等离子体修复对硝基酚污染土壤影响因素研究  

Study on influencing factors of plasma remediation of p-nitrophenol contaminated soil

作　　者：孟垚 魏小娜[2] 吴迪[1] 彭湃[1] 李彦成 杨立杰 李婷婷[1] MENG Yao;WEI Xiaona;WU Di;PENG Pai;LI Yancheng;YANG Lijie;LI Tingting(Shenyang Research Institute of Chemical Industry,Shenyang Liaoning 110021;School of Environmental and Safety Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001)

机构地区：[1]沈阳化工研究院有限公司,辽宁沈阳110021 [2]辽宁石油化工大学环境与安全工程学院,辽宁抚顺113001

出　　处：《环境污染与防治》2021年第6期674-678,共5页Environmental Pollution & Control

基　　金：国家自然科学基金青年科学基金项目(No.41701563);辽宁石油化工大学引进人才科研启动基金(No.2016XJJ-049)。

摘　　要：使用自主研发的针板式高压放电等离子体装置处理对硝基酚(PNP)污染土壤,考察了放电电压、土壤含水率、土层厚度、污染物浓度、活化剂种类及其添加量在不同放电时间下对污染物降解效果的影响。结果表明,当土壤中PNP初始质量浓度为1024 mg/kg时,自然风干(含水率1%)土壤设定放电电压5 kV、土层厚度2 mm,添加10%(质量分数)1.0 mol/L的过硫酸钠溶液,放电30 min基本可完全降解PNP。此研究可为今后高压放电等离子体技术体系的建立及设备研发提供基础。The effects of discharge voltage,soil moisture content,soil thickness,pollutant concentration,activator kinds and their dosage on the degradation of p-nitrophenol(PNP)in contaminated soil were investigated by a self-developed needle plate high-voltage discharge plasma device.The results showed that when the initial concentration of PNP in soil was 1024 mg/kg,the conditions of complete degradation of PNP in natural air drying soil(moisture content 1%)were as follows:discharge voltage 5 kV,soil thickness 2 mm,adding 10%(mass fraction)1.0 mol/L sodium persulfate solution and discharging time 30 min.The determination of the parameters provided a research basis for the establishment of high-voltage discharge plasma technology system and equipment development in the future.

关 键 词：等离子体 针板式高压放电 影响因素 对硝基酚 土壤 

分 类 号：X53[环境科学与工程—环境工程]