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Enhanced dewatering characteristics of waste activated sludge with Fenton pretreatment: effectiveness

Guangyin ZHEN, Xueqin LU, Baoying WANG, Youcai ZHAO, Xiaoli CHAI, Dongjie NIU, Tiantao ZHAO

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 267-276 doi: 10.1007/s11783-013-0530-3

Abstract: In this work, the enhanced dewaterabing characteristics of waste activated sludge using Fenton pretreatmentThe results indicate that Fenton pretreatment is an effective technique for advanced waste activated

Keywords： Fenton pretreatment     response surface methodology (RSM)     capillary suction time (CST)     dewaterabilty     molecular    

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Biological pretreatment of corn stover by solid state fermentation of

Jian ZHANG, Xin REN, Wenqun CHEN, Jie BAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 146-151 doi: 10.1007/s11705-012-1220-6

Abstract: Biological pretreatment is a promising way to overcome the biorecalcitrance of cleaving the supermolecularfermentation of corn stover with the white-rot fungus was carried out and the efficiency of this pretreatmentdetermine the optimal timing and to understand the lignin structure and degradation mechanism in biological pretreatment

Keywords： biological pretreatment     Phanerochaete chrysosporium     solid state fermentation     biorecalcitrance    

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Pretreatment method of lignocellulosic materials for bioethanol production

Jin Shengying and Zhang Li’an

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 82-88

Abstract:

The principle and practice of main pretreatment methods were reviewedstarting with an introduction of the necessary of pretreatment of lignocellulosic materials.In the end, the authors brought forward some suggestions for the development of pretreatment techniques

Keywords： lignocellulosic materials     bioethanol     pretreatment method    

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Thermochemical pretreatment of meat and bone meal and its effect on methane production

Guangxue WU , Zhenhu HU , Mark G. HEALY , Xinmin ZHAN ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 300-306 doi: 10.1007/s11783-009-0031-6

Abstract: prerequisite in many MBM disposal approaches, enhancement of the solubilization by means of thermochemical pretreatment

Keywords： thermochemical pretreatment     meat and bone meal     solid reduction     solid solubilization     methane production    

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bioethanol production from sugarcane bagasse: combination of liquid hot water and deep eutectic solvent pretreatment

Frontiers of Chemical Science and Engineering doi: 10.1007/s11705-024-2438-9

Abstract: In the present study, a sustainable pretreatment methodology combining liquid hot water and deep eutecticThe application of this combined pretreatment strategy to sugarcane bagasse led to notable enhancementsExperiment results demonstrate that liquid hot water-deep eutectic solvent pretreatment yielded 85.05These findings confirm the effectiveness of liquid hot water-deep eutectic solvent pretreatment in separatinglignocellulosic components, thus presenting a sustainable and promising pretreatment method for maximizing

Keywords： sugar cane bagasse     synergistic pretreatment     enzymatic saccharification     ethanol    

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Life cycle assessment of homogeneous Fenton process as pretreatment for refractory pharmaceutical wastewater

Frontiers of Chemical Science and Engineering 2024, Volume 18, Issue 5, doi: 10.1007/s11705-024-2408-2

Abstract: The applicability of the life cycle assessment (LCA) to the Fenton process should be considered not only at the laboratory-scale but also at the full-scale. In this study, the LCA process was applied to evaluate the homogeneous Fenton process for the treatment of high salinity pharmaceutical wastewater. The potential environmental impacts were calculated using Simapro software implementing the CML 2001 methodology with normalization factors of 1995 world. Foreground data obtained directly from the full-scale wastewater treatment plant and laboratory were used to conduct a life cycle inventory analysis, ensuring highly accurate results. By normalized results, the Fenton process reveals sensitive indicators, primarily toxicity indicators (human toxicity, freshwater aquatic toxicity, and marine aquatic toxicity), as well as acidification and eutrophication impacts, contributed by hydrogen peroxide and iron sludge incineration, respectively. Overall, hydrogen peroxide and iron sludge incineration contribute significantly, accounting for at least 78% of these indicators. In sludge treatment phase, treatment of iron mud and infrastructure of hazardous waste incineration plants were the key contributors of environmental impacts, adding up to more than 95%. This study suggests the need to develop efficient oxidation processes and effective iron sludge treatment methods to reduce resource utilization and improve environmental benefits.

Keywords： advanced oxidation processes     full-scale     life cycle assessment     Fenton process     pharmaceutical high-salinity wastewater    

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Effect of thermal pretreatment on the surface structure of PtSn/SiO

Guozhen Xu, Jian Zhang, Shengping Wang, Yujun Zhao, Xinbin Ma

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 417-424 doi: 10.1007/s11705-016-1583-1

Abstract: The effect of thermal pretreatment on the active sites and catalytic performances of PtSn/SiO catalystMeanwhile, with the increment of thermal pretreatment temperature, Pt dispersion showed a decreasingSimultaneously, the amount of Lewis acid sites was remarkably influenced by such thermal pretreatment

Keywords： thermal pretreatment     acetic acid     hydrogenation     ethanol     PtSn/SiO2    

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Optimization of microwave pretreatment of lignocellulosic waste for enhancing methane production: Hyacinth

Bai-Hang Zhao, Jie Chen, Han-Qing Yu, Zhen-Hu Hu, Zheng-Bo Yue, Jun Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0965-z

Abstract: The effect of microwave pretreatment on the anaerobic degradation of hyacinth was investigated usingThe components of lignin and the other constituents of hyacinth were altered by microwave pretreatmentrevealed that no new compounds were generated during hyacinth pretreatment by microwave irradiation.A maximum methane yield of 221 mL·g-sub was obtained under the optimum pretreatment conditions (substrateconcentration (PSC) = 20.1 g·L and pretreatment time (PT) = 14.6 min) using RSM analysis.

Keywords： Microwave pretreatment     Response surface methodology     Methane production     Hyacinth     Anaerobic digestion    

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Modified pretreatment method for total microbial DNA extraction from contaminated river sediment

Yun FANG,Meiying XU,Xingjuan CHEN,Guoping SUN,Jun GUO,Weimin WU,Xueduan LIU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 444-452 doi: 10.1007/s11783-014-0679-4

Abstract: Based on previously published methods for soil and sediment samples, a modified pretreatment method wasThe pretreatment procedure involves washing the river sediment sample for three times with a solutionWe compared the results of standard procedure DNA extraction following pretreatment, without pretreatmentThe results indicated that the pretreatment significantly improved the DNA quality based on DNA yieldThe pretreatment method worked well even with a small amount of sediment sample (0.25 g or even lower

Keywords： river sediment     DNA extraction     contaminant     pretreatment     microbial community    

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Development of pretreatment protocol for DNA extraction from biofilm attached to biologic activated carbon

Shuting ZHANG, Bo WEI, Xin YU, Bing LIU, Zhuoying WU, Li GU

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 459-465 doi: 10.1007/s11783-010-0249-3

Abstract: The biologic activated carbon (BAC) process is widely used in drinking water treatments. A comprehensive molecular analysis of the microbial community structure provides very helpful data to improve the reactor performance. However, the bottleneck of deoxyribonucleic acid (DNA) extraction from BAC attached biofilm has to be solved since the conventional procedure was unsuccessful due to firm biomass attachment and adsorption capacity of the BAC granules. In this study, five pretreatments were compared, and adding skim milk followed by ultrasonic vibration was proven to be the optimal choice. This protocol was further tested using the vertical BAC samples from the full-scale biofilter of Pinghu Water Plant. The results showed the DNA yielded a range of 40 μg·g BAC (dry weight) to over 100 μg·g BAC (dry weight), which were consistent with the biomass distribution. All results suggested that the final protocol could produce qualified genomic DNA as a template from the BAC filter for downstream molecular biology researches.

Keywords： bacterial DNA extraction     biological activated carbon (BAC)     biofilm     water treatment     pretreatment protocol    

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Ozonation as an efficient pretreatment method to alleviate reverse osmosis membrane fouling caused by

Xuehao Zhao, Yinhu Wu, Xue Zhang, Xin Tong, Tong Yu, Yunhong Wang, Nozomu Ikuno, Kazuki Ishii, Hongying Hu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1139-y

Abstract:

Humic acids (HA) didn’t cause obvious reverse osmosis (RO) membrane fouling in 45 h.

Osmotic pressure (NaCl) affected slightly the RO membrane fouling behavior of HA.

Ca2+ promoted aggregation of HA molecules and thus aggravated RO membrane fouling.

Ozonation eliminated the effect of Ca2+ on the RO membrane fouling behavior of HA.

The change of the structure of HA was related to its membrane fouling behavior.

Keywords： Reverse osmosis     Membrane fouling     Humic acid     Ca2+     Ozone    

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A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1472-9

Abstract:

• A spectral machine learning approach is proposed for predicting mixed antibiotic.

Keywords： Antibiotic contamination     Spectral detection     Machine learning    

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Optimization of the O/HO process with response surface methodology for pretreatment of mother liquor

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1371-5

Abstract:

• Real ML-GFW with high salinity and high organics was degraded by O3/H2O2 process.

Keywords： High salinity     High organic matters     Gas field wastewater     O3/H2O2     Response surface methodology    

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Facile strategy for carbon foam fabrication with lignin as sole feedstock and its applications

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1051-1064 doi: 10.1007/s11705-022-2248-x

Abstract: In this work, we report that the thermal pretreatment parameters in air can remarkably influence theThermal pretreatment parameters (heating rate, temperature, and residence time) were systematically investigatedDuring the thermal pretreatment, relatively low temperatures, low heating rates, and short residenceThe overall product yields were similar regardless of the thermal pretreatment conditions.

Keywords： lignin     carbon foam     thermal pretreatment     solar vapor generation    

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Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1447-x

Abstract:

• The optimum SCR activity was realized by tuning the acid pretreatment

Keywords： Air pollution control     Nitrogen oxides     Selective catalytic reduction     Red mud     Solid waste utilization    

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Title Author Date Type Operation

Enhanced dewatering characteristics of waste activated sludge with Fenton pretreatment: effectiveness

Guangyin ZHEN, Xueqin LU, Baoying WANG, Youcai ZHAO, Xiaoli CHAI, Dongjie NIU, Tiantao ZHAO

Journal Article

Biological pretreatment of corn stover by solid state fermentation of

Jian ZHANG, Xin REN, Wenqun CHEN, Jie BAO

Journal Article

Pretreatment method of lignocellulosic materials for bioethanol production

Jin Shengying and Zhang Li’an

Journal Article

Thermochemical pretreatment of meat and bone meal and its effect on methane production

Guangxue WU , Zhenhu HU , Mark G. HEALY , Xinmin ZHAN ,

Journal Article

bioethanol production from sugarcane bagasse: combination of liquid hot water and deep eutectic solvent pretreatment

Journal Article

Life cycle assessment of homogeneous Fenton process as pretreatment for refractory pharmaceutical wastewater

Journal Article

Effect of thermal pretreatment on the surface structure of PtSn/SiO

Guozhen Xu, Jian Zhang, Shengping Wang, Yujun Zhao, Xinbin Ma

Journal Article

Optimization of microwave pretreatment of lignocellulosic waste for enhancing methane production: Hyacinth

Bai-Hang Zhao, Jie Chen, Han-Qing Yu, Zhen-Hu Hu, Zheng-Bo Yue, Jun Li

Journal Article

Modified pretreatment method for total microbial DNA extraction from contaminated river sediment

Yun FANG,Meiying XU,Xingjuan CHEN,Guoping SUN,Jun GUO,Weimin WU,Xueduan LIU

Journal Article

Development of pretreatment protocol for DNA extraction from biofilm attached to biologic activated carbon

Shuting ZHANG, Bo WEI, Xin YU, Bing LIU, Zhuoying WU, Li GU

Journal Article

Ozonation as an efficient pretreatment method to alleviate reverse osmosis membrane fouling caused by

Xuehao Zhao, Yinhu Wu, Xue Zhang, Xin Tong, Tong Yu, Yunhong Wang, Nozomu Ikuno, Kazuki Ishii, Hongying Hu

Journal Article

A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning

Journal Article

Optimization of the O/HO process with response surface methodology for pretreatment of mother liquor

Journal Article

Facile strategy for carbon foam fabrication with lignin as sole feedstock and its applications

Journal Article

Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity

Journal Article