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Degradation of refractory organics in concentrated leachate by the Fenton process: Central composite

Senem Yazici Guvenc, Gamze Varank

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1294-1

Abstract: Abstract • 90% total COD, 95.3% inert COD and 97.2% UV254 were removed. • High R2 values (over 95%) for all responses were obtained with CCD. • Operational cost was calculated to be 0.238 €/g CODremoved for total COD removal. • Fenton oxidation was highly-efficient method for inert COD removal. • BOD5/COD ratio of leachate concentrate raised from 0.04 to 0.4. The primary aim of this study is inert COD removal from leachate nanofiltration concentrate because of its high concentration of resistant organic pollutants. Within this framework, this study focuses on the treatability of leachate nanofiltration concentrate through Fenton oxidation and optimization of process parameters to reach the maximum pollutant removal by using response surface methodology (RSM). Initial pH, Fe2+ concentration, H2O2/Fe2+ molar ratio and oxidation time are selected as the independent variables, whereas total COD, color, inert COD and UV254 removal are selected as the responses. According to the ANOVA results, the R2 values of all responses are found to be over 95%. Under the optimum conditions determined by the model (pH: 3.99, Fe2+: 150 mmol/L, H2O2/Fe2+: 3.27 and oxidation time: 84.8 min), the maximum COD removal efficiency is determined as 91.4% by the model. The color, inert COD and UV254 removal efficiencies are determined to be 99.9%, 97.2% and 99.5%, respectively, by the model, whereas the total COD, color, inert COD and UV254 removal efficiencies are found respectively to be 90%, 96.5%, 95.3% and 97.2%, experimentally under the optimum operating conditions. The Fenton process improves the biodegradability of the leachate NF concentrate, increasing the BOD5/COD ratio from the value of 0.04 to the value of 0.4. The operational cost of the process is calculated to be 0.238 €/g CODremoved. The results indicate that the Fenton oxidation process is an efficient and economical technology in improvement of the biological degradability of leachate nanofiltration concentrate and in removal of resistant organic pollutants.

Keywords： Concentrated leachate     Fenton oxidation     Central composite design     Biodegradability     Inert COD    

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Efficient H2O2 Electrosynthesis and Its Electro-Fenton Application for RefractoryOrganics Degradation Article

Lei Li,Jing Bai,Panyu Jiang,Yan Zhang,Tingsheng Zhou,Jiachen Wang,Changhui Zhou,Jinhua Li,Baoxue Zhou

Engineering 2023, Volume 30, Issue 11,   Pages 131-143 doi: 10.1016/j.eng.2023.02.005

Abstract: O2 reduction reaction is a promising alternative to the conventional Fenton treatment of refractorysolution for efficient H2O2 generation and its electro-Fenton (EF) application for refractoryOH was produced for excellent EF performance, resulting in a degradation efficiency of over 96% for refractoryorganics.This study offers a novel engineering solution for the efficient treatment of refractory wastewater using

Keywords： Hydrogen peroxide     Hydrophilic/hydrophobic interface modification     Electro-Fenton     Refractory organics    

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Phase I study of CBM.CD19 chimeric antigen receptor T cell in the treatment of refractory diffuse large

Frontiers of Medicine 2022, Volume 16, Issue 2,   Pages 285-294 doi: 10.1007/s11684-021-0843-8

Abstract: second-generation anti-CD19 CAR bearing 4-1BB costimulatory molecule, for the treatment of patients with refractoryTen heavily treated patients with refractory DLBCL were given CBM.CD19 CAR-T cell (C-CAR011) treatmentTherefore, C-CAR011 is a safe and effective therapeutic option for Chinese patients with refractory DLBCL

Keywords： CAR-T cell therapy     refractory diffuse large B-cell lymphoma     cytokine release syndrome     dose-limiting    

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The temporal changes of the concentration level of typical toxic organics in the river sediments around

Qiang Li, Xiong Xu, Yaoyao Fang, Ruiyang Xiao, Donghong Wang, Wenjue Zhong

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1054-7

Abstract:

The current situation of typical organics in the sediments around

56 kinds of typical toxic organics were detected

The change of different organics in the sediments

Keywords： Organic compounds     Endocrine disrupters     Sediments     Concentration     Temporal changes    

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Acidogenic sludge fermentation to recover soluble organics as the carbon source for denitrification in

Lin Lin, Ying-yu Li, Xiao-yan Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1043-x

Abstract:

CEPS sludge was compared with conventional primary and secondary sludge for the VFAs yield.

Fe-based CEPS sludge exhibited the highest efficiency of organic recovery.

Fermented CEPS sludge liquor provided a sufficient carbon source for denitrification.

99% of nitrate removal was achieved based on the Fe-CEPS and sludge fermentation.

Keywords： Sewage sludge     Chemically enhanced primary sedimentation (CEPS)     Acidogenic fermentation     Organic carbon recovery     Nitrogen removal    

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Boron neutron capture therapy of gliomas and refractory pituitary adenomas: current status and future

Dai Congxin,Yao Yong,Wang Renzhi

Strategic Study of CAE 2012, Volume 14, Issue 8,   Pages 96-99

Abstract: Moreover, BNCT may have a significant therapeutic effect on refractory pituitary adenomas which haveThis paper reviews the current status of BNCT for human liomas and the possibility to treat refractory

Keywords： boron neutron capture therapy     gliomas     refractory pituitary adenomas    

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Salvage therapy with lenalidomide containing regimen for relapsed/refractory Castleman disease: a report

Xinping Zhou, Juying Wei, Yinjun Lou, Gaixiang Xu, Min Yang, Hui Liu, Liping Mao, Hongyan Tong, Jie Jin

Frontiers of Medicine 2017, Volume 11, Issue 2,   Pages 287-292 doi: 10.1007/s11684-017-0510-2

Abstract: No standard therapy is recommended for relapsed/refractory CD patients, thus requiring development ofOur cohort of three adult patients with multicentric CD (MCD) were treated with refractory to traditional

Keywords： Castleman disease     lenalidomide    

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Chimeric antigen receptor T-cell therapy: a promising treatment modality for relapsed/refractory mantle

Ping Li, Ningxin Dong, Yu Zeng, Jie Liu, Xiaochen Tang, Junbang Wang, Wenjun Zhang, Shiguang Ye, Lili Zhou, Alex Hongsheng Chang, Aibin Liang

Frontiers of Medicine 2020, Volume 14, Issue 6,   Pages 811-815 doi: 10.1007/s11684-020-0740-6

Abstract: and inhibitors of B cell lymphoma-2 and Bruton’s tyrosine kinase have shown efficacy for relapsed or refractory

Keywords： anti-CD19 chimeric antigen receptor T cells     mantle cell lymphoma     relapsed or refractory     long-term follow-up    

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Reevaluation of the effect of Dianxianning on seizure rate of refractory epilepsy as additive treatment

Liyun He, Tiancai Wen, Shiyan Yan, Runjin Li, Zufa Liu, Hui Ren, Jinmin Liu, Fengshan Zhang, Jianzhong Wu, Jian Liu

Frontiers of Medicine 2011, Volume 5, Issue 2,   Pages 229-234 doi: 10.1007/s11684-011-0139-5

Abstract: We observed the effect of Dianxianning, which was used as additive treatment to treat 206 epilepsy patients, on the epilepsy seizure rate. Based on a multicenter, prospective, randomized, and controlled clinical trial design, we used the seizure rate of epilepsy as the main index. For the treatment group comprising 137 patients, we combined Dianxianning with chemical medicine, which is the basic treatment. For the control group with 69 patients, we added placebo. The results showed that 1) Effect on seizure rate: After a three-month treatment, the seizure rate of the treatment group decreased by 37.84% on average, whereas that of the control group decreased by 13.18% on average. Statistically comparing the two groups, there was a significant difference between these groups ( <0.05). 2) Effect on seizure frequency: As time passed, the frequency in each group gradually decreased. After a three-month treatment, there was a significant difference between the two groups ( <0.05). 3) Comparison between the before and after treatment of each group: There was a very significant difference between the two groups ( <0.0001). The results indicated that, as an additive treatment, Dianxianning has a good effect on controlling the epilepsy seizure rate and frequency management. It is more effective than using chemical medicine alone.

Keywords： Dianxianning     epilepsy seizure     evaluation    

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Trophic mode and organics metabolic characteristic of fungal community in swine manure composting

Jing Peng, Ke Wang, Xiangbo Yin, Xiaoqing Yin, Mengfei Du, Yingzhi Gao, Philip Antwi, Nanqi Ren, Aijie Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1177-5

Abstract: Redox potential, organics and moisture are main factors impacting fungal community.

Keywords： Fungus     FUNGuild     Biolog     Trophic mode     Composting     Oxidation reduction potential    

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Different sites of extranodal involvement may affect the survival of patients with relapsed or refractory

Lili Zhou, Ping Li, Shiguang Ye, Xiaochen Tang, Junbang Wang, Jie Liu, Aibin Liang

Frontiers of Medicine 2020, Volume 14, Issue 6,   Pages 786-791 doi: 10.1007/s11684-020-0751-3

Abstract: durable remissions after anti-CD19 chimeric antigen receptor T (CAR-T) cell immunotherapy for relapsed or refractory

Keywords： anti-CD19 chimeric antigen receptor T cell     soft tissue     bone marrow     relapsed or refractory non-Hodgkin    

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Autologous peripheral hematopoietic stem-cell transplantation in a patient with refractory pemphigus

SUN Ledong, SUN Jing, ZENG Kang, MENG Fanyi, DIAO Youtao, XU Dan, HUANG Liang, ZHAO Jie, Liu Qifa

Frontiers of Medicine 2008, Volume 2, Issue 2,   Pages 191-194 doi: 10.1007/s11684-008-0036-8

Abstract: effectiveness of autologous peripheral hematopoietic stem-cell transplantation in the treatment of refractorysuggests that autologous peripheral hematopoietic stem cell transplantation may be a potential “cure” for refractory

Keywords： serological activity     leukapheresis     peripheral hematopoietic     cyclophosphamide     resistance    

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Research on physical-chemical and biochemical combined technology in the treatment of refractory petrochemical

Tian Zhiyong,Tu Xiang,Song Yonghui,Xin Wang,Li Fayun

Strategic Study of CAE 2013, Volume 15, Issue 3,   Pages 80-87

Abstract: pilot-scale physical-chemical and biochemical combined technology tests were carried out for the treatment of refractoryIn addition, due to the lack of biodegradable organic carbon source and the refractory of acrylonitrile

Keywords： refractory     dry-spun     acrylic fiber wastewater     physical-chemical     biochemical     combined treatment    

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A Nitride-Reinforced NbMoTaWHfN Refractory High-Entropy Alloy with Potential Ultra-High-Temperature Engineering Article

Yixing Wan,Yanhai Cheng,Yongxiong Chen,Zhibin Zhang,Yanan Liu,Haijun Gong,Baolong Shen,Xiubing Liang

Engineering 2023, Volume 30, Issue 11,   Pages 110-120 doi: 10.1016/j.eng.2023.06.008

Abstract:

Refractory high-entropy alloys (RHEAs) have promising applications as the new generation of high-temperaturethat exceeds the high temperature and strength of most known alloys, including high-entropy alloys, refractory

Keywords： Refractory high-entropy alloy     High temperature     Mechanical property     Microstructure     Strengthening mechanism    

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Unlocked disinfection by-product formation potential upon exposure of swimming pool water to additional stimulants

Alvyn P. Berg, Ting-An Fang, Hao L. Tang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1098-3

Abstract: >

• Reactions between chlorine and anthropogenic organics

Keywords： Trihalomethanes     Haloacetic acids     Chloroform     Residual chlorine     Anthropogenic organics     Swimming pool water    

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Title Author Date Type Operation

Degradation of refractory organics in concentrated leachate by the Fenton process: Central composite

Senem Yazici Guvenc, Gamze Varank

Journal Article

Efficient H2O2 Electrosynthesis and Its Electro-Fenton Application for RefractoryOrganics Degradation

Lei Li,Jing Bai,Panyu Jiang,Yan Zhang,Tingsheng Zhou,Jiachen Wang,Changhui Zhou,Jinhua Li,Baoxue Zhou

Journal Article

Phase I study of CBM.CD19 chimeric antigen receptor T cell in the treatment of refractory diffuse large

Journal Article

The temporal changes of the concentration level of typical toxic organics in the river sediments around

Qiang Li, Xiong Xu, Yaoyao Fang, Ruiyang Xiao, Donghong Wang, Wenjue Zhong

Journal Article

Acidogenic sludge fermentation to recover soluble organics as the carbon source for denitrification in

Lin Lin, Ying-yu Li, Xiao-yan Li

Journal Article

Boron neutron capture therapy of gliomas and refractory pituitary adenomas: current status and future

Dai Congxin,Yao Yong,Wang Renzhi

Journal Article

Salvage therapy with lenalidomide containing regimen for relapsed/refractory Castleman disease: a report

Xinping Zhou, Juying Wei, Yinjun Lou, Gaixiang Xu, Min Yang, Hui Liu, Liping Mao, Hongyan Tong, Jie Jin

Journal Article

Chimeric antigen receptor T-cell therapy: a promising treatment modality for relapsed/refractory mantle

Ping Li, Ningxin Dong, Yu Zeng, Jie Liu, Xiaochen Tang, Junbang Wang, Wenjun Zhang, Shiguang Ye, Lili Zhou, Alex Hongsheng Chang, Aibin Liang

Journal Article

Reevaluation of the effect of Dianxianning on seizure rate of refractory epilepsy as additive treatment

Liyun He, Tiancai Wen, Shiyan Yan, Runjin Li, Zufa Liu, Hui Ren, Jinmin Liu, Fengshan Zhang, Jianzhong Wu, Jian Liu

Journal Article

Trophic mode and organics metabolic characteristic of fungal community in swine manure composting

Jing Peng, Ke Wang, Xiangbo Yin, Xiaoqing Yin, Mengfei Du, Yingzhi Gao, Philip Antwi, Nanqi Ren, Aijie Wang

Journal Article

Different sites of extranodal involvement may affect the survival of patients with relapsed or refractory

Lili Zhou, Ping Li, Shiguang Ye, Xiaochen Tang, Junbang Wang, Jie Liu, Aibin Liang

Journal Article

Autologous peripheral hematopoietic stem-cell transplantation in a patient with refractory pemphigus

SUN Ledong, SUN Jing, ZENG Kang, MENG Fanyi, DIAO Youtao, XU Dan, HUANG Liang, ZHAO Jie, Liu Qifa

Journal Article

Research on physical-chemical and biochemical combined technology in the treatment of refractory petrochemical

Tian Zhiyong,Tu Xiang,Song Yonghui,Xin Wang,Li Fayun

Journal Article

A Nitride-Reinforced NbMoTaWHfN Refractory High-Entropy Alloy with Potential Ultra-High-Temperature Engineering

Yixing Wan,Yanhai Cheng,Yongxiong Chen,Zhibin Zhang,Yanan Liu,Haijun Gong,Baolong Shen,Xiubing Liang

Journal Article

Unlocked disinfection by-product formation potential upon exposure of swimming pool water to additional stimulants

Alvyn P. Berg, Ting-An Fang, Hao L. Tang

Journal Article