Effect of soil composition on electrokinetically enhanced persulfate oxidation of polychlorobiphenyls

2012 ◽  
Vol 86 ◽  
pp. 164-169 ◽  
Author(s):  
Yeliz Yukselen-Aksoy ◽  
Krishna R. Reddy
Keyword(s):  
Soil Composition ◽  
Persulfate Oxidation ◽  
Electrokinetically Enhanced

Thermally activated persulfate oxidation of NAPL chlorinated organic compounds: effect of soil composition on oxidant demand in different soil-persulfate systems

2017 ◽  
Vol 75 (8) ◽  
pp. 1794-1803 ◽  
Author(s):  
Jialu Liu ◽  
Zhehua Liu ◽  
Fengjun Zhang ◽  
Xiaosi Su ◽  
Cong Lyu
Keyword(s):  
Organic Compounds ◽  
Mineral Content ◽  
Removal Rate ◽  
Soil Types ◽  
Soil Composition ◽  
Persulfate Oxidation ◽  
Chlorinated Volatile Organic Compounds ◽  
Thermally Activated ◽  
Soil Components ◽  
Activated Persulfate

This study investigates the interaction of persulfate with soil components and chlorinated volatile organic compounds (CVOCs), using thermally activated persulfate oxidation in three soil types: high sand content; high clay content; and paddy field soil. The effect of soil composition on the available oxidant demand and CVOC removal rate was evaluated. Results suggest that the treatment efficiency of CVOCs in soil can be ranked as follows: cis-1,2-dichloroethene > trichloroethylene > 1,2-dichloroethane > 1,1,1-trichloroethane. The reactions of soil components with persulfate, shown by the reduction in soil phase natural organics and mineral content, occurred in parallel with persulfate oxidation of CVOCs. Natural oxidant demand from the reaction of soil components with persulfate exerted a large relative contribution to the total oxidant demand. The main influencing factor in oxidant demand in paddy-soil-persulfate systems was natural organics, rather than mineral content as seen with sand and clay soil types exposed to the persulfate system. The competition between CVOCs and soil components for oxidation by persulfate indicates that soil composition exhibits a considerable influence on the available oxidant demand and CVOC removal efficiency. Therefore, soil composition of natural organics and mineral content is a critical factor in estimating the oxidation efficiency of in-situ remediation systems.

Elemental analysis of medicinal plants from different sites by instrumental neutron activation analysis

2016 ◽  
Vol 5 (03) ◽  
pp. 4892 ◽  
Author(s):  
Ratna Raju M.* ◽  
Madhusudhana Rao P. V. ◽  
Seshi Reddy T. ◽  
Raju M. K. ◽  
Brahmaji Rao J. S. ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Instrumental Neutron Activation Analysis ◽  
Activation Analysis ◽  
Medicinal Plants ◽  
Neutron Activation ◽  
Gamma Ray ◽  
Elemental Content ◽  
Soil Composition ◽  
Gamma Ray Spectrometer ◽  
Instrumental Neutron Activation

A study was undertaken to evaluate the inorganic elements for humans in two Indian medicinal plants leaves, namely Sphaeranthus indicus, and Cassia fistula by Instrumental Neutron Activation Analysis (INAA). INAA experiment was performed by using 20 kW KAMINI Reactor at Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam. The emitted gamma rays were measured using gamma ray spectrometer. The concentrations of Al, Br, Ca, Fe, K, La, Mg, Mn, Na, Sc, V and Zn were determined in the selected medicinal plants. The medicinal leaves are using in treatment of various important ailments. The elemental content in selected medicinal leaves is various proportions depending on the soil composition, location of plant specimen and the climate in which the plant grows.

Improving peroxymonosulfate activation by copper ion-saturated adsorbent-based single atom catalysts for the degradation of organic contaminants: electron-transfer mechanism and the key role of Cu single atoms

2021 ◽  
Author(s):  
Jingwen Pan ◽  
Baoyu Gao ◽  
Pijun Duan ◽  
Kangying Guo ◽  
Muhammad Akram ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Organic Contaminants ◽  
High Salinity ◽  
Copper Ion ◽  
Single Atom ◽  
Electron Transfer Mechanism ◽  
Persulfate Oxidation ◽  
Single Atoms ◽  
Oxidation Technology

Nonradical pathway-based persulfate oxidation technology is considered to be a promising method for high-salinity organic wastewater treatment.

Pyrene contaminated soil remediation using microwave/magnetite activated persulfate oxidation

Chemosphere ◽  
2021 ◽  
pp. 131787
Author(s):  
Dan Wu ◽  
Hongshuai Kan ◽  
Ying Zhang ◽  
Tiecheng Wang ◽  
Guangzhou Qu ◽  
...  
Keyword(s):  
Soil Remediation ◽  
Contaminated Soil ◽  
Persulfate Oxidation ◽  
Activated Persulfate

Detection of oasis soil composition and analysis of environmental parameters based on hyperspectral image and GIS

2021 ◽  
Vol 14 (11) ◽  
Author(s):  
Yingfeng Chen ◽  
Zhongyong Xiao ◽  
Guoqiang Chen ◽  
Weimin Su ◽  
Jiongfeng Chen
Keyword(s):  
Hyperspectral Image ◽  
Environmental Parameters ◽  
Soil Composition

Modeling of iron activated persulfate oxidation treating reactive azo dye in water matrix

2011 ◽  
Vol 172 (1) ◽  
pp. 109-121 ◽  
Author(s):  
Hrvoje Kusic ◽  
Igor Peternel ◽  
Sime Ukic ◽  
Natalija Koprivanac ◽  
Tomislav Bolanca ◽  
...  
Keyword(s):  
Azo Dye ◽  
Persulfate Oxidation ◽  
Water Matrix ◽  
Activated Persulfate
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