| 硫自养填充床反应器降解水中高浓度高氯酸盐的特性及菌群分析 |
| 摘要点击 2174 全文点击 719 投稿时间：2016-07-02 修订日期：2016-08-18 |
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| 中文关键词 硫自养 高氯酸盐 水力停留时间(HRT) 氧化还原电位(ORP) 菌群分析 |
| 英文关键词 sulfur autotrophic perchlorate hydraulic retention time (HRT) oxidation reduction potential (ORP) consortium structure analysis |
| 作者 | 单位 | E-mail | | 张超 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018 | 15690327278@163.com | | 陶华强 | 天津城建大学环境与市政工程学院, 天津市水质科学与技术重点实验室, 天津 300384 | | | 宋圆圆 | 天津城建大学环境与市政工程学院, 天津市水质科学与技术重点实验室, 天津 300384 | | | 逯彩彩 | 天津城建大学环境与市政工程学院, 天津市水质科学与技术重点实验室, 天津 300384 | | | 郭延凯 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018 | | | 廉静 | 河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018 | | | 郭建博 | 天津城建大学环境与市政工程学院, 天津市水质科学与技术重点实验室, 天津 300384 | jianbguo@163.com |
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| 中文摘要 |
| 采用硫自养填充床反应器处理模拟高浓度高氯酸盐（ClO4-）污染水，考察不同进水ClO4-浓度及水力停留时间（HRT）下的ClO4-降解特性.结果表明，HRT为12 h时，进水ClO4-浓度由50 mg·L-1增加到194 mg·L-1时，ClO4-能被完全降解；进水ClO4-浓度为194 mg·L-1时，HRT由12 h减少至4 h时，ClO4-去除率仅为74%；SO42-的产量随着进水ClO4-浓度与HRT的增加而增加；进水pH和碱度（以CaCO3计）分别为8.0和500 mg·L-1，出水pH和碱度（以CaCO3计）分别为6.7和100 mg·L-1；反应器底部氧化还原电位（ORP）稳定在-380~-330 mV，反应器上部氧化还原电位（ORP）稳定在-300~-250 mV.分子生物学分析表明，反应器内的菌群结构随高度的变化而变化，硫氧化菌Sulfurovum随反应器高度的增加而减少，由底部57.78%减少到上部的32.19%，同时硫化氢氧化菌Hydrogenophilaceae随反应器高度的增加而增加，由底部4.35%增加到上部的22.24%. |
| 英文摘要 |
| The effects of perchlorate concentration and hydraulic retention time (HRT) on perchlorate reduction characteristics were investigated in a sulfur-based perchlorate reduction reactor.The results showed that the perchlorate was completely removed at HRT of 12 h and the influent perchlorate concentration ranged from 50 mg·L-1 to 194 mg·L-1;The perchlorate removal efficiency was 74% at HRT of 4 h and the influent perchlorate concentration was 194 mg·L-1;The yield of sulfate was increased by increasing the influent perchlorate concentration and HRT;The influent pH and alkalinity was approximately 8.0 and 500 mg·L-1 CaCO3,and the effluent pH and alkalinity was approximately 6.7 and 100 mg·L-1 CaCO3,respectively;The oxidation reduction potential (ORP) ranged from -380 mV to -330 mV at the bottom of the reactor,however,ORP ranged from -300 mV to -250 mV at the top of the reactor;The molecular biological analysis showed that the microbial consortium structure was different along the flow path in the reactor,Sulfurovum which is known to oxidize sulfur was decreased from 57.78% to 32.19% and Hydrogenophilaceae which is known to oxidize hydrogen sulfide was increased from 4.35% to 22.24%. |
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