Long Bei, Yang Chang-zhu, Pu Wen-hong, Yang Jia-kuan, Jiang Guo-sheng, Dan Jing-feng, Zhang Jing, Zhang Li
College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, China E-mail:
J Water Health. 2015 Sep;13(3):746-57. doi: 10.2166/wh.2015.247.
Mature aerobic granular sludge (AGS) was inoculated for the start-up of a pilot-scale sequencing batch reactor for the treatment of high concentration solvent recovery raffinate (SRR). The proportion of simulated wastewater (SW) (w/w) in the influent gradually decreased to zero during the operation, while volume of SRR gradually increased from zero to 10.84 L. AGS was successfully domesticated after 48 days, which maintained its structure during the operation. The domesticated AGS was orange, irregular, smooth and compact. Sludge volume index (SVI), SV30/SV5, mixed liquor volatile suspended solids/mixed liquor suspended solids (MLVSS/MLSS), extracellular polymeric substances, proteins/polysaccharides, average particle size, granulation rate, specific oxygen utilization rates (SOUR)H and (SOUR)N of AGS were about 38 mL/g, 0.97, 0.52, 39.73 mg/g MLVSS, 1.17, 1.51 mm, 96.66%, 47.40 mg O2/h g volatile suspended solids (VSS) and 8.96 mg O2/h g VSS, respectively. Good removal effect was achieved by the reactor. Finally, the removal rates of chemical oxygen demand (COD), total inorganic nitrogen (TIN), NH4+-N and total phosphorus (TP) were more than 98%, 96%, 97% and 97%, respectively. The result indicated gradually increasing the proportion of real wastewater in influent was a useful domestication method, and the feasibility of AGS for treatment of high C/N ratio industrial wastewater.
接种成熟的好氧颗粒污泥（AGS）用于启动中试规模的序批式反应器，以处理高浓度溶剂回收残液（SRR）。在运行过程中，进水模拟废水（SW）的比例（w/w）逐渐降至零，而SRR的体积从零逐渐增加到10.84 L。48天后成功驯化了AGS，其在运行过程中保持了结构。驯化后的AGS呈橙色，不规则，表面光滑且紧实。AGS的污泥体积指数（SVI）、SV30/SV5、混合液挥发性悬浮固体/混合液悬浮固体（MLVSS/MLSS）、胞外聚合物、蛋白质/多糖、平均粒径、颗粒化率、特定氧利用率（SOUR）H和（SOUR）N分别约为38 mL/g、0.97、0.52、39.73 mg/g MLVSS、1.17、1.51 mm、96.66%、47.40 mg O2/h g挥发性悬浮固体（VSS）和8.96 mg O2/h g VSS。该反应器取得了良好的去除效果。最终，化学需氧量（COD）、总无机氮（TIN）、NH4+-N和总磷（TP）的去除率分别超过98%、96%、97%和97%。结果表明，逐渐提高进水实际废水的比例是一种有效的驯化方法，以及AGS用于处理高C/N比工业废水的可行性。
