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| 1 | Rapid degradation of hexachlorobenzene by micron Ag/Fe bimetal particles显示文摘The feasibility of the rapid degradation of hexachlorobenzene (HCB) by micron-size silver (Ag)/iron (Fe) particles was investigated.Ag/Fe particles with different ratios (0,0.05%,0.09%,0.20%,and 0.45%) were prepared by electroless silver plating on 300 mesh Fe powder,and were used to degrade HCB at different pH values and temperatures.The dechlorination ability of Fe greatly increased with small Ag addition,whereas too much added Ag would cover the Fe surface and reduce the effective reaction surface,thereby decreasing the extent of dechlorination.The optimal Ag/Fe ratio was 0.09%.Tafel polarization curves showed that HCB was rapidly degraded at neutral or acidic pH,whereas low pH levels severely intensified H2 production,which consumed the reducing electrons needed for the HCB degradation.HCB degradation was more sensitive to temperature than pH.The rate constant of HCB dechlorination was 0.452 min-1 at 85℃,50 times higher than that at 31℃.HCB was degraded in a successive dechlorination pathway,yielding the main products 1,2,4,5-tetrachlorobenzene and 1,2,4-trichlorobenzene within 2 hr. | Xiaoqin Nie Jianguo Liu Xianwei Zeng Dongbei Yue | 2013 | Journal of Environmental Sciences2013,25,3: | 9 |
| 2 | Characterization of humic substances in bio-treated municipal solid waste landfill leachate显示文摘 | Guangxia QI Dongbei YUE Yongfeng NIE | 2012 | Frontiers of Environmental Science & Engineering2012,6,5: | 6 |
| 3 | Effects of fertilization and container-type on nutrient uptake and utilization by four subtropical tree seedlings显示文摘Seedling quality is important for subtropical tree species endangered by the degradation of natural habitats in southern China.At present,the cultural regime for raising these seedlings involving fertilizer levels and size of container is not clear.In this study,seedlings of three endangered species,red-seed tree(Ormosia hosiei),Zhejiang phoebe(Phoebe chekian gensis),and Zhejiang camphor(Cinnamomum japonicum)were evaluated along with red-bark oak(Cyclobalanopsis gilva)as a reference,a species which is not endangered.Seedlings were raised in 2.8,3.6,5.1,and 6.3 L containers and fertilizer applied at 1.0,2.0,3.0 and 4.0 kg m-3.Seedling height and leaf biomass increased in response to higher fertilizer levels while larger containers resulted in greater stem and root biomass.Root biomass of endangered species seedlings did not respond to neither treatments.Zhejiang phoebe seedlings responded to nitrogen and phosphorus uptake but red-seed tree seedlings were unaffected by any nutrient levels.Red-bark oak seedlings had high nitrogen-use efficiency.Based on the results,it is recommended using at least 5.1 L containers to culture Zhejiang phoebe and Zhejiang camphor seedlings with fertilizer at 3.0 kg m-3.Red-bark oak and red-seed tree seedlings should be cultured with 2.0 kg m-3 in smaller containers. | Xiuli Chu Xiuhua Wang Dongbei Zhang Xiaolin Wu Zhichun Zhou | 2020 | Journal of Forestry Research2020,31,4: | 4 |
| 4 | Molecular breeding of water lily: engineering cold stress tolerance into tropical water lily显示文摘Water lilies(order Nymphaeales)are rich in both economic and cultural values.They grow into aquatic herbs,and are divided into two ecological types:tropical and hardy.Although tropical water lilies have more ornamental and medicinal values compared to the hardy water lily,the study and utilization of tropical water lilies in both landscaping and pharmaceutical use is greatly hindered due to their limited planting area.Tropical water lilies cannot survive the winter in areas beyond 24.3°N latitude.Here,the transgenic pipeline through the pollen-tube pathway was generated for water lily for the first time.To improve cold stress tolerance of tropical water lilies,a gene encoding choline oxidase(CodA)driven by a cold stress-inducible promoter was transformed into a tropical water lily through the pollen-tube transformation.Six independent transgenic lines were tested for survival rate during two winter seasons from 2015 to 2017 in Hangzhou(30.3°N latitude).PCR and southern blot detection revealed that the CodA gene had been integrated into the genome.Reverse transcription PCR showed that CodA gene was induced after cold stress treatment,and further quantitative real-time PCR revealed different expressions among six 4 lines and line 3 had the highest expression.Multiple physiological experiments showed that after cold stress treatment,both the conductivity and malondialdehyde(MDA)levels from transgenic plants were significantly lower than those of non-transgenic plants,whereas the content of betaine and the activity of superoxide dismutase,catalase,and peroxidase were higher than those from non-transgenic plants.These results suggest that expression of exogenous CodA gene significantly improved the cold stress tolerance of tropical water lilies through a wide range of physiological alterations.Our results currently expanded a six-latitude cultivating area of the tropical water lilies.These results not only illuminate the bright future for water lily breeding but will also facilitate the functional genomic studies. | Cuiwei Yu Guirong Qiao Wenmin Qiu Dongbei Yu Shirong Zhou Yan Shen Guanchun Yu Jing Jiang Xiaojiao Han Mingying Liu Liangsheng Zhang Fei Chen Yuchu Chen Renying Zhuo | 2018 | Horticulture Research2018,5,1: | 4 |
| 5 | Mechanism of oxidation and catalysis of organic matter abiotic humification in the presence of MnO_2显示文摘Humification plays a critical role in the environmental fate of organic wastes, and MnO_2 holds great promise for enhancing this reaction. However, the effects of MnO_2 on the enhancement of the humification reaction remain ambiguous. To better reveal the mechanism by which MnO_2 enhances the reaction and investigate the fate of the humification products, abiotic humification experiments were performed using increasing concentrations of dissolved organic matter(DOM) to a fixed amount of MnO_2. DOM was represented by model humic precursors consisting of catechol, glucose and glycine. The results indicate that the reduction of MnO_2 played a dominant role in the formation of fulvic-like acids(FLAs), and the subsequent reduction products, MnOOH and Mn(II), acted as catalysts in the formation of humic-like acids(HLAs). Moreover, CO_2 release occurred during the formation of FLAs, and a strong linear correlation between CO_2 release and the formation of FLAs was observed(p < 0.01), where 0.73–1.87 mg of CO_2 was released per mg dissolved organic carbon(DOC)FLAs. Furthermore, the concentration of MnO_2 had a pronounced influence on the product behavior, where a lower MnO_2 concentration decreased the quantity of FLAs produced. | Yingchao Zhang Dongbei Yue Xu Wang Wenfang Song | 2019 | Journal of Environmental Sciences2019,31,3: | 4 |
| 6 | Processing for Zero-Failure Data of the Products显示文摘In this paper, an estimation method for reliability parameter in the case of zero-failuare data-synthetic estimation method is given. For zero-failure data of double-parameter exponential distribution, a hierarchical Bayesian estimation of the failure probability is presented. After failure information is introduced, hierarchical Bayesian estimation and synthetic estimation of the failure probability, as well as synthetic estimation of reliability are given. Calculation and analysis are performed regarding practical problems in case that life distribution of an engine obeys double-parameter exponential distribution. | Han Ming 1,2 & Cui Yuping 3 (1. Department of Statistics, Renmin University of China, Beijing 100872, P.R. China 2. Department of Mathematics, Zhejiang Ocean University, Zhoushan 316004, P.R. China 3. Department of Machine and Electron, Dongbei Power College, Jilin 130012, P.R. China) | 2002 | Journal of Systems Engineering and Electronics2002,13,3: | 3 |
| 7 | Optimized production of a novel bioflocculant M-C11 by Klebsiella sp. and its application in sludge dewatering显示文摘The optimized production of a novel bioflocculant M-C11 produced by Klebsiella sp. and its application in sludge dewatering were investigated. The optimal medium carbon source,nitrogen source, metal ion, initial pH and culture temperature for the bioflocculant production were glucose, NaNO3, MgSO4, and pH 7.0 and 25°C, respectively. A compositional analysis indicated that the purified M-C11 consisted of 91.2% sugar, 4.6% protein and 3.9% nucleic acids(m/m). A Fourier transform infrared spectrum confirmed the presence of carboxyl, hydroxyl,methoxyl and amino groups. The microbial flocculant exhibited excellent pH and thermal stability in a kaolin suspension over a pH range of 4.0 to 8.0 and a temperature range of 20 to 60°C.The optimum bioflocculating activity was observed as 92.37% for 2.56 mL M-C11 and 0.37 g/L CaCl2 dosages using response surface methodology. The sludge resistance in filtration(SRF)decreased from 11.6 × 1012 to 4.7 × 1012m/kg, which indicated that the sludge dewaterability was remarkably enhanced by the bioflocculant conditioning. The sludge dewatering performance conditioned by M-C11 was more efficient than that of inorganic flocculating reagents,such as aluminum sulfate and polymeric aluminum chloride. The bioflocculant has advantages over traditional sludge conditioners due to its lower cost, benign biodegradability and negligible secondary pollution. In addition, the bioflocculant was favorably adapted to the specific sludge pH and salinity. | Jiewei Liu Junwei Ma Yanzhong Liu Ya Yang Dongbei Yue Hongtao Wang | 2014 | Journal of Environmental Sciences2014,26,10: | 2 |
| 8 | Modeling and simulation of landfill gas production from pretreated MSW landfill simulator显示文摘累积垃圾堆气体(LFG ) 生产和它的率为用四的市政的稳固的浪费(MSW ) 垃圾堆首先也就是建模的 pretreated 被模仿订指数的模型,修改 Gompertz 模型,单个部件联合生长和腐烂模型和 Gaussian 功能。就 pretreated MSW 垃圾堆的行为而言,一新多,部件模型基于生物化学的过程那发生在 landfilled pretreated MSW。模型根据联合生长和腐烂用对待 pretreated MSW 的一个厌氧的垃圾堆模拟器反应堆建模的单个部件被开发。它包括降级的三个部件即快速可能减解、中等可能减解、慢慢地可能减解。而且,发达模型统计上为它的美德被分析合适。结果证明多部件 LFG 生产模型与模仿的模型相比是更合适的并且能高效地为 pretreated MSW 垃圾堆被用作一个当模特儿的工具。建议模型是可能的在 LFG 收集系统缩放给帮助,以更低的成本产生快结果,改进本利的分析并且减少 LFG 工程风险。它也显示垃圾堆的稳定并且在垃圾堆空格的复用帮助管理器。建议模型被限制到氧气地 pretreated MSW 垃圾堆并且也从 pretreated MSW 的中等并且慢慢地可能减解的部分在 LFG 生产要求延期时间的价值。 | Rasool Bux MAHAR Abdul Razaque SAHITO Dongbei YUE Kamranullah KHAN | 2016 | Frontiers of Environmental Science & Engineering2016,10,1: | 1 |
| 9 | Fractionation of dissolved organic matter in mature landfill leachate and its recycling by ultrafiltration and evaporation combined processes显示文摘 | XU Yudong YUE Dongbei YI Zhu | 2006 | Chemosphere2006,64,: | 1 |
| 10 | Preparation,characterization and adsorptive study of rare earth ions using magnetic GMZ bentonite显示文摘 | WU Dongbei ZHU Chunming CHEN Yonggui | | 0,,: | 1 |
| 11 | Analytical solution of gravity separation model (GSM) : separation of water droplets from vapor in submerged combustion evaporator 显示文摘 | Yue Dongbei Xu Yudong | 2007 | Chemical Engineering Journal2007,126,2: | 1 |
| 12 | Laboratory-scale experiments applied to the design of a two-stage submerged combustion evaporation system显示文摘 | Yue Dongbei Xu Yudong Rasool Bux Mahar | 2007 | Waste Management2007,27,: | 1 |
| 13 | Preparation, characterization and adsorptive study of rare earth ions using magnetic GMZ bentonite 显示文摘 | Wu Dongbei Zhu Chunming Chen Yonggui | 2012 | Applied Clay Science2012,6263,: | 1 |
| 14 | Sulfide emissions from different areas of a municipal solid waste landfill in Chi na显示文摘 | YUE Dongbei HAN Bing SUN Yue | 2014 | Waste Management2014,34,6: | 1 |
| 15 | Extraction kinetics of Sc( III ) ,Y( III ) ,La( III) and Gd( III ) from chloride medium by Cyanex 302 in heptane using the constant interfacial cell with laminar flow 显示文摘 | Wu Dongbei Wang Xianglan Li Deqian | 2007 | Chemical Engineering and Processing2007,46,1: | 1 |
| 16 | Formic acid in- duces Ycalp-independent apoptosis-like cell death in the yeast Saccharomyces cerevisiae 显示文摘 | Du Lin Su Yingying Sun Dongbei | 2008 | FEMS Yeast Research2008,,4: | 1 |
| 17 | Use of Optical Biosensor Technology to Study Immunological Cross-Reactivity between Different Sulfonamide Drugs显示文摘 | Ateeq Ahmad Anand Ramakrishnan McLean Matthew A Li Dongbei Rock Marie T Karim Aziz and Breau Alan P | 2002 | Analytical Biochemistry2002,,: | 1 |
| 18 | Sulfide emissions from different areas of a municipal solid waste landfill in China 显示文摘 | Yue Dongbei Han Bing Sun Yue | 2014 | Waste Management2014,34,6: | 1 |
| 19 | Fractionation of dissolved organic matter in mature landfill leachate and its recycling by ultrafiltration and evaporation combined processes显示文摘 | XU Yudong YUE Dongbei ZHU Yi | 2006 | Chemosphere2006,64,6: | 1 |
| 20 | Effects of oxidizing environment on digestate humification and identification of substances governing the dissolved organic matter(DOM)transformation process显示文摘The formation of humic-like acids(HLAs)is an essential process for converting liquid digestate into organic soil amendments to enhance agricultural sustainability.The aim of this study was to investigate the impact of oxygen and/or MnO_(2)on the production of HLAs.Herein,abiotic humification performance of the digestate dissolved organic matter(DOM)is investigated with fluxes of air and N2 in the absence and presence of MnO_(2).Our results demonstrated that the fate of digestate DOM greatly depends on the oxidizing environment,the MnO_(2)enhanced nitrogen involved in the formation of HLAs.The synergistic effects of MnO_(2)and oxygen effectively improved the production of HLAs,and the corresponding component evolution was analyzed using spectroscopic evidence.The twodimensional correlation spectroscopy results demonstrated that the reaction sequence of digestate DOM followed the order of protein-like substances,substances with an absorbance at 325 nm,substances with UV absorbance at 254 nm and HLAs.Additionally,excitation emission matrix fluorescence combined with parallel factor analysis(EEM-PARAFAC)showed that tryptophan-like C3 was more prone to transformation than tyrosine-like C2 and was responsible for the humification process.The substance with an absorbance at 325 nm was a reaction intermediate in the transformation process of protein-like substances to HLAs.The above findings can be used to promote the production of liquid fertilizer associated with carbon sequestration as well as the sustainable development of biogas production. | Yingchao Zhang Hongqiong Zhang Xinwei Dong Dongbei Yue Ling Zhou | 2022 | Frontiers of Environmental Science & Engineering2022,16,8: | 0 |