化工学报2012，Vol.63Issue(5)：1558-1565,8.DOI:10.3969/j.issn.0438-1157.2012.05.034
高浓度制药废水毒性与SPAC反应器运行性能
Toxicity of high-sulfate pharmaceutical wastewater and performance of SPAC process
摘要
Abstract
The acute toxicity of typical pollutants (sulfate and sulfide) in high-sulfate pharmaceutical wastewater and effluent from SPAC reactor was tested using the 15 min half inhibitory concentration (IC50) to photobacterium. The results showed that the IC50 of sulfate and sulfide was 12077. 8, 78. 1 mg · L-1, respectively; the IC50 of raw pharmaceutical wastewater, effluents from SPAC reactor with influents of 6-fold and 3-fold dilution were 64.5, 44.7 and 78.9 times, respectively. The maximum volumetric COD, sulfate removal rates of SPAC reactor were 5. 76, 1. 83 kg · m-3 · d-1, COD and sulfate removal efficiency were 54.1% and 71.8% when the influent concentration was increased at a fixed HRT; the maximum volume COD, sulfate removal rates were 7. 52, 1. 90 kg · m-3 · d-1, COD and sulfate removal efficiency was 72.8% and 80.0% when the HRT was shortened at a fixed influent concentration. Low concentrations with high-flow rate made SAPC reactor run more efficiently. If the influent concentration exceeds inhibition concentration threshold , the pharmaceutical wastewater has a significant effect on performance of SPAC reactor. However, SPAC process showed a good ability to adapt the toxicity of high-sulfate pharmaceutical wastewater after a long term operation (about 3 months). The raw pharmaceutical wastewater should be diluted more than 5.13 folds to avoid the inhibition at the beginning of operation, while influent concentration could be increased to a dilution of 3. 32-fold to cut the operation cost in the later.关键词
高浓度硫酸盐制药废水/废水毒性/SPAC厌氧反应器/工艺性能/控毒策略Key words
high-sulfate pharmaceutical wastewater/ toxicity of waste water/ SPAC anaerobic reactor/ process performance/ operation strategies分类
资源环境引用本文复制引用
陆慧锋,郑平,张萌,张吉强,丁爽..高浓度制药废水毒性与SPAC反应器运行性能[J].化工学报,2012,63(5):1558-1565,8.基金项目
国家自然科学基金项目(31070110) （31070110）
国家高技术研究发展计划项目(2009ZZ06311) （2009ZZ06311）
浙江省自然科学基金项目(5100034). （5100034）
