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海泡石资源的开发及利用 总被引:2,自引:0,他引:2
文中叙述了八十年代我国开发出的新矿种海泡石矿的资源分布概况、物化性能研究进展及其开发利用情况。表明海泡石因其具有吸附性、流变性、催化性、大的比表面等特点而在许多工业领域有着广泛的用途。重要的是加强物化性能的研究,开拓市场,进行产品的深加工。 相似文献
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以沈阳的装配式住宅建设项目为案例工程,对预制装配生产建造方式的节能效益和碳排放进行研究。将装配式住宅物化阶段碳排放作为研究对象进行量化计算,分析了物化阶段碳排放路径及碳排放源,确定了碳排放的计算边界,通过基于过程评价法(Process-based LCA)确定了装配式住宅物化阶段的碳排放量化计算流程与计算方法,建立了装配式住宅物化阶段碳排放计算模型。依据物化阶段的过程划分进行了数据收集,结合 IPCC 等机构发布的碳排放因子数据,计算得出案例装配式住宅物化阶段的碳排放量,并与传统住宅物化阶段碳排放量的计算结果进行对比分析。计算模型可为我国装配式住宅的环境性能评价提供相关的数据和技术支持 相似文献
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本文回答王延生同志的质疑,讨论了含CaO膨胀剂的物化性能和应用范围。根据膨胀相物化性能,提出不同类型膨胀剂适用范围的依据。 相似文献
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污染土壤的物理化学修复现状与展望 总被引:1,自引:0,他引:1
介绍了我国土壤污染的突出特点及其危害,在分析污染土壤原位修复和异位修复两种方式不同特点的基础上,根据各种修复技术的不同作用原理,介绍了目前国内外主要物理、化学修复的技术原理、适用性、局限性及实施时间等,展望了今后物理化学修复技术的发展。 相似文献
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气浮——纤维过滤法和微絮凝纤维过滤——膜滤法处理洗浴废水的研究 总被引:12,自引:0,他引:12
采用两套处理工艺对洗浴废水处理进行试验研究。流程一采用“气浮+纤维过滤”,流程二采用“微絮凝纤维过滤+膜滤”。试验表明,采用这两种工艺均能使出水达到国家生活杂用水水质标准,且具有占地面积小、操作简单、出水水质稳定等优点,是行之有效的处理方法,详细地介绍了这两套流程的试验情况。 相似文献
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Comparison of humification processes occurring during sewage purification in treatment plants with different technological processes 总被引:2,自引:0,他引:2
J. Polak 《Water research》2009,43(17):4167-4176
The course of the humification process of sewage sludge collected from three biologic-mechanical treatment plants with different treatment technologies was studied. The maturity of sewage sludge and its usefulness for agricultural purposes was also discussed. The physical-chemical properties of humic acids extracted from sewage sludge received from comparable stages of sludge purification were described. Changes of the sludge properties during sewage purification and the progress of the humification process were investigated with EPR, IR and UV/VIS spectroscopic methods. The content of the elements and the carboxylic groups in humic acids extracted from each stage of the sewage treatment were also determined. It was found that the humification processes take place in all three treatment plants but with different intensities resulting from the differences in the individual cleaning processes in these plants. The most intensive changes of physical-chemical parameters in the extracted humic acids were observed in the anaerobic digester where mesophilic fermentation occurs. The sludge oxygenation processes also significantly affect the course of the humification process during sewage treatment. 相似文献
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谈普通民用建筑混凝土结构的耐久性 总被引:1,自引:1,他引:0
结合工程质量事故的发生,从钢筋锈蚀、物理化学反应、冻害、设计、施工等方面分析了混凝土结构劣化的原因,并介绍了提高结构耐久性的措施,指出普通民用建筑结构耐久性应引起工程界的足够重视。 相似文献
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文章介绍了垃圾渗滤液的产生和特点,分析了国内外垃圾填埋场渗滤液的处理工艺,包括生化法、物化法和土地处理法,着重提出回灌法,并建议了渗滤液的治理方向。 相似文献
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研究了适用于釉面水泥制品的PbO-B2O3-SiO2系统低温釉的组成,并对其物理化学性能进行了测试和分析。讨论了釉料悬浮剂、烧成温度及时间对釉层烧成质量的影响。 相似文献
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Sulphonated anthraquinones are known to be recalcitrant to biodegradation and are not eliminated by traditional wastewater treatment plants, leading to their accumulation in fresh water. Due to the high cost and limited efficiency of existing physical-chemical treatments, alternative cheaper processes are required to remove these compounds from industrial effluents. Four plant species were tested under hydroponic conditions for their ability to treat model effluents contaminated with mono- and disulphonated anthraquinones. Among them, Rheum rabarbarum (rhubarb) showed the most promising results and was chosen for further investigation. The apparent transpiration stream concentration factor obtained with this plant species reached up to 2.5, indicating a strong phytotreatment potential that should be further explored then exploited. 相似文献