التفاصيل البيبلوغرافية
| العنوان: |
Drinking water production by ultrafiltration of Songhuajiang River with PAC adsorption |
| المؤلفون: |
XIA, Sheng-ji1 xiashengji@yahoo.com, LIU, Ya-nan2, LI, Xing3, YAO, Juan-juan1 |
| المصدر: |
Journal of Environmental Sciences (Elsevier). May2007, Vol. 19 Issue 5, p536-539. 4p. |
| مصطلحات موضوعية: |
DRINKING water, ULTRAFILTRATION, WATER purification, WATER quality management |
| مستخلص: |
Abstract: In recent years, membrane ultrafiltration (UF) of surface water for drinking water treatment has become a more attractive technology worldwide as a possible alternative treatment to conventional clarification. To evaluate the performance of ultrafiltration membranes for treatment of surface water in North China, a 48-m2 low pressure hollow fiber membrane ultrafiltration pilot plant was constructed. Ultrafiltration was operated in cross-flow and with powdered activated carbon (PAC) adsorption. Turbidity was almost completely removed to less than 0.2 NTU (below Chinese standard 1 NTU). It was found that PAC addition enhanced organic matter removal. The combined process of PAC/UF allowed to 41% removal of CODMn, 46% removal of DOC and 57% decrease in UV254 absorbance. The elimination of particles, from average 12000/ml in the raw water to approximately 15/ml in the permeated, was observed. When PAC concentration was below 30 mg/L, backwashing could recovery the membrane flux with backwash interval/backwashing duration of 1/30. [Copyright &y& Elsevier] |
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| قاعدة البيانات: |
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