污水处理中陶瓷膜清洗技术的研究进展

首先对陶瓷膜进行了简单介绍,阐述了陶瓷膜的应用,肯定了对陶瓷膜清洗技术进行研究的正确性和前沿性。然后介绍了陶瓷膜清洗技术的原理。接下来研究污水处理行业中的陶瓷膜清洗技术,将污水分为工业污水和生活污水的两大部分,着重介绍和阐述了被矿井污水、含油污水、自然有机化合物污水及生活污水污染的陶瓷膜进行不同清洗技术的应用和研究进展。最终对陶瓷膜清洗技术未来的发展进行了展望。     

典型陶瓷膜在水处理中应用与研究进展

针对陶瓷膜技术在水处理中的应用,介绍了陶瓷膜发展历程和研究现状。综述了典型陶瓷膜在饮用水、海水淡化、生活污水和工业废水等方面的应用,以及近年来陶瓷膜分离与臭氧、光催化、微生物耦合技术及其应用于水处理领域的国内外研究进展。对陶瓷膜在水处理领域中的发展前景进行了展望。     

高温烟尘除尘技术现状及趋势

在介绍目前多种高温烟尘除尘技术基础之上,重点介绍了陶瓷膜除尘器,并分析了其在高温除尘技术中的独特优势;说明了陶瓷膜除尘器过滤机理及粉尘层和脉冲反吹对过滤效果的影响.针对目前国内外陶瓷膜除尘器在高温除尘技术中的应用研究现状,表明了陶瓷膜除尘器的实际应用价值,并提出陶瓷膜除尘技术应该从降低制备成本、拓宽应用领域、发展耦合技...     

多孔陶瓷膜制备技术研究进展

多孔陶瓷膜具有化学稳定性好、机械强度大、耐酸碱、耐高温等优点,在石油和化学工业等苛刻环境中有着广泛的应用,多孔陶瓷膜的制备技术是推动多孔陶瓷膜产业发展的核心部分。多孔陶瓷膜制备技术的核心和关键是以提高陶瓷膜整体性能为导向,通过对陶瓷膜微结构的调控,实现陶瓷膜制备技术的突破。针对近十年来陶瓷膜领域的研究,概述了当前陶瓷膜领域在制备具有高渗透性、高渗透选择性的陶瓷膜以及陶瓷膜低成本化方面的研究进展,并对未来陶瓷膜领域的发展趋势及瓶颈性问题进行了讨论。     

陶瓷膜技术的应用及现状

介绍了国际上陶瓷膜技术的开发和产业化进展情况，总结了陶瓷膜技术的重要应用，最后阐述了我国陶瓷膜技术的研发应用、生产情况和标准进展。     

凯膜及陶瓷膜技术应用比较

介绍了凯膜技术、陶瓷膜技术在一次盐水精制中的应用以及陶瓷膜的发展前景。     

凯膜及陶瓷膜技术应用的比较

介绍了凯膜技术、陶瓷膜技术在一次盐水精制中的应用情况及陶瓷膜的发展前景。     

无机陶瓷膜在水处理中的研究进展

膜过滤技术被认为是21世纪新型的水处理技术,其中无机陶瓷膜过滤技术受到了广泛的关注,针对传统有机膜的不足,无机陶瓷膜具有耐酸碱、分离效率高、耐高温、化学稳定性好、使用寿命长等优点.针对陶瓷膜的研究现状和进展,论述了陶瓷膜在水处理领域中的应用,同时对陶瓷膜在水处理方面的发展进行了总结.     

碳化硅陶瓷膜的制备及其应用进展

碳化硅陶瓷膜具有耐高温、抗热震、耐腐蚀、高通量、使用寿命长等优势，是环境污染治理领域中的关键材料。如何制备面向应用过程的高性能碳化硅陶瓷膜已经成为目前的研究热点。本综述介绍了碳化硅陶瓷膜的成膜方法，包括浸渍提拉法、喷涂法、化学气相沉积法及相转化法。此外，阐明了各方法的成型机理、影响因素及优缺点等，概述了碳化硅膜烧结技术的机理、特点及研究现状，包括重结晶技术、前体转化技术、原位反应烧结技术及新型烧结技术，其中重点描述了共烧技术的实际应用价值及挑战，利于明晰碳化硅陶瓷膜性能与制备工艺的关系。并阐明了碳化硅陶瓷膜在高温烟气净化、油水分离、气体分离领域中的应用现状及前景，最后对碳化硅陶瓷膜工业化应用潜力作出展望。     

陶瓷膜在饮用水处理中的应用与膜污染控制

陶瓷膜技术在水处理领域快速普及,与有机膜相比陶瓷膜在使用寿命、抗污性、稳定性等方面具有显著优势,陶瓷膜市场规模和复合年增长率预计在2021-2025年将达到30.9亿美元和11.31%。文章重点介绍了陶瓷膜在饮用水处理中的应用和发展,阐明了膜污染机理以及控制策略。此外,对陶瓷膜未来的市场前景和研究方向进行了分析。     

Preparation and properties of low friction silicon carbide ceramic seals by pore creation

Abstract

Low friction silicon carbide (SiC) ceramic seals were prepared by combining liquid phase sintering (LPS) with pore creation, the effects of polyethylene oxide (PEO) as pore former on the sintering and mechanical properties, microstructure, and friction properties of LPS–SiC ceramic seals were investigated. The PEO firstly forms cross-linking aggregates with loose structure in SiC granules, which uniformly creates macropores on the surface and inside of LPS–SiC ceramic seals during the sintering. The addition of PEO decreases the sintering and mechanical properties of LPS–SiC ceramic seals obviously, while significantly reduces the dry friction coefficient of LPS–SiC ceramic seals. When the PEO content increases from 0 to 15 wt-%, the dry friction coefficient drops from 0·403 to 0·126. The pore creation of PEO improves the friction performances of SiC ceramic seals in sliding wear applications.     

Fabrication of PEBA/ceramic nanocomposite membranes in gas sweetening

Poly (ether-block-amide) (PEBA)/ceramic nanocomposite hybrid membranes were fabricated by dip-coating of ceramic nanocomposite porous support in PEBA solution and their performance in gas separation (CO₂ and N₂) was examined. Tubular supports were used as substrates for hybrid membranes and Poly (ether-block-amide) was applied as a selective layer. PEBA based on N6 and PEO was synthesized via a two step process. The formation of new ester bond between N6 and PEO in the synthesized copolymer was proved by FT-IR spectroscopy. AFM micrographs indicated that the morphology is the dispersion of high stiffness nanostructured PA domains in the amorphous region of PEO matrix. Experimental results showed that at high concentration of coating solution, a uniform PEBA layer was formed on the porous ceramic support with higher performance for the separation of CO₂/N₂ binary gas mixture.     

Growth and Corrosion Characteristics of Plasma Electrolytic Oxidation Ceramic Films Formed on AZ31 Magnesium Alloy

The growth characteristics of oxide ceramic films formed on AZ31 magnesium alloy with plasma electrolytic oxidation (PEO) technique in alkaline silicate solution were investigated. The composition, structure and morphology of the coatings were detected by energy dispersive X-ray spectroscope and scanning electron microscope. The amount of dissolved magnesium in the electrolytes during PEO process was measured by atomic absorption spectrometry. The results indicated that the growth process of PEO films had three stages when applied with constant voltage mode. In the first stage, the growth rate of PEO films was low, and concentrations of elements O, Mg and Si varied slightly. After sparking occurred (the second stage), the PEO films showed higher growth rate due to the high transfer rate of ions and electrons, and the existence of plasma reactions. When the growth rate tended to maintain stable with time, the third stage happened. PEO films exhibited different uniform and pitting-corrosion characteristics in different reaction stages. The films formed at 300 V for 30 min performed best corrosion resistance and the phase of ceramic films was mainly composed of MgSiO3 and forsterite Mg2SiO4.     

陶瓷膜材料在水处理领域的应用

综述了陶瓷膜分离技术的特点、原理及在水处理各个领域的应用。并对陶瓷膜在水处理领域应用出现的问题及解决办法作了阐述,最后总结了陶瓷膜在水处理领域的研究方向和应用前景。     

无机陶瓷膜分离技术处理工业废水

无机陶瓷膜是一种新型的膜分离材料,目前已在工业废水处理中得到了广泛的应用。主要介绍了无机陶瓷膜分离技术在印染废水、造纸废水、冶金废水和采油废水上的研究进展,并对今后无机陶瓷膜分离技术在工业废水处理中的应用提出了几点建议。     

煤气化合成气除尘用陶瓷膜研究进展

当前,世界各国均在研究增压流化床联合循环发电技术和整体煤气化联合循环发电技术中的高温除尘技术。介绍了陶瓷膜除尘分离的原理,以及其在国内外的应用和研究现状。认为陶瓷膜优点突出,在煤气化合成气除尘及高温气体除尘领域具有广阔的应用前景。     

Structure,interaction and thermal study in electrolyte of polyethylene oxide/silica/ammonium thiocynate nanocomposites

Composite polymer electrolyte consisting of polymer (polyethylene oxide, PEO) and nanosized ceramic filler with different concentrations of salt have been synthesized and characterized. X‐ray diffraction analysis shows that polymer salt complex has been intercalated into the naometric silicate layers. IR spectra reveal that the polymer structure in the ceramic interlayer is similar to that of polymer salt complexes and there is a strong interaction between PEO:SiO₂ and polymer‐salt complexes. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers     

陶瓷基微反应器制备的研究进展

微反应器中亚毫米级的流体通道具有高效的传质传热效应,使其能够强化反应过程。随着微细加工技术的发展,制备出了耐高温耐腐蚀的陶瓷基微反应器,适用于更严苛的反应条件,然而陶瓷基微反应器的制备存在微结构成型工艺复杂、密封难度较大等问题。本文主要介绍不同陶瓷材料微反应器的制备工艺,重点论述陶瓷基微反应器制备过程中常规微加工技术的优化和新型微加工技术的引入,对比这些技术对微结构成型的改善效果。列举常用的陶瓷微通道密封连接方法,概述其特点和适用范围。并提出在陶瓷基微反应器制备的后续研究过程中,应注重陶瓷基微反应器制备的成功率和新技术的开发,完善陶瓷基微反应器的性能,将陶瓷基微反应器引入到更广泛的应用体系中。     

陶瓷膜在油田采出水处理中的应用

油田采出水的处理是一个关系油田可持续发展的重要问题。陶瓷膜以其特有的优点在采出水处理方面显示出良好的适用性和应用前景。本文从油田采出水和陶瓷膜的特点出发,介绍了陶瓷膜在油田采出水处理方面的应用,提出了面临的主要问题及建议。     

我国无机陶瓷滤膜研究现状与应用前景

介绍了我国无机陶瓷滤膜的研究情况，并对陶瓷滤膜的分类和制备技术以及膜污染和防止作了简要描述；同时，对陶瓷膜分离技术在生产、生活中的应用状况，我国陶瓷滤膜的应用前景作了简要分析。