| 4段式平板膜处理污泥的中试研究 |
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| 引用本文： | 朱学峰, 周明远, 王志伟, 苑文仪, 关杰. 4段式平板膜处理污泥的中试研究[J]. 环境工程学报, 2015, 9(1): 436-440. doi: 10.12030/j.cjee.20150172 |
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| 作者姓名： | 朱学峰 周明远 王志伟 苑文仪 关杰 |
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| 作者单位： | 1.上海第二工业大学城市建设与环境工程学院, 上海 201209; 2.同济大学环境科学与工程学院, 上海 200092 |
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| 基金项目： | 上海第二工业大学校基金(EGD13XQD16) 上海第二工业大学校学科培育基金(XXKPY1303) |
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| 摘 要： | 4段式平板膜处理污泥及中水回用工艺是根据次临界通量的原理设计运行的。在中试装置运行25 d的过程中,发现污泥浓度逐级提升,在进泥浓度为3 g/L左右时,出泥平均可达35 g/L;同时发现,膜出水COD和氨氮浓度均在工艺运行18 d内分别保持在50 mg/L和10 mg/L;最后,研究发现,从第1段到第4段过程中,污泥的粒径逐渐减少,而污泥的粘度和毛细脱水时间是逐渐增大的。
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| 关 键 词： | 中试 4段式污泥浓缩 平板膜 中水回用 |
| 收稿时间： | 2014-08-26 |
Pilot study on four-stage thickening of sludge using flat-sheet membrane |
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| Zhu Xuefeng, Zhou Mingyuan, Wang Zhiwei, Yuan Wenyi, Guan Jie. Pilot study on four-stage thickening of sludge using flat-sheet membrane[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 436-440. doi: 10.12030/j.cjee.20150172 |
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| Authors: | Zhu Xuefeng Zhou Mingyuan Wang Zhiwei Yuan Wenyi Guan Jie |
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| Affiliation: | 1.School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China; 2.School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | According to the principle of sub-critical flux, the process of using flat-sheet membrane for four-stage sludge thickening(FSMST) was designed for thicken sludge and reuse water.During the 25 d operation of pilot scale FSMST, it was found that the sludge concentration gradually increased from first stage to fourth stage, moreover, it was detected that the effluent sludge concentration maintained at approximate 35 g/L when the influent sludge concentration was about 3 g/L.Meanwhile, the chemical oxygen demand(COD) and NH4+-N of the effluent water were stably below 50 mg/L and 20 mg/L, respectively, after 18 d operation.Ultimately, it was observed that the particle size of sludge decreased from first stage to fourth stage, on the contrary, the viscosity and capillary suction time(CST) of sludge gradually increased. |
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| Keywords: | pilot scale four-stage sludge thickening membrane water reuse |
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