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685 Aktuelle Fachpublikationen zum Thema temperature

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Wet removal of sulfur dioxide and nitrogen oxides from simulated flue gas by ca(ClO)2 solution

24.05.2015 | Yang Zhou, Caiting Li, Chunzhen Fan, Mengfan Fu, Li Tao, Minge Yu, Mengying Zhang, Environmental Progress, 2015

To study the simultaneous removal of Sulfur Dioxide (SO2) and Nitrogen Oxides (NOx) from simulated flue gas by wet method, a bubbling device containing calcium hypochlorite (Ca(ClO)2) solution was used in the experiments. In the first place, thermodynamic analysis was conducted to determine the ...

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Co‐pyrolysis characteristics of coal and sludge blends using thermogravimetric analysis

22.05.2015 | Pu Xiao, Ling Xu, Xidong Wang, Zhibin Chang, Environmental Progress, 2015

Co‐pyrolysis characteristics of low grade coal (LGC) and sludge derived fuel (SDF) as well as their blends (L/S = 85/15, 75/25, 50/50, and 25/75) were determined at nonisothermal (10, 20, and 30°C/min) conditions in nitrogen atmosphere using thermogravimetric analyzer (TGA). The results ...

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Interfacial tension and contact angle measurements for the evaluation of CO2‐brine two‐phase flow characteristics in porous media

22.05.2015 | Yu Liu, Meiheriayi Mutailipu, Lanlan Jiang, Jiafei Zhao, Yongchen Song, Lingyu Chen, Environmental Progress, 2015

It is of great importance to investigate gas and water flow characteristics to better understand the geological CO2 sequestration process. The interfacial tension between CO2 and brine and the wettability of reservoir rocks are the most important parameters for two‐phase flow in porous media ...

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Hydrous Mineral Dehydration Around Heat-Generating Nuclear Waste in Bedded Salt Formations

22.05.2015 | Amy B. Jordan; Hakim Boukhalfa; Florie A. Caporuscio; Bruce A. Robinson; Philip H. Stauffer, Environmental Science & Technology, 2015

Heat-generating nuclear waste disposal in bedded salt during the first two years after waste emplacement is explored using numerical simulations tied to experiments of hydrous mineral dehydration. Heating impure salt samples to temperatures of 265 °C can release over 20% by mass of hydrous ...

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Highly Active Mesoporous Ferrihydrite Supported Pt Catalyst for Formaldehyde Removal at Room Temperature

21.05.2015 | Zhaoxiong Yan; Zhihua Xu; Jiaguo Yu; Mietek Jaroniec, Environmental Science & Technology, 2015

Ferrihydrite (Fh) supported Pt (Pt/Fh) catalyst was first prepared by combining microemulsion and NaBH4 reduction methods and investigated for room-temperature removal of formaldehyde (HCHO). It was found that the order of addition of Pt precursor and ferrihydrite in the preparation process has ...

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Effects of Sulfate during CO2 Attack on Portland Cement and Their Impacts on Mechanical Properties under Geologic CO2 Sequestration Conditions

21.05.2015 | Qingyun Li; Yun Mook Lim; Young-Shin Jun, Environmental Science & Technology, 2015

To investigate the effects of sulfate on CO2 attack on wellbore cement (i.e., chemical and mechanical alterations) during geologic CO2 sequestration (GCS), we reacted cement samples in brine with 0.05 M sulfate and 0.4 M NaCl at 95 °C under 100 bar of either N2 or supercritical CO2. The results ...

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Optimization of growth conditions toward two‐stage cultivation for lipid production of chlorella vulgaris

19.05.2015 | Junying Liu, Yunmeng Song, Yuhuan Liu, Roger Ruan, Environmental Progress, 2015

Increasing concerns about limited fossil fuel and elevated level of atmospheric carbon dioxide are driving force to develop renewable biofuels, and microalgae are considered a particularly promising feedstock for industrialized biofuel due to their inherent advantages. It is imperative to ...

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Activated carbon monoliths by pressureless technique for environmental applications

19.05.2015 | Anjali Bajwa, Francisca Moraga, Malini Balakrishnan, Gunnar Svensson, Vidya S. Batra, Environmental Progress, 2015

Carbon monoliths have been prepared through simple procedure by carbonization in inert atmosphere at 550°C from commercial activated carbon and from unburned carbon in waste bagasse fly ash, using two different kinds of phenolic resin binders. The bagasse fly ash was collected from sugar mills ...

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Concomitant mineralization and detoxification of acid red 88 by an indigenous acclimated mixed culture

19.05.2015 | Madhava Anil Kumar, Vaidyanathan Vinoth Kumar, Ramalingam Ponnusamy, Frederick Paul Daniel, Muthulingam Seenuvasan, ..., Environmental Progress, 2015

An indigenous mixed bacterial culture was screened and acclimated to decolorize a sulfonated azo dye; Acid Red 88 (AR88) under changing growth conditions. The process parameters influencing the average decolorization rate, ADRAR88 (μgmin−1) was optimized using Taguchi's orthogonal array ...

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The Relationship between MX [3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone], Routinely Monitored Trihalomethanes, and Other Characteristics in Drinking Water in a Long-Term Survey

18.05.2015 | Rachel B. Smith; James E. Bennett; Panu Rantakokko; David Martinez; Mark J. Nieuwenhuijsen; Mireille B. Toledano, Environmental Science & Technology, 2015

MX (3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone) is a drinking water disinfection byproduct (DBP). It is a potent mutagen and is of concern to public health. Data on MX levels in drinking water, especially in the UK, are limited. Our aim was to investigate factors associated with ...

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