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关键词： 砷化镓   臭氧氧化   生物降解   膜分离   除砷   除氟   脱稳  

摘要： 为了解决砷化镓生产废水含有磷酸盐、氟化物、砷化物以及难沉降亚微米级悬浮物的处理难点,首先采用催化臭氧氧化—好氧生化深度预处理废水,再采用RO膜分离工艺进行处理。结果表明:催化臭氧氧化法使废水中亚微米级悬浮物脱稳,有利于悬浮物的混凝沉降,并优化了膜分离阶段的分离环境,可延长膜使用寿命,降低运行成本;经过膜分离后,出水砷质量浓度为0.01 mg/L,氟质量浓度为1.0 mg/L,COD、TP、TN和ρ(NH3-N)为10,0.01,0.50,0.50 mg/L,均达到《地表水环境质量标准》(GB3838—2002)Ⅲ类水质标准。

关键词： 资源分离与分选   资源循环科学与工程   专业建设  

摘要： 阐述了安徽理工大学资源循环科学与工程专业开设"资源分离与分选技术实验"课程的必要性.在新工科大背景下,立足课程建设意义,深入探讨了该课程的教学目标、教学讲义、教学内容、教学方式与教学考核,并在实际的教学开展过程中进行了教学反思,发现了诸多问题,并提出了切实可行的课程改革方案.希冀在资源循环领域,为国家培养更多更优秀的综合型人才,创造更大的再生价值,助力社会环境协调发展.

关键词： 化工分离工程   成人高等教育   教学改革  

摘要： 针对《化工分离工程》应用性和实践性较强的特点,结合成人高等教育面临的严峻形势,作者从教学内容、教学模式、思政教育和考核原则等方面对教学改革提出了几点思考,从而增强学生的学习主动性和使命感,以期达到良好的教学效果。

关键词： Claim management   Delay analysis   Problems multifaceted   Delays continuous   Delays discrete   Share delays   Period-to-period technique  

摘要： Almost all projects around the world suffer from delays. The most valid delay calculation techniques belong to the SCL Protocol, but they also have considerable drawbacks. The techniques of this protocol only calculate the amount of project delays;but this is not enough. Today, projects are based on competitive conditions around them;they have become very intricate and sensitive. In most projects, the obstacles and problems are multifaceted, such as: Low speed work, working Stop, Requires several extension periods and numerous revisions and changes to the basic schedule. These conditions make analysis very difficult and sometimes impossible and it bothers the analyst;the SCL protocol has no solution for that. Researchers in this study according to their executive records in projects, the most complex life cycle of the project was considered from the perspective of delays occur and claim management. They introduced an integrated technique that analyzes delays (continuous and discrete), and sharing delays among stakeholders the form of into (Period-to-Period) Performs, which is called the (Pr-to-Pr) technique.

关键词： PHB   non-solvent-induced phase separation   scaffold   cell viability   micropores   nanofibers  

摘要： Highly porous poly(3-hydroxybutyrate) (PHB) scaffolds were fabricated using non-solvent-induced phase separation with chloroform as the solvent and tetrahydrofuran as the non-solvent. The microporosity, nanofiber morphology, and mechanical strength of the scaffolds were adjusted by varying the fabrication parameters, such as the polymer concentration and solvent composition. The influence of these parameters on the structure and morphology of PHB organogels and scaffolds was elucidated using small-angle neutron scattering and scanning electron microscopy. The organogels and scaffolds in this study have a complex hierarchical structure, extending over a wide range of length scales. In vitro viability assays were performed using the human keratinocyte cell line (HaCaT), and all PHB scaffolds demonstrated the excellent cell viability. Microporosity had the greatest impact on HaCaT cell proliferation on PHB scaffolds, which was determined after a 3-day incubation period with scaffolds of different morphologies and mechanical properties. The superior cell viability and the controlled scaffold properties and morphologies suggested PHB scaffolds fabricated by non-solvent-induced phase separation using chloroform and tetrahydrofuran as promising biomaterials for the applications of tissue engineering, particularly of epidermal engineering.

关键词： metal-organic frameworks   defect engineering   modulation synthesis   UiO-66   wettability   oil/water separation  

摘要： Zirconium-based metal-organic frameworks (MOFs) have attracted interest due to their chemical and thermal stabilities and structural tunability. In this work, we demonstrate the tuning of the wettability of a UiO-66 structure via defect-engineering for efficient oil/water separation. UiO-66 crystals with controlled levels of missing-linker defects were synthesized using a modulation approach. As a result, the hydrophilicity of the defect-engineered UiO-66 (d-UiO-66) can be varied. In addition, a thin layer of hydrophilic d-UiO-66 was successfully fabricated on a series of stainless steel meshes (d-UiO-66@mesh), which exhibited excellent superhydrophilic and underwater superoleophobic properties and displayed interesting separation performance for various oil/water mixtures.

关键词： 水处理环境工程   膜分离技术   应用  

摘要： 随着经济的快速发展,水质越来越复杂和难以处理。传统的治疗技术难以取得较好的治疗效果。为了进一步提高处理效果,在处理过程中采用了膜分离技术。膜分离技术以其重复利用、处理后水质好、自动控制操作方便等优点,在环境工程水处理领域得到了广泛的应用。膜分离技术主要包括微滤技术、超滤技术、纳滤技术和反渗透技术。它们利用膜选择性透性去除水中有毒有害物质,广泛应用于饮用水处理和海水淡化。

关键词： 制药工程   制药技术   分离技术  

摘要： 药品研发作为民生体系发展的根本,其直接关乎着各类疾病的治愈效果。从近年来药品行业在经济市场中的地位来看,亚健康、环境恶化、病毒等所带来的疾病极大拓宽医药行业的发展规模。为增强药品本身的功能属性,应采用合理的制药工艺,令药物产品本身具备较大的效用价值,进而提升药品的质量,满足用户的用药需求。

关键词： 化工分离工程   教学设计   教学方法   改革  

摘要： 化工分离工程课程是化学工程与工艺专业重要的专业课程。针对课程目标、任务以及教学中存在的一些问题,对课程教学设计、教学方法等方面进行了探讨,提出了改进教学方式、加强企业实习交流、优化课程设计等教学改革措施。教学过程中以学生为主体,激发学生的自主学习意识,提高学生分析问题和解决问题的能力,从而提高了教学质量。