被引排行
Review on the Degradation of Traditional Chinese Medicine Slag by Composite Microbial Flora
LI Ya-dan;GUO Yi-dong;LIU Ni-fu;LI San-xin;ZOU Liang;GONG Yun;Zhuzhou Qianjin Pharmaceutical Company Limited;Sichuan Antibiotics Industry Research Institute;Traditional Chinese medicine slag contains plant fiber,protein,polysaccharide and other ingredients.How to utilize traditional Chinese medicine slag correctly is still the bottleneck of modern traditional Chinese medicine enterprises.Research progress of the degradation of traditional Chinese medicine slag by composite microbial flora are reviewed in this paper.It provides help for the harmless degradation and comprehensive utilization of traditional Chinese medicine slag.
Electrochemical Behaviour of Poly(Acid Chrome Blue K) and Its Application for the Catalytic Oxidation of Dopamine
ZOU Xin ping,YU Jiu hong,YANG Nian jun,WAN Qi jin (Department of Chemistry,Hubei Normal University,Huangshi 435002,China)The electrochemical polymerization of acid chrome blue K(ACBK) on glassy carbon electrode forms ACBK film electrode The electrochemical behaviour of this electrode in aqueous solutions has been investigated It can perform perfect catalytic oxidation to dopamine(DA),make the oxidation peak potential of DA shift negatively nearly 400 mV The catalytic current is proportional to the concentration of DA in the range of 1×10 -6 1×10 -3 mol·l -1 and the detection limit can reach 8×10 -8 mol·l -1 The ACBK film modified electrode system is stable enough to be applied to quantitative analysis of practical samples
Research Progress in Treatment of Industrial Wastewater by Fe/C Micro-Electrolysis
CHENG Yanyan;CHENG Weidong;Environmental problem caused by industrial wastewater is prominent in China,and the treatment of industrial wastewater is imminent.Micro-electrolysis,which can be employed to dispose industrial wastewater by waste,can be widely used in the field of industrial wastewater treatment.Meanwhile,Fe/C micro-electrolysis has been extensively applied in the field of industrial wastewater.We briefly summarize the defects of the traditional micro-electrolysis,and emphatically analyze the research progress of the new micro-electrolysis.Moreover,we point out the directions of Fe/C micro-electrolysis,and provide theoretical guidance for treatment of hard degradation industrial wastewater.
Microbial Degradation of Organochlorine Pesticides
SHANG Wenxian;XU Hongying;WANG Junwei;ZHANG Chan;Organochlorine pesticides are highly effective insecticides widely used in agricultural production.Although they are banned in the 1960 s, their residues in the environment still pose a great threat to the ecological environment and human health.At present, microbial degradation is an effective means to reduce the pollution of organochlorine pesticides in the environment.In this paper, we introduce the pollution status of organochlorine pesticides in recent years in China, summarize the research process of microbial degradation of five main organochlorine pesticides and degradation enzyme and genes at home and abroad, and put forward the development prospect of microbial degradation of organochlorine pesticides, so as to provide a reference for the bioremediation of organochlorine-pesticide-polluted environment.
Ultrasonic Extraction of Alkaloids from Capsella Bursa-pastoris
PAN Ming(Department of Bioengineering,Sichuan Institute of Technology,Zigong 643000,China)A novel extraction process of alkaloids from Capsella bursa-pastoris by ultrasonic treatment was tested.The effects of extractants,solid liquid ratio,extraction time and temperature,ultrasonic power on extraction efficiency were studied.The optimum extracting conditions of alkaloids were investigated by using orthogonal experimental design.The results were as follows:ethanol volume fraction 70%,solid liquid ratio 1∶10,extraction time 10 min,temperature 50℃,ultrasonic power(160 W).
Optimization of Technological Conditions for Photocatalytic Degradation of Dye Printing Wastewater by TiO_2
LUO Jie 1 ,CHEN Jian-shan 1 ,ZHOU Gang 1 ,HUANG Shi-feng 2 (1.College of Industry, Central South Forestry University, Changsha 410004,China; 2. Zhongshan Henya Environmental Engineering Co. Ltd., Zhongshan 528402,China)In this paper, the orthogonal experiment method was used to study technological conditions for photocatalytic degradation of dye printing wastewater which selecting the anatase TiO 2 as photocatalyst and high-pressure mercury lamp as light source. The experimental results showed that the optimized conditions were determined as follows:the amount of TiO 2 was 6 g·L -1 , pH value was 5.35, the time of 300 W UV illumination was 120 min and the amount of air was 1.5 L·min -1 . Under the conditions, the removal efficiency of COD Cr and color of dye printing wastewater could reach 85.60% and upwards 98.0% respectively.
Electrochemical Study on Natural Antioxidants
HE Jian-bo,XU Hong-mei,ZHU Yan-wu,WU Xiao-jing China)The natural antioxidant has attracted a great deal of attention due to its importance in medicine and food industry.This paper reviewed the applications of electrochemical methods on the study of natural antioxidants and prospected the tendency of electrochemical study on natural antioxidants.
Study on Reinforcing of Poly(Butylene Succinate) by Modified Starch Nanocrystals
GAO Shan-jun,YIN Kai-kai(Department of Polymer Materials and Engineering,School of Material Sciences and Engineering,Wuhan University of Technology,Wuhan 430070,China)The modified starch nanocrystals(NTST) were prepared by the grafting reaction of toluene 2,4-diisocyanate(TDI) and starch nanocrystals in organic solvents,then NTST were used as fillers to prepare PBS/NTST nanocomposites by melt blending.NTST was characterized by infrared spectroscopy analysis,X-ray diffraction analysis,wettability tests and contact angle measurements.The results showed that the grafting reaction of TDI and starch nanocrystals was successful and NTST was hydrophobic with low surface energy.The PBS/NTST nanocomposites were characterized by FTIR,differential thermal analysis(DTA),tensile tests and scanning electron microscopy.The results showed that NTST dispersed uniformly in the PBS matrix and the obtained nanocomposites were increased in thermal stability and in strength.