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期刊论文 36

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2022 5

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关键词

资源化利用 2

CP);符号间干扰(inter symbol interference, ISI);载波间干扰(inter carrier interference 1

ICI);最大似然估计(maximum likelihood estimation 1

MLE) 1

OFDM);快速傅立叶变换(Fast Fourier transform, FFT);循环前缀(cyclic prefix 1

人工滤池 1

代码复用;代码推荐;树相似度;结构信息 1

低碳经济 1

冶金污水 1

分布式结构 1

化工废水 1

双膜法水处理工艺 1

反渗透 1

反馈回路 1

可调多波长选择路由器 1

城市水资源 1

太阳能,光伏,集中太阳能,生物质,水电解,二甲醚 1

废弃防水卷材;资源化利用;减量化;重复利用;循环再生;全再生防水卷材 1

技术创新 1

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Scenedesmus Obliquus Cultivation Substrate with Microfiltration: Potential and Challenges for Water Reuse

Marco Malaguti,Lorenzo Craveri,Francesco Ricceri,Vincenzo Riggio,Mariachiara Zanetti,Alberto Tiraferri,

《工程(英文)》 doi: 10.1016/j.eng.2023.07.010

摘要: In the microalgae harvesting process, which includes a step for dewatering the algal suspension, directly reusing extracted water in situ would decrease the freshwater footprint of cultivation systems. Among various algae harvesting techniques, membrane-based filtration has shown numerous advantages. This study evaluated the reuse of permeate streams derived from Scenedesmus obliquus (S. obliquus) biomass filtration under bench-scale and pilot-scale conditions. In particular, this study identified a series of challenges and mechanisms that influence the water reuse potential and the robustness of the membrane harvesting system. In a preliminary phase of this investigation, the health status of the initial biomass was found to have important implications for the harvesting performance and quality of the permeate stream to be reused; healthy biomass ensured better dewatering performance (i.e., higher water fluxes) and higher quality of the permeate water streams. A series of bench-scale filtration experiments with different combinations of cross-flow velocity and pressure values were performed to identify the operative conditions that would minimize energy requirements while maximizing water productivity. The optimal conditions, 2.2 m·s−1 and 1.4 bar (1 bar = 105 Pa), respectively, were then applied to drive pilot-scale microfiltration tests to reuse the collected permeate as a new cultivation medium for S. obliquus growth in a pilot-scale photo-bioreactor. The investigation revealed key differences between the behavior of the membrane systems at the two scales (bench and pilot). It indicated the potential for beneficial reuse of the permeate stream as the pilot-scale experiments ensured high harvesting performance and growth rates of biomass in permeate water that were highly similar to those recorded in the ideal cultivation medium. Finally, different nutrient reintegration protocols were investigated, revealing that both macro- and micronutrient levels are critical for the success of the reuse approach.

关键词: Scenedesmus obliquus     Microfiltration     Permeate reuse     Harvesting     Microalgae     Pilot-scale    

Conservation and adaptive-reuse of historical industrial building in China in the post-industrial era

WANG Jianguo, JIANG Nan

《结构与土木工程前沿(英文)》 2007年 第1卷 第4期   页码 474-480 doi: 10.1007/s11709-007-0064-5

摘要: The conservation and adaptive-reuse of historical industrial building is one of the most important issues to be solved in today s urban development and construction in China. In this paper, the necessity and academic meaning of the conservation and adaptive-reuse of historical industrial building were discussed by reviewing its development rend both at home and abroad, and the basic contents of the implementation of the conservation and adaptive-reuse of historical industrial building in China with specific cases provided were analyzed. It is the central task for China to put forward the restructuring and design methods, assessment principles and relevant core technical specifications based on the empirical researches on the historical industrial building and site.

关键词: historical industrial     industrial building     implementation     adaptive-reuse     empirical    

Characterization of particle deposition during crossflow filtration as influenced by permeate flux and

Hongzhan Di, Gregory J. O. Martin, Dave E. Dunstan

《化学科学与工程前沿(英文)》 2021年 第15卷 第3期   页码 552-561 doi: 10.1007/s11705-020-1962-5

摘要: Particle deposition during crossflow filtration is significantly influenced by the operating conditions, in particular the permeate flux and crossflow velocity. However, there is a lack of detailed knowledge about how deposit layer structures and distributions depend on operating parameters. This study uses a microfluidic visualisation filtration system to examine the influence of operating conditions on the deposition process during crossflow ultrafiltration from a microscopic perspective. Increasing the permeate flux caused an increasing amount of deposition and a thicker deposit layer. Higher crossflow velocities reduced the extent of deposition. The degree of deposition varied over a range of operating conditions due to the altered hydrodynamic forces exerted on the particles, which can be examined by the deposition probability according to an existing model. Building on this, an empirical correlation between the deposition probability and volume of deposition as function of filtration time was developed, which gave good agreement with experimental results. The effect of solution conditions was also involved in this correlation as a interaction energies. This could be useful for predicting the dynamic deposition process during crossflow filtration over a range of operating and solution conditions.

关键词: particle deposition     crossflow filtration     microfluidics     confocal microscopy    

A review on sustainable reuse applications of Fenton sludge during wastewater treatment

《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1511-6

摘要:

• The sustainable approaches related to Fenton sludge reuse systems are summarized.

关键词: Fenton sludge     Heavy metals     Coagulant     Iron source     Heterogeneous catalyst    

Reuse of heavy metal-accumulating

Dongdong MA,Hongwen GAO

《环境科学与工程前沿(英文)》 2014年 第8卷 第6期   页码 952-959 doi: 10.1007/s11783-013-0619-8

摘要: Phytoremediation technology is regarded as a simple and efficient way to remove heavy metals from contaminated soil. A reasonable disposal of metal hyperaccumulators is always a major issue in waste reuse and resource-saving. The heavy metal-accumulating (L.) was investigated where heavy metals were desorbed by a facile acid-treatment. The result indicated that more than 90% of heavy metals (Zn, Pb and Cu) was extracted from with 0.2 mmol·L HCl. The plant residue was used to adsorb heavy metals ions. The adsorption fitted the Langmuir isotherm model with the saturation adsorption capacity of 9.5 mg·g Zn , 36.2 mg·g Pb and 12.9 mg·g Cu , and the surface complexation and the backfilling of heavy metal-imprinting cavities existed simultaneously during the adsorption. The treatment of wastewaters indicated that the plant residue exhibited a high removal rate of 97% for Cu. Also, the material could be recycled. The method offers a new disposal approach for heavy metal hyperaccumulator.

关键词: heavy metals     Cynondon dactylon     acid-treatment     adsorption     recycling    

Recovery and reuse of floc sludge for high-performance capacitors

《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1512-5

摘要:

• The feasibility of facile fabrication of capacitor from floc sludge is discussed.

关键词: Floc sludge     Porous carbon electrode     Energy storage performance     Supercapacitors    

Conservation and adaptive reuse of industrial heritage in Shanghai

ZHANG Song

《结构与土木工程前沿(英文)》 2007年 第1卷 第4期   页码 481-490 doi: 10.1007/s11709-007-0065-4

摘要: This paper takes a retrospective review of the evolution of the conservation of industrial heritage in urban Shanghai since the 1990s within the context of the international industrial heritage conservation movement, with the emph

关键词: evolution     industrial     international industrial     retrospective     Shanghai    

N95口罩重复使用

Dana Mackenzie

《工程(英文)》 2020年 第6卷 第6期   页码 593-596 doi: 10.1016/j.eng.2020.04.003

植物(秸秆)改性纤维资源化利用

罗学刚

《中国工程科学》 2004年 第6卷 第6期   页码 91-94

摘要:

文章概述了植物(秸秆)纤维助膨化改性的研究状况,以及几种目前最有发展潜力的应用技术,简要介绍了植物(秸秆)纤维助膨化技术在相关领域中的最新应用进展。

关键词: 技术创新     植物纤维     秸秆     改性     资源化利用    

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

《能源前沿(英文)》 2017年 第11卷 第4期   页码 414-436 doi: 10.1007/s11708-017-0507-1

摘要: Absorption heat pump attracts increasing attention due to its advantages in low grade thermal energy utilization. It can be applied for waste heat reuse to save energy consumption, reduce environment pollution, and bring considerable economic benefit. In this paper, three important aspects for absorption heat pump for waste heat reuse are reviewed. In the first part, different absorption heat pump cycles are classified and introduced. Absorption heat pumps for heat amplification and absorption heat transformer for temperature upgrading are included. Both basic single effect cycles and advanced cycles for better performance are introduced. In the second part, different working pairs, including the water based working pairs, ammonia based working pairs, alcohol based working pairs, and halogenated hydrocarbon based working pairs, for absorption heat pump are classified based on the refrigerant. In the third part, the applications of the absorption heat pump and absorption heat transformer for waste heat reuse in different industries are introduced. Based on the reviews in the three aspects, essential summary and future perspective are presented at last.

关键词: absorption     heat pump     heat transformer     waste heat     working pair    

Hydrophobic polyethersulfone porous membranes for membrane distillation

Heba ABDALLAH, Ayman EL-GENDI, Maaly KHEDR, Elham EL-ZANATI

《化学科学与工程前沿(英文)》 2015年 第9卷 第1期   页码 84-93 doi: 10.1007/s11705-015-1508-4

摘要: Membrane distillation (MD) is a thermal, vapor-driven transportation process through micro porous hydrophobic membranes that is increasingly being applied to seawater and brine desalination processes. Two types of hydrophobic microporous polyethersulfone flat sheet membranes, namely, annealed polyethersulfone and a polyethersulfone/tetraethoxysilane (PES/TEOS) blend were prepared by a phase inversion process. The membranes were characterized and their performances were investigated using the vacuum membrane distillation of an aqueous NaCl solution. The performances of the prepared membranes were also compared with two commercially available hydrophobic membranes, polytetrafluorethylene and polyvinylidene fluoride. The influence of operational parameters such as feed temperature (25–65 °C), permeate vacuum pressure (200–800 mbar), feed flow rate (8–22 mL/s) and feed salt concentration (3000 to 35000 mg/L) on the MD permeation flux were investigated for the four membranes. The hydrophobic PES/TEOS membrane had the highest salt rejection (99.7%) and permeate flux (86 kg/m ·h) at 65 °C, with a feed of 7000 ppm and a pressure of 200 mbar.

关键词: membrane distillation     hydrophobic membrane     salt rejection     permeate flux    

Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

《化学科学与工程前沿(英文)》 2011年 第5卷 第4期   页码 492-499 doi: 10.1007/s11705-011-1143-7

摘要: The effects of the operating pressure, cross flow velocity, feed concentration, and temperature on the streaming and Zeta potential of the membranes were studied. The permeate flux and the retention rate under different nanofiltration operating conditions were also investigated. The results show that the higher pressure, feed concentration, temperature, and lower cross flow velocity lead to the higher absolute value of streaming and Zeta potential. The permeate flux of the nanofiltration decreases with the feed concentration and increases with not only the pressure but also the cross flow velocity and temperature. The higher the pressure and the cross flow velocity, the higher the retention rate. The lower feed concentration and higher temperature leads to lower retention rate. The effects of the operating conditions on the permeate flux and the retention rate were explained by the variation of the membrane charge property.

关键词: nanofiltration membrane     streaming potential     Zeta potential     permeate flux     retention rate    

Technologies for pollutant removal and resource recovery from blackwater: a review

《环境科学与工程前沿(英文)》 2023年 第17卷 第7期 doi: 10.1007/s11783-023-1683-3

摘要:

● Blackwater is the main source of organics and nutrients in domestic wastewater.

关键词: Blackwater     Water-flushing toilet     Sanitation     Nutrient recovery     Water reuse     Sustainable development    

Climate change and its consequences for water and wastewater management

Peter A. WILDERER

《环境科学与工程前沿(英文)》 2009年 第3卷 第1期   页码 1-1 doi: 10.1007/s11783-009-0001-z

摘要: Life, in combination with solar radiation and abiotic processes, is most probably the reason why liquid water has existed on Earth for over billions of years, and the global mean temperature has remained in a life-enabling range. Efforts to limit or even reverse global warming must be derived from the knowledge of the Earth’s complex life-support system. In this context, the balance between liquid and gaseous water plays a crucial role, and water management becomes an important field of innovation and action, globally, on the scale of watersheds but also on the very local level. Cascading use, reuse, and temporary storage of water in urban settings must be considered to limit over-extraction of water from natural resources, and to maintain the life supporting function of ecosystems. At the same time, public health requirements, cost efficiency, and reliability demands are to be met.

关键词: ecosystem     management tools     self-regulation     urbanization     water-climate relationship     water reuse    

Role of water chemistry on estrone removal by nanofiltration with the presence of hydrophobic acids

Xue JIN,Jiangyong HU

《环境科学与工程前沿(英文)》 2015年 第9卷 第1期   页码 164-170 doi: 10.1007/s11783-014-0747-9

摘要: Hydrophobic acid organic matter (HpoA) extracted from treated effluent has been known to improve the rejection of steroid hormone estrone by reverse osmosis (RO) and nanofiltration (NF) membranes. In this study, the effects of solution chemistry (solution pH and ionic strength) on the estrone rejection by NF membrane with the presence of HpoA were systematically investigated. Crossflow nanofiltration experiments show that the presence of HpoA significantly improved estrone rejection at all pH and ionic strength levels investigated. It is consistently shown that the “enhancement effect” of HpoA on estrone rejection at neutral and alkaline pH is attributed to the binding of estrone by HpoA macromolecules via hydrogen bonding between phenolic functional groups in feed solutions, which leads to an increase in molecular weight and appearance of negative charge. The membrane exhibited the best performance in terms of estrone rejection at pH 10.4 (compared to pH 4 and pH 7) as a result of strengthening the electrostatic repulsion between estrone and membrane with the presence of HpoA. At neutral pH level, the ability of HpoA macromolecules to promote estrone rejection became stronger with increasing ionic strength due to their more extended conformation, which created more chances for the association between estrone and HpoA. The important conclusion of this study is that increasing solution pH and salinity can greatly intensify the “enhancement effect” of HpoA. These results can be important for NF application in direct/indirect potable water reuse.

关键词: indirect potable water reuse     steroid hormone     nanofiltration(NF)     rejection     water chemistry     hydrophobic acids    

标题 作者 时间 类型 操作

Scenedesmus Obliquus Cultivation Substrate with Microfiltration: Potential and Challenges for Water Reuse

Marco Malaguti,Lorenzo Craveri,Francesco Ricceri,Vincenzo Riggio,Mariachiara Zanetti,Alberto Tiraferri,

期刊论文

Conservation and adaptive-reuse of historical industrial building in China in the post-industrial era

WANG Jianguo, JIANG Nan

期刊论文

Characterization of particle deposition during crossflow filtration as influenced by permeate flux and

Hongzhan Di, Gregory J. O. Martin, Dave E. Dunstan

期刊论文

A review on sustainable reuse applications of Fenton sludge during wastewater treatment

期刊论文

Reuse of heavy metal-accumulating

Dongdong MA,Hongwen GAO

期刊论文

Recovery and reuse of floc sludge for high-performance capacitors

期刊论文

Conservation and adaptive reuse of industrial heritage in Shanghai

ZHANG Song

期刊论文

N95口罩重复使用

Dana Mackenzie

期刊论文

植物(秸秆)改性纤维资源化利用

罗学刚

期刊论文

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

期刊论文

Hydrophobic polyethersulfone porous membranes for membrane distillation

Heba ABDALLAH, Ayman EL-GENDI, Maaly KHEDR, Elham EL-ZANATI

期刊论文

Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

期刊论文

Technologies for pollutant removal and resource recovery from blackwater: a review

期刊论文

Climate change and its consequences for water and wastewater management

Peter A. WILDERER

期刊论文

Role of water chemistry on estrone removal by nanofiltration with the presence of hydrophobic acids

Xue JIN,Jiangyong HU

期刊论文