76 results match your criteria: "Beijing Engineering Research Center of Process Pollution Control[Affiliation]"

Cobalt/Peracetic Acid: Advanced Oxidation of Aromatic Organic Compounds by Acetylperoxyl Radicals.

Environ Sci Technol

April 2020

School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.

Peracetic acid (PAA) is increasingly used as an alternative disinfectant and its advanced oxidation processes (AOPs) could be useful for pollutant degradation. Co(II) or Co(III) can activate PAA to produce acetyloxyl (CHC(O)O) and acetylperoxyl (CHC(O)OO) radicals with little OH radical formation, and Co(II)/Co(III) is cycled. For the first time, this study determined the reaction rates of PAA with Co(II) ( = 1.

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Visible-Light Photocatalytic Ozonation Using Graphitic CN Catalysts: A Hydroxyl Radical Manufacturer for Wastewater Treatment.

Acc Chem Res

May 2020

Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.

Photocatalytic ozonation (light/O/photocatalyst), an independent advanced oxidation process (AOP) proposed in 1996, has demonstrated over the past two decades its robust oxidation capacity and potential for practical wastewater treatment using sunlight and air (source of ozone). However, its development is restricted by two main issues: (i) a lack of breakthrough catalysts working under visible light (42-43% of sunlight in energy) as well as ambiguous property-activity relationships and (ii) unclear fundamental reasons underlying its high yield of hydroxyl radicals (OH). In this Account, we summarize our substantial contributions to solving these issues, including (i) new-generation graphitic carbon nitride (g-CN) catalysts with excellent performance for photocatalytic ozonation under visible light, (ii) mechanisms of charge carrier transfer and reactive oxygen species (ROS) evolution, (iii) property-activity relationships, and (iv) chemical and working stabilities of g-CN catalysts.

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Aiming at SO and NO in industrial flue gas, the simultaneous removal of SO and NO was conducted using red mud as absorbent with O oxidation. The effects of different factors on the desulfurization and denitration efficiency were investigated. The results show that the increase of oxidation temperature is not conducive to the absorption of NO (O/NO molar ratio >1).

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A review of the catalysts used in the reduction of NO by CO for gas purification.

Environ Sci Pollut Res Int

March 2020

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.

The reduction of NO by the CO produced by incomplete combustion in the flue gas can remove CO and NO simultaneously and economically. However, there are some problems and challenges in the industrial application which limit the application of this process. In this work, noble metal catalysts and transition metal catalysts used in the reduction of NO by CO in recent years are systematically reviewed, emphasizing the research progress on Ir-based catalysts and Cu-based catalysts with prospective applications.

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New insights of enhanced anaerobic degradation of refractory pollutants in coking wastewater: Role of zero-valent iron in metagenomic functions.

Bioresour Technol

March 2020

Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, PR China.

Coking wastewater (CWW) has long been a serious challenge for anaerobic treatment due to its high concentrations of phenolics and nitrogen-containing heterocyclic compounds (NHCs). Herein, we proposed and validated a new strategy of using zero-valent iron (ZVI) to strengthen the anaerobic treatment of CWW. Results showed that COD removal efficiencies was increased by 9.

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Simultaneous Removal of NO and SO by MgO Combined with O Oxidation: The Influencing Factors and O Consumption Distributions.

ACS Omega

December 2019

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.

Simultaneous removal of NO and SO by MgO combined with O oxidation was studied. The effects of the O/NO molar ratio, oxidation temperature, and oxidation residence time on NO decomposition and O consumption distributions were systematically illustrated, which is of great significance for improving NO removal efficiency and reducing O consumption in practical application. When the O/NO molar ratio was greater than 1.

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Formation of sulfur trioxide during the SCR of NO with NH over a VO/TiO catalyst.

RSC Adv

November 2019

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China

The oxidation of sulfur dioxide (SO) to sulfur trioxide (SO) is an undesirable reaction that occurs during the selective catalytic reduction (SCR) of nitrogen oxides (NO ) with ammonia (NH), which is a process applied to purify flue gas from coal-fired power plants. The objectives of this work were to establish the fundamental kinetics of SO formation over a VO/TiO catalyst and to illustrate the formation mechanism of SO in the presence of NO , HO and NH. A fixed-bed reactor was combined with a Fourier transform infrared (FTIR) spectrometer and a Pentol SO analyser to test the outlet concentrations of the multiple components.

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Carbon consumption mechanism of activated coke in the presence of water vapor.

Environ Sci Pollut Res Int

January 2020

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.

To reduce chemical carbon consumption in activated coke technology used for flue gas purification, the carbon consumption mechanism of commercial activated coke in the presence of water vapor was studied. A fixed-bed reactor and a Fourier transform infrared (FTIR) spectrometer were combined to study the amount of carbon consumption. Temperature-programmed desorption (TPD) coupled with in situ diffuse reflectance infrared Fourier transform (in situ DRIFT) spectra were used to investigate functional group changes of activated coke.

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Advanced Oxidation Process with Peracetic Acid and Fe(II) for Contaminant Degradation.

Environ Sci Technol

November 2019

School of Civil and Environmental Engineering , Georgia Institute of Technology, Atlanta , Georgia 30332 , United States.

Fe(II) is an excellent promoter for advanced oxidation processes (AOPs) because of its environmental ubiquity and low toxicity. This study is among the first to characterize the reaction of peracetic acid (PAA) with Fe(II) ion and apply the Fe(II)/PAA AOP for degradation of micropollutants. PAA reacts with Fe(II) ( = 1.

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Peracetic acid (PAA) is a sanitizer with increasing use in food, medical and water treatment industries. Amino acids are important components in targeted foods for PAA treatment and ubiquitous in natural waterbodies and wastewater effluents as the primary form of dissolved organic nitrogen. To better understand the possible reactions, this work investigated the reaction kinetics and transformation pathways of selected amino acids towards PAA.

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Dataset of lithium phosphate recovery from a low concentrated lithium-containing solution.

Data Brief

August 2019

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production & Technology, Chinese Academy of Sciences, Beijing, 100190, China.

The lithium-containing solution is also rich in lithium after preparation of lithium carbonate. With the depletion of primary lithium resource, it is necessary to recovery lithium from a low concentrated lithium-containing solution which can solve the shortage of lithium resources and avoid the waste of lithium. In this article, the lithium phosphate is recovered from lithium-containing solution with a concentration of 2 g/L after preparation of lithium carbonate.

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Single-Atom Mn-N Site-Catalyzed Peroxone Reaction for the Efficient Production of Hydroxyl Radicals in an Acidic Solution.

J Am Chem Soc

July 2019

Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology , Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072 , China.

The peroxone reaction between O and HO has been deemed a promising technology to resolve the increasingly serious water pollution problem by virtue of the generation of superactive hydroxyl radicals (OH), but it suffers greatly from an extremely limited reaction rate constant under acidic conditions (ca. less than 0.1 M s at pH 3).

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Comprehensive characterization on Ga (In)-bearing dust generated from semiconductor industry for effective recovery of critical metals.

Waste Manag

April 2019

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production & Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100190, China. Electronic address:

Gallium (indium)-bearing dust generated from semiconductor industry is an important secondary resource for critical metal recycling. However, the diverse and distinct physicochemical natures of such waste material have made its recycling less effective, e.g.

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Ionic polymeric flocculants, as useful and widely used technology, have been applied for heavy metal pollution control. However, although molecular weight is an important indicator, it is not a comprehensive indicator for evaluating flocculation efficiencies of ionic flocculants. Herein, specific charge density (SCD), defined as charge density of unit molecular weight, is a new indicator to evaluate the performance of ionic polymer flocculants.

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The potential negative effects of perfluoroalkyl substances (PFASs) discharged into aquatic environments are drawing increasing attention. However, little research has been undertaken on PFASs in wastewater from electroplating industrial parks. In this study, the concentration profiles and geographical distribution of 11 PFASs were analyzed in water samples collected from different production workshops and an artificial landscaped lake.

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A Critical Perspective on CO₂ Conversions into Chemicals and Fuels.

J Nanosci Nanotechnol

June 2019

Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.

In this paper, we aim to focus on the utilization of carbon dioxide (CO₂) as a feedstock for synthetic applications in chemical and fuel industries, through catalytic carboxylation and reduction reactions. Thermal catalytic conversion as well as non-thermal plasma assisted and photocatalytic conversion CO₂ into fuels such as methane, methanol, and long-chain hydrocarbons using different catalyst especially nano catalyst are also thoroughly compared and reviewed in this paper. Among currently available technical routes, the thermal catalytic conversion of CO₂ via the Fischer-Tropsch (FT) synthesis using nanoscale catalyst offers the most feasible, practical and mature alternative for industrial-scale applications on the short term basis, converting gigantic quantity of CO₂ captured from power plants into hydrocarbons.

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Photocatalytic ozonation is an attractive advanced oxidation process for wastewater treatment, but highly active catalysts with strong response to visible light are urgently needed to push forward its practical application. In this study, a hierarchical biomimetic monoclinic bismuth vanadate (BiVO) with leaves morphology was synthesized by a hydrothermal method, and employed as catalyst for oxalic acid and penicillin degradation in photocatalytic ozonation. The results show that the organics degradation was more efficient using leaves shaped BiVO as catalyst than the bulk shaped one in photocatalytic ozonation and the synergy index is ranged from 2.

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Municipal wastewater treatment plants (WWTPs) will face challenges in the coming decades including reducing energy consumption and decreasing carbon emissions. These challenges can be addressed by combining electrochemical, biological, and bio-electrochemical technologies within existing WWTPs. The results from this review indicate that electrochemical technology is an effective advanced treatment method for WWTPs.

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Lithium carbonate recovery from lithium-containing solution by ultrasound assisted precipitation.

Ultrason Sonochem

April 2019

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production & Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China. Electronic address:

Lithium carbonate (LiCO), one of the most important lithium compounds, is usually prepared from lithium-containing solution. The lithium recovery rate and the purity of LiCO are highly dependent on the lithium concentration. In order to get a high lithium recovery rate, high concentrated lithium-containing solution is required, while the purity of LiCO can be low remaining a significant amount of impurities.

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Photo-triggered conversion of hydrophilic fluorescent biomimetic nanostructures for cell imaging.

Chem Commun (Camb)

January 2019

Beijing Engineering Research Center of Process Pollution Control, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.

Fluorescent nanoarchitectures, such as hydrophobic micelles and hydrophilic vesicles decorated with fluorescent carbon nanoparticles, were fabricated from one fatty acid by means of photo-triggering. The biomimetic nanostructures, like cell membrane structures, have applications in fluorescence imaging in both the cell cytoplasm and nucleus. Besides, hydrophobic micelles can be used as very stable fluorescent inks.

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A sustainable process for metal recycling from spent lithium-ion batteries using ammonium chloride.

Waste Manag

September 2018

Beijing Engineering Research Center of Process Pollution Control, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China. Electronic address:

In this paper, a sustainable process to recover valuable metals from spent lithium ion batteries (LIBs) in sulfuric acid using ammonium chloride as reductant was proposed and studied. Being easily reused, ammonium chloride is found to be efficient and posing minor environmental impacts during the overall process. By investigating the effects of a wide range of parameters, e.

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Catalytic oxidation of chlorobenzene over noble metals (Pd, Pt, Ru, Rh) and the distributions of polychlorinated by-products.

J Hazard Mater

February 2019

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China.

Catalytic oxidation of chlorobenzene over noble metal catalysts Pd/TiO, Pt/TiO, Ru/TiO, and Rh/TiO was evaluated, and Ru/TiO contributed the highest catalytic activity and CO selectivity. During the oxidation, polychlorinated benzenes PhCl (x ≥ 2) were observed, and Ru/TiO showed apparently lower PhCl concentrations than other three samples. With the improvement of temperature, the maximum concentration appeared in the sequence of dichlorobenzene (PhCl), trichlorobenzene (PhCl), tetrachlorobenzene (PhCl), and pentchlorobenzene (PhCl), whereas the concentration of hexachlorobenzene (PhCl) was always low and showed no apparent regularity.

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Nitrogen-rich core-shell structured particles consisting of carbonized zeolitic imidazolate frameworks and reduced graphene oxide for amperometric determination of hydrogen peroxide.

Mikrochim Acta

October 2018

State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China.

Core-shell structured particles were prepared from carbonized zeolitic imidazolate frameworks (ZIFs) and reduced graphene oxide (rGO). The particles possess a nitrogen content of up to 10.6%.

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Catalytic oxidation of ethyl acetate over LaBO (B = Co, Mn, Ni, Fe) perovskites supported silver catalysts.

RSC Adv

September 2018

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China

A series of silver catalysts supported on lanthanum based perovskites LaBO (B = Co, Mn, Ni, Fe) were synthesized and evaluated in the catalytic oxidation of ethyl acetate. XRD, BET, TEM/HRTEM, HAADF-STEM, XPS and H-TPR were conducted, and the results indicate that redox activity of the catalysts is of great importance to the oxidation reaction. Activity tests demonstrated that Ag/LaCoO was more active than the other samples in ethyl acetate oxidation.

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Evaluation of sulfur trioxide detection with online isopropanol absorption method.

J Environ Sci (China)

October 2018

Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Cleaner Hydrometallurgical Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China. Electronic address:

Measurement of the SO concentration in flue gas is important to estimate the acid dew point and to control corrosion of downstream equipment. SO measurement is a difficult question since SO is a highly reactive gas, and its concentration is generally two orders of magnitude lower than the SO concentration. The SO concentration can be measured online by the isopropanol absorption method; however, the reliability of the test results is relatively low.

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