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Copper single atoms/atomic clusters modified electrocatalytic membrane for antibiotic removal and membrane fouling control via electro-Fenton reactions

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Chemical engineering Journal 2025年 515卷

作者： Zixin Zhang Guohe Huang Yongping Li Yao Yao Xiujuan Chen Yuanzheng Zhang Yifei Luo Kai Zhao State Key Laboratory of Regional Environment and Sustainability School of Environment Beijing Normal University Beijing 100875 China State Key Laboratory of Regional Environment and Sustainability China-Canada Center for Energy Environment and Ecology Research UR-BNU School of Environment Beijing Normal University Beijing 100875 China Environmental Systems Engineering Program University of Regina Regina Saskatchewan S4S 0A2 Canada Institute for Energy Environment and Sustainable Communities University of Regina Regina S4S 0A2 Canada Department of Civil Engineering The University of Texas at Arlington Arlington TX USA College of Environmental Science and Engineering North China Electric Power University Beijing 102206 China

Low-pressure membrane filtration is an important technology for water treatment but suffers from the inefficient removal of low-molecular-weight pollutants (such as antibiotics) and severe membrane fouling. Herein, an electrocatalytic membrane (Cu SAs/ACs -NC/CMM) modified with the catalyst containing Cu single atoms (SAs) and atomic clusters (ACs) composite active sites was prepared for the removal of tetracycline (TC) and the control of membrane fouling. Cu ACs synergistically interacted with Cu SAs, enabling a high-efficiency electro-Fenton process. In addition to serving as the main active site for the in-situ generation of H 2 O 2 , Cu ACs could also induce the charge rearrangement of Cu SAs, thus reducing the energy barrier of H 2 O 2 activation into ·OH at the Cu SAs site. Cu SAs/ACs -NC/CMM produced ·OH through a sequential reaction of H 2 O 2 generation and activation to oxidize pollutants. At a low voltage of −2.5 V, Cu SAs/ACs -NC/CMM delivered excellent TC removal kinetics (0.0181 min −1 ) and removal ratio (90.0 %), and effectively reduced the membrane fouling caused by the mixture of humic acid (HA), bovine serum albumin (BSA), and sodium alginate (SA). Cu SAs/ACs -NC/CMM also performed well under actual water conditions. This work proposes a strategy for developing electrocatalytic membranes using catalysts with multiple atomic-level active sites, promoting the development and application of advanced membranes in water treatment.

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Navy's CFC & Halon elimination program

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NAVAL ENGINEERS JOURNAL 2000年第1期112卷 91-112页

作者： Toms, GS Breslin, DA Brunner, GP Thill, JC Gregory S. Toms RE:is the CFC & Halon Elimination Program Manager for the Naval Sea Systems Command (NAVSEA). He received a master of science degree in mechanical engineering from the University of Maryland and a B.S. degree in mechanical engineering from West Virginia University. From 1984 to 1997 he was employed at the Naval Surface Warfare Center Carderock Division Annapolis Detachment (formerly David Taylor Research Center) where he worked on the development of advanced centrifugal compressor air conditioning plants for shipboard applications. He received the Stratospheric Ozone Protection Award in 1998 from the U.S. Environmental Protection Agency in recognition of his exceptional leadership and technical achievements in eliminating ozone-depleting substances from Navy ships. He is licensed as a registered Professional Engineer in the state of Texas. David A. Breslin P.E.:is the Director of Technical Operations for the Naval Surface Warfare Center and is the Chairperson of the ASNE Committee on Environmental Engineering. He received a master of science in aerospace engineering from Virginia Tech in 1991 a master of engineering administration in industrial & systems engineering from Virginia Tech in 1991 and a bachelor of engineering in mechanical engineering from Stevens Institute of Technology in 1985. From 1993 to 1997 he was the program manager of the Naval Sea Systems Command's CFC & Halon Elimination Program. Because of his many efforts he received a Stratospheric Ozone Protection Award in 1995 from the U.S. Environmental Protection Agency in recognition of “exceptional contributions to global environmental protection”. Gregory P. Brunner:was employed by the Carderock Division of the Naval Surface Warfare Center and Naval Sea Systems Command (NAVSEA) from 1983 until 1997. From 1993 to 1997 he served as the R&D program manager for the NAVSEA CFC & Halon Elimination Program Office. Program efforts resulted in the development of new refrigerants for backfit into existing shipboard air-conditioning

The domestic production of the most powerful Ozone-Depleting Substances (ODSs) has permanently ceased and the abundant supplies of a number of inexpensive refrigerants, fire-fighting agents, and solvents, once taken for granted, are now a thing of the past. The Navy's original strategy of conserving ODSs, converting systems and processes where feasible, relying on strategic reserves where necessary, and developing "ozone-friendly" equip ment for new-design surface ships and submarines is succeeding. The purpose of this paper is to document the Navy's efforts to date relative to combating the threat to uninterrupted Fleet operations posed by the cessation of ODS production. Specifically, this paper addresses the Navy's shipboard conversion programs for air-conditioning and refrigeration (AC&R) systems, the development of next-generation AC&R systems, the selection of halon substitutes for new-construction fire-fighting systems, and the Navy's alternative to CFC-113 in the cleaning of critical oxygen systems.

关键词： conversion program Ozone depleting substances trichlorotrifluoroethane GRANTS fire fighting strategic reserves Solvents oxygen systems Submarine Halons

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Utilization of response surface methodology in optimization of de-oiled olive pomace activated biochar production 6

Utilization of response surface methodology in optimization ...

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6th environmental Technology and Management Conference, ETMC 2019

作者： Abarca, Ralf Ruffel De Luna, Mark Daniel Chakraborty, Sudip Curcio, Stefano Candamano, Sebastiano Department of Chemical Engineering and Technology Mindanao State University Iligan Institute of Technology Iligan City9200 Philippines Environmental Engineering Program University of the Philippines-Diliman Quezon City1101 Philippines Department of Chemical Engineering University of the Philippines-Diliman Quezon City1101 Philippines Laboratory of Transport Phenomena and Biotechnology Department of Computer Engineering Modeling Electronics and Systems University of Calabria Rende87036 Italy Department of Environmental and Chemical Engineering University of Calabria Rende87036 Italy

Olive activated biochar (OAB) was prepared from waste de-oiled olive pomace (sansa esausta, SE) through carbonization followed by combined KOH and thermal activation. The activation process was optimized using central composite design (CCD) with pyrolysis temperature, activation time and KOH to pyrolized SE mass ratio (KOH/PSE) as independent variables, and yield, methylene blue number (MBN) and iodine number (ID) as responses. Optimized OAB was subjected to fixed bed adsorption of 100 mg L-1 methylene blue dye. Numerical optimization resulted in optimum process setting of 362°C pyrolysis temperature, 61-min activation time and 0.81 KOH/PSE under which the optimized activated biochar produced 31% OAB, MBN of 679 and ID of 899. Thomas and Yoon-Nelson models best fit the fixed bed adsorption data implying that methylene blue adsorption conforms to Langmuir isotherm and obeys pseudo-second order reversible reaction kinetics with no axial dispersion. The theoretical adsorption capacity of OAB is 131 mg g-1 with theoretical time required for 50% sorbate breakthrough of 54.69 h. These results show the potential application of OAB in dye adsorption. © 2020 The Authors, published by EDP Sciences.

关键词： Carbonization

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engineering the environmentally sound warship for the twenty-first century

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NAVAL ENGINEERS JOURNAL 1999年第3期111卷 189-217页

作者： Markle, SP Gill, SE McGraw, PS Udr. Stephen P. Markle USN is a career Engineering Duty officer assigned to Naval Sea Systems Command Arlington Virginia where he is Deputy Directs Environmental Programs Division (SEA 03L1 B). He is responsible fm program management activities associated with all ahat environmental protection equipment design and selection of environmental protection equipment and systems fm future surface ship designs (DD 21 CVN 7Z CW LPD 17) and serves on several teams designed to promote Nay wide awarmss of environmental protection requirements and Nay programs to meet these challenges. He is a 1993 graduate of the Naval Construction and Engineering Program at the Massachusetts Institute of Technology where he received a naval engineers degree and master of science in mechanical engineering. His interest in environmental issues predates his undergraduate studies at Syracuse Universityl State University of New Ymk College of Environmental Science and Fmestry where he received a bachelm of science degree in fmest engineering from the School of Environmental and Resource Engineering. LCdx Markle has qualified as a Surface Warfare Officer and in submarines through the Engineering Duty Dolphin Program he is a member of the Acquisition Professional Community and a graduate of the Defense Systems Management College Advanced Program Managers Course. He is a professional engineer registered in the State of New York and is a member ofthe American Society of Naval Engineers National Society of Professional Engineers American Society for Testing and Materials Society of Naval Architects and Marine Engineers and Society of Automotive Engineers. Peter 5. McGraw is current the Acting Branch Head ofthe Solid Waste Management Branch (Code 634) of the Environmental Quality Dwrtment of the Naval Surfice Warfare Centel: Carderock Division. As such he is responsible for among other things: the Shipboard Advanced Incinerator RDT&E Program the Submarine Plastic Waste RDT&E Program Solid Waste Processing Equipment Design Acquisitio

The past twenty-five years has been marked by the introduction ed marine environmental regulations that have had a profound effect on how ships are designed, built and operated. Ships being designed and built today must accommodate not only current regulations but anticipate those enacted over their thirty to fifty year life cycles. U.S. Chief of Naval Operations, Office of environmental, Safety and Health (CNO N45) has articulated a vision for the environmentally Sound Warship of the Twenty-first Century. This vision incorporates the "Sense of Congress" for a naval ship designed to operate in full compliance with environmental regulations worldwide. The task of the Navy engineering team is to translate this vision into reality;a ship capable of prevailing in time of war and able to conduct operations in all areas of the globe, unencumbered by special procedures for environmental compliance. The keys to this warship design are the early integration of environmentally sound principles, materials, and processes into the ship acquisition process;minimization of both hazardous materials and generation of post shipboard consumer waste during operation;adaptation of integrated systems to reduce the volume of wastes and enhance processing efficiency;reduced manpower requirements;and crew indoctrination in environmental protection.

关键词： Ships environmental regulations engineering ARTICULATED Navy environmental security

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Selecting and applying quantification models for ecosystem services to forest ecosystems in South Korea

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Journal of Forestry Research 2016年第6期27卷 1373-1384页

作者： Hyun-Ah Choi Woo-Kyun Lee Cholho Song Nicklas Forsell Seongwoo Jeon Joon Soon Kim So Ra Kim Department of Environmental Science and Ecological Engineering Korea University Seoul 02841 Republic of Korea Ecosystems Services and Management Program International Institute for Applied Systems AnalysisSchlossplatz 1 2361 Laxenburg Austria Department of Forest Management Kangwon National University Chuncheon 24341 Republic of Korea Korea Forest Conservation Association 186 Dongjak-daeroSeocho-gu Seoul 06559 Republic of Korea

There is growing interest in using ecosystem services to aid development of management strategies that target sustainability and enhance ecosystem support to humans. Challenges remain in the search for methods and indicators that can quantify ecosystem services using metrics that are meaningful in light of their high priorities. We developed a framework to link ecosystems to human wellbeing based on a stepwise approach. We evaluated prospective models in terms of their capacity to quantify national ecosystem services of forests. The most applicable models were subsequently used to quantify ecosystem services. The Korea Forest Research Institute model sat- isfied all criteria in its first practical use. A total of 12 key ecosystem services were identified. For our case study, we quantified four ecosystem functions, viz. water storage capacity in forest soil for water storage service, reduced suspended sediment for water purification service, reduced soil erosion for landslide prevention service, and reduced sediment yield for sediment regulation service. Water storage capacity in forest soil was estimated at 2142 t/ha, and reduced suspended sediment was estimated at 608 kg/ ha. Reduced soil erosion was estimated at 77 m^3/ha, and reduced sediment yield was estimated at 285 m^3/ha. These results were similar to those reported by previous studies. Mapped results revealed hotspots of ecosystem services around protected areas that were particularly rich in bio- diversity. In addition, the proposed framework illustrated that quantification of ecosystem services could be sup- ported by the spatial flow of ecosystem services. However, our approach did not address challenges faced when quantifying connections between ecosystem indicators and actual benefits of services described.

关键词： Classification Ecosystem services Quantification Stepwise approach

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Uniform National Discharge Standards - Overview and implications for future naval engineering

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NAVAL ENGINEERS JOURNAL 1999年第3期111卷 219-235页

作者： Kopack, D Smith, G Kim, D Erne, DL David F. Kopack:is a Program Manager in the Naval Sea Systems Command Office of Environmenta1 Protection Occupational Safety and Health SEA 00T. Mr. Kopack received his bachelor and master of science degrees in the physical sciences and management from the University of Maryland. Mr. Kopack has 20 years of experience in ship design and engineering industrial facility operations and program management. Gordon D. Smith:is a Chemical Engineer with the Carderock Division Naval Surface Warfare Center in Bethesda Maryland and is working in the Naval Sea Systems Command Environmental and Auxiliary Systems Group. SEA 03L. Mr. Smith received his bachelor of science degree in chemical engineering from The Ohio State University. He has over 13 years of ronmental issues. In addition to supporting the development of Uniform National Discharge Standards he has been involved in research design testing and development of pollution abatement technologies suitable for use aboard Navy Ships. Don K. Kim:is a Senior Mechanical Engineer with the naval architecture and marine engineering firm of M. Rosenblatt & Son Inc. in Arlington Virginia. Mr. Kim received his bachelor of science and master of engineering degrees in mechanical engineering from the University of Virginia. He is a registered Professional Engineer in the Commonwealth of Virgina. Mr. Kim has ten years of experience in the design installation maintenance and repair of shipboard mechanical systems equipment and components with specific expertise in compressor pump and fan design and operation. He is a member of the American Society of Naval Engineers and the American Society of Mechanical Engineer. David L. Erne:is an Associate with Booz Allen and Hamilton Inc. in Arlington Virginia. Mr. Erne received his bachelor of science degree in chemical engineering from the University of Idaho. He has over twelve years of experience in environmental program management and consulting. In addition to his support for the Uniform National Discharge Standards prog

In the Fiscal Year 1996 National Defense Authorization Act, Congress amended the Clean Water Act to provide the Department of Defense and the environmental Protection Agency authority to jointly establish standards for incidental discharges from Armed Forces' vessels. The uniform national standards would apply to discharges from vessels of the Navy, Military Sealift Command, Army, Marine Corps, Air Force, and Coast Guard to the navigable waters and contiguous zone of the U.S. and its territories. Uniform National Discharge Standards (UNDS) will require control of discharges, by either a technology or management practice. UNDS will facilitate the Armed Forces' ability to better design and build future vessels to be environmentally sound and to maintain the operational flexibility of Armed Forces' vessels both domestically and internationally. The development of standards for Armed Forces' vessel discharges may have greater impact on naval engineering requirements for future vessels than any other single environmental issue, These standards are expected to stimulate the development of innovative vessel pollution control technologies, which on be used for both Armed Forces' vessels and commercial shipping vessels. This paper provides an overview of UNDS development, summarizes the results of UNDS Phase I, provides a summary overview of the preliminary approach for accomplishing UNDS Phase Il, and discusses implications for future naval engineering efforts.

关键词： Replenishment at sea homeland defense shipbuilding Military Personnel Uniform home range Treated water Naval engineering Uniforms Implication Clean Water Act Coastguards

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Logistics for Disaster Waste Management: A Case Study of the 2019 Oil Spill in Brazil

Logistics for Disaster Waste Management: A Case Study of the...

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International Conference on Production and Operations Management, POMS 2021

作者： Netto, Luiz Fernando Sanghikian, Alex Igor Yoshizaki, Hugo Tsugunobu Yoshida de Brito Junior, Irineu Chico Mendes Institute for Biodiversity Conservation Pirassununga Brazil Department of Production Engineering Sao Paulo State University Sao Paulo Brazil Graduate Program in Logistics Systems Engineering Sao Paulo University Sao Paulo Brazil Environmental Engineering São Paulo State University Sao Jose dos Campos Brazil

ISBN: (纸本)9783031068614

During the response and recovery phases of a disaster, an important issue is waste management, which includes generation, transportation, transfer, processing, recycling, and reuse of debris. In this paper, we analyzed the logistical process related to the management of 5400 metric tons of waste from the 2019 oil spill in Brazil, considering environmental impacts and cleaning efforts. The analyses show the quantities handled by the state governments responsible for the operation and the main destination of the residues, which was the cement industry. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Waste management

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Evaluation of a two-stage passive treatment approach for Mining Influenced Waters

Evaluation of a two-stage passive treatment approach for Min...

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24th National Meetings of the American Society of Mining and Reclamation 2007: 30 Years of SMCRA and Beyond

作者： Figueroa, L. Miller, A. Zaluski, M. Bless, D. Environmental Science and Engineering Colorado School of Mines Golden CO 80401 United States Butte MT 57901 United States Mine Waste Technology Program Sustainable Technology Division Systems Analysis Branch Cincinnati OH 45268 United States

ISBN: (纸本)9781604233285

A two-stage passive treatment approach was assessed at a bench-scale level using two Colorado Mining Influenced Waters (MIWs). The first-stage was a limestone drain with the purpose of removing iron and aluminum and mitigating the potential effects of mineral acidity. The second stage was a sulfate reducing bioreactor composed solely of 50% corn stover and 50% walnut shells by volume. The primary difference in the two MIWs was the concentration of zinc 5-7 mg/L for the National Tunnel Adit drainage (NTA) vs. 65-75 mg/L for the Silver Cycle Adit drainage (SCA). The limestone pretreatment columns reduced the zinc in the NTA MIW to 1-2 mg/L and the SCA MIW to 38 - 56 mg/L. The two SCA biocolumns had similar zinc removal but different sulfate removal with time. The sulfate reduction rate (SRR) for the SCA columns peaked at day 50 but at 0.5 mol S/m3/d for column 1 and 0.3 mol S/m3/d for column 2. Average SRR after day 50 was 0.24 and 0.13 mol S/m3/d for columns 1 and 2, respectively. The NTA columns (3 and 4) sustained an averaged SRR of 0.3 mol S/m3/d for days 30-130. The effluent zinc after startup from the two systems were

关键词： Bioreactors

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CVN 68 class solid waste flow analysis

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NAVAL ENGINEERS JOURNAL 1998年第6期110卷 73-87页

作者： Markle, SP Gill, SE LCdr. Stephen P. Markely USN:is a career Engineering Duty Oficer assigned to Naval Sea Systems Command Arlington VA where he is Deputy Directol Environmental Protection Systems Division (SEA 03 LIB). He is responsible for Program Management activities associated with all afloat environmental protection equipment and serves on several teams designed to promote Navy wide awareraess of environmental protection requirements and Navy programs to meet these challenges. He is a 1993 graduate of the Naval Construction and Engineering Program at the Massachusetts Institute of Zchmlogy where he received a Naval Engineering Degree and Master of Science in Mechanical Engineering. His interest in environmental issues predates his undergraduate studies at Syracuse UniversitylState University of New York College of Environmental Science and Forestw where he received a Bachelm of Science degree in Forrest Engineering from the School of Environmental and Resource Engineeriw. LCdr Markle has qualified as a Surface Warfare Oficer and in submarines through Engineering Duty Dolphin Program. He is a Professional Engineer registered in the State of New York and is a member ofASNE NSPE ASTM SNAME and SAE. Sean G. Gill:is a Senior Engineer with GEO-CENTERS incorporated in Pittsburgh PA where he provides technical and administrative support to the Naval Sea Systems Command (SEA 03L1) and the Carderock Division of the Naval Surfme Waflare Center (Code a) principal& on the shipboard and submarine solid waste management programs. Prior to joining GEO-CENTERS incorporated in 1996 he worked for eleven years at the Carderock Division of the Naval Surfme Warfare Center as a project engineer and a Branch Head. In the former capacity Mr Gill participated in various blackwatel gray watel and oily wastewater treatment projects oversaw the development of the Navy Pulper and was Center's technical team leader for the NAVSEA Solid Waste management program. In 1994 he was assigned to be Branch Head of Code 634 the Solid Waste Management

Through a detailed Research and Development program, the U.S. Navy has developed a suite of shipboard solid waste management equipment enabling compliance with federal and international law. Four major equipment types have been developed to outfit twenty-seven classes of naval surface ships. The major equipment types are: Plastic Waste Processor (PWP), Metal/Glass Shredder (MGS), Large Pulper (LP), and Small Pulper (SP). The Navy is aggressively procuring and installing this equipment aboard all ships of FFG 7 Class and larger. A deadline of December 31, 2000 has been set for completion. engineering analysis and held waste generation studies were conducted to select the specific equipment suite and develop alteration documentation for each ship class. Specific factors in this process were: solid waste generation rates, equipment reliability analysis, ship arrangement considerations, daily equipment operation Limits, and shipboard quality of life issues. A solid waste management study was conducted in the fall of 1997 to validate Navy equipment and ship design parameters onboard the USS John C. Stennis (CVN 74). Generation rates for shipboard solid waste were determined for plastic, metal and glass, food, paper, cardboard, fabric and wood. engineering analysis of data allowed a decrease in CVN 68 Class design waste generation rates. engineering analysis enabled a reduction in the number of PWPs and MGSs required, and fewer spaces for efficient operation. Ship arrangement studies were conducted to optimize efficiency and equipment mix of Solid Waste Processing Rooms (SWPRs) relative to waste generation sites. This paper briefly articulates the process followed by the Navy in responding to regulations governing solid waste management in the marine environment. Evidence validating the engineering procedures followed is presented.

关键词： Ship equipment

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Aerobic treatment of liquid swine manure using polymer: Evaluation for ammonia emissions reduction and nitrogen retention

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engineering in Agriculture, Environment and Food 2016年第3期9卷 257-263页

作者： Kafle, Gopi Krishna Chen, Lide Glaze, Benton Tindall, Terry Yadanaparthi, Sai Krishna Reddy Biological Systems Engineering Washington State University PullmanWA99164 United States Department of Biological and Agricultural Engineering University of Idaho MoscowID83844 United States Department of Animal and Veterinary Science University of Idaho MoscowID83844 United States J.R. Simplot Company BoiseID83702 United States Environmental Science Program University of Idaho MoscowID83844 United States

In the present study, the effectiveness of polymer (maleic-itaconic acid) on ammonia (NH3) emissions reduction and in retaining nitrogen (N) in fresh liquid swine manure (SM) was evaluated. The relationship between pH and NH3 emission was also determined. Different doses of polymer (namely Treatment 1 = T1 = 0.8 L polymer/ton of manure, Treatment 2 = T2 = 1.6 L polymer/ton of manure, Treatment 3 = T3 = 2.4 L polymer/ton of manure, and Treatment 4 = T4 = 3.2 L polymer/ton of manure) were added to the SM and its effects were observed for 30 d. The tests results showed significant reduction in pH for T1, T2, T3 and T4 compared to control (C). For the short term (up to 3d) T2, T3, and T4 showed significantly lower NH3 gas concentrations than C, however, for the long term (up to 10–20 d) only T4 continued to indicate significantly lower NH3 gas concentrations. Although numeric observations were reported for other treatments (T1, T2 and T3), no significant differences in NH3 gas concentrations were found. The NH3 emissions reductions were calculated in the range of 81–92%, 31–88%, −39–61%, 6–41%, −106% to −6% for the treatment period of 1, 3, 10, 20 and 30 d, respectively. The addition of polymer resulted in no significant difference in total ammonia nitrogen (TAN) and NO3−–N concentration. However, the addition of polymer had a significant influence on total Kjehldahl nitrogen (TKN) and soluble chemical oxygen demand (SCOD) concentration. The NH3 gas emissions strongly correlated with the manure pH (R2 = 0.911–0.999). © 2016 Asian Agricultural and Biological engineering Association

关键词： Manures

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