Biodegradation potential of wastewater micropollutants by ammonia-oxidizing bacteria

Roh, Hyungkeun; Subramanya, Nethra; Zhao, Fuman; Yu, Chang‐Ping; Sandt, Justin; Chu, Kung-Hui

doi:10.1016/j.chemosphere.2009.08.049

Cited by 244 publications

(104 citation statements)

References 39 publications

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“…Ammonia monooxygenase (AMO) was another enzyme that was involved in BPA degradation. Degradation efficiency of a Nitrosomonas europaea strain was inhibited by the presence of allylthiourea, an inhibitor of AMO (Roh et al 2009). The decreased removal efficiency of nitrifierenriched activated sludge in the presence of allylthiourea or Hg 2 SO 4 was also observed by Kim et al (2007).…”

Section: Bpa Degradation By Gram-negative Bacteriamentioning

confidence: 99%

“…Because the study of Sasaki et al (2005a) was focused on the function of cytochrome P450 monooxygenase system in BPA degradation, further degradation of compounds I and II was not investigated. (3) BPA Roh et al 2009 degradation via a type II ipso substitution mechanism occurred in Sphingomonas sp. strain TTNP3.…”

Section: Bpa Degradation By Gram-negative Bacteriamentioning

confidence: 99%

“…Beside P450 monooxygenase, an AMO from N. europaea and an extracellular laccase from Pseudomonas sp. strain were also involved in BPA degradation (Roh et al 2009;Telke et al 2009). However, the catalytic mechanism of the known enzymes still needs further investigation.…”

Section: Bpa Degradation By Gram-negative Bacteriamentioning

confidence: 99%

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Bacteria-mediated bisphenol A degradation

Zhang

Yin

Chen

2013

Appl Microbiol Biotechnol

171

100

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Bisphenol A (BPA) is an important monomer in the manufacture of polycarbonate plastics, food cans, and other daily used chemicals. Daily and worldwide usage of BPA and BPA-contained products led to its ubiquitous distribution in water, sediment/soil, and atmosphere. Moreover, BPA has been identified as an environmental endocrine disruptor for its estrogenic and genotoxic activity. Thus, BPA contamination in the environment is an increasingly worldwide concern, and methods to efficiently remove BPA from the environment are urgently recommended. Although many factors affect the fate of BPA in the environment, BPA degradation is mainly depended on the metabolism of bacteria. Many BPA-degrading bacteria have been identified from water, sediment/soil, and wastewater treatment plants. Metabolic pathways of BPA degradation in specific bacterial strains were proposed, based on the metabolic intermediates detected during the degradation process. In this review, the BPA-degrading bacteria were summarized, and the (proposed) BPA degradation pathway mediated by bacteria were referred.

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Section: Bpa Degradation By Gram-negative Bacteriamentioning

confidence: 99%

Section: Bpa Degradation By Gram-negative Bacteriamentioning

confidence: 99%

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Bacteria-mediated bisphenol A degradation

Zhang

Yin

Chen

2013

Appl Microbiol Biotechnol

171

100

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“…The biodegradation of triclosan by ammonia-oxidizing bacteria was also studied in another study, and they reported that triclosan was biodegraded by this bacteria of Nitrosomonas europaea. However, they also noted that there was a reduction in the nitrate production because of competitive behavior or toxicity effects of triclosan [19].…”

Section: Chemical Structurementioning

confidence: 99%

Use the Extended Activated Sludge Process to Remove Triclosan (TCS) from Wastewater Treatment Plant

Maroof¹,

Uysal²

2015

KSU J. Eng. Sci.

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ABSTRACT:The antibacterial personal care product Triclosan (TCS), is a broad spectrum antibacterial. It has been used for more than 40 years as an antiseptic, disinfectant or preservative in clinical settings, and in the various consumer products including cosmetics, plastic materials and toys. It has lately been determined in the sources of the aquatic environment; its potential effect on ecosystems. The contaminants can reach the soil and aquatic environment through land application of wastewater effluent and agricultural runoff, and then reach to humans through the food chain. Triclosan is used worldwide on a large scale especially in many personal care products, like toothpaste, shampoo and soap. In this study, the removal of Triclosan was investigated in an extended activated sludge process set in a laboratory-scale reactor. Activated sludge biomass used in the reactor was obtained from Gaziantep wastewater treatment plant. The analytical method based on solid-phase extraction (SPE) followed by high Performance Liquid Chromatography (HPLC) was used for the determination of Triclosan in extended activated sludge effluent. Reactor was operated in different HRTs and Triclosan removal efficiency was obtained as 92.5%, 95.4%, 99.1% and 99.9% for different HRT values of 18h, 24h, 48h, and 52h, respectively.

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“…In general, MBR systems operated at high sludge age provide higher removal efficiency for micropollutants due to present of diverse microorganisms in wastewater (Roh et al, 2009). …”

Section: Membrane Bioreactor (Mbr)mentioning

confidence: 99%

Treatment Alternatives for Micropollutant Removal in Wastewater

Nas¹,

Dolu²,

Ateş³

et al. 2017

Scitech

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Present of micropollutants in aquatic environments has become an alarming environmental problem for both living creatures and environment. Micropollutants, also called as emerging contaminants arise from natural substances and increasing variety of anthropogenic events. Micropollutants consist of pharmaceuticals, personal care products, steroid hormones, industrial chemicals, pesticides, polyaromatic hydrocarbons and other recently seen compounds. These emerging contaminants are commonly found in very low concentration in different water bodies ranging from a few ng/l to several μg/l. Many existing Wastewater Treatment Plants (WWTPs) in all over the world are not especially designed for removing micropollutants. Low concentration and diversity of micropollutants complicate the dedection and analysis procedures during the treatment processes. Furthermore, entering micropollutants to the WWTPs continuously and stable structure of many micropollutants make difficult to eliminate these emerging compounds sufficiently. Therefore, many micropollutants of unknown concentration pass to aquatic environment from WWTPs. The occurence of micropollutants with a significant levels in aquatic environments disrupt the aquatic ecosystems with a number of adverse effects including short-term and long-term toxicity such as endocrine disrupting effects. Besides the known negative effects of micropollutants there are great number of micropollutants whose effects on living organisms are still unknown. As a result, removing these compounds is of a great importance both to protect environmental ecosystem and human health. Considering that the conventional methods are insufficient for removing the micropollutants other alternative treatment methods including coagulation-flocculation, activated carbon adsorption (powdered activated carbon and granular activated carbon), advanced oxidation processes (AOPs), membrane processes and membrane bioreactor can be applied for better removal. In this study, alternative treatments methods and removal efficiencies of each treatment methods on different micropollutants were investigated and all alternative treatment methods were compared between each other in terms of micropollutant removal rates.

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Biodegradation potential of wastewater micropollutants by ammonia-oxidizing bacteria

Cited by 244 publications

References 39 publications

Bacteria-mediated bisphenol A degradation

Bacteria-mediated bisphenol A degradation

Use the Extended Activated Sludge Process to Remove Triclosan (TCS) from Wastewater Treatment Plant

Treatment Alternatives for Micropollutant Removal in Wastewater

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