CAJ | 학술논문

利用硫酸盐还原菌（SRB）、零价铁（ZVI）和SRB＋ZVI三个不同的反应体系设计血清瓶序批式实验和连续流动柱式反应器实验对模拟地浸采铀废水进行处理。在此基础上探讨ZVI对于硫酸盐生物还原法处理废水的强化作用。厌氧序批式实验结果表明,SRB和ZVI对铀的固定具有明显的协同增强作用,当反应时间t=2、4h时,SRB＋ZVI联合体系的铀去除效率比两对照组之和仍分别高出29.9%和13.4%。柱式反应器实验结果显示,SRB＋ZVI复合反应器比未充填铁粉的单一SRB生物反应器在碱化废水pH值、提高脱硫效率和固定铀的能力方面效果更佳。
이용류산염환원균（SRB）、령개철（ZVI）화SRB＋ZVI삼개불동적반응체계설계혈청병서비식실험화련속류동주식반응기실험대모의지침채유폐수진행처리。재차기출상탐토ZVI대우류산염생물환원법처리폐수적강화작용。염양서비식실험결과표명,SRB화ZVI대유적고정구유명현적협동증강작용,당반응시간t=2、4h시,SRB＋ZVI연합체계적유거제효솔비량대조조지화잉분별고출29.9%화13.4%。주식반응기실험결과현시,SRB＋ZVI복합반응기비미충전철분적단일SRB생물반응기재감화폐수pH치、제고탈류효솔화고정유적능력방면효과경가。
Batch and continuous flow column experiments based on three different systems,namely,sulfate reducing bacteria（SRB）,zero-valent iron（ZVI） and SRB＋ZVI,were conducted to treat simulated U（VI）-containing wastewater from in situ leach uranium mining.On the basis of this,whether ZVI can augment biological treatment of wastewater was also investigated.Anaerobic batch tests suggest that the combination of ZVI with SRB can enhance the removal of U（VI） synergistically.The removal efficeiency of U（VI） was obviously higher in the SRB--ZVI combining reactor than the total rate of two control groups with a difference value of 13.4% for t= 2h and 29. 9% for t= 4h. Collumn experiments indicate that the integrated reactor filled with both iron filings and SRB biofilms was more effective than the SRB bioreactor in the aspect of wastewater basification, desulfurization and U（VI） fixation.