被引排行
Development of Organic Polymer Flocculants
ZHANG Guo-jie, WANG Dong, CHENG Shi-yuan (School of Chemistry and Material Science, Hubei University,Wuhan 430062,China)Flocculation is one of the best process used for waste water treatment, and flocculant is key factor during flocculation process. In this article, development of organic flocculant, including natural modified polymer flocculant and synthetic polymer flocculant were summarized. Emphasis was put on their synthesis methods and applications. Finally, the developing trends of flocculants were discussed.
Research Progress on Fermentation Production of Enzyme by Aspergillus Niger
ZHANG Xi;HAN Shuang-yan;Aspergillus niger is one of common fungus species.Some characters,such as vigorous growth,short fermentation cycle,no toxins produced during growth,make Aspergillus niger recognized as GRAS(Generally Recognized as Safe)by US Food and Drug Administration(FDA).Aspergillus niger tends to be an important industrial enzyme production strain.In this paper,production of cellulase,xylanase,protease,amylase,lipase by Aspergillus niger is reviewed,and their future prospects of applications are also presented.
Study on Pharmacological Activity and Development for Dioscorea Opposita Thunb
JIANG Hong-bo(Department of Geography and Environmental Engineering,Baoji University of Arts and Sciences,Baoji 721013,China)Dioscorea opposita thunb contains a variety of useful active components,such as polysaccharides,flavonoids,amino acids,sticky protein,amylase and various trace elements.In this paper,studies on active ingredients,pharmacological activity and development of Dioscorea opposita thunb were summarized.The research prospect of Pioscorea opposita thunb was put forward.
Research Progress in Characteristic and Application of Sphingomonas
ZHANG Ying;YANG Yue;WEI Qinghui;ZHAO Min;Sphingomonas is a new genus re-isolated from Pseudomonas in recent years, which has a unique lipopolysaccharide structure.In view of the characteristics of fast reproduction, high efficiency, saving time and effort, and non-pollution, Sphingomonas can grow under high oxygen-poor and harsh conditions, and has been widely used in the degradation of macromolecules, such as polycyclic aromatic hydrocarbons, petroleum, azo dyes, chlorinated phenols, pesticides, herbicides, and the industrial production of biomass carotenoids and bio-glues.In this paper, we review the application and research progress of Sphingomonas from the following aspects: in the degradation of environmental pollutants, anti-oxidative aging, and interaction with plants.Sphingomonas has the market value of being developed as microbial agents.
Research Advancement of Ethyl Carbamate in Fermented Food
WU Shi-jia,WANG Hong-xin (School of Food Science and Technology,Jiangnan University,Wuxi 214122,China)Ethyl carbamate(EC) is a known genotoxic carcinogen which is contained widespread in fermented food. The carcinogenic mechanism,approach of formation,elimination method of ethyl carbamate (EC) was summarized to enhance the social recognition of it as a carcinogen. To better protect customers' interests,the detection method was needed to be improved and the limitation standard of EC was proposed to be established also.
The Chemical Process Simulation Technology and HYSIM 's Application in Chemical Industry
LEI Peide1, LI Duanyang2, WANG Jing2 CHEN Xianzhong2(1.Hubei Provincial Chemistry and Chemical Engineering Society, Wuhan 430071, China;2.SupervisoryCenter of Hubei Provincial Petrochemical Industry Administrative Office,Wuhan 430071, China)In this paper,the status, application and function for the chemical process simulation technology are discussed. HYSIM system and its application are introduced. We think the application in the chemical process simulation technology have become necessity in factories.
Research Progress on Electrochemical Oxidation Treatment in Refractory Wastewater
CHENG Di,ZHAO Xin,QIU Feng,ZHOU Lei,LI Chang-bo,ZHANG Hong-lin(School of Environmental and Biological Engineering,Liaoning Shihua University,Fushun 113001,China)This paper describes the research progress of electrochemical oxidation treatment in refractory wastewater at home and abroad,discusses the mechanism of electrochemical oxidation including anodic oxidation technique and cathodic reduction technique in detail,introduces the main influential factors on the degradation efficiency of electrochemical oxidation such as electrode materials,electrochemical reactor,the pH value of the solution,solvent and other factors.The research of electrochemical oxidation mechanism for organic pollutants,the development of electrode materials,the research and development of high efficiency electrolysis reactor,the research on application of specific electrochemical oxidation systems are aspects of the prospect of electrochemical oxidation treatment in refractory wastewater.
Research Progress of Single Nucleotide Polymorphism
YANG Yong-qiang,WANG Wei-jie,XU Chang-bo(College of Chemical Engineering and Biotechnology,Hebei Polytechnic University,Tangshan 063009,China)The single nucleotide polymorphism(SNP) marker,as the third generation DNA genetic sign,plays an important role in discovery of certain gene mutations.It has been found that SNP has an obvious relationship with medicine or susceptibility to desease in recent years.Through sorting and summarizing materials,a brief account of the relative information and the current study in particular associated with diseases of SNP are presented.
Comparison and Selection of Process of Hydrogen Production
LIU Yi-ming(Hubei Research and Design Institute of Chemical Industry,Wuhan 430074,China)The process and technology for hydrogen production from steam reforming of natural gas,steam reforming of methanol,electrolysis of water were introduced.Three processes of hydrogen production were compared and selected.The principle of these was put forward.
The Modification and Application of the Ultrafine Silica
XIE Hai an,DAI Hong cheng (School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430074, China)This paper expounded on the modification mechanism and the research findings of ultrafine silica in recent years,and forecast the application field of ultrafine silica.