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Progress in Natural Science:Materials International 2023年第4期33卷 478-485页

作者： Xudong Zhao Linshuai Zhang Baosheng Liu Chengwei Zhang Huifang Zhao Chong-Chen Wang Dahuan Liu College of Chemical Engineering and Technology Taiyuan University of Science and Technology College of Materials Science and Engineering Engineering Research Center for Magnesium Alloy of Shanxi Province Taiyuan University of Science and Technology State Key Laboratory of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation Beijing University of Civil Engineering and Architecture

Metal-organic frameworks(MOFs) attract considerable interests in various fields while relatively high cost limits their industrial-level use. Herein, we proposed a total-waste preparation route for Fe/Cr-MIL-88B(MIL, Mat erial Institut Lavoisier), in which stainless steel pickling wastewater(PW) and waste polyethylene terephthalate(PET)act the total raw materials. Interestingly, PET is easily decomposed to terephthalic acid(H2BDC) under the strong acid environment of PW. Benefited from that, the formation of MOFs from PET and PW can be achieved via one-pot hydrothermal reaction, superior to the traditional two-step method. The obtained MIL-88B exhibits long-term acid/base stability and high removal efficiency for zirconium(Ⅳ) ion. Besides, the structure and adsorption performance of the products are not controlled by the discharge batch of the pickling wastewater, indicating the feasibility for continuous production in industry. Thus, our work provides a feasible route for preparing low-cost MOFs and recycling industrial wastes.

关键词： Metal-organic framework industrial waste Resource recycle Adsorption

Isolation of Thermally Stable Cellulose Nanocrystals from Spent Coffee Grounds via Phosphoric Acid Hydrolysis

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Journal of Renewable Materials 2020年第2期8卷 187-203页

作者： Brody A.Frost E.Johan Foster Virginia Tech Department of Materials Science and EngineeringMacromolecules Innovation Institute117 SurgeVirginia TechBlacksburgVA 24061USA

As the world's population exponentially grows,so does the need for the production of food,with cereal production growing annually from an estimated 1.0 billion to 2.5 billion tons within the last few *** rapid growth in food production results in an ever increasing amount of agricultural wastes,of which already occupies nearly 50%of the total landfill *** example,is the billions of dry tons of cellulose-containing spent coffee grounds disposed in landfills *** paper seeks to provide a method for isolating cellulose nanocrystals(CNCs)from spent coffee grounds,in order to recycle and utilize the cellulosic waste material which would otherwise have no *** have already been shown to have vast applications in the polymer engineering field,mainly utilized for their high strength to weight ratio for reinforcement of polymer-based nanocomposites.A successful method of purifying and hydrolyzing the spent coffee grounds in order to isolate usable CNCs was *** CNCs were then characterized using current techniques to determine important chemical and physical properties.A few crucial properties determined were aspect ratio of 12±3,crystallinity of 74.2%,surface charge density of(48.4±6.2)mM/kg cellulose,and the ability to successfully reinforce a polymer based *** characteristics compare well to other literature data and common commercial sources of CNCs.

关键词： Cellulose nanocrystals phosphoric acid hydrolysis agricultural waste industrial waste spent coffee grounds polymeric nanocomposites renewable cellulosic materials

Recent development,utilization,treatment and performance of solid wastes additives in asphaltic concrete worldwide:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第5期9卷 693-724页

作者： Tracy Leh Xin Wong Mohd Rosli Mohd Hasan Leo Choe Peng School of Civil Engineering Universiti Sains Malaysia14300 Nibong TebalPinangMalaysia School of Chemical Engineering Universiti Sains Malaysia14300 Nibong TebalPinangMalaysia

Asphalt modifications either involved commercial or recycled waste materials modifiers help optimise and improve the deficient properties of asphalt mixtures relative to current *** manuscript reviews the recycling of waste materials generated from various sources such as household,agricultural and industrial to minimise natural resources exploitation,lower energy demand,and enhance overall pavement *** actual development and implementation of recycled asphalt pavement in numerous countries in Asia,North America,South America,Europe and Africa are emphasised,and their influence on the performance of asphalt pavements is *** pavement showed satisfying performance for years as maintenance and restoration are not ***,solid wastes are required to undergo pre-requisite treatments via mechanical,biological stabilization,thermal or chemical methods before the implementation as asphalt modifiers to ease the handling *** damage issues have been spotted in the implementation of several types of solid wastes and consequently reduced the strength and durability of ***,potential hydrophobic treatment can be adopted to improve the quality of asphalt mixtures by modifying the hydrophilic characteristics that are contributed by the hydroxyl groups on the cellulose nanocrystals(CNCs)or providing a superhydrophobic coating onto the *** treatments greatly weakened the moisture sensitivity of modified materials by reducing their water absorption and increasing their water contact *** modified mixtures are necessary to have identical or enhanced pavement performance to the conventional ***,future researchers are encouraged to broaden the research field in pavement engineering by considering chemical treatments in improving material properties to achieve cost-saving,efficient waste management,and higher commercial *** implementing any virgin materials,waste material

关键词： Sustainable pavement industrial waste Cleaner environment Resources preservation Hydrophobic treatments Mechanical performances

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Research and Application Status and Development Trend of Alkali-Activated Binder Powder for Mine Backfill

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Journal of Renewable Materials 2022年第12期10卷 3185-3199页

作者： Qian Zhou Yueyue Zhang Juanhong Liu Aixiang Wu Hongjiang Wang School of Civil and Resource Engineering University of Science and Technology BeijingBeijing100083China Key Laboratory of the Ministry of Education of China High-Efficient Mining and Safety of Metal Mines Beijing100083China Beijing Key Laboratory of Urban Underground Space Engineering Beijing100083China

To improve the economic and social benefits of mining and backfill,it is necessary to find the backfill materials suitable for mineral mining,improve the various properties of the filling materials,and develop low cost,high performance new filling *** cement is neither environmentally friendly nor ***,we have begun to study and apply some industrial waste,such as slag,fly ash,and other solid wastes,with certain activities as the primary component of cementing material that will not only meet the technical requirements of filling,but also comprehensively utilize industrial waste and possess a benign,sustainable lifecycle for environmental *** study expounds the composition and reaction mechanism of alkali-activated binder powder used for cemented paste backfill material,summarizes the research and application status of alkaliactivated binder powders,including mechanics,durability,economic and environmental,and discusses future development directions for mine binder *** needs to continue to expand the utilization range of solid waste and improve the utilization rate of solid waste in the *** development and research of this binder powder plays an important role in the progress of filling ***,the research about alkali-activated binder powder contains great development potential and broad prospects.

关键词： Mine backfill paste industrial waste binder powder green environmental protection

Influence of CG With High Content of Metallic Particles as a Cement Admixture on Cement Strength

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Journal of Wuhan University of Technology(Materials Science) 2003年第2期18卷 65-67页

作者：万惠文 Wuhan University of Technology

Copper gangue (CG), containing a large amount of water with grain sizes of 0.037 to 0.10mm,is an inactive industrial waste generated from copper refineries. When it is dried and used as a cement admixture, the influence of the presence of finely dispersed metallic particles in CG on the microstructure and compressive strength of cement paste has been *** results show that the higher the replacement of CG is,the lower the compressive strength of cement mortar ***,the long-term strength of the specimens with 10% CG,especially after being cured for 3 months,approached to that of the plain *** mechanism was studied by an electron probe X-ray microanalyzer (EPXMA).The results indicate that a small quantity of Fe(OH) 3·nH 2O slowly formed from Fe 2O 3 in the presence of Ca(OH) 2, free CaO and MgO of the clinker also slowly hydrated and formed Ca(OH) 2 and Mg(OH) 2 respectively,so the hardened cement paste became more compact.

关键词： metallic particles industrial waste copper gangue cement admixture distribution of element

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Development of Soda Residue Concrete Expansion Agent

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Journal of Wuhan University of Technology(Materials Science) 2003年第3期18卷 79-82页

作者：王宝民 M F Mohd Zain F C Lai Department of Civil Engineering Dalian University of Technology Faculty of Engineering U.K.M (Malaysia)

A new type of concrete expansion agent has been successfully developed for the first time in the world by utilizing an industrial waste residue soda residue and an industrial *** 3%-6% of the agent into Portland cement enables a shrinkage compensating concrete to be *** and concrete containing this expansion agent have better shrinkage compensating and mechanical *** raw materials component,production process,technical properties,micro analysis of mortar made with this expansion agent,mechanism of expansion and research results are described in this *** experimental results show that the new type of concrete expansion agent accords with the standard and its main mineral component is xCaO ySO 3 zAl 2O 3.

关键词： industrial waste soda residue concrete expansion agent expansive concrete shrinkage compensating concrete

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Source analysis of dissolved heavy metals in the Shaying River Basin,China

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Journal of Groundwater Science and Engineering 2023年第4期11卷 408-421页

作者： Ya-wei Zhang Yun-tao Liu Zi-wen Wang Yu Cao Xiao-ran Tu Di Cao Shuai Yuan Xiao-man Cheng Lian-sheng Zhang School of Environmental Studies China University of GeosciencesWuhan 430074China Henan Fifth Geological Exploration Institute Co. Ltd.Zhengzhou 450001China Henan Second Geological Survey Institute Co. Ltd.Zhengzhou 450001China Henan Rock and Mineral Testing Center Zhengzhou 450001China

Over the years,the Shaying River Basin has experienced frequent instances of river *** presence of numerous critical pollutant discharge enterprises and sewage-treatment plants in the vicinity of the Shaying River has transformed it a major tributary with relatively serious pollution challenge within the upper reaches of Huaihe River *** study the sources of manganese(Mn),chromium(Cr),nickel(Ni),arsenic(As),cadmium(Cd)and lead(Pb)in Shaying River water,123 sets of surface water samples were collected from 41 sampling points across the entire basin during three distinct phases from 2019 to 2020,encompassing normal water period,dry season and wet *** primary origins of heavy metals in river water were determined by analyzing the heavy metal contents in urban sewage wastewater,industrial sewage wastewater,groundwater,mine water,and the heavy metal contributions from agricultural non-point source *** analytical findings reveal that Mn primarily originates from shallow groundwater used for agricultural irrigation,While Cr mainly is primarily sourced from urban sewage treatment plant effluents,coal washing wastewater,tannery wastewater,and industrial discharge related to metal processing and *** is mainly contributed by urban sewage treatment plant effluents and industrial wastewater streams associated with machinery manufacturing and metal *** primarily linked to industrial wastewater,particularly from machinery manufacturing and metal processing facilities,while Pb is predominantly associated with urban sewage treatment plant effluents and wastewater generated in Pb processing and recycling *** research provides a crucial foundation for addressing the prevention and control of dissolved heavy metals at their sources in the Shaying River.

关键词： industrial waste Urban sewage Mine water Agricultural non-point source pollution

Spatial Distribution of Heavy Metals in Surface Sediments of the Sakumo Lagoon, Ghana

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Journal of Environmental Science and Engineering 2010年第11期4卷 17-27页

作者： V.K. Nartey K.A. Edor L.K. Doamekpor L.H. Bobobee Department of Chemistry University of Ghana Legon-Accra Ghana Fire Academy and Training Ghana National Fire Service Accra Ghana Department of Science Education University of Education Winneba Ghana

The aim of this study was to determine the possible build up of heavy metals （Pb, Cu, Fe, Mn and Zn） in the Sakumo lagoon, a Ramsar site situated 3 km west of Tema, an industrial town in Ghana. To achieve this, surface sediments were collected from three sections designated as south, centre and north of the lagoon. Sampling was done for a period of six months （September 2007 to February 2008） and concentrations of the heavy metals （Pb, Cu, Mn, Fe and Zn） in the sediments were determined using the atomic absorption spectrophotometer. The results were compared with the mean concentrations of these metals from a study carried out on the same lagoon in 2003. It was observed that concentrations of these heavy metals in the sediments showed a significant increase over the 2003 levels except for lead where a decrease was observed. The metals also showed spatially large variation from south to north. The spatial variations in concentrations indicate the different absorption capacities of the sediments in the lagoon, a phenomenon which shows that recent anthropogenic heavy metal pollution had occurred. Statistical analysis also showed significant correlation between Pb and Cu （0.968） at 0.01 confidence level and between Cu and Zn （0.869） at 0.05 confidence level.

关键词： Heavy metal pollution benthic organisms industrial waste municipal sewage.

Toxicological and Life-Cycle Perspectives on waste-Derived Nanoparticles

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Journal of Materials Science and Chemical Engineering 2024年第8期12卷 43-68页

作者： Irshad Ahmad Md Fahimul Hassan Weqar Ahmad Siddiqui Department of Applied Science & Humanities Faculty of Engineering & Technology Jamia Millia Islamia University New Delhi India Department of Chemistry C.M. Science College Lalit Narayan Mithila University Darbhanga India

Many nanoparticles have been created over the last few decades using a variety of techniques and used to develop environmental technology, including water treatment, the detection of persistent contaminants, and soil and water remediation. The studies of alternative inputs for nanoparticle production as well as the use of green synthesis techniques are driven by the field of materials science and engineering’s growing interest in increasing the sustainability of the processes involved in their production. In this paper, we begin by providing an overview of the fundamental principles of producing nanoparticles from different sources, such as plastic, electronic, metal, and industrial waste. We elaborate on key facts of waste identification as a workable input for the treatment and recovery of metal and carbon-based nanoparticles. We next go over several controlling factors that play a role in creating nanoparticles, pointing out probable conclusions as we go. Then, we show some instances of waste-derived nanoparticles used in a proof-of-concept experiment of technology for applications in water quality and safety. Before scaling up production and implementing waste-derived nanoparticles, there are several present problems from the toxicological and life-cycle perspectives that must be taken into account.

关键词： industrial waste Plastic Trash Metal waste Carbon Nanoparticles Nanoparticle-Enabled Technologies Electronic-waste

Letter from Editors-in-Chief

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Engineering 2015年第1期1卷 158-158页

作者： Zhihua Zhong Raj Reddy 不详

Engineering comes to you at last. As the Editors-in-Chief of En- gineering, first of all, we wish to thank all the scholars at home and abroad for their eager responses and full support, and all those who have provided encouragement and contributions toward the emergence of this journal. Looking back over the history of human civilization, hu- man survival is closely related to the development of social productive forces, which come from engineering science and technology （EST）. Along with today＇s rapid economic and social development, we face common threats from global problems such as food safety, resource shortages, energy cri- ses, environmental pollution, climate change, network attacks, population expansion, poverty, the prevalence of disease, and economic crises. Therefore, EST research that addresses these major issues of economic development appears to be par- ticularly important. At present, a new scientific and technical revolution, including wide spread industrial transformation, is flowing together with new developments in human society. Historically, we know that progress and innovation in EST is a crucial engine for promotin~ progress in human society.

关键词： CO2 mineralization natural mineral industrial waste science and engineering