Study on Intensive Pretreatment of Refractory Pharmaceutical Park Tail Water

LI Kui; LIN Qi; SONG Yong-hui; GUO Xin-chao; YANG Peng-xheng

doi:10.3969/j.issn.1674-991X.2014.05.059

Volume 4 Issue 5

Sep. 2014

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LI Kui, LIN Qi, SONG Yong-hui, GUO Xin-chao, YANG Peng-xheng. Study on Intensive Pretreatment of Refractory Pharmaceutical Park Tail Water[J]. Journal of Environmental Engineering Technology, 2014, 4(5): 373-377. doi: 10.3969/j.issn.1674-991X.2014.05.059

Citation:

LI Kui, LIN Qi, SONG Yong-hui, GUO Xin-chao, YANG Peng-xheng. Study on Intensive Pretreatment of Refractory Pharmaceutical Park Tail Water[J]. Journal of Environmental Engineering Technology, 2014, 4(5): 373-377. doi: 10.3969/j.issn.1674-991X.2014.05.059

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Study on Intensive Pretreatment of Refractory Pharmaceutical Park Tail Water

doi: 10.3969/j.issn.1674-991X.2014.05.059

LI Kui^1,2,3,
LIN Qi^1,2,
SONG Yong-hui^{1,2*
,
,},
GUO Xin-chao³,
YANG Peng-xheng^1,2,3

1.
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
2.
Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences
3.
School of Environmental and Municipal Engineering, Xi′an University of Architecture and Technology

More Information

Corresponding author: SONG Yong-hui E-mail: songyh@craes.org.cn
Received Date: 2012-11-08
Rev Recd Date: 2012-12-18
Publish Date: 2014-09-20

Abstract

Abstract

Considering the poor biodegradability of the refractory pharmaceutical park tail water, activated sludge adsorption, O₃ oxidation and adsorption of activated sludge coupled with O₃ were separately used to pre-treat pharmaceutical tail water, and the test parameters were optimized. The results showed that separate activated sludge adsorption method had a certain ability to remove organic matter, but it could not effectively improve the biodegradability of the wastewater; both the COD_Cr removal efficiency and the biodegradability of wastewater were greatly improved by O₃ oxidation and adsorption of activated sludge coupled with O₃. It was verified that activated sludge coupled with O₃ process was an effective pretreatment technology, the COD_Cr removal efficiency could reach 37.90%, and the biodegradability was greatly improved, with BOD₅/COD_Crincreasing from 0.020 to 0.141, and its processing cost is more economical.
- pharmaceutical park tail water,
- activated sludge adsorption,
- O₃ oxidation,
- pre-treatment