共查询到20条相似文献,搜索用时 109 毫秒
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文章主要介绍了井矿盐企业采用不同的卤水净化工艺产生的盐泥及其特征,不同的过滤设备进行盐泥脱水的效果对比,以及加压过滤机在盐泥脱水上的应用前景。 相似文献
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浅谈制盐企业盐泥脱硫 总被引:1,自引:0,他引:1
根据制盐企业在生产过程中所排放的废弃物盐泥的特点,摸索出了一条利用废弃盐泥转化为硫吸收剂用于电厂锅炉脱硫方法,为盐泥废物的利用找到出路.解决了制盐企业盐泥处置困难和电厂锅炉尾气对环境造成污染的问题。 相似文献
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通过对多孔排泥和SD池底阀排泥工艺方式的对比,阐明了SD池底阀排泥工艺的基本原理和应用前景,并重点叙述了SD池底阀在长山盐矿新建卤水沉淀池中的工艺设计原则. 相似文献
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制盐净化卤水的盐泥过滤技术探讨 总被引:1,自引:1,他引:0
卤水的盐泥过滤在国内制盐行业才刚刚起步,而在制碱行业则有较长时间的使用经验,本文介绍国内外盐水过滤的常用方法,结合国内制盐卤水净化的工艺特点,探讨在这一行业可能的使用方法及工艺,重点介绍美国戈尔公司的戈尔膜液体过滤器过滤技术、山东潍坊金鑫化工化纤设备技术开发中心开发的WJSL型纤维过滤器过滤技术和上海鸣泰过滤技术有限公司开发的种植膜过滤技术。 相似文献
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Fate of Zinc Oxide Nanoparticles during Anaerobic Digestion of Wastewater and Post-Treatment Processing of Sewage Sludge 总被引:1,自引:0,他引:1
E Lombi E Donner E Tavakkoli TW Turney R Naidu BW Miller KG Scheckel 《Environmental science & technology》2012,46(16):9089-9096
The rapid development and commercialization of nanomaterials will inevitably result in the release of nanoparticles (NPs) to the environment. As NPs often exhibit physical and chemical properties significantly different from those of their molecular or macrosize analogs, concern has been growing regarding their fate and toxicity in environmental compartments. The wastewater-sewage sludge pathway has been identified as a key release pathway leading to environmental exposure to NPs. In this study, we investigated the chemical transformation of two ZnO-NPs and one hydrophobic ZnO-NP commercial formulation (used in personal care products), during anaerobic digestion of wastewater. Changes in Zn speciation as a result of postprocessing of the sewage sludge, mimicking composting/stockpiling, were also assessed. The results indicated that "native" Zn and Zn added either as a soluble salt or as NPs was rapidly converted to sulfides in all treatments. The hydrophobicity of the commercial formulation retarded the conversion of ZnO-NP. However, at the end of the anaerobic digestion process and after postprocessing of the sewage sludge (which caused a significant change in Zn speciation), the speciation of Zn was similar across all treatments. This indicates that, at least for the material tested, the risk assessment of ZnO-NP through this exposure pathway can rely on the significant knowledge already available in regard to other "conventional" forms of Zn present in sewage sludge. 相似文献
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高效上流式厌氧污泥床(UASB)反应器能否成功运行的关键在于颗粒污泥的培养。作者对在(UASB)反应器中颗粒污泥的培养技术、营养条件和环境因素进行了较为详细的研究,并从物理学和生物学的角度对颗粒污泥的特性进行了分析和探讨,最后进行了颗粒污泥(UASB)反应器运行性能的研究。研究结果表明,实验室可在65天的时间内培养得到具有良好沉降性能和高活性的颗粒污泥,这种颗粒污泥其内部结构极为合理;装有颗粒污泥的UASB反应器是一种非常高效稳定的废水厌氧处理装置。 相似文献
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概述了国内外污泥处理技术的发展现状,简述了几种目前污泥的处理方法及其优缺点。介绍了污泥在多个领域里的资源化利用。 相似文献