共查询到20条相似文献,搜索用时 93 毫秒
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《煤炭加工与综合利用》2019,(12)
从焦化废水组成和分类、国内外具有代表性的处理技术及今后我国焦化废水治理趋势等方面进行调研分析,结合目前国内焦化废水零排放实践案例,指出焦化废水处理技术发展趋势及治理新模式。 相似文献
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焦化废水物化处理技术研究进展 总被引:1,自引:0,他引:1
工业有机废水焦化废水污染物种类多样、降解难、毒性大,对环境和人类的危害越来越严重,已成为当今世界不可忽视的环境污染问题之一。物化法是焦化废水处理的重要研究方法,适用于焦化废水的预处理和深度处理。从环境保护的角度,阐述了焦化废水的物化处理方法,并介绍了焦化废水物化处理技术的最新进展。为更好的实现焦化废水的物化处理,应加强技术机理、复合技术和反应装置、处理剂材料和改性和新技术工艺等方面的研究。 相似文献
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根据焦化废水的水质特点,选择采用A^2/O法和催化湿式氧化法处理焦化废水。通过两种不同工艺处理同源焦化废水的技术比较和经济分析,得出催化湿式氧化法是一种可行的焦化废水处理技术。 相似文献
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介绍了水在液化气中的存在形式和脱水方法的研究进展。液化气中水的存在形式为游离水和溶解水。游离水的脱除可采用凝聚法和旋流法等,吸附法可脱除液化气中的溶解水,可使液化气中的水含量降至10×10^-6以下。在实际过程中可采用组合脱水的方法,以提高液化气的脱水效率、降低脱水过程的操作成本。 相似文献
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供水增压泵站改造的优化计算 总被引:1,自引:0,他引:1
城乡一体化供水布局中,中途增压泵站对保证乡镇供水管网的水压具有重要作用。目前,多数供水增压泵站采用传统水池增压方式,上游进水管网余压难以充分利用,运行成本较高。基于水池增压改造的余压利用系统为水池和管道联合增压方式,在下游用水量低时,可使水流不经水池,直接由管道泵输水;在用水高峰期,可以通过切换到水池泵运行,以满足用户的高用水量和水压需求。借助供水管网水力模型和遗传算法,以供水能耗最低为目标函数,得到管道泵和水池泵的最佳运行方案。该方案根据不同的用水流量和市政管网压力值,合理切换管道泵和水池泵,计算及工程实践结果显示优化增压方式后能耗明显降低。 相似文献
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Alexander M. Lopez Dmytro Demydov Brigitte Rogers Haley Cleous Long Tran Chase Smith 《分离科学与技术》2018,53(5):767-776
Hydraulic fracturing has become a reliable source for oil and natural gas, yet widespread use has led to significant issues with water consumption and sustainable sourcing. Research into the reuse of produced water and flowback water have focused on mitigating water demand in this industry through membrane separation technology. In general, nanofiltration and reverse osmosis have been thought to be more economically viable for the treatment of produced and flowback water at high flowrates. However, electrodialysis and electrodeionization are generally more flexible for production of produced water and brackish water for reuse in fracturing operations when contaminant concentrations in produced water and flowback water are low. Electrodialysis and electrodeionization can also significantly reduce wastewater produced from water treatment, decreasing the amount of water that must be disposed by deep well injection. Thus, there are many cases where electrically driven processes compete well with pressure driven processes due to high water recovery and each case must be analyzed in terms of water quality variability and overall desired water treatment rate. This paper finds that at low ion concentration of inlet water, electrodialysis and electrodeionization are energy-efficient, cost-effective attractive technologies for water recovery. 相似文献
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The effect of water on the heats of absorption from solution is shown when the water is adsorbed on the solid or dissolved in the solvent, n-heptane. The effects are examined by taking rigorous steps to exclude water and by deliberately pre-adsorbing water onto the solid or dissolving water in the solvent. The results show that water must be excluded from the solvent and many types of solid, particularly those produced in the presence of water, must be pre-treated in a carefully standardised way if calorimetry is to be used as a standard method for surface area measurement. 相似文献
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本文从酸性水产生的机理人手,分析了硫铁矿开采水质预测应注意矿床赋存地质条件与开采方式等问题.此外还提出了硫铁矿废石场在大雨或暴雨时的径流水不能直接排放,而应在废石场下游设酸性水调节库集中处理的建议. 相似文献
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浮法法玻璃生产热工设备中,诸多设施需要用水冷却才能发挥应有的作用,必须稳定控制循环水的硬度、水温、水压、流量等要素,通过有针对性的技术措施的应用,实现循环水的稳定控制,满足工艺和生产需要,保证生产的安全和稳定。 相似文献
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水力旋流器用于高含水原油预分离试验研究 总被引:2,自引:0,他引:2
水力旋流器是一种新型、高效的油水分离装置。通过试验证明用水力旋流器对高含水原油进行油水分离是行之有效 ,处理后的溢流口中油的综合含水率可降至 50 %左右 ,能满足外输要求 ;从底流口排出水中含油可控制在 2 0 0 0 ppm以内 ,若适当放宽底流口出水的含油要求 ,控制溢流口的分流比 ,可大大降低溢流口中的含水率。 相似文献