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Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

《环境科学与工程前沿(英文)》 2023年 第17卷 第11期 doi: 10.1007/s11783-023-1736-7

摘要:

● The PCDD/F distribution patterns of the FW-AD process were investigated.

关键词: Biological treatment     MSW classification     Mass balance     Solid digestate    

Effects of oxidizing environment on digestate humification and identification of substances governing

《环境科学与工程前沿(英文)》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1520-0

摘要:

• Liquid digestate humification was investigated under different oxidizing environment.

关键词: Liquid digestate     MnO2     Oxygen     DOM transformation     Humic-like acids    

DEGRADATION OF ORGANIC POLLUTANTS IN FLOCCULATED LIQUID DIGESTATE USING PHOTOCATALYTIC TITANATE NANOFIBERS

《农业科学与工程前沿(英文)》 2023年 第10卷 第3期   页码 492-502 doi: 10.15302/J-FASE-2023503

摘要:

● Titanate NFs were synthesized and photodegraded liquid digestate for the first time.

关键词: titanate nanofibers     photocatalysis     poultry litter liquid digestate    

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

《农业科学与工程前沿(英文)》 2023年 第10卷 第3期   页码 479-491 doi: 10.15302/J-FASE-2023480

摘要:

● LFD was treated by fly ash-based chemical precipitation and CO2 mineralization.

关键词: anaerobic digestion     chemical oxygen demand     fly ash     ion removal     total phosphate    

Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis

《能源前沿(英文)》 doi: 10.1007/s11708-023-0901-9

摘要: Interconnector is a critical component to construct solid oxide cells (SOCs) stack. Oxidation of metallic interconnectors and Cr poisoning caused by oxidation are important factors that lead to long-term performance degradation of SOCs. Coating on the interconnector surface is an important approach to inhibit the oxidation and Cr migration of the interconnector. Herein, (La0.75Sr0.25)0.95MnO3–δ (LSM) and Mn1.5Co1.5O4 (MCO) are used to fabricate the coatings of interconnector. Two advanced thermal spray technology, atmospheric plasma spraying (APS) and low-pressure plasma spray (LPPS), are adopted for the coating preparation. The electrochemical performance, rising and cooling cycle stability, and Cr diffusion inhibition performance of the coatings are tested and evaluated. The result indicates that MCO can generate more uniform and denser coatings than LSM. In addition, MCO coatings prepared by LPPS shows the best electrochemical performance, rising and cooling cycle stability, and Cr diffusion inhibition. The initial area specific resistance (ASR) is 0.0027 Ω·cm2 at 800 °C. After 4 cooling cycle tests, the ASR increases to 0.0032 Ω·cm2 but lower than other samples. Meanwhile, the relative intense of Cr at the interface of SUS430 with MCO coatings fabricated by LPPS is lower than that of MCO fabricated by APS after 4 rising and cooling cycle operations, showing more favorable Cr diffusion inhibition performance.

关键词: interconnector coating     plasma spray     electrochemical performance     Cr diffusion inhibition     solid oxide cells (SOCs)    

Minimal residual disease in solid tumors: an overview

《医学前沿(英文)》 2023年 第17卷 第4期   页码 649-674 doi: 10.1007/s11684-023-1018-6

摘要: Minimal residual disease (MRD) is termed as the small numbers of remnant tumor cells in a subset of patients with tumors. Liquid biopsy is increasingly used for the detection of MRD, illustrating the potential of MRD detection to provide more accurate management for cancer patients. As new techniques and algorithms have enhanced the performance of MRD detection, the approach is becoming more widely and routinely used to predict the prognosis and monitor the relapse of cancer patients. In fact, MRD detection has been shown to achieve better performance than imaging methods. On this basis, rigorous investigation of MRD detection as an integral method for guiding clinical treatment has made important advances. This review summarizes the development of MRD biomarkers, techniques, and strategies for the detection of cancer, and emphasizes the application of MRD detection in solid tumors, particularly for the guidance of clinical treatment.

关键词: MRD     solid tumor     CTC     ctDNA    

ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION OF POULTRY LITTER WITH WHEAT STRAW

《农业科学与工程前沿(英文)》 2023年 第10卷 第3期   页码 424-436 doi: 10.15302/J-FASE-2023506

摘要:

● Integration of alkaline pretreatment and air mixing for co-digestion was validated.

关键词: sodium hydroxide     air injection     cumulative methane yield     kinetic modeling analysis     digestate    

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

《环境科学与工程前沿(英文)》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1364-4

摘要:

• High-solid anaerobic digestion (HS-AD) of sewage sludge (SS) is overviewed.

关键词: High-solid effect     Anaerobic fermentation     Methane production     Biodegradability     Sludge treatment    

Review of SO42-/MxOy solid superacid catalysts

Yanni WU, Shijun LIAO

《化学科学与工程前沿(英文)》 2009年 第3卷 第3期   页码 330-343 doi: 10.1007/s11705-009-0208-3

摘要: Some metal oxides modified with sulfate ions form highly acidic or superacidic catalysts. solid superacid catalysts, play a vital role in more and more fields such as organic synthesis, fine chemicals, pharmaceuticals, and means for strengthening environmental safeguards. This review highlights the recent development of solid superacid catalysts based on , including synthesis method, characterization of acid sites and acid strength, and applications.

关键词: solid superacid catalyst     synthesis method     characterization     applications    

Repercussions of COVID-19 pandemic on solid waste generation and management strategies

《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1407-5

摘要:

• Implication of COVID-19 on medical waste and MSW generation is studied.

关键词: COVID-19     Medical waste     Personal protective equipment     Municipal solid waste     Waste management    

Municipal solid waste management in Dalian: practices and challenges

Xinbei WANG, Yong GENG

《环境科学与工程前沿(英文)》 2012年 第6卷 第4期   页码 540-548 doi: 10.1007/s11783-011-0361-z

摘要: The fast growing of urban areas in developing countries has brought serious problems on municipal solid waste (MSW) management. It will be rational to adopt an integrated approach to deal with such a challenge so that the overall eco-efficiency of MSW management could be improved. To better examine how attributes of integrated MSW management are being interpreted and put into practice, and to explore what changes should be made to improve the application of integrated MSW management, we employ a case study method so that lessons learned could be used to inform initiatives in other cities and the potential solution may offer feasible strategies. The case study city is Dalian, a typical seaport city with fast growing rate in economy. The outcomes of this case study show us that fragmented management structure, ineffective and inefficient enforcement of relevant regulations, backward technologies, limited financial resources and lack of public participation are main barriers for the implementation of integrated MSW management. Consequently, in order to overcome these barriers, we propose an integrated management framework on MSW management, aiming to maximize the overall eco-efficiency of MSW management.

关键词: municipal solid waste (MSW) management     3R principles     challenges     eco-efficiency     effective and efficient enforcement    

Lagrangian simulation of deposition of CO gas-solid sudden expansion flow

HUANG Dongping, DING Guoliang, QUACK Hans

《能源前沿(英文)》 2008年 第2卷 第2期   页码 216-221 doi: 10.1007/s11708-008-0032-3

摘要: Freezing and blockage resulting from the deposition of solid CO formed because of sudden expansion of the downstream pipe during the release of CO through safety valves, will endanger the protected equipment. To overcome this problem, the characteristics of the CO gas-solid sudden expansion flow are studied by using the disperse Lagrangian model. A comparison of the calculated deposition of the solid CO with the experimental results shows that they are in reasonable agreement. The simulation results show that the size of the solid CO formed should not be in the range of 0.04–0.07 mm ( number 3.2–9.8). This can be achieved by using an appropriate flow cross section of the safety valve.

关键词: comparison     gas-solid     downstream     blockage     Lagrangian    

Development and prospects of municipal solid waste (MSW) incineration in China

NIE Yongfeng

《环境科学与工程前沿(英文)》 2008年 第2卷 第1期   页码 1-7 doi: 10.1007/s11783-008-0028-6

摘要: With the lack of space for new landfills, municipal solid waste (MSW) incineration is playing an increasingly important role in municipal solid waste management in China. The literatures on certain aspects of incineration plants in China are reviewed in this paper, including the development and status of the application of MSW incineration technologies, the treatment of leachate from stored MSW, air pollution control technologies, and the status of the fly-ash control method. Energy policy and its promotion of MSW-to-energy conversion are also elucidated.

关键词: development     management     municipal     MSW     incineration    

Surface molecularly imprinted polymers for solid-phase extraction of (--)-epigallocatechin gallate from

Yunling Gao,Ying Hu,Kejian Yao

《化学科学与工程前沿(英文)》 2015年 第9卷 第4期   页码 467-478 doi: 10.1007/s11705-015-1526-2

摘要: Surface molecularly imprinted polymers (SMIPs) have been synthesized to selectively determine (−)-epigallocatechin gallate in aqueous media. SMIPs were prepared using a surface grafting copolymerization method on a functionalized silica gel modified with -cyclodextrin and vinyl groups. The morphology and composition of the SMIPs were investigated by scanning electron microscopy, Fourier transform-infrared spectroscopy and thermogravimetric analysis. In addition, the molecular binding capacity, recognition properties and selectivity of the SMIPs were evaluated. The imprinted polymers were found to have a highly specific recognition and binding capacity for (−)-epigallocatechin gallate in aqueous media which is the result of the hydrophobic properties of the -cyclodextrin and the hydrogen-bonding interactions of methacrylic acid. The SMIPs were successfully employed as solid-phase extraction adsorbents prior to the HPLC determination of (−)-epigallocatechin gallate in toothpaste. The HPLC analysis had a linear dynamic range of 0.5–50.0 µg?mL with a correlation coefficient of 0.9998 and the recoveries ranged from 89.4% to 97.0% with relative standard deviations less than 4.8%. The limit of detection and limit of quantification were 0.17 and 0.33 µg?mL , respectively. The method provides a promising approach for the preparation of selective materials for the purification and determination of complex samples.

关键词: β-cyclodextrin     (−)-epigallocatechin gallate     surface molecular imprinting     solid-phase extraction    

Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media

Cyrine Ayed, Wei Huang, Kai A. I. Zhang

《化学科学与工程前沿(英文)》 2020年 第14卷 第3期   页码 397-404 doi: 10.1007/s11705-019-1884-2

摘要: Covalent triazine frameworks (CTFs) have been recently employed for visible light-driven photocatalysis due to their unique optical and electronic properties. However, the usually highly hydrophobic nature of CTFs, which originates from their overall aromatic backbone, leads to limitations of CTFs for applications in aqueous media. In this study, we aim to extend the range of the application media of CTFs and design hybrid material of a CTF and mesoporous silica (SBA-15) for efficient photocatalysis in aqueous medium. A thiophene-containing CTF was directly synthesized in mesopores of SBA-15. Due to the high surface area and the added hydrophilic properties by silica, the hybrid material demonstrated excellent adsorption of organic molecules in water. This leads not only to high photocatalytic performance of the hybrid material for the degradation of organic dyes in water, but also for efficient photocatalysis in solvent-free and solid state. Furthermore, the reusability, stability and easy recovery of the hybrid material offers promising metal-free heterogeneous photocatalyst for broader applications in different reaction media.

关键词: photocatalysis     covalent triazine framework     aqueous medium     SBA-15     solid state    

标题 作者 时间 类型 操作

Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

期刊论文

Effects of oxidizing environment on digestate humification and identification of substances governing

期刊论文

DEGRADATION OF ORGANIC POLLUTANTS IN FLOCCULATED LIQUID DIGESTATE USING PHOTOCATALYTIC TITANATE NANOFIBERS

期刊论文

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

期刊论文

Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis

期刊论文

Minimal residual disease in solid tumors: an overview

期刊论文

ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION OF POULTRY LITTER WITH WHEAT STRAW

期刊论文

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

期刊论文

Review of SO42-/MxOy solid superacid catalysts

Yanni WU, Shijun LIAO

期刊论文

Repercussions of COVID-19 pandemic on solid waste generation and management strategies

期刊论文

Municipal solid waste management in Dalian: practices and challenges

Xinbei WANG, Yong GENG

期刊论文

Lagrangian simulation of deposition of CO gas-solid sudden expansion flow

HUANG Dongping, DING Guoliang, QUACK Hans

期刊论文

Development and prospects of municipal solid waste (MSW) incineration in China

NIE Yongfeng

期刊论文

Surface molecularly imprinted polymers for solid-phase extraction of (--)-epigallocatechin gallate from

Yunling Gao,Ying Hu,Kejian Yao

期刊论文

Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media

Cyrine Ayed, Wei Huang, Kai A. I. Zhang

期刊论文