共查询到20条相似文献,搜索用时 109 毫秒
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研究了活性炭吸附膜浓水的穿透曲线,并针对吸附饱和的活性炭,考察了超声再生、热再生、化学再生、电化学再生4种常用再生方式的再生效率和再生次数。结果表明电化学再生具有相对较高的再生效率和相对稳定的再生效果,其最高再生效率为87.5%,采用该方法进行4次再生后效率仍有60%。 相似文献
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废胶粉的脱硫再生研究进展 总被引:1,自引:0,他引:1
结合近年来废胶粉脱硫再生的研究成果,综述了废胶粉脱硫再生的机理、技术和方法,重点介绍了物理脱硫再生、化学再生剂脱硫再生和微生物脱硫再生方法。物理脱硫再生包括微波、超声波、电子束、剪切场连续再生和远红外线再生;化学脱硫再生剂包括无机化合物、有机化合物、De-Link和RRM;微生物脱硫再生包括硫杆菌、酵母菌再生等。 相似文献
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论述了影响粗苯加氢催化剂活性的主要因素以及再生方法和操作流程。再生方法为器内再生和器外再生,器内再生又分为湿式再生和干式再生。通过操作证明器外再生总体上优于器内再生。 相似文献
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废橡胶再生技术研究进展 总被引:12,自引:0,他引:12
综述了废橡胶再生利用的技术和方法,介绍了废橡胶的物理再生、化学再生的再行剂和微生物再生方法及进展,并对化学再生助剂、植物再生剂和生物再生助剂的再生效果进行了系统评述。 相似文献
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《中国轮胎资源综合利用》2016,(9)
正通常所说再生橡胶是以废轮胎等通用橡胶制品为原料制成的再生橡胶,而以废特种橡胶制品为原料制成的再生橡胶称特种再生橡胶,特种再生橡胶包括彩色再生橡胶、乳胶再生橡胶、香味再生橡胶、精细再生橡胶、丁基再生橡胶、丁腈再生橡胶、三元乙丙再生橡胶及硅橡胶再生橡胶、氟橡胶再生橡胶、液体再生橡胶等分述如下: 相似文献
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借鉴国外用水和对水资源管理的经验,如一水多用、污水处理回用、海水淡化,利用雨水进行农业灌溉等来提高水资源管理水平,提出国内提高水资源管理水平的建议。 相似文献
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This study deals with the effect of different types of mixing water on properties of mortar and concrete such as compressive strength, setting times and workability. Water used for mortar and concrete include tap water, underground water and wash water from mixer washout operations in a ready-mixed concrete plant. This study analyzes the quality of these types of water. Then, tests were conducted on mortar and concrete. All the underground water and wash water tested meet the ASTM C94 requirements on mixing water for ready-mixed concrete. Concrete mixed with bottom wash water gave a shorter setting time and a lower flowability since bottom wash water contains some residual cement. Neither top and middle wash waters nor underground water significantly affected slump of fresh mortar. The compressive strength of concrete mixed with wash water or underground water is as good as that with tap water. Therefore, it is suggested that underground water should be considered as mixing water for concrete and wash water be recycled where tap water resources are scarce. However, it is advised that other properties such as durability or shrinkage be studied before use. 相似文献
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Songsong LiuFlora Konstantopoulou Petros GikasLazaros G. Papageorgiou 《Computers & Chemical Engineering》2011,35(5):858-875
In areas lacking substantial freshwater resources, the utilisation of alternative water sources, such as desalinated seawater and reclaimed water, is a sustainable alternative option. This paper presents an optimisation approach for the integrated management of water resources, including desalinated seawater, wastewater and reclaimed water, for insular water deficient areas. The proposed mixed integer linear programming (MILP) model takes into account the subdivided regions on the island, the subsequent localised needs for water use (including water quality) and wastewater production, as well as geographical aspects. In addition, the integration of potable and non-potable water systems is considered. The optimal water management decisions, including the location of desalination, wastewater treatment, and reclamation plants, as well as the conveyance infrastructure for desalinated water, wastewater and reclaimed water, are obtained by minimising the annualised total capital and operating costs. Finally, the proposed approach is applied to two Greek islands: Syros and Paros-Antiparos, for case study and scenario analysis. 相似文献
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高吸水性材料的复合化及进展 总被引:20,自引:0,他引:20
介绍天然淀粉类、纤维素类、合成树脂类高吸水性树脂的特点 ,着重介绍高吸水材料的复合化、功能化方向及研究进展 :高吸水纤维、吸水性无纺布、吸水性塑料与遇水膨胀橡胶是高吸水材料复合化的研究新方向 ;功能性吸水材料如 :抗菌材料、芳香性材料、可生物降解材料也具有广泛的应用前景。 相似文献
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针对直接使用地表水与利用循环冷却水系统的排水作为火力发电厂锅炉补给水进行技术经济比较,为电厂合理选择适合的锅炉补给水处理水源作参考。研究结果表明,项目采用地表水做水源的方案电耗低、基建费用低、制水成本低、自动化程度高、运行及管理方便、检修维护工作量小,但水耗指标略差。从经济、技术、环保等方面进行综合考虑,推荐采用地表水作为锅炉补给水水源。 相似文献
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针对循环冷却水作中小型工厂消防水源的技术可行性及在工程设计中需要采取的技术措施等方面的问题进行了探讨和分析 ,并给出循环冷却水作为消防水源不同情况下循环水泵房与消防泵房的平面布置方式 相似文献
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用工业废碱水处理反渗透法高含盐排放浓水 总被引:2,自引:0,他引:2
反渗透处理装置排放的浓水含盐量很高,如果不经处理直接排放势必对周围环境造成污染和水的浪费,氧化铝生产工艺废水中含有大量的碳酸钠、苛性碱等碱类物质,pH值达到13左右,回水量约2000m^3/h,用这些废水和反渗透浓水混合进行软化处理,降低浓水中的钙镁离子含量,并对难去除的硫酸盐进行稀释降低浓度,回用到蒸发循环水系统作为补充用水、氧化铝生产部分工艺用水、设备冷却用水,达到浓水回收再利用的目的。该方案实施后效果十分显著,回收反渗透浓水约60m^3/h,减少污水系统补充新水,降低生产用水费用约每年176万元。 相似文献