RECOVERY STRATEGY OF SEQUENTIAL BIOCATALYST ADDITION AFTER INHIBITION OF FULL-SCALE NITRIFICATION SYSTEMS: A FEASIBILITY STUDY

YUAN Hong-lin; WEN Jun-wei; XING Bao-shan; HAN Yu-le; CAO Si-fan; MA Jing; WANG Xiao-chang

doi:10.13205/j.hjgc.202006021

Volume 38 Issue 6

Aug. 2020

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YUAN Hong-lin, WEN Jun-wei, XING Bao-shan, HAN Yu-le, CAO Si-fan, MA Jing, WANG Xiao-chang. RECOVERY STRATEGY OF SEQUENTIAL BIOCATALYST ADDITION AFTER INHIBITION OF FULL-SCALE NITRIFICATION SYSTEMS: A FEASIBILITY STUDY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(6): 132-136,201. doi: 10.13205/j.hjgc.202006021

Citation:

YUAN Hong-lin, WEN Jun-wei, XING Bao-shan, HAN Yu-le, CAO Si-fan, MA Jing, WANG Xiao-chang. RECOVERY STRATEGY OF SEQUENTIAL BIOCATALYST ADDITION AFTER INHIBITION OF FULL-SCALE NITRIFICATION SYSTEMS: A FEASIBILITY STUDY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(6): 132-136,201. doi: 10.13205/j.hjgc.202006021

Citation:

YUAN Hong-lin, WEN Jun-wei, XING Bao-shan, HAN Yu-le, CAO Si-fan, MA Jing, WANG Xiao-chang. RECOVERY STRATEGY OF SEQUENTIAL BIOCATALYST ADDITION AFTER INHIBITION OF FULL-SCALE NITRIFICATION SYSTEMS: A FEASIBILITY STUDY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(6): 132-136,201. doi: 10.13205/j.hjgc.202006021

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RECOVERY STRATEGY OF SEQUENTIAL BIOCATALYST ADDITION AFTER INHIBITION OF FULL-SCALE NITRIFICATION SYSTEMS: A FEASIBILITY STUDY

doi: 10.13205/j.hjgc.202006021

Key Laboratary of Environmental Engineering, Shaanxi Province;Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province;International Science & Technology Cooperation Center for Urban Alternative Water Resources Development;Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education;School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Received Date: 2019-07-31

Abstract

Abstract

The recovery strategy of sequential biocatalyst addition and the key points during the implementation of bio-augmentation strategy was investigated to rapid recovery of full-scale nitrification system with long-term inhibition in this study, which was difficult to recover through conventional regulations. The concentrations of ammonia, nitrate, nitrous, COD, alkalinity and total phenol were determined after adding high-efficient nitrifying bacteria in the lab-scale and full-scale experiments. Meanwhile, microscopic examination was carried out to analyze the changes of protometazoan animals. The results shown that ammonia concentration decreased significantly and the proto-metazoan animals appeared gradually after adding nitrifying bacteria. For the treatment of real coal chemical wastewater, the full-scale nitrification system can be realized long-term stable operation with the influent total phenol concentration lower than 10 mg/L. According to results, lab-scale experiment can be used as a preliminary reference for the feasibility of the bio-augmentation strategy. Accurate identification of the instability reasons or the inhibitors in full-scale nitrification system was the key point for the rapid recovery of the full-scale nitrification system. Through maximum extent to reduce inhibitor concentration, the nitrification reaction can be established quickly, and then the full-scale nitrification system also realized by using the recovery strategy of sequential biocatalyst addition basis on the conventional regulations.
- inhibition,
- full-scale,
- nitrification system,
- sequential biocatalyst addition,
- bio-augmentation,
- total phenols

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References(27)

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