Pretreatment of TNT red water by complex extraction

Qian Wang; Yan Wen Zhang; Ming Li; Hong Quan Yin; Ru Yi Ma; Xin Tao Yang; Fu Xue Chen; Yu Kai Wu

doi:10.11943/j.issn.1006-9941.2016.07.014

Pretreatment of TNT red water by complex extraction

Qian Wang, Yan Wen Zhang, Ming Li, Hong Quan Yin, Ru Yi Ma, Xin Tao Yang, Fu Xue Chen, Yu Kai Wu^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The TNT red water in the process of TNT production was pretreated by the complex extraction using trinoctylamine as a complex extraction agent. Seeing the removal rate of chemical oxygen demand (COD) and recycle use of extraction agent as goal, the effect of pH value, stirring speed, stirring time and the ratio of extraction agent and wastewater on the extraction efficiency was investigated. A study of intermittent experiment and continuous experiment was carried out. Results show that the extraction efficiency is the best when pH value is 0.9, stirring speed is 220 r·min^-1, stirring time is 30 min. When the volume radio of the extraction agent and wastewater is 2.4, the COD removal rate of common TNT red water reaches 99.4% by realizing the control of content of COD in effluent water via changing the extraction phase ratio. The COD removal rate of military TNT red water reaches 99.0%. When the volume ratio of extraction agent and wastewater is 2.3-2.4, the extraction agent can be recycled.

Original language	English
Pages (from-to)	703-708
Number of pages	6
Journal	Hanneng Cailiao/Chinese Journal of Energetic Materials
Volume	24
Issue number	7
DOIs	https://doi.org/10.11943/j.issn.1006-9941.2016.07.014
Publication status	Published - 25 Jul 2016

Keywords

Complexation extraction
Continuous experiment
Intermittent experiment
TNT red water

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10.11943/j.issn.1006-9941.2016.07.014

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title = "Pretreatment of TNT red water by complex extraction",

abstract = "The TNT red water in the process of TNT production was pretreated by the complex extraction using trinoctylamine as a complex extraction agent. Seeing the removal rate of chemical oxygen demand (COD) and recycle use of extraction agent as goal, the effect of pH value, stirring speed, stirring time and the ratio of extraction agent and wastewater on the extraction efficiency was investigated. A study of intermittent experiment and continuous experiment was carried out. Results show that the extraction efficiency is the best when pH value is 0.9, stirring speed is 220 r·min-1, stirring time is 30 min. When the volume radio of the extraction agent and wastewater is 2.4, the COD removal rate of common TNT red water reaches 99.4% by realizing the control of content of COD in effluent water via changing the extraction phase ratio. The COD removal rate of military TNT red water reaches 99.0%. When the volume ratio of extraction agent and wastewater is 2.3-2.4, the extraction agent can be recycled.",

keywords = "Complexation extraction, Continuous experiment, Intermittent experiment, TNT red water",

author = "Qian Wang and Zhang, {Yan Wen} and Ming Li and Yin, {Hong Quan} and Ma, {Ru Yi} and Yang, {Xin Tao} and Chen, {Fu Xue} and Wu, {Yu Kai}",

year = "2016",

month = jul,

day = "25",

doi = "10.11943/j.issn.1006-9941.2016.07.014",

language = "English",

volume = "24",

pages = "703--708",

journal = "Hanneng Cailiao/Chinese Journal of Energetic Materials",

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publisher = "Chinese Academy of Engineering Physics",

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TY - JOUR

T1 - Pretreatment of TNT red water by complex extraction

AU - Wang, Qian

AU - Zhang, Yan Wen

AU - Li, Ming

AU - Yin, Hong Quan

AU - Ma, Ru Yi

AU - Yang, Xin Tao

AU - Chen, Fu Xue

AU - Wu, Yu Kai

PY - 2016/7/25

Y1 - 2016/7/25

N2 - The TNT red water in the process of TNT production was pretreated by the complex extraction using trinoctylamine as a complex extraction agent. Seeing the removal rate of chemical oxygen demand (COD) and recycle use of extraction agent as goal, the effect of pH value, stirring speed, stirring time and the ratio of extraction agent and wastewater on the extraction efficiency was investigated. A study of intermittent experiment and continuous experiment was carried out. Results show that the extraction efficiency is the best when pH value is 0.9, stirring speed is 220 r·min-1, stirring time is 30 min. When the volume radio of the extraction agent and wastewater is 2.4, the COD removal rate of common TNT red water reaches 99.4% by realizing the control of content of COD in effluent water via changing the extraction phase ratio. The COD removal rate of military TNT red water reaches 99.0%. When the volume ratio of extraction agent and wastewater is 2.3-2.4, the extraction agent can be recycled.

AB - The TNT red water in the process of TNT production was pretreated by the complex extraction using trinoctylamine as a complex extraction agent. Seeing the removal rate of chemical oxygen demand (COD) and recycle use of extraction agent as goal, the effect of pH value, stirring speed, stirring time and the ratio of extraction agent and wastewater on the extraction efficiency was investigated. A study of intermittent experiment and continuous experiment was carried out. Results show that the extraction efficiency is the best when pH value is 0.9, stirring speed is 220 r·min-1, stirring time is 30 min. When the volume radio of the extraction agent and wastewater is 2.4, the COD removal rate of common TNT red water reaches 99.4% by realizing the control of content of COD in effluent water via changing the extraction phase ratio. The COD removal rate of military TNT red water reaches 99.0%. When the volume ratio of extraction agent and wastewater is 2.3-2.4, the extraction agent can be recycled.

KW - Complexation extraction

KW - Continuous experiment

KW - Intermittent experiment

KW - TNT red water

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U2 - 10.11943/j.issn.1006-9941.2016.07.014

DO - 10.11943/j.issn.1006-9941.2016.07.014

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SN - 1006-9941

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JO - Hanneng Cailiao/Chinese Journal of Energetic Materials

JF - Hanneng Cailiao/Chinese Journal of Energetic Materials

IS - 7

ER -

Pretreatment of TNT red water by complex extraction

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