توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Assessment Quality of Rescue and Relief Operation with Step by Step Method
اطلاعات انتشار: دومین همایش مقابله با سوانح طبیعی، سال
تعداد صفحات: ۵
Rescue and relief begin after occurrence disaster and continues until the border of reconstruction phase. Assessing the quality of the rescue and relief phase can be done by considering qualitative and quantitative variables. Qualitative variable use to evaluate performance of this phase of managing of disaster .These kinds of variables measured condition without interference of quantities data. Result of using qualitative assessment can present in indexes such as satisfaction of damaged people and acceptability of operation in people which are in damaged zone or in other areas. In this research by definition qualitative Indexes which can be used after an earthquake disaster, assessing the performance of the rescue and relief phases by using these Indexes was done. For receiving the objective of this study a new method was suggested. Step by step method is one method which can be used in assessing the quality performance of disaster management. Result of this research acknowledges that qualitative assessment has permissible consequence and can be done in measuring the rate of efficiency of rescue and relief phase of disaster management.<\div>

۲Heat recovery from rotary cement kiln
اطلاعات انتشار: اولین کنفرانس بین المللی صنعت سیمان، انرژی و محیط زیست، سال
تعداد صفحات: ۶
Heat loss from rotating kilns may represent a significant percentage of the total energy input especially in highly energy intensive industrial sectors such as cement production. Cement production has been one of the most energy intensive industries in the world. In order to produce clinker, rotary kilns are widely used in cement plants. As an alternative to traditional energy recovery methods, the possibility of recovering radiant and convectional heat lost through the kiln surface has been proposed in the literature. This may be accomplished by surrounding the kiln with a secondary external shell acting as a heat exchanger for a transfer fluid. The recovered heat energy can then be used for several purposes, such as electricity generation and preparation of hot water.<\div>

۳Using Scrap Tyres (TDF) as an Alternative Fuel in Clinker Burning Process in Cement Industry
اطلاعات انتشار: اولین کنفرانس بین المللی صنعت سیمان، انرژی و محیط زیست، سال
تعداد صفحات: ۹
The process of clinker burning in a rotary kiln creates favorable conditions for the use of scrap tyres as an alternative fuel. High calorific value of tyres, high temperature and alkaline environment, oxidizing atmosphere, large heat–exchange surface, good mixture of gases and products, and sufficient time made an ideal condition for using tyres’ energy content and disposing them in an environmentally and economically sound way. Furthermore, Technical aspects of using TDF has been reviewd. It’s concluded that use of scrap tires is a viable alternative fuel program in cement plants.<\div>

۴Investigation of the Excess Sludge Reduction in SBR by Oxidizing Some Sludge by Ozone
اطلاعات انتشار: Iranian Journal of Chemistry and Chemical Engineering (IJCCE)، بيست و هشتم،شماره۴(پياپي ۵۲)، ۲۰۰۹، سال
تعداد صفحات: ۱۰
The excessive biological sludge production is one of the disadvantages of aerobic process such as SBR. So the problem of excess sludge production along with its treatment ، and disposal in aerobic processes in municipal and industrial waste water can be seen in many parts of the world even in our country . to solve the problem of excess sludge production ، reducing in by oxidizing some of the sludge by Ozone is a suitable idea ، thus reducing the biomass coefficient as well as the sewage sludge disposal. In this study، Two SBR reactors with of 20 liter being controlled by on–line system are used. After providing the steady state in the reactors، along the 8 month research sampling and testing parameters such as COD، MLSS، MLVSS، DO، SOUR، SVI، residual ozone and Yield coefficient were done. The results showed that during the solid retention time of 10 days the kinetic coefficient of Y and Kd was 0.58 (mg Biomass \ mg COD) and 0.058 (1\day) respectively. At the next stage of research، different concentrations of ozone in one liter of the returned sludge to reactor were used to reduced the excess biological sludge production. The results showed that the 20 mg ozone per gram of MLSS in one liter of the returned sludge to reactor is able to reduce Yield coefficient from 0.58 to 0. 28 (mg Biomass\mg COD)، In other words، the biological excess sludge by 52 % .but the soluble COD increased slightly in the effluent and the removal percentage decreased from 92 in blank reactor to 64 in test reactor. While the amount of SVI and SOUR in this consumed ozone concentration reduced 9 mgO2\h.gVSS and 20 ml\g respectively. No sludge was seen in the 25 mg ozone concentration per gram of MLSS in one liter of the returned sludge to reactor.
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