中国环境科学
 
 
中国环境科学  2019, Vol. 39 Issue (4): 1596-1601    DOI:
水污染与控制 最新目录| 下期目录| 过刊浏览| 高级检索 |
HLB-MR反应器直接处理城市污水及回收有机物
万立国1,2, 林巧1, 张文华1,2, 任志敏1,2, 龙北生1,2, 熊玲1
1. 长春工程学院水利与环境工程学院, 吉林 长春 130012;
2. 长春工程学院, 吉林省城市污水处理重点实验室, 吉林 长春 130012
Direct treatment and organics recovery of municipal wastewater via high loaded bioflocculation membrane reactor
WAN Li-guo1,2, LIN Qiao1, ZHANG Wen-hua1,2, REN Zhi-min1,2, LONG Bei-sheng1,2, XIONG Ling1
1. School of Water Conservancy & Environment Engineering, Changchun Institute of Technology, Changchun 130012, China;
2. Jilin Provincial Key Laboratory of Municipal Wastewater Treatment, Changchun Institute of Technology, Changchun 130012, China

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摘要 

采用中空纤维超滤膜组件构建了高负荷生物絮凝-膜反应器(HLB-MR),对其直接处理城市污水及回收有机物进行了研究.结果表明:当水力停留时间(HRT)为1.0h,固体停留时间(SRT)为0.2d时,该工艺可回收进水总COD的60.8%,据估算约有39%的进水总COD可通过中温厌氧消化转化为甲烷能源回收,有机物的甲烷转化率为活性污泥法剩余污泥的2倍以上,能实现污水中有机物的高效回收和利用;经过有机物回收后膜出水的COD能稳定保持在30mg/L左右,且出水中氮、磷营养物保有值均较高又不含固体杂质和病原体,可将其用作灌溉用水,实现水资源回用;SRT分别为0.2,0.6,1.0d时,反应器对胶体COD絮凝效率分别为81.9%、95.1%、96.8%,絮凝效率越高,膜污染越轻,良好的生物絮凝效果可有效减轻膜污染,保证工艺的稳定运行.

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万立国
林巧
张文华
任志敏
龙北生
熊玲
关键词 生物絮凝膜反应器有机物回收城市污水    
Abstract

A high loaded bioflocculation membrane reactor (HLB-MR) was constructed using a hollow fiber ultrafiltration membrane module, and its performance for direct treatment and organics recovery of municipal wastewater was investigated. When the HLB-MR operated at the solid retention time (SRT) of 0.2d and the hydraulic retention time (HRT) of 1.0h, this process could recover 60.8% of influent total COD (CODTO). It was estimated that about 39% of influent CODTO could be converted to methane for energy recovery by mesophilic anerobic digestion of concentrate, and the methane conversion rate of organics was twice more than that of the residual sludge in the activated sludge process. Thus, HLB-MR could achieve efficient organics recovery and utilization from municipal wastewater. The COD of permeate water from HLB-MR was stable at around 30mg/L, while phosphorus and nitrogen were largely conserved. Since the permeate water was free from solids and pathogens, which could be used as an excellent source of irrigation water for reuse. When HLB-MR operated under short SRTs of 0.2, 0.6 and 1.0d, the flocculation efficiency of colloidal COD could reach 81.9%, 95.1% and 96.8%, respectively. The higher flocculation efficiency will lead to the lesser membrane fouling, so that the significant bioflocculation can effectively reduce membrane fouling and ensure stable operation of HLB-MR.

Key wordsbioflocculation    membrane reactor    organics recovery    municipal wastewater   
收稿日期: 2018-09-20     
PACS: X703.1  
基金资助:

吉林省自然科学基金资助项目(20180101317JC);国家科技重大专项(2012ZX07202-009-01);吉林省重点科技攻关项目(20160204006SF);吉林省省级产业创新专项资金项目(2019C055,2016C093);长春工程学院种子基金项目(320180027)

通讯作者: 张文华,教授,wenhuazhang1029@163.com     E-mail: wenhuazhang1029@163.com
作者简介: 万立国(1982-),男,湖北天门人,副教授,硕士,主要从事污水处理及其资源化研究.发表论文25篇.
引用本文:   
万立国, 林巧, 张文华, 任志敏, 龙北生, 熊玲. HLB-MR反应器直接处理城市污水及回收有机物[J]. 中国环境科学, 2019, 39(4): 1596-1601. WAN Li-guo, LIN Qiao, ZHANG Wen-hua, REN Zhi-min, LONG Bei-sheng, XIONG Ling. Direct treatment and organics recovery of municipal wastewater via high loaded bioflocculation membrane reactor. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(4): 1596-1601.
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