Improved purified terephthalic acid wastewater treatment using combined UAFB-SBR system: At mesophilic and ambient temperature

Chemosphere ◽  
2020 ◽  
Vol 247 ◽  
pp. 125752 ◽  
Author(s):  
Kaili Ma ◽  
Xiaohan Zhang ◽  
Yong Shang ◽  
Zhenkui Zhu ◽  
Xilin Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Ambient Temperature ◽  
Terephthalic Acid ◽  
Purified Terephthalic Acid

Purified Terephthalic Acid Wastewater Treatment Using Modified Two-Stage UASB Bioreactor Systems

2020 ◽  
Vol 77 (6) ◽  
pp. 1081-1088
Author(s):  
Tayyibe Alpay ◽  
Burcin Karabey ◽  
Nuri Azbar ◽  
Guven Ozdemir
Keyword(s):  
Wastewater Treatment ◽  
Terephthalic Acid ◽  
Two Stage ◽  
Purified Terephthalic Acid

A novel fast mass transfer anaerobic inner loop fluidized bed biofilm reactor for PTA wastewater treatment

2016 ◽  
Vol 74 (5) ◽  
pp. 1088-1095 ◽  
Author(s):  
Yingwen Chen ◽  
Jinlong Zhao ◽  
Kai Li ◽  
Shitao Xie
Keyword(s):  
Mass Transfer ◽  
Wastewater Treatment ◽  
Fluidized Bed ◽  
Terephthalic Acid ◽  
Oxygen Demand ◽  
Biofilm Reactor ◽  
Stable Chemical ◽  
Start Up ◽  
Operation Stability ◽  
Purified Terephthalic Acid

In this paper, a fast mass transfer anaerobic inner loop fluidized bed biofilm reactor (ILFBBR) was developed to improve purified terephthalic acid (PTA) wastewater treatment. The emphasis of this study was on the start-up mode of the anaerobic ILFBBR, the hydraulic loadings and the operation stability. The biological morphology of the anaerobic biofilm in the reactors was also analyzed. The anaerobic column could operate successfully for 46 days due to the pre-aerating process. The anaerobic column had the capacity to resist shock loadings and maintained a high stable chemical oxygen demand (COD) and terephthalic acid removal rates at a hydraulic retention time of 5–10 h, even under conditions of organic volumetric loadings as high as 28.8 kg COD·m−3.d−1. The scanning electron microscope analysis of the anaerobic carrier demonstrated that clusters of prokaryotes grew inside of pores and that the filaments generated by pre-aeration contributed to the anaerobic biofilm formation and stability.

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