Effect of Soluble Organic, Particulate Organic, and Hydraulic Shock Loads on the Performance and Stability of Anaerobic Sequencing Batch Reactors treating Slaughterhouse Wastewater at 20°C

2001 ◽  
Author(s):  
Daniel I. Massé ◽  
Lucie Masse
Keyword(s):  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Hydraulic Shock ◽  
Shock Loads ◽  
Slaughterhouse Wastewater

scholarly journals Comparison Between Sequencing Batch Reactors (SBR) and Stirred Tank Reactors (STR) in Handling Hydraulic Shock Loads

2021 ◽  
Author(s):  
Herawati Budiastuti ◽  
Emma Hermawati Muhari ◽  
Laily Isna Ramadhani ◽  
Mukhtar Ghozali ◽  
Robby Sudarman
Keyword(s):  
Stirred Tank ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Hydraulic Shock ◽  
Shock Loads ◽  
Stirred Tank Reactors

scholarly journals Effect of Transient Nicotine Load Shock on the Performance ofPseudomonassp. HF-1 Bioaugmented Sequencing Batch Reactors

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Dong-sheng Shen ◽  
Li-jia Wang ◽  
Hong-zhen He ◽  
Mei-zhen Wang
Keyword(s):  
Oxidative Stress ◽  
Industrial Wastewater ◽  
Control Level ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Shock Loads ◽  
Toc Removal ◽  
Degrading Bacteria ◽  
Nicotine Degradation ◽  
Tobacco Waste

Bioaugmentation with degrading bacteria can improve the treatment of nicotine-containing tobacco industrial wastewater effectively. However, the transient and extremely high feeding of pollutants may compromise the effectiveness of the bioaugmented reactors. The effect of transient nicotine shock loads on the performance ofPseudomonassp. HF-1 bioaugmented SBRs were studied. The results showed that, under 500–2500 mg/L of transient nicotine shocks, all the reactors still could realize 100% of nicotine degradation in 4 days of recovery, while the key nicotine degradation enzyme HSP hydroxylase increased in expression. Though the dramatic increase of activities of ROS, MDA, SOD, and CAT suggested that transient nicotine shock loads could induce oxidative stress on microorganisms in activated sludge, a decrease to control level demonstrated that most of the microorganisms could resist 500–1500 mg/L of transient nicotine shock under the protection from strain HF-1. After 8 cycles of recovery, high ROS level and low TOC removal in high transient shock reactors implied that 2000–2500 mg/L of transient nicotine shock was out of its recovery of strain HF-1 bioaugmented system. This study enriched our understanding on highly efficient nicotine-degrading strain bioaugmented system, which would be beneficial to tobacco waste or wastewater treatment in engineering.

Effect of Aeration Rate on Nutrient Removal from Slaughterhouse Wastewater in Intermittently Aerated Sequencing Batch Reactors

2008 ◽  
Vol 192 (1-4) ◽  
pp. 251-261 ◽  
Author(s):  
Jianping Li ◽  
Mark G. Healy ◽  
Xinmin Zhan ◽  
Daniel Norton ◽  
Michael Rodgers
Keyword(s):  
Nutrient Removal ◽  
Aeration Rate ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Slaughterhouse Wastewater
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