Treatment of Beijiang River Water by a Submerged Ultrafiltration Membrane Pilot Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
9 9
Page:
63-68
Column:
Date of publication:
2020-05-01
- Keywords:
-
Beijiang River water
; submerged ultrafiltration; membrane flux; continuous filtration time; membrane fouling
- Abstract:
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The Beijiang River water was treated by a submerged ultrafiltration membrane pilot plant in order to evaluate the applicability of environmental short cut water treatment technology. The effects of ultrafiltration membrane flux and continuous filtration time on the removal of CODMn, UV254, turbidity, ammonia nitrogen and nitrite nitrogen in the pilot plant were investigated, and the effects on membrane fouling (transmembrane pressure and fluorescent organics) were analyzed. CODMn and turbidity in the effluent both met the Standards for Drinking Water Quality (GB 5749-2006) during 69 days of continuous operation of the pilot plant. However, there was almost no removal of ammonia nitrogen and nitrite nitrogen. Increasing ultrafiltration membrane flux and prolonging continuous filtration time could significantly reduce the CODMn and UV254 removal efficiencies. However, the removal efficiency of turbidity was always above 99%, which was due to the strong sieving effect of ultrafiltration membrane. The transmembrane pressure of the pilot plant showed a deteriorating trend with the increase of ultrafiltration membrane flux and continuous filtration time, indicating that the ultrafiltration membrane fouling degree was aggravated.
Last Update:
2020-05-01