني اللون، وهو قابل للاحتراق والاشتعال، وبالتالي يوّلد طاقة على شكل حرارة، ومن أهم استخدامات الفحم أنه يمكن استعمال الحرارة الصادرة عن احتراق الفحم في مجال التدفئة.
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Biosolubilization aims to reduce impurities in coal, clear out lignite from mercury and sulfur or nitrogen that may form harmful oxides during the combustion of the material. Biosolubilization goes together with biodesulfurization—F. oxysporum LOCK 1134 is able to reduce sulfur content in almost 50% (Table 1).
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The most efficient biosolubilization process was achieved after substrate processing with 5 N HNO 3, in the presence of 10 g/L sucrose and 50 g/L lignite, where the resultant concentration of biosolubilized lignite was 15 times higher as compared to the results obtained using crude coal.
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Biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, and microorganisms screened in this study can be potentially used as biological catalysts for the conversion ofcoal into valuable chemicals.
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Clean coal technologies (e.g. coal biosolubilization) are of essential value, especially in Europe, where coal is the national wealth and other energy sources like crude oil are not available. Fusarium oxysporum LOCK 1134, the strain isolated from brown coal, efficiently biosolubilizes lignite.
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يُقسم الفحم الحجري (بالإنجليزية: Coal) إلى أربعة أنواع رئيسية وهي: أنثراسايت، وبيتوميني، والفحم تحت القاري، واللجنايت، بناءً على نوع ونسبة الكربون التي يحتويها الفحم، وتتفاوت مقدار كمية الطاقة الحرارية التي يمكن أن ...
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This work paves the way to utilize lignitic coals for the environment friendly and low-cost production of humic acids by fungal biosolubilization as an alternate to chemical methods. View Show ...
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شهدت سوق الفحم في 2023 تطورات معاكسة لما كانت عليه في عام الحرب الأوكرانية الأول (2022)، إذ هدأت الأسعار كثيرًا، رغم ارتفاع الطلب العالمي إلى مستوى قياسي.
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تعد صناعة الطاقة عنصرًا صغيرًا ولكنه حاسم في الاقتصاد، حيث إنها مسؤولة عن نحو 3 % من الناتج المحلي الإجمالي لبولندا، وتعتمد الطاقة- وخاصة الكهرباء- على الفحم اعتمادًا كبيرًا، وتعد بولندا ...
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The most efficient biosolubilization process was achieved after substrate processing with 5 N HNO 3, in the presence of 10 g/L sucrose and 50 g/L lignite, where the resultant …
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Biosolubilization aims to reduce impurities in coal, clear out lignite from mercury and sulfur or nitrogen that may form harmful oxides during the combustion of the material. …
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Biosolubilization is one of the safest and economical way to consume these LRCs for the harvest of humic and fulvic acids for industrial applications. Present studies deal with solubilization of coal samples from five different mines of Punjab, Pakistan by indigenously isolated fungus.
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Most literature sources describe the processes of carbon biosolubilization with the participation of bacteria or filamentous fungi, while to our knowledge the use of streptomyces …
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Products of biosolubilization were characterized by increased levels of oxygen and nitrogen, reduced concentrations of carbon and sulfur as well as increased (compared to the …
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Recently, several microorganisms have been shown to be capable of directly solubilizing low-rank coals. This bioextract has a high molecular weight and is water soluble, but is not useful as a …
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الفحم النباتي: إن وجود الأنسجة النباتية في الفحم النباتي والحجري يدل على أنهما من أصل نباتي. والفحم النباتي يصنعه الإنسان بتسخين الخشب, ولونه الأسود سببه وجود عنصر الكربون, أما كون الفحم النباتي أخف من الخشب فلأن الخشب ...
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Clean coal technologies (e.g. coal biosolubilization) are of essential value, especially in Europe, where coal is the national wealth and other energy sources like crude oil …
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الفحم الحجري هو وقود أحفوري غير متجدد يستعمل لإنتاج الكهرباء. تكمن مخاطر الفَحم الحجري في طرق التنقيب عنه تحت الأرض ، وفي احتراقه ما يشكل تهديدًا للبيئة وللمنقبين عنه. يُستعمَل الفَحم الحجري لإنتاج…
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1998 الموسوعة الجيولوجية الجزء الرابع KFAS الفحم كيفية تكوّن الفحم علوم الأرض والجيولوجيا مادة طبيعية تشبه الصخر، لونها بني إلى أسود، مشتقة من مادة نباتية من النوع الذي ينمو في الغابات. وتتجمع عادة في طبقات من الخث (Peat ...
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This work paves the way to utilize lignitic coals for the environment friendly and low-cost production of humic acids by fungal biosolubilization as an alternate to chemical methods. …
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Coal rank is an important factor in determining the extent and rate of microbial solubilization. Experiments in several laboratories indicate that low-rank coals, such as leonardite and lignite, are more amenable to biosolubilization than are the …
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فحم ليغنايت (Lignite): يطلق عليه أيضاً "الفحم البني"، هو الفحم الأقل درجة وأقل تركيز للكربون. يحتوي على قيمة تسخين منخفضة ومحتوى رطوبة مرتفع ويستخدم بشكل أساسي في توليد الكهرباء. استخدامات الفحم
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Biosolubilization is one of the safest and economical way to consume these LRCs for the harvest of humic and fulvic acids for industrial applications. Present studies deal with …
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Preliminary screening of factors (independent variables) that affect the biosolubilization process within culture of the K59 isolate was performed according to a seven-variable Plackett-Burman design Table 1.Factors included in the experiment comprised: concentration of main substrate (lignite), pretreatment of substrate with 8 N HNO 3, and …
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Coal rank is an important factor in determining the extent and rate of microbial solubilization. Experiments in several laboratories indicate that low-rank coals, such as leonardite and lignite, …
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Products of biosolubilization were characterized by increased levels of oxygen and nitrogen, reduced concentrations of carbon and sulfur as well as increased (compared to the nitric acid-pretreated carbon) atomic ratios H/C, O/C and N/O.
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