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Operation analysis of submerged ultrafiltration technology in Langshan water treatment plant

Authors： YU Zhenbiao，YUAN Xiao，CHEN Qing，LU Yuerong

Units： 1．Nantong Water Service Co., Ltd，Nantong，226000，China；2. Suzhou Litree Purifying Technology Co., Ltd，Suzhou，215152，China

KeyWords： submerged ultrafiltration membrane；water treatment plant； stability； safety

ClassificationCode：TQ028.8；X522

year,volume(issue):pagination： 2023,43(2):150-154

Abstract：

The design scale of submerged ultrafiltration membrane system of Langshan plant in Nantong is 30 × 104m3/d, the corresponding treatment process is "coagulation sedimentation + ozone activated carbon + submerged ultrafiltration membrane". At the same time, the sedimentation tank can exceed the membrane tank. This process can effectively deal with the water quality with the source water of the Yangtze River Basin as the raw water. The actual operation shows that the effluent quality of this process is stable, the turbidity is kept below 0.1 NTU, the CODMn is less than 2 mg/L, and the number of particles (≥ 2 μ m) is less than 10 per mL, which effectively ensures the water quality stability of the produced water. At the same time, the leapfrog process combination can save operation energy consumption. In the process of operation management, the membrane system restorative cleaning shall fully consider the rationality of pipeline materials and operation safety.

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AuthorIntro：

郁振标（1969-），男，江苏南通，高级工程师，本科，研究方向：给水技术

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