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主管单位 中华人民共和国
工业和信息化部
主办单位 哈尔滨工业大学 主编 冷劲松 国际刊号ISSN 0367-6234 国内刊号CN 23-1235/T

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引用本文:黄乔津,郭远庆,梁恒,李圭白.连续过滤-超滤工艺处理松花江水中试研究[J].哈尔滨工业大学学报,2019,51(2):8-15.DOI:10.11918/j.issn.03676234.201801138
HUANG Qiaojin,GUO Yuanqing,LIANG Heng,LI Guibai.A pilot study of continuous filtration-ultrafiltration process for Songhua River water treatment[J].Journal of Harbin Institute of Technology,2019,51(2):8-15.DOI:10.11918/j.issn.03676234.201801138
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连续过滤-超滤工艺处理松花江水中试研究
黄乔津,郭远庆,梁恒,李圭白
(城市水资源与水环境国家重点实验室(哈尔滨工业大学),哈尔滨 150090)
摘要:
为探究以超滤为核心的短流程、低药剂的绿色净水工艺可行性,以连续过滤作为膜前预处理工艺,通过中试实验考察连续过滤-超滤工艺处理松花江水的处理效能和膜污染特性,并与直接超滤进行对比实验,考察连续过滤预处理在组合工艺中的作用.结果表明,连续过滤-超滤工艺对松花江水的浊度和氨氮均有良好的去除效果,去除率分别为99.75%和70.77%,但对有机物的去除效果较差,CODMn和UV254的去除率分别为32.21%和17.12%.超滤膜前期污染较缓慢,15 d后污染速率加快,在第50天跨膜压差增长至50.3 kPa,达到膜污染上限.连续过滤对色氨酸类蛋白质有较好的去除效果,而超滤对溶解性生物代谢物、色氨酸类蛋白质、富里酸类有机物和腐殖酸类有机物均有一定的截留作用,其中腐殖酸类有机物和色氨酸类蛋白质是超滤膜的主要不可逆污染物.组合工艺对CODMn、UV254和氨氮的去除率比直接过滤分别高出9.97%,7.02%和33.84%,且膜污染速率远低于直接超滤.研究成果将推动超滤膜技术在微污染源水净化方面的广泛应用.
关键词:  超滤  连续过滤  预处理  膜污染  绿色净水工艺
DOI:10.11918/j.issn.03676234.201801138
分类号:TU991.2
文献标识码:A
基金项目:国家自然科学基金(51522804);哈尔滨工业大学环境生态研究院科学家工作室(HSCJ201603)
A pilot study of continuous filtration-ultrafiltration process for Songhua River water treatment
HUANG Qiaojin,GUO Yuanqing,LIANG Heng,LI Guibai
(State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150090, China)
Abstract:
To explore the feasibility of the green water purification process of ultrafiltration with short process and low chemical dosage, continuous filtration was used as the pretreatment process, and a pilot study of continuous filtration-ultrafiltration process for Songhua River water treatment was performed in terms of treatment efficiency and membrane fouling. In addition, a comparison experiment with direct ultrafiltration was performed to investigate the role of continuous filtration in the combination process. The results showed that the continuous filtration-ultrafiltration process had excellent removal efficiency for turbidity and ammonia nitrogen. The removal rates were 99.75% and 70.77%, respectively. But the removal of organic matter was inefficient. The removal rates of CODMn and UV254 were 32.21% and 17.12%, respectively. In the early stage, the rate of membrane fouling was slow, and it became faster after the 15th day. The transmembrane pressure increased to the superior limit of 50.3 kPa on the 50th day. Continuous filtration showed a good removal effect on tryptophan protein, and ultrafiltration showed different degrees of removal of soluble biometabolites, tryptophan proteins, fulvic acid organics, and humic acids. Humic acids and tryptophan proteins were the main irreversible contaminants of ultrafiltration membranes. The removal rate of CODMn, UV254, and ammonia nitrogen by the combination process were 9.97%, 7.02%, and 33.84% higher than that of direct filtration, respectively. Moreover, the membrane fouling rate of the combination process was much less than that of direct ultrafiltration. Continuous filtration pretreatment cannot only improve the removal efficiency of organic matter and ammonia nitrogen, but also alleviate ultrafiltration membrane fouling effectively.
Key words:  ultrafiltration  continuous filtration  pretreatment  membrane fouling  green water purification process

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