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Deciphering the effect of sodium dodecylbenzene sulfonate on up-flow anaerobic sludge blanket treatment of synthetic sulfate-containing wastewater

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1385-z

Abstract:

• UASB reactor can work efficiently with high COD/SO4

Keywords： Up-flow anaerobic sludge blanket     Organic sulfur     Sodium dodecylbenzene sulfonate     COD/SO4    

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Effect of different acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1399-1411 doi: 10.1007/s11705-023-2345-5

Abstract: Three kinds of Ce-based catalysts (CePO4, CeVO4, Ce2(SO4)> Ce2(SO4)3, which is in agreement with their abilities of NH343–, VO43– and SO42–SO2, and the upward trend about 8% was detected due to the sulfation enhancement by SO2 for Ce2(SO4)3.

Keywords： CePO4     CeVO4     Ce2(SO4)3     selective catalytic reduction    

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Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 38-46 doi: 10.1007/s11705-011-1167-z

Abstract: Two types of regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employedcatalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated by dilute H SO

Keywords： sub>O5-WO3/TiO2 catalysts     thermal deactivation     regeneration     NH4Cl     dilute H2SO4 solution    

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Review of SO42-/MxOy solid superacid catalysts

Yanni WU, Shijun LIAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 330-343 doi: 10.1007/s11705-009-0208-3

Abstract: 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.

Keywords： solid superacid catalyst     synthesis method     characterization     applications    

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Nitrate removal to its fate in wetland mesocosm filled with sponge iron: Impact of influent COD/N ratio

Zhihao Si, Xinshan Song, Xin Cao, Yuhui Wang, Yifei Wang, Yufeng Zhao, Xiaoyan Ge, Awet Arefe Tesfahunegn

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1183-7

Abstract: CW-Fe allowed a high-performance of NO3‒-N removal at the COD/N ratio of 0.Higher COD/N resulted in lower chem-denitrification and higher bio-denitrification.NH4+-N was mainly produced by chemical denitrification, and approximately 50% of the NO3‒-N was reducedto NH4+-N, at the COD/ratio of 0.Although chemical denitrification mediated by s-Fe0 led to an accumulation of NH4+-N at COD/N ratios

Keywords： Sponge iron     Wetland mesocosm     Electronic donor     Denitrification     COD/N ratio    

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microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane production and COD

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0856-8

Abstract: Methane yield and COD removal were enhanced by bioaugmentation of microflora B83.To enhance anaerobic wastewater treatment process for methane production and COD removal, a syntrophicWith the same inoculation dosage of the microflora B83, COD removal in organic wastewater treatment processwas improved from 75.6% to 86.6%, while the specific methane production by COD removal was increased

Keywords： Anaerobic wastewater treatment     Methane production     Hydrogen-producing acetogenesis     Methanogenesis     Rate-limiting step     Bioaugmentation    

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mechanisms of key functional microorganisms in the partial denitrification-anammox process induced by COD

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1703-3

Abstract:

● The availability of PD-anammox was investigated with higher NO3––N concentration.

Keywords： PD-anammox process     Nitrite accumulation     COD     Microbial interaction    

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Performance and mechanism of carbamazepine removal by FeS-SO process: experimental investigation and

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1713-1

Abstract:

● Synergistic removal of carbamazepine (CBZ) was obtained in the FeS-S2O82– process.

Keywords： FeS     S2O82–     Carbamazepine     DFT calculations     Degradation routes    

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Characterization of CANON reactor performance and microbial community shifts with elevated COD/N ratios

Yao Zhang, Yayi Wang, Yuan Yan, Haicheng Han, Min Wu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1095-6

Abstract:

COD/N at low ratios (0–0.82) improved N removals of CANON.

CANON performance decreased after COD/N up tolistitem>

The relative abundance of AOB decreased continuously with increasing COD

AOB outcompeted at a high COD load led to CANON>

The relative abundance of AnAOB decreased and increased with increasing COD

Keywords： CANON process     COD/N ratio     Anammox     Ammonia oxidizing bacteria     Aerobic heterotrophic bacteria    

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A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 629-641 doi: 10.1007/s11709-017-0447-1

Abstract: A new fracture criterion based on the crack opening displacement for peridynamic (PD) and dual-horizon peridynamics (DH-PD) is proposed. When the relative deformation of the PD bond between the particles reaches the critical crack tip opening displacement of the fracture mechanics, we assume that the bond force vanishes. A new damage rule similar to the local damage rule in conventional PD is introduced to simulate fracture. The new formulation is developed for a linear elastic solid though the extension to nonlinear materials is straightforward. The performance of the new fracture criterion is demonstrated by four examples, i.e. a bilateral crack problem, double parallel crack, monoclinic crack and the double inclined crack. The results are compared to experimental data and the results obtained by other computational methods.

Keywords： Castigliano’s theorem     breaking energy     critical extension     XFEM     COD     PD-COD    

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Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1453-z

Abstract:

• ZnO-NP disrupted metabolic/catabolic balance of bacteria by affecting DHA activity.

Keywords： Granular sludge     Biotoxicity     Reactive oxygen species     Extracellular polymeric substances    

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What have we known so far for fluorescence staining and quantification of microplastics: A tutorial review

Shengdong Liu, Enxiang Shang , Jingnan Liu , Yining Wang , Nanthi Bolan , M.B. Kirkham , Yang Li

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 8-8 doi: 10.1007/s11783-021-1442-2

Abstract: Understanding the fate and toxicity of microplastics (MPs,<5 mm plastic particles) is limited by quantification methods. This paper summarizes the methods in use and presents new ones. First, sampling and pretreatment processes of MPs, including sample collection, digestion, density separation, and quality control are reviewed. Then the promising and convenient staining procedures and quantification methods for MPs using fluorescence dyes are reviewed. The factors that influence the staining of MPs, including their physicochemical properties, are summarized to provide an optimal operation procedure. In general, the digestion step is crucial to eliminate natural organic matter (NOM) to avoid interference in quantification. Chloroform was reported to be the most appropriate solvent, and 10–20 μg/mL are recommended as optimal dye concentrations. In addition, a heating and cooling procedure is recommended to maintain the fluorescence intensity of MPs for two months. After staining, a fluorescence microscope is usually used to characterize the morphology, mass, or number of MPs, but compositional analysis cannot be determined with it. These fluorescence staining methods have been implemented to study MP abundance, transport, and toxicity and have been combined with other chemical characterization techniques, such as Fourier transform infrared spectroscopy and Raman spectroscopy. More studies are needed to focus on the synthesis of novel dyes to avoid NOM’s interference. They need to be combined with other spectroscopic techniques to characterize plastic composition and to develop image-analysis methods. The stability of stained MPs needs to be improved.
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Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 784-791 doi: 10.1007/s11783-013-0590-4

Abstract: Renewable algae biomass, was used as substrate for generating electricity in two chamber microbial fuel cells (MFCs). From polarization test, maximum power density with pretreated algal biomass was 102 mW·m (951 mW·m ) at current generation of 276 mA·m . The individual electrode potential as a function of current generation suggested that anodic oxidation process of algae substrate had limitation for high current generation in MFC. Total chemical oxygen demand (TCOD) reduction of 74% was obtained when initial TCOD concentration was 534 mg·L for 150 h of operation. The main organic compounds of algae oriented biomass were lactate and acetate, which were mainly used for electricity generation. Other by-products such as propionate and butyrate were formed at a negligible amount. Electrochemical Impedance Spectroscopy (EIS) analysis pinpointed the charge transfer resistance (112 ?) of anode electrode, and the exchange current density of anode electrode was 1214 nA·cm .

Keywords： microbial fuel cell (MFC)     algae     bioelectricity     substrate     volatile fatty acid     biomass     COD removal efficiency    

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Visbreaking of heavy petroleum oil catalyzed by SO/ZrO solid super-acid doped with Ni or Sn

JING Ping, LI Qingbiao, HAN Mei, SUN Daohua, JIA Lishan, FANG Weiping

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 186-190 doi: 10.1007/s11705-008-0035-y

Abstract: SO/ZrO solid super-acid catalysts (SZ) doped with Ni or Sn (Ni/SZ, Sn/SZ) were prepared for catalyticThe visbreaking reactions were carried out at 240°C and 3–4 MPa for 24 h using a heavy petroleum oil

Keywords： thermolysis     Shengli     asphaltene     SO/ZrO     presence    

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Industrial Application of a Deep Purification Technology for Flue Gas Involving Phase-Transition Agglomeration and Dehumidification Article

Jianmin Liu, Fahua Zhu, Xiuyuan Ma

Engineering 2018, Volume 4, Issue 3,   Pages 416-420 doi: 10.1016/j.eng.2018.05.009

Abstract: In addition, sulfur trioxide (SO3), water with dissolved salts, and particles in the wet flueshow that the average amount of recycled water obtained from wet flue gas by means of PAD is more than 4use of this process, the ion concentration in droplets of flue gas is decreased by more than 65%, the SO

Keywords： Moist plume     Phase-transition agglomeration     Dehumidification     Dissolved salts     SO3     Particulate    

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Title Author Date Type Operation

Deciphering the effect of sodium dodecylbenzene sulfonate on up-flow anaerobic sludge blanket treatment of synthetic sulfate-containing wastewater

Journal Article

Effect of different acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3

Journal Article

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Journal Article

Review of SO42-/MxOy solid superacid catalysts

Yanni WU, Shijun LIAO

Journal Article

Nitrate removal to its fate in wetland mesocosm filled with sponge iron: Impact of influent COD/N ratio

Zhihao Si, Xinshan Song, Xin Cao, Yuhui Wang, Yifei Wang, Yufeng Zhao, Xiaoyan Ge, Awet Arefe Tesfahunegn

Journal Article

microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane production and COD

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Journal Article

mechanisms of key functional microorganisms in the partial denitrification-anammox process induced by COD

Journal Article

Performance and mechanism of carbamazepine removal by FeS-SO process: experimental investigation and

Journal Article

Characterization of CANON reactor performance and microbial community shifts with elevated COD/N ratios

Yao Zhang, Yayi Wang, Yuan Yan, Haicheng Han, Min Wu

Journal Article

A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Journal Article

Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD

Journal Article

What have we known so far for fluorescence staining and quantification of microplastics: A tutorial review

Shengdong Liu, Enxiang Shang , Jingnan Liu , Yining Wang , Nanthi Bolan , M.B. Kirkham , Yang Li

Journal Article

Microalgae

Sanath KONDAVEETI,Kwang Soon CHOI,Ramesh KAKARLA,Booki MIN

Journal Article

Visbreaking of heavy petroleum oil catalyzed by SO/ZrO solid super-acid doped with Ni or Sn

JING Ping, LI Qingbiao, HAN Mei, SUN Daohua, JIA Lishan, FANG Weiping

Journal Article

Industrial Application of a Deep Purification Technology for Flue Gas Involving Phase-Transition Agglomeration and Dehumidification

Jianmin Liu, Fahua Zhu, Xiuyuan Ma

Journal Article