研究报告
刘永红,党康,王宁,李耀中,李妙婕,王毅博,张豪,蔡经栋.基于新型载体AMC/UASB-SCMBBR生物工艺处理印染废水的中试研究[J].环境科学学报,2019,39(10):3350-3355
基于新型载体AMC/UASB-SCMBBR生物工艺处理印染废水的中试研究
- Pilot study on dyeing wastewater treatment by using AMC/UASB-SCMBBR biological process based on novel carriers
- 基金项目：国家自然科学基金（No.21176197）；陕西省科技统筹创新工程计划项目（No.2011KTZB03-03-01）；陕西省科技厅工业攻关项目（No.2008k07-14）；陕西省教育厅专项科学研究计划项目（No.19JK0370）；石狮市科技公共服务平台产学研项目（No.003）
- 作者
- 单位
- 刘永红
- 西安工程大学环境与化学工程学院, 西安 710048
- 党康
- 西安工程大学环境与化学工程学院, 西安 710048
- 王宁
- 西安工程大学环境与化学工程学院, 西安 710048
- 李耀中
- 西安工程大学环境与化学工程学院, 西安 710048
- 李妙婕
- 西安工程大学环境与化学工程学院, 西安 710048
- 王毅博
- 西安工程大学环境与化学工程学院, 西安 710048
- 张豪
- 陕西陆环环保工程有限公司, 西安 710002
- 蔡经栋
- 石狮市蓝灵顿印染有限公司, 泉州 362700
- 摘要：针对泉州某印染厂实际废水（COD 800~1800 mg·L-1，NH4+-N 20~50 mg·L-1，pH=8~14），以两种新型载体分别作为厌氧与好氧单元中微生物固定化载体，考察了中试规模上流式厌氧污泥床反应器（UASB）与柔性悬浮载体移动床生物膜反应器（SCMBBR）组合工艺对该废水的处理效果.4个月的连续试验结果表明：①经过30 d前期调试运行该工艺系统成功启动，处理量为1.5~2.2 m3·d-1时，AMC/UASB和SCMBBR反应器对COD的去除率分别达到22%和50%，AMC/UASB反应器出现明显的产气现象，SCMBBR中载体挂膜状况良好；②启动完成后经过90 d的连续运行，当AMC/UASB和SCMBBR反应器水力停留时间分别为10.7 h和8.8 h，废水处理量为5 m3·d-1时，稳定运行阶段整个工艺废水COD去除率达到78%，出水氨氮平均浓度为3.4 mg·L-1；此外，整体工艺色度去除率达到65%，其中，厌氧段色度去除率达到50%左右；③通过分析计算，整个系统污泥减量达到67.7%~76.6%，该生物组合工艺具有明显的污泥减量效果.
- Abstract：Two kinds of novel carriers were used as microbial immobilization media in a combined up-flow anaerobic sludge bed (UASB) and aerobic moving bed biofilm reactor (SCMBBR) pilot-scale process to treat wastewater (COD 800~1800 mg·L-1, NH4+-N 20~50 mg·L-1, pH=8~14) from a printing and dyeing plant in Quanzhou. After nearly 4 months of continuous operation, it is found that:①The process system was successfully started up after 30 days. When the loading was 1.5~2.2 m3·d-1, the removal rates of COD in AMC/UASB and SCMBBR reactors were 22% and 50%, respectively. The gas production in AMC/UASB reactor was obvious, and the biofilm on carriers in the SCMBBR reactor were well developed. ②After 90 days of operation, when the hydraulic retention time of AMC/UASB and SCMBBR were 10.7 h and 8.8 h respectively, with the VLR at 5 m3·d-1, the removal rate of COD achieved 78%, and the average concentration of ammonia nitrogen in the effluent was around 3.4 mg·L-1. In addition, the removal rate of chroma by the combined process was 65%, while the anaerobic color removal rate was about 50%. ③According to the analysis, the residual sludge reduction rate of the combined process reached 67.6%~76.6%, indicating the composite process had a good performance on sludge reduction.
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