NDLI: Evaluation of nutrients removal in full-scale modified oxidation ditch system in the ambient conditions

Content Provider	IEEE Xplore Digital Library
Author	Zhiquan Yang Guoling Liu
Copyright Year	2011
Description	Author affiliation: College of Environmental Science and Engineering, South China University of Technology, Guangzhou, China (Zhiquan Yang) \|\| Programming and Constructing Bureau, Water Supply Company, Xingan, China (Guoling Liu)
Abstract	A modified oxidation ditch process is applied in a full-scale municipal wastewater treatment plant. Compared with the conventional oxidation ditch, the modified oxidation ditch adds some microporous aerators to improve oxygen utilization. The measures bring about a further improvement of nitrogen and phosphorus in the urban wastewater. The monitoring results for one year show that the influent concentrations of SS, COD, NH4-N and TP are 160–320, 170–320, 8–16, 2.5–4.0 mg/L, respectively. And the influent pH and temperature are 7.0–8.5 and 17–27 °C. Afte the treatment of modified oxidation ditch process, the average effluent concentrations of SS, COD, NH4-N, TP are 18, 20, 2.4, 0.8 mg/L, and the average removal rates are 92%, 90%, 80%, 60%, respectively. The effluent pH is consisted with the influent pH. The removal efficiency of nitrogen and phosphorus can be kept at good efficiency, in spite of the fluctuation of temperature. The effluent quality meets the 1 B level discharging criteria in China.
Starting Page	2151
Ending Page	2154
File Size	438268
Page Count	4
File Format	PDF
ISBN	9781424491728
e-ISBN	9781424491711
DOI	10.1109/RSETE.2011.5964733
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-24
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Presses Temperature Effluents Phasphorus PH Oxidation ditch Oxidation Wastewater Nitrogen Wastewater treatment
Content Type	Text
Resource Type	Article

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