| 改性砂高速过滤技术用于污水再生回用的研究 |
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| 引用本文： | 贾仁勇,孙力平,齐兆涛,吕建波,衣雪松.改性砂高速过滤技术用于污水再生回用的研究[J].中国给水排水,2009,25(3). |
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| 作者姓名： | 贾仁勇 孙力平 齐兆涛 吕建波 衣雪松 |
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| 作者单位： | 1. 同济大学污染控制与资源化研究国家重点实验室,上海,200092;天津城市建设学院环境与市政工程系,天津,300384
2. 天津城市建设学院环境与市政工程系,天津,300384 |
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| 基金项目： | 天津市重大科技攻关项目 |
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| 摘 要： | 采用SJ材料作为改性剂对石英砂滤料进行改性,经测定,其表面的物理化学性能优于石英砂.将改性砂应用于煤砂双层滤料高速过滤工艺,并处理某污水厂的二级出水,其出水的平均浊度、COD、UV254、PO43--P分别为1.23 NTU、27.4 mg/L、0.133 5 cm-1、0.42 mg/L,对各项指标的去除率均高于石英砂滤料,且完全符合GB/T 18920-2002标准中的城市杂用水水质要求.研究发现,高速过滤工艺应该以自然条件下的最大滤速为起始滤速;污染物积累和滤层负压导致水中溶解气体的析出会减小有效过水断面面积,这是引起滤速衰减的主要原因.
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| 关 键 词： | 改性砂 微絮凝 高速过滤 再生回用 |
Application of Modified Sand High-speed Filtration Technology to Reclaimed Wastewater Reuse |
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| JIA Ren-yong,SUN Li-ping,QI Zhao-tao,LU Jian-bo,YI Xue-song.Application of Modified Sand High-speed Filtration Technology to Reclaimed Wastewater Reuse[J].China Water & Wastewater,2009,25(3). |
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| Authors: | JIA Ren-yong SUN Li-ping QI Zhao-tao LU Jian-bo YI Xue-song |
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| Affiliation: | 1.State Key Laboratory of Pollution Control and Resources Reuse;Tongji University;Shanghai 200092;China;2.Department of Environmental and Municipal Engineering;Tianjin Institute of Urban Construction;Tianjin 300384;China |
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| Abstract: | SJ material gained from industrial waste was applied to modify quartz sand filter media.The physical and chemical properties of the modified sand were determined,being better than those of natural quartz sand.Anthracite and the modified sand were used as filter media of high-speed filtration process to treat the secondary effluent from a WWTP.The average turbidity,COD,UV254,PO3-4-P of the filtration effluent are 1.23 NTU,27.4 mg/L,0.133 5 cm-1 and 0.42 mg/L respectively.The removal rates of pollutants by an... |
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| Keywords: | modified sand micro-flocculation high-speed filtration reclamation and reuse |
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