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Impact of industrial wastewater disposal on surface water bodies in Mostord area, North Greater Cairo

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Journal of Environmental Sciences 2001年第4期13卷 485-490页

作者： M.F.Abdel Sabour 1, F.H.Rabie 2, T.Mostafa 3, S.A.Hassan 4 (1 Soil and Water Pollution Unit, Nuclear Research Center, Egypt. 2 Soil Department, Faculty of Agricultural, Ain Shams University, Egypt 3 Soils, Water and Environment Research Instit Soil and Water Pollution Unit Nuclear Research Center 埃及 Ain Shams University 埃及 Soils Water and Environment Research Institute ARC 埃及 Soils Water and Environment Research InstituteARC 埃及

The studied area (Shoubra El Khima, Bahteem and Mostorod) lies in the industrial area north of Greater Cairo. The area suffers from several environmental problems such as sewage and disposal of pollutants from the surrounding factories into the surface water pathways in the area. Water samples were collected seasonally from different waterways found in the area, domestic and or industrial liquid wastes from 12 discharge tubes of different factories (as a point source of pollution). Chemical characteristics of different water samples and its heavy metals content were determined using ion coupled plasma technique (ICP). Results indicate that industrial and domestic wastewater samples contain several toxic levels of tested heavy metals (Cd, Co, Pb and Ni) which have a serious impact on surface waterways in the area. Shebin El Qanater collector drain samples exhibited the highest levels of Cd, Co, Pb and Ni compared to other tested water bodies. Mostorod collector drain samples showed the highest levels of Zn and Cu. industrial effluent samples collected from Cairo Company for Fabric industry had the highest amounts of total Zn Cu, Cd, Co and Pb, while Delta steel company discharges the highest amounts of total Fe and Mn. Al Ahleya Plastic Company discharges the highest amounts of total Ni. Generally, it is necessary to impose the environmental laws and its regulation regarding the industrial wastewater treatments and disposals to minimize the risk of the adverse effects of these pollutants.

关键词： industrial wastewater disposal north Greater Cairo Egypt

Rapid recovery of rare earth elements in industrial wastewater by CuFe_2O_4 synthesized from Cu sludge

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Journal of Rare Earths 2018年第5期36卷 513-520页

作者： Yao-Jen Tu Cliff T.Johnston Institute of Urban Study Shanghai Normal University Crop Soil and Environmental SciencesPurdue University

This study systematically evaluates the recovery of rare earth elements（REEs） from aqueous solution and industrial wastewater using magnetic nanoparticles CuFe2O4. The industrially manufactured CuFe2O4 displays a nonlinear isotherm for REEs adsorption, suggesting limiting binding sites on the CuFe2O4 surface. The recovery of REEs increases significantly from 0.1% to 99.99% with increasing pH（2.29-8.15）. At room temperature, the maxima recovery rates of Nd, La, and Ce are observed to be in a high capacity of 51.02, 42.02, and 40.16 mg/g, respectively. No significant attenuation of REE adsorption is observed with increasing NaCl concentration from 0.001 to 1.0 mol/L, showing high selectivity of REEs even in such high NaCl concentration matrix. In addition, desorption efficiency increases with the increasing concentration of HNO3 in the range of 0.005-0.05 mol/L. When HNO3 concentration is over 0.05 mol/L, the desorption efficiency can reach almost 100% in each batch experiment. Importantly, our results show that REEs can be sorbed and recycled from liquid crystal display（LCD） polishing wastewater, suggesting that CuFe2O4 may be a good candidate in the efficient and rapid recovery of REEs from industrial wastewater.

关键词： Rare earth elements industrial wastewater industrial sludge Magnetic separation CuFe2O4

Outline and management of industrial wastewater in China

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Journal of Environmental Sciences 1996年第4期8卷 434-442页

作者： Chen Xingwu Li Qingshu (China National Environmental Protection Agency (NEPA),Beijing 100037, China) China Natl. Environ. Protect. Agency Beijing 100037 China

The essay covers the discharge and percentage of treatment of industrial wastewater in China before 1992,the analysis of industrial wastewater pollution to the environment and the problems and corrective measures to prevent and control the pollution caused by industrial wastewater in China.Water pollution is one of main environrnental problems in China. And industrial wastewater is a very important source to make water pollution. It is a key task to prevent industrial wastewater pollution and protect water quality of rivers, lakes (reservoirs), underground water in Chinese water environmental management.

关键词： industrial wastewater environmental rnanagement China.

Highly selective and sensitive colorimetric chemosensor based on tricarboyanine for detection of Ag^(+) in industrial wastewater

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Journal of Leather Science and Engineering 2020年第1期2卷 185-195页

作者： Xiaolong Zeng Xuezhao Li Wen Sun State Key Laboratory of Fine Chemicals Dalian University of Technology2 Linggong RoadHi-Tech ZoneDalian 116024China Max Planck Institute for Polymer Research Ackermannweg 1055128 MainzGermany

An efficient fluorescent probe 1 based on tricarbocyanine derivative was designed and synthesized,which can detect Ag^(+) in real industrial wastewater.UV-V is absorption and fluorescent emission spectra of probe 1 were carried out and indicated this probe can bind Ag^(+) via complexation reaction,then leading to a remarkable color change from blue to light red.Furthermore,probe 1 showed high sensitive performance and excellent selectivity toward Ag^(+) over other common metal ions in neutral pH.The sensing mechanism was proposed and further confirmed by ^(1)H NMR,which demonstrate analyte-induced destruction of the π-electron system could be shorten by the disruption of the pull-push π-conjugation system in probe 1.Moreover,a test strip was prepared by filter paper immersing in probe 1 solution,which further provide its potential application for trace Ag^(+) detection in real industrial wastewater.

关键词： Fluorescent chemosensor Cyanine Silver ion detection industrial wastewater

Carbon materials in electrocatalytic oxidation systems for the treatment of organic pollutants in wastewater:A review

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Carbon Resources Conversion 2023年第4期6卷 262-273页

作者： Xintong Duan Dezhang Ren Shichun Wang Mengjie Zhang Yaguang Sun Shujing Sun Zhibao Huo Nahui Zhang College of Marine Ecology and Environment Shanghai Ocean University999 Huchenghuan RoadShanghai 201306China The Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province Shenyang University of Chemical TechnologyShenyang 110142China Liaoning Ecological Environmental Monitoring Center Shenyang 110165China

Carbon materials are widely used as catalysts in electrocatalytic oxidative(EO)degradation of wastewater due to their large specific surface area and low cost.Carbon materials can also be used as catalyst carriers for EO reactions due to their ease of functionalization with other heteroatoms and metals/metal oxides.To improve the catalytic activity and current efficiency of carbon materials,modifying the structural and physicochemical properties of conventional carbon materials are common improvement method.This review briefly outlines the recent research progress of carbon materials in EO for organic pollutants degradation.It also discusses the modification strategies and corresponding electrocatalytic properties of various carbon materials(carbon nanomaterials and porous carbon materials),and explores the EO mechanism.Finally,some summaries of the remaining challenges and future developments of carbon materials in the field of electrocatalysis are given.

关键词： Carbon materials Electrocatalytic oxidation industrial wastewater Mechanism

A new model concerning the relationship between industrial wastewater generation, abatement rate, discharge and economy in China

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A new model concerning the relationship between industrial w...

industrial wastewater treatment using airlift bioreactor

2011 International Conference on Energy and Environment(ICEE 2011)

作者： Jing Zhang Shi-huai Deng Yan-zong Zhang Qiang Tang Provincial Key Laboratory of Agricultural Environmental Engineering Sichuan Agricultural University Institute of Mountain Hazards and environment Chinese Academy of Sciences

an empirical model was developed to investigate the long-debated relationship between industrial wastewater and economic development. Special attention was directly towards the connection between pollution characteristics（including generation, abatement, and discharge of industrial waste water） and rate of economic advancement. The relationship between industrial wastewater characteristics and gross domestic product（GDP） was examined using regression analysis by observed data in China from 1985 to 2006. The results show that the distribution of the observed data is in high accordance with that of the data calculated from the model. The relationships between GDP with industrial wastewater generation（IWWG）, abatement rate（TR） and industrial wastewater discharge（IWWD）, and demonstrate V-shaped, double connected inverse S-shaped, and reduced curves, respectively. IWWD conforms to the Environmental Kuznets Curve（EKC） at the situation of the rising left leg of the unobserved curve.

关键词： Environmental Kuznets Curve Environmental measures Economic growth industrial wastewater

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Industrial wastewater treatment using airlift bioreactor

Two-dimensional nanomaterials confined single atoms: New opportunities for environmental remediation

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作者： CHEN Shailin,FAN Yi,YANG Haiguang,DING Fuxin (Department of Chemical Engineering,Tsinghua University,Beijing 100084,P.R.China)

＜正＞ A novel wastewater treatment process,using airlift bioreactor as aeration device,was proposed in this paper.Application of this process in industrial wastewater treatment was illustrated by several practical cases.And the results in practices have shown that airlift bioreactor has a good technical feasibility and a promising market future in the field of industrial wastewater treatment.

关键词： industrial wastewater airlift bioreactor activated sludge process porous carriers

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Nano Materials Science 2023年第1期5卷 15-38页

作者： Yu Yin Lei Shi Shu Zhang Xiaoguang Duan Jinqiang Zhang Hongqi Sun Shaobin Wang School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212100China Joint International Research Laboratory of Biomass Energy and Materials College of Materials Science and EngineeringNanjing Forestry UniversityNanjing210037China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaideSA5005Australia School of Science Edith Cowan UniversityJoondalupWA6027Australia

Two-dimensional(2D)supports confined single-atom catalysts(2D SACs)with unique geometric and electronic structures have been attractive candidates in different catalytic applications,such as energy conversion and storage,value-added chemical synthesis and environmental remediation.However,their environmental appli-cations lack of a comprehensive summary and in-depth discussion.In this review,recent progresses in synthesis routes and advanced characterization techniques for 2D SACs are introduced,and a comprehensive discussion on their applications in environmental remediation is presented.Generally,2D SACs can be effective in catalytic elimination of aqueous and gaseous pollutants via radical or non-radical routes and transformation of toxic pollutants into less poisonous species or highly value-added products,opening a new horizon for the contami-nant treatment.In addition,in-depth reaction mechanisms and potential pathways are systematically discussed,and the relationship between the structure-performance is highlighted.Finally,several critical challenges within this field are presented,and possible directions for further explorations of 2D SACs in environmental remediation are suggested.Although the research of 2D SACs in the environmental application is still in its infancy,this review will provide a timely summary on the emerging field,and would stimulate tremendous interest for designing more attractive 2D SACs and promoting their wide applications.

关键词： Single-atom catalysis Two-dimensional material Advanced oxidation process Degradation Transformation industrial wastewater

Nanometer lanthanum hydroxide modified anionic polymer for deep fluoride removal: Adsorption properties and mechanism study

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Progress in Natural Science:Materials International 2023年第6期33卷 833-842页

作者： Bingling Jia Ye Li Junpeng Guo Feng Zhou Yunchen Guo Yunhang Yang Department of Resources and Environmental Engineering Wuhan University of Technology

The development of chemical industry has brought about serious fluoride pollution,and there is an urgent need to develop an adsorbent with high efficiency and stability for fluoride removal.Despite the remarkable adsorption capacity of lanthanum hydroxide hydrate for fluoride ions,its industrial application is limited by powder leaching and strict pH requirements.In this study,lanthanum-containing anionic resin(HLO-D201) was synthesized by the method of precursor introduction and in-situ deposition,mainly by introducing La3+into the resin,adding sodium hydroxide to precipitate it in the resin pore,forming hydrated lanthanum oxide.The characterization analysis showed that hydrated lanthanum oxide(HLO) was successfully introduced into the porous matrix of the resin and existed in the form of crystalline hydrated oxide.Static adsorption experiments demonstrated that HLO-D201could effectively adsorb fluoride ions in a wide pH range(2-10).Since nano La(OH)3was encapsulated in the resin pore,the loss of La(OH) 3 was greatly reduced,and under the condition of competitive adsorption of several coexisting ions,Only phosphoric acid group interferes obviously with the adsorption of F-.The synthesized HLO-D201 still showed good adsorption capacity after regenerated by NaOH-NaCl composite solution for six times.The removal mechanism of fluoride by HLO-D201 is mainly electrostatic attraction and ligand exchange.Overall,HLO-D201 is a kind of fluorine removal adsorbent with excellent performance and wide application prospects.

关键词： Fluoride adsorption Anionic resin industrial application Hydrated lanthanum oxide industrial wastewater