Lan Hui-Xia, Chen Yuan-Cai, Chen Zhong-Hao, Chen Rong
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
J Environ Sci (China). 2005;17(3):506-10.
Cultivation of aerobic granular sludge for pentachlorophenol (PCP) degradation under microaerobic condition (DO concentration was controlled at 0.2-0.7 mg/L) was studied in this paper. Anaerobic granules were selected as inoculum. The changes of appearance were observed and the variations of SVI, VSS/TSS, PN/PS and the size of sludge were measured during cultivating. The capabilities for degradation of PCP, AOX and COD(Cr) were also studied. Observations on mature granules were carried out by scanning electron microscope, and the results indicated bacillus was dominant on the surface of granules while in the inner of granules both bacillus and coccus were the dominant microorganisms. K, Na, Fe, Ca, Mg, Ni, Co, Mn, Cu and Zn were detected in the granules by element analysis.
本文研究了在微氧条件（溶解氧浓度控制在0.2 - 0.7mg/L）下培养好氧颗粒污泥以降解五氯苯酚（PCP）的过程。选用厌氧颗粒作为接种物。在培养过程中观察颗粒外观的变化，并测定污泥体积指数（SVI）、挥发性固体与总固体之比（VSS/TSS）、蛋白质与多糖之比（PN/PS）以及污泥粒径的变化。同时研究了颗粒污泥对PCP、可吸附有机卤化物（AOX）和化学需氧量（COD(Cr)）的降解能力。通过扫描电子显微镜对成熟颗粒进行观察，结果表明颗粒表面以杆菌为主，而颗粒内部杆菌和球菌均为优势微生物。通过元素分析检测到颗粒中含有钾（K）、钠（Na）、铁（Fe）、钙（Ca）、镁（Mg）、镍（Ni）、钴（Co）、锰（Mn）、铜（Cu）和锌（Zn）。
