STUDY ON PHOTO-DEGRADATION OF PYRETHROID IN JIULONG RIVER ESTUARY WATERS

被引：0

作者：

Liang, Yanru ^{[1
,2
,3
]}

Yuan, Jianbin ^{[4
]}

Jing, Yan ^{[3
]}

机构：

[1] Guangxi Key Lab Beibu Gulf Marine Biodivers Conse, 12 Binhai New Town,Binhai Rd, Qinzhou, Guangxi Provinc, Peoples R China

[2] Guangxi Coll & Univ Key Lab Exploitat & Prot Beib, 12 Binhai New Town,Binhai Rd, Qinzhou, Guangxi Provinc, Peoples R China

[3] Qinzhou Univ, 12 Binhai New Town,Binhai Rd, Qinzhou, Guangxi Provinc, Peoples R China

[4] Guangdong Ocean Univ, 1 Sea Rd, Zhanjiang City, Guangdong, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2017年 / 26卷 / 06期

关键词：

Estuary; Pyrethroid; Fenvalerate; Photo-degradation; PHOTOCHEMISTRY;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This article study on photo-degradation of pyrethroid pesticides in estuary water by means of HPLC-DAD. Samples were degraded in a self-made photo-reactor, separated through integrating high performance liquid chromatography (HPLC) and tested with diode array detector (DAD). Photo-degradation reaction of fenvalerate was studied. The results show that the photo-degradation kinetics of fenvalerate in Jiulong River estuary water follows the first-order reaction. Degradation rate of fenvalerate was strongly influ- enced by pH, initial concentration of H2O2 and illumination time, whereas the effect of salinity on degradation rate of fenvalerate is not obvious in the natural water. Degradation rate of fenvalerate in this estuary water was 97% after 10 seconds under UV light, and the main degradation products are not stable in this degradation system, with their concentration first increasing and then decreasing, reach to maximum in 8 seconds, degradation rate is 71.6% in 10 seconds.

引用

页码：4097 / 4102

页数：6

共 50 条

[31] Anti-oxidation of Photo-degradation Alkali Lignin
Ma, Y. L.
Fang Guizhen
Li Shujun
CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING, PTS 1-4, 2014, 838-841 : 2379 - 2382
[32] Distribution and risk assessment of 82 pesticides in Jiulong River and estuary in South China
Zheng, Senllin
Chen, Bin
Qiu, Xiaoyan
Chen, Meng
Ma, Zhiyuan
Yu, Xingguang
CHEMOSPHERE, 2016, 144 : 1177 - 1192
[33] Photo-degradation and emission characteristics of benzidine in halomethane solvents
Azim, SA
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2000, 56 (01) : 127 - 132
[34] Photo-degradation of PS/SBRr blends compatibilized with SEBS
Barreto Luna, Carlos Bruno
Calheiro Gomes, Felipe Belchior
Barbosa Ferreira, Eduardo da Silva
Araujo, Edcleide Maria
Barbosa Ferreira, Rodholfo da Silva
Ramos Wellen, Renate Maria
MATERIALS RESEARCH EXPRESS, 2019, 6 (09):
[35] Analysis of Photo-degradation of Dyed Veneer by XRD and SEM
Liu, Yi
Gao, Jianmin
Shao, Lingmin
Guo, Hongwu
EMERGING FOCUS ON ADVANCED MATERIALS, PTS 1 AND 2, 2011, 306-307 : 1609 - 1612
[36] Photo-degradation behaviour of roseoflavin in some aqueous solutions
Tyagi, A.
Penzkofer, A.
Mathes, T.
Hegemann, P.
CHEMICAL PHYSICS, 2010, 369 (01) : 27 - 36
[37] A study on the dispersion, preparation, characterization and photo-degradation of polypropylene traced with rare earth oxides
Bezati, Feliks
Massardier, Valerie
Balcaen, Jean
Froelich, Daniel
POLYMER DEGRADATION AND STABILITY, 2011, 96 (01) : 51 - 59
[38] Effect of stabilizer and pigment on photo-degradation depth profiles in polypropylene
Turton, TJ
White, JR
POLYMER DEGRADATION AND STABILITY, 2001, 74 (03) : 559 - 568
[39] Changes in chemical properties and bioactivities of turmeric pigments by photo-degradation
Jung, Yu Na
Hong, Jungil
AIMS AGRICULTURE AND FOOD, 2021, 6 (02): : 754 - 767
[40] Influence of pH on fluorescent dissolved organic matter photo-degradation
Timko, Stephen A.
Gonsior, Michael
Cooper, William J.
WATER RESEARCH, 2015, 85 : 266 - 274

← 1 2 3 4 5 →