摘要
实验应用移动床生物膜反应器处理人工配制的苯酚废水,研究了在不同的苯酚进水浓度和不同的水力停留时间时苯酚的去除效率,以及反应器对冲击负荷的承受能力.结果表明,在水力停留时间为24h、苯酚进水浓度从200mg·L-1逐渐上升至1400mg·L-1以及苯酚进水浓度1000mg·L-1、水力停留时间从32h逐渐降至16h的条件下,苯酚均能够被完全去除.对冲击负荷,MBBR具有较强的承受能力.由荧光原位杂交技术分析可知,酵母菌和真细菌是反应器中降解苯酚的主要微生物.说明移动床生物膜工艺能够高效地用于苯酚废水处理之中.
A moving bed biofilm reactor （MBBR） was applied in the treatment of artificial wastewater with high concentration of phenol. The results showed that phenol could be removed completely when the influent phenol concentration was in the range of 200 -1400 mg· L-I under HRT （hydraulic retention time） of 24 hours. HRT was an important parameter for effective removal of phenol. When HRT was longer than 16 hours, almost 100% phenol was removed for the artificial wastewater with 1000 rag＂ L-1 phenol concentration. Results also showed that MBBR exhibited excellent capability in tolerance to high concentration shocking. FISH analysis demonstrated that eubacteria and yeast were predominant in the sludge. Taken together, moving bed biofilm reactor has proven to be a good alternative for cost-efficient treatment of wastewater with high phenol concentration.
出处
《环境科学学报》
CAS
CSCD
北大核心
2013年第1期30-35,共6页
Acta Scientiae Circumstantiae
基金
国家高技术研究发展计划重点项目(No.2009AA06380)
水体污染控制与治理重大专项(No.2012ZX07202006)
辽宁省高等学校创新团队项目(No.LT2010024)~~
关键词
移动床生物膜反应器
苯酚去除
冲击负荷
荧光原位杂交技术
moving bed biofilm reactor （MBBR）
phenol removal
shock loading
Fluorescence in situ hybridization （FISH）
