本文關(guān)鍵詞：高電壓環(huán)境工程應(yīng)用研究關(guān)鍵技術(shù)問題分析及展望，由筆耕文化傳播整理發(fā)布。

高電壓環(huán)境工程應(yīng)用研究關(guān)鍵技術(shù)問題分析及展望

Analysis and Prospect on Key Technology of High-voltage Discharge for Environmental Engineering Study and Application

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15]

YAN Keping, LI Shuran, FENG Weiqiang, ZHENG Qinzhen, DU Yanyan, SHEN Xinjun, DAI Shaolong, KOU Yanqin, XU Yuzhen, WANG Shilong,HAN Ping, ZHU Anna, FENG Wenqiang, HUANG Yifa

[1]浙江大學(xué)生物質(zhì)化工教育部重點實驗室,杭州310028; [2]浙江大學(xué)化學(xué)工程與生物工程學(xué)系工業(yè)生態(tài)與環(huán)境研究所,杭州310028; [3]神華國能集團(tuán)有限公司,北京100033; [4]防化研究院第六研究所,北京102205

文章摘要：高壓（HV）放電技術(shù)通過施加高壓電場來產(chǎn)生大量自由電子和活性物質(zhì)，使之能控制和去除環(huán)境污染物。為此，介紹了高壓放電在脫硫、脫硝、除塵、揮發(fā)性有機氣體（VOCs）去除、臭氧發(fā)生、水處理和滅菌等方面的應(yīng)用。高壓放電脫硫脫硝采用流光電暈形式在氣相或異相中氧化氣態(tài)污染物，后者效率高于前者。隨其處理風(fēng)量的不斷增加，應(yīng)研發(fā)脈沖電源和交直流疊加（AC／DC）電源以提高反應(yīng)器能量密度和脫除能力。靜電除塵技術(shù)發(fā)展歷史長，其除塵能力進(jìn)一步的提高受到本體設(shè)計不合理、電源技術(shù)落后和2次揚塵等問題的限制。以電除塵指數(shù)取代傳統(tǒng)Deutsch公式，并指導(dǎo)本體設(shè)計選型和電源優(yōu)化，能有效提高除塵效率。高壓放電還可用于臭氧發(fā)生，短脈沖電源研發(fā)、氣源組分添加和裝置冷卻是其研發(fā)重點。高壓放電能處理VOCs和污染廢水，前者以放電結(jié)合催化為主，后者則兼有液下和沿面放電，，目前仍需提高能量利用效率。放電除了能殺滅微生物外，還能在保持活性的前提下收集微生物。高壓放電技術(shù)仍需向工業(yè)示范和聯(lián)用發(fā)展。

Abstr：High-voltage （HV） discharges induce high-intensity electrical field that generates large quantities of electrons and radicals. Hence they are employed to control and remove pollutants. In this paper, we introduce several environmental applications of high-voltage discharge, such as removal of SO2, NOx, particles, VOCs and pollutants in water, ozone gen- eration, sterilization and collection of micro-organism. For desulfuration and denitration using streamer corona discharges, heterogeneous oxidation of S（IV） is quicker than homogeneous oxidation, and increasing AC/DC, pulse power and energy density is the key for improving the removal efficiency. Electrostatic precipitator （ESP） has been developed for a long time, yet its improvement is impeded due to the inadequate development of device design and power technology, and reentrainment. Using ESP index instead of Deutsch Equation to guide ESP sizing and power optimization is conducive to improve ESP efficiency. When using HV discharge to produce ozone, the emphasis is on short-pulse power supply, addi- tives and cooling. I-IV discharge is also employed to treat VOCs and waste water in various structures. The former one usually combines discharge with catalysis, while the latter includes discharge under or over liquid surface. However, both of them need to be improved in energy efficiency. HV discharge could deactivate micro-organism through radicals, UV or electrical field, yet it could also be used to collect micro-organisms while keeping their high activities. Nevertheless for environmental applications, the non-thermal plasma technology needs further development in pilot demonstration and in-tegrated process.

文章關(guān)鍵詞：

Keyword：:non-thermal plasma desulfurization denitration ESP VOCs removal ozone generation water treatment micro-organism sterilization micro-organism collection

課題項目：國家高技術(shù)研究發(fā)展計劃（863計劃）（SS2013AA0616;2013AA0651001-1;2009AA064101）;國家自然科學(xué)基金（21276232）.

  本文關(guān)鍵詞：高電壓環(huán)境工程應(yīng)用研究關(guān)鍵技術(shù)問題分析及展望，由筆耕文化傳播整理發(fā)布。