Pretreatment of micro-polluted surface water with a biologically enhanced PAC-diatomite dynamic membrane reactor to produce drinking water
文献类型：期刊论文
| 作者 | Chu, Huaqiang ; Zhang, Yalei ; Dong, Bingzhi ; Zhou, Xuefei ; Cao, Dawen ; Qiang, Zhimin ; Yu, Zhenxun ; Wang, Hongwu |
| 刊名 | Engineering; Water Resources
 |
| 出版日期 | 2012 |
| 卷号 | 40期号:1页码:84-91 |
| 关键词 | Biologically enhanced PAC-diatomite dynamic membrane reactor Micropolluted surface water Filtration Biodegradation Air backwash Drinking water treatment |
| ISSN号 | 1944-3994 |
| 中文摘要 | This study developed a biologically enhanced powder activated carbon (PAC) diatomite dynamic membrane reactor (BPDDMR) to pretreat micro-polluted surface water for drinking water production at lab-scale in continuous mode. In the start-up operation period, the BPDDMR required approximately 26 and 31 d to achieve stable removal efficiency of CODMn and NH3-N, respectively. Turbidity was always below 0.5 NTU throughout the operation experiment in the permeate flux range of 21-54 l m(-2) h(-1). The BPDDMR could effectively remove the hydrophilic portion of dissolved organic materials (DOM) present in the raw water. The temperature affected pollutant removal (especially CODMn), which was mainly ascribed to microbial degradation and was also enhanced by PAC and diatomite adsorption. During the precoating period, the stainless steel support mesh (aperture 74 mu m) first intercepted the large PAC (50-100 mu m), and then diatomite particles (5-20 mu m) were intercepted to form a two-layer structure of the biologically enhanced PAC diatomite dynamic membrane (BPDDM). It was found that as the air pressure increased, the backwash efficiency improved and had less residual in the cake layer. Air backwash with a pressure of 200-250 kPa completely cleaned the BPDDM surface. |
| WOS记录号 | WOS:000302791400012 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8162]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Chu, Huaqiang,Zhang, Yalei,Dong, Bingzhi,et al. Pretreatment of micro-polluted surface water with a biologically enhanced PAC-diatomite dynamic membrane reactor to produce drinking water[J]. Engineering; Water Resources,2012,40(1):84-91. |
| APA | Chu, Huaqiang.,Zhang, Yalei.,Dong, Bingzhi.,Zhou, Xuefei.,Cao, Dawen.,...&Wang, Hongwu.(2012).Pretreatment of micro-polluted surface water with a biologically enhanced PAC-diatomite dynamic membrane reactor to produce drinking water.Engineering; Water Resources,40(1),84-91. |
| MLA | Chu, Huaqiang,et al."Pretreatment of micro-polluted surface water with a biologically enhanced PAC-diatomite dynamic membrane reactor to produce drinking water".Engineering; Water Resources 40.1(2012):84-91. |
入库方式： OAI收割
来源：生态环境研究中心
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