共查询到20条相似文献,搜索用时 734 毫秒
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本文介绍了国内外已应用的锅炉脱硫除尘一体化装置,并结合国情,提出了应重点发展的锅炉烟气脱硫除尘一体化装置. 相似文献
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复合型除尘器除尘脱硫一体化工艺实验研究 总被引:2,自引:0,他引:2
试验研究了专利产品“高压静电滤槽复合型卧式除尘器”的除尘脱硫一体化工艺。试验表明,在布袋前方的末级电场中实行半干法脱硫工艺具有可行性,可达到除尘脱硫一体化目的。试验同时研究了钙硫比、脱硫灰循环率、饱和温距、喷水量和SO2浓度等对脱硫率的影响。该工艺适用于以低硫煤为燃料的锅炉进行除尘脱硫。 相似文献
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纯碱厂在生产纯碱过程中要排放出大量碱性废液 ,如果利用其作为净化锅炉烟气的脱硫剂 ,不仅减低了脱硫剂费用 ,而且消除了SO2 污染。本文在简单分析旋流板塔式除尘脱硫装置的结构和工作原理的基础上 ,探讨了利用碱性废液进行烟气除尘脱硫的主要影响因素 ,并找出了最佳操作条件。试验结果表明 :利用纯碱厂排放的碱性废液———一次盐泥进行锅炉烟气脱硫可以取得较高的净化效率 ,同时解决了因为碱性废液排放而给周围水域带来的污染。旋流板塔式除尘脱硫装置结构简单 ,脱硫效率高 ,并且运行安全稳定 ,是一项值得推广的技术 相似文献
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纯碱厂在生产纯碱过程中要排放出大量碱性废液,如果利用其作为净化锅炉烟气的脱硫剂,不仅减低了脱硫剂费用,而且消除了SO2污染。本文在简单分析旋流板塔式除尘脱硫装置的结构和工作原理的基础上,探讨了利用碱性废液进行烟气除尘脱硫的太要影响因素,并找出了最佳操作条件。试验结果表明:利用纯碱厂排放的碱性废液-一次盐泥进行锅炉烟气脱硫可以取得较高的净化效率,同时解决了因为碱性废液排放而给周围水域带来的污染。旋流板塔式除尘脱硫装置结构简单,脱硫效率高,并且运行安全稳定,是一项值得推广的技术。 相似文献
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煤渣床层烟气脱硫除尘试验 总被引:4,自引:0,他引:4
利用燃煤锅炉本身产生的煤渣作为基本工作介质,添加石灰和水,构成湿润床层,进行烟气脱硫和除尘。通过实验室试验,确定了配料比例,基本操作条件和相应的脱硫除尘效果及床层阻力。通过现场热态试验,验证实际应用的操作参数及脱硫,除尘效果,并探讨实用装置的构造和 的可行性。 相似文献
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一体化生物膜技术处理滨海农村污水 总被引:3,自引:0,他引:3
对厌氧-3级好氧/缺氧生物膜工艺进行技术改进,并对改进后的"一体化生物膜技术"处理低碳氮比农村生活污水进行了实际应用。新工艺增设了回流泵(回流比2∶1),且厌氧段悬浮填料装填率由原来的15%提高到30%,3级好氧/缺氧段YDT型弹性立体填料装填率依次由原来的50%、40%、25%提高到70%、60%和40%。装置连续稳定运行12个月,平均进水量为18 m3/d,HRT为3.7 d,监测结果表明:对COD、BOD、NH3-N、TN、TP和SS平均去除率分别为75.6%、85.9%、86.7%、63.9%、69.3%和85.5%;出水COD、BOD、NH3-N、TN、TP和SS的平均浓度分别在34.9、8.9、3.4、9.9、0.9和6.9 mg/L以下。改进后出水BOD和TN的去除能力有较大提高,除TP外其他各项指标均达到了设计要求。 相似文献
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农业废弃物的资源化利用 总被引:1,自引:0,他引:1
我国的农业资源浪费和破坏现象十分严重,解决这一问题的根本途径是开展农业废弃物的资源化利用,它是农业可持续发展的重要方面。本文在分析了农业废弃物资源化利用的理论基础后,讨论了农业废弃物的主要资源化利用途径和支持与保障体系。 相似文献
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Abhishek Kumar Awasthi Xianlai Zeng Jinhui Li 《Environmental science and pollution research international》2016,23(21):21141-21156
Waste electrical and electronic equipment (e-waste) is the most rapidly growing waste stream in the world, and the majority of the residues are openly disposed of in developing countries. Waste printed circuit boards (WPCBs) make up the major portion of e-waste, and their informal recycling can cause environmental pollution and health risks. Furthermore, the conventional disposal and recycling techniques—mechanical treatments used to recover valuable metals, including copper—are not sustainable in the long term. Chemical leaching is rapid and efficient but causes secondary pollution. Bioleaching is a promising approach, eco-friendly and economically feasible, but it is slower process. This review considers the recycling potential of microbes and suggests an integrated bioleaching approach for Cu extraction and recovery from WPCBs. The proposed recycling system should be more effective, efficient and both technically and economically feasible. 相似文献
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Removal of chloride from recycled cooling water is needed to reduce corrosion and prolong equipment life. Laboratory experiments have demonstrated that the ultra-high lime with aluminum (UHLA) process has the ability to achieve high chloride removal efficiency from recycled cooling water. In an effort to further understand the behavior of chloride in the UHLA process, a fundamental model of the chemical processes was developed. The purpose of this paper is to describe this equilibrium model and present values for solubility products of precipitated solids that have not been investigated previously. The model was based on PHREEQC and a new program called INVRS K was integrated with PHREEQC to calculate values of unknown or poorly defined equilibrium or kinetic constants using a Gauss-Newton nonlinear regression routine. Model predictions indicated that the results could be best described by assuming the formation of a solid solution of calcium chloroaluminate (Ca4Al2Cl2OH12), tricalcium hydroxyaluminate (Ca3Al2OH12), and tetracalcium hydroxyaluminate (Ca4Al2OH14). 相似文献
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《Atmospheric environment (Oxford, England : 1994)》2001,35(1):125-134
Aerosols have several important influences on the climate system. Among the more important of these are their roles in absorbing and scattering radiation, and as condensation nuclei in cloud-forming processes. Despite their importance, knowledge of their spatial and temporal variability and, in turn, their influence on climate, is incomplete. Constraints associated with conventional approaches to measuring atmospheric turbidity – including the requirements for clear skies and costly equipment – have contributed to a paucity of turbidity data. This paper presents a methodology for estimating atmospheric turbidity from readily available surface-weather data, regardless of cloud cover. Using a high-resolution spectral radiation model, clear-sky beam irradiance is parameterized as a function of atmospheric attenuation processes, including scattering and absorption by aerosols. The model is integrated over the day to obtain an expression for estimating potential daily clear-sky beam irradiation. Turbidity can then be estimated by forcing the model with monthly averaged climate data. The methodology can be applied at any location where the requisite climate data are available and therefore holds promise for a more complete, and possibly global, climatology of aerosols. 相似文献