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邹然,朱葛夫,张净瑞,潘小芳,刘超翔,刘琳,黄栩.厌氧折流板反应器处理土霉素废水的潜能和运行特性研究[J].环境科学学报,2014,34(11):2746-2753

基金项目：宁波市自然科学基金(No.2013A610177, 2013A610173);国家自然科学基金(No.21276248,50808152,21477122);中国科学院知识创新工程重要方向项目(No.KZCX2-EW-402-02);福建省科技计划重点项目(No.2012Y0069);国家科技支撑计划项目(No.2012BAC25B04);厦门市科技计划项目(No.3502Z20120012)

摘要：采用固定水力停留时间(HRT)、逐步提高进水土霉素(OTC)浓度的方式,考察了四格室厌氧折流板反应器(ABR)处理土霉素废水的潜能和运行特性,以期为工程实践提供理论指导和技术参考.结果表明,ABR在pH=7.00~7.50、(35±1) ℃、HRT=24 h、进水初始COD为2000.0 mg·L^-1的条件下启动,经49 d的运行,在进水COD为4500.0 mg·L^-1、OTC为0.1 g·m^-3·d^-1、pH=7.20条件下达到了稳定状态,系统COD去除效率稳定在95.0%左右.在维持进水COD和HRT不变的条件下,通过增加进水OTC浓度的方式将OTC的负荷分阶段提高为1.0、3.3和5.0 g·m^-3·d^-1的过程中,ABR对OTC的去除率略有下降,从59.9%降低到了57.7%,而对COD的去除率则始终保持在95%上下.可见,ABR处理土霉素废水具有有效性和运行稳定性,是值得深入研发的土霉素废水处理工艺.

Abstract：In order to provide theoretical guidance and technical reference for engineering practices, a four-compartment anaerobic baffled reactor (ABR) was studied to treat high concentration wastewater under different loads of oxytetracycline (OTC). The start-up condition period was as follows, pH of 7.00~7.50, temperature of (35±1) ℃, hydraulic retention time (HRT) of 24 h, and the COD influent concentration of 2000.0 mg·L^-1. After a 49 day start-up period, the reactor was stabilized with an influent COD concentration of 4500.0 mg·L^-1, OTC load of 0.1 g·m^-3·d^-1, pH value of 7.20, and COD removal rate of 95%. Then the load of OTC increased sequentially between 1.0, 3.3 and 5.0 g·m^-3·d^-1, while the influent COD concentration and HRT remained constant. The removal rate of OTC decreased from 59.9% to 57.7%, however, the COD removal rate remained unchanged at 95%. Results suggested that ABR is worthy of further study in oxytetracycline wastewater treatment.

Key words：anaerobic baffled reactor (ABR) oxytetracycline (OTC) wastewater methane fermentation