Removal Characteristics of Organic Pollutants from Eutrophic Raw Water by Biological Pretreatment Reactors
Joint Authors
Zhu, Guangcan
Lu, Xiwu
Yang, Zhonglian
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-02
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Two biological contact oxidation reactors, cascade biofilm reactor (CSBR) and one-step biofilm reactor (OSBR), were used in this paper for pretreatment of eutrophic water from Lake Taihu in China.
The CSBR was more effective and stable for eutrophic water treatment than OSBR, in terms of extracellular microcystin-LR, chlorophyll-a, DOC, and biodegradable dissolved organic carbon (BDOC) removal.
Removal efficiencies of extracellular microcystin-LR and chlorophyll-a were 75.8% and 59.7% in CSBR and 60.5% and 53.0% after 2 h in OSBR.
CSBR had much higher removal efficiency (34.3%) than OSBR (22.7%) for DOC, and CSBR could remove 67% BDOC, accounting for 34% of total DOC in source water.
11.5% of DOC was removed through means other than biological degradation, such as biofilm adsorption and bioflocculation.
In CSBR at 5.5~13°C, 57.5% of atrazine was removed at 2 h hydraulic retention time, with background concentration of 136.5 ng/L.
Meanwhile, removal efficiencies of three phthalic acid esters (PAEs) (dimethyl phthalate, di-(2-ethylhexyl) phthalate, and di-n-butyl phthalate) were 78.7%, 52.4%, and 85.3%, respectively.
Only 35.2% of polycyclic aromatic hydrocarbons (PAHs) could be removed by CSBR with initial concentration of 21.5 μg/L.
The results indicated that CSBR is effective in low-molecular-weight organic pollution pretreatment and provides benefits in terms of effluent quality.
American Psychological Association (APA)
Zhu, Guangcan& Yang, Zhonglian& Lu, Xiwu. 2016. Removal Characteristics of Organic Pollutants from Eutrophic Raw Water by Biological Pretreatment Reactors. Journal of Chemistry،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1107625
Modern Language Association (MLA)
Zhu, Guangcan…[et al.]. Removal Characteristics of Organic Pollutants from Eutrophic Raw Water by Biological Pretreatment Reactors. Journal of Chemistry No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1107625
American Medical Association (AMA)
Zhu, Guangcan& Yang, Zhonglian& Lu, Xiwu. Removal Characteristics of Organic Pollutants from Eutrophic Raw Water by Biological Pretreatment Reactors. Journal of Chemistry. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1107625
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107625