Application of bioaugmentation to improve the activated sludge system into the contact oxidation system treating petrochemical wastewater.
Application of bioaugmentation to improve the activated sludge system into the contact oxidation system treating petrochemical wastewater.
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DOI：
10.1016/j.biortech.2008.06.066
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发表时间：
2009
影响因子：
11.4
通讯作者：
F. Ma;Jing-bo Guo;Li-jun Zhao;Chein‐Chi Chang;Di Cui
中科院分区：
文献类型：
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作者：
F. Ma;Jing-bo Guo;Li-jun Zhao;Chein‐Chi Chang;Di Cui
采用生物强化技术，将规模较大的活性污泥系统(S2)升级为接触氧化系统(S1)。结果表明，当石化废水的化学需氧量和氨氮浓度分别为320~530 mg/L和8~25 mg/L时，当低于80 mg/L和10 mg/L时，生物强化处理(S1)仅需20天。然而，非生物强化的常规活性污泥法(S2)需要30天才能达到类似的出水水质。当有机负荷(OLR)从0.6增加到0.9，最终达到1.10 kg COD/m3d时，S1表现出较强的抗冲击负荷能力，与S2所需的7天相比，S1在3天后恢复。本文的研究结果表明，由于生物强化专业联合体的存在，生物强化应用于工艺升级是可行和有效的。
In this paper, bioaugmentation was applied to upgrade a full-scale activated sludge system (S2) into a contact oxidation system (S1). Results showed that when chemical oxygen demand (COD) and ammonia nitrogen (NH4+-N) concentration of the petrochemical wastewater were 320–530mg/L and 8–25mg/L, respectively, the bioaugmented process (S1) took only 20 days when they were below 80mg/L and 10mg/L, respectively. However, the unbioaugmented conventional activated sludge process (S2) spent 30 days to reach the similar effluent quality. As the organic loading rate (OLR) increased from 0.6 to 0.9 and finally up to 1.10kg COD/m3d, S1 showed strong resistance to shock loadings and restored after three days compared to the seven days required by S2. Based on the results of this paper, it shows that bioaugementation application is feasible and efficient for the process upgrade due to the availability of the bioaugmented specialized consortia.