| “异养-硫自养”组合工艺去除高浓度高氯酸盐特性 |
| 摘要点击 1705 全文点击 666 投稿时间：2018-04-15 修订日期：2018-05-30 |
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| 中文关键词 异养-硫自养 高氯酸盐 硫酸盐 碱度 生物量 |
| 英文关键词 heterotrophic-sulfur autotrophic perchlorate sulfate alkalinity biomass |
| 作者 | 单位 | E-mail | | 刘颖男 | 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 | lyn673800825@126.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 | | | 张春青 | 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 | | | 韩懿 | 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 | | | 李海波 | 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 |
| 通过运行双室的异养-硫自养联合反应器（下部为异养区、上部为自养区），去除高浓度高氯酸盐（ClO4-）废水.考察不同进水碳氯比（C/Cl）和ClO4-浓度条件下，ClO4-的降解特性及出水硫酸盐（SO42-）浓度.结果表明，通过调节进水C/Cl比由2~1，反应器在36 d快速成功启动；进水ClO4-浓度由250 mg·L-1提升至400 mg·L-1时，微生物对高浓度ClO4-表现出良好的耐受性，ClO4-的去除率始终稳定在95%以上；通过调整C/Cl比至1.2，可减少自养区ClO4-负荷，使出水SO42-浓度降至250 mg·L-1以下.此外，本研究证实了细菌分泌的溶解性有机物中色氨酸和酪氨酸是造成自养区出水TOC升高的原因.由于采用异养-硫自养联合工艺，控制碳源的投加，从而减少了异养区污泥的产量；同时，异养区产生碱度可以平衡自养区产生的酸度，减少了自养过程中碱度的投加；异养区产生碳酸盐也可以作为自养区的碳源，实现了异养区和自养区功能上的"互补". |
| 英文摘要 |
| The heterotrophic-autotrophic reactor including two chambers, that is, the lower part of the heterotrophic zone and the upper part of the autotrophic zone, was used to remove highly concentrated perchlorate (ClO4-) wastewater. The reduction characteristics of ClO4- and the effluent sulfur (SO42-) concentration were investigated using different influent ClO4- concentrations and C/Cl ratios. By adjusting the influent C/Cl ratio from 2 to 1, the reactor was started up successfully within 36 d. The microorganisms tolerated the high concentration of ClO4- (250-400 mg·L-1) and the ClO4- removal efficiency was higher than 95%. By adjusting the C/Cl ratio to 1.2, the ClO4- load in the autotrophic zone was reduced and the SO42- concentration in the effluent was controlled below 250 mg·L-1. The result show that tryptophan and tyrosine materials in soluble microbial products led to the TOC increase in the effluent of the autotrophic zone. The sludge yield was reduced because of heterotrophic and autotrophic processes. The alkalinity produced by the heterotrophic process was used as carbon source for the autotrophic process and to neutralize the acidity produced by the autotrophic process, representing the complementary function and avoiding the addition of alkalinity in the autotrophic process. |
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