ZHAO Xin-juan,LIU Bo-yi.Application of Short Process Ultrafiltration Membrane in Lingzhuang Waterworks[J].China Water & Wastewater,2021,37(10 10):71-74.
Application of Short Process Ultrafiltration Membrane in Lingzhuang Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
10 10
Page:
71-74
Column:
Date of publication:
2021-05-17
- Keywords:
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waterworks; pressure membrane process; PULSAZUR
![](KeySearch.aspx?type=KeyWord&Sel=PULSAZUR<img src="http://zggsps.paperonce.org/Upload/Park/bf73d7d9-a3d4-4a9f-aaed-72b9b46433b1.jpg" />)
- Abstract:
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The present treatment capacity of Tianjin Lingzhuang waterworks is 50×104 m3/d, and the treatment process includes reactive precipitation and conventional rapid filter. In order to meet the requirements of quantity and quality of product water, Lingzhuang waterworks is in urgent need of renovation. Through technical and economic comparison of various sedimentation tanks and clarifiers, analysis and comparison of combined membrane processes in large waterworks at home and abroad, and pilot tests carried out by many ultrafiltration (UF) membrane companies, the process of pretreatment, PULSAZURand pressure short process UF membrane was determined to be the newly-built purification system (30×104 m3/d) in Lingzhuang waterworks. This process could effectively deal with the raw water from Middle Route of the South-to-North Water Diversion as the main water source and the raw water from Luanhe River as the alternate water source. Compared with the existing domestic pressure ultrafiltration membrane waterworks, the new system shortened the process flow and reduced the construction investment. In addition, the combined process could determine the dosage of pre-oxidant and powder activated carbon (PAC) by analyzing the raw water quality, which could significantly decrease the operational cost. According to the practical operation data, turbidity and CODMn in product water of the combined process were always less than 0.1 NTU and 2 mg/L, respectively, indicating that the combined process can effectively ensure the chemical and biological safety of the product water.
Last Update:
2021-05-17