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

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

Chemosphere ◽

10.1016/j.chemosphere.2019.125752 ◽

2020 ◽

Vol 247 ◽

pp. 125752 ◽

Cited By ~ 2

Author(s):

Kaili Ma ◽

Xiaohan Zhang ◽

Yong Shang ◽

Zhenkui Zhu ◽

Xilin Li ◽

...

Keyword(s):

Wastewater Treatment ◽

Ambient Temperature ◽

Terephthalic Acid ◽

Purified Terephthalic Acid

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Influence of organic loading rate on purified terephthalic acid wastewater treatment in a temperature staged anaerobic treatment (TSAT) system: Performance and metagenomic characteristics

Chemosphere ◽

10.1016/j.chemosphere.2019.01.028 ◽

2019 ◽

Vol 220 ◽

pp. 1091-1099 ◽

Cited By ~ 2

Author(s):

Kai-li Ma ◽

Xiang-kun Li ◽

Lin-lin Bao

Keyword(s):

Wastewater Treatment ◽

System Performance ◽

Terephthalic Acid ◽

Loading Rate ◽

Anaerobic Treatment ◽

Organic Loading Rate ◽

Organic Loading ◽

Purified Terephthalic Acid

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Impact of salinity on anaerobic microbial community structure in high organic loading purified terephthalic acid wastewater treatment system

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2019.121132 ◽

2020 ◽

Vol 383 ◽

pp. 121132 ◽

Cited By ~ 4

Author(s):

Xiao-chen Ma ◽

Xiang-kun Li ◽

Xue-wei Wang ◽

Gai-ge Liu ◽

Jin-long Zuo ◽

...

Keyword(s):

Wastewater Treatment ◽

Community Structure ◽

Microbial Community ◽

Microbial Community Structure ◽

Terephthalic Acid ◽

Treatment System ◽

Organic Loading ◽

Wastewater Treatment System ◽

Anaerobic Microbial Community ◽

Purified Terephthalic Acid

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Two-stage anaerobic treatment of purified terephthalic acid production wastewaters

Water Science & Technology ◽

10.2166/wst.2000.0524 ◽

2000 ◽

Vol 42 (5-6) ◽

pp. 277-282 ◽

Cited By ~ 21

Author(s):

J.C. Young ◽

I.S. Kim ◽

I.C. Page ◽

D.R. Wilson ◽

G.J. Brown ◽

...

Keyword(s):

Terephthalic Acid ◽

Phthalic Acid ◽

Contact Process ◽

Treatment Plant ◽

Anaerobic Treatment ◽

Stable Operation ◽

Production Facility ◽

Two Stage ◽

Phthalic Acids ◽

Purified Terephthalic Acid

A full-scale two-stage anaerobic treatment plant has been treating the wastewaters from a purified terephthalic acid (PTA) production facility in South Korea for over 4 years. A study was conducted to evaluate the performance characteristics of this system over a 17-month period of operation. The system has provided stable operation with COD removals consistently averaging over 90%. The removal of specific phthalic acid isomers and related chemicals has been essentially 100% except for terephthalic acid which has averaged about 90% and paratoluic acid which had only about 30% removal. About 80% of the removal occurred in the first stage of the two-stage hybrid process. A companion single-stage anaerobic contact process removed only 80 to 85% of the COD and only 35 to 67% of the phthalic acids.

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