Occurrence and removal of pharmaceuticals, hormones, personal care products, and endocrine disrupters in a full-scale water reclamation plant

Trần, Ngọc Hân; Gin, Karina Yew-Hoong

doi:10.1016/j.scitotenv.2017.05.097

Cited by 203 publications

(82 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…as well as their physico-chemical properties. The hydrophobic components are removed from the liquid phase by adsorption and, possibly, when the SRT is sufficiently high, to be removed between the biodegradation processes [56][57][58]. The compactness of the MBR system, the high organic load that can be applied, and the high SRT give good results in removing micropollutant [48].…”

Section: Micropollutant Treatment Studies With Mbr Applicationsmentioning

confidence: 99%

Efficient Removal Approach of Micropollutants in Wastewater Using Membrane Bioreactor

Mert¹,

Özengi̇n²,

Doğan³

et al. 2018

Wastewater and Water Quality

View full text Add to dashboard Cite

In the recent past years, micropollutants that are pharmaceutically active compounds (PhACs) have been used extensively and have been discovered in raw sewage, wastewater treatment plants, effluents, surface, and groundwater with concentrations from ng/L to several μg/L. Even though many of these compounds are still not determined online, monitoring technology improvements progressed. Today's wastewater treatment plants are not constructed to remove these micropollutants yet. Conventional activated sludge processes are used in the treatment of municipal wastewater but are not specifically designed for the removal of micropollutants. The remaining pharmaceuticals mix into surface waters. At that stage, they can adversely affect the aquatic environment and may cause issues for drinking water production. As the conventional methods are insufficient for removing the micropollutants, other alternative treatment methods can be applied such as coagulation-flocculation, activated carbon adsorption (powdered activated carbon and granular activated carbon), advanced oxidation processes, membrane processes, and membrane bioreactor. It has been observed that membrane bioreactor (MBR) can achieve higher and more consistent micropollutants removal. The removal of micropollutants is based on physicochemical properties of micropollutants and the conditions of treatment. Due to recent technical innovations and cost reductions of the actual membranes, the membrane bioreactor takes attention. In this study, membrane bioreactor experiments for micropollutants in drinking use, wastewater, and surface waters were investigated in detail based on literature investigations, and the feasibility of this method was evaluated.

show abstract

Section: Micropollutant Treatment Studies With Mbr Applicationsmentioning

confidence: 99%

Efficient Removal Approach of Micropollutants in Wastewater Using Membrane Bioreactor

Mert¹,

Özengi̇n²,

Doğan³

et al. 2018

Wastewater and Water Quality

View full text Add to dashboard Cite

show abstract

“…The treatment efficiency of 25 target emerging contaminants (ECs) in a full-scale WRP was evaluated (Tran and Gin, 2017). The WRP had two concurrent treatment trains: conventional activated sludge and a MBR.…”

Section: Zou and Hementioning

confidence: 99%

Water Reclamation and Reuse

Sun

Zhang²,

Xu³

et al. 2018

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…The phenolic compounds including aminophenol, methylaminophenoland dihydroxybenzene are considered as environment pollutants, which have high toxicity causing dermal irritation and allergic reactions . Moreover, the phenolic compounds in the aquatic environment can cause the undesirable effects on ecosystem and human health ,. The mechanisms of the hydrogen abstraction reaction between the mono‐substituted phenols and nitrogen dioxide in 298 K were investigated by Tao et al, but the dynamics remain unknown up to now.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8][9][10][11] Moreover, the phenolic compounds in the aquatic environment can cause the undesirable effects on ecosystem and human health. [12,13] The mechanisms of the hydrogen abstraction reaction between the mono-substituted phenols and nitrogen dioxide in 298 K were investigated by Tao et al, [14] but the dynamics remain unknown up to now. However, the dynamics are of significance in theory and experiment.…”

Section: Introductionmentioning

confidence: 99%

Theoretical study on the formation mechanisms, dynamics and the effective catalysis of the nitrophenols

Jia

Bai

et al. 2018

ChemistrySelect

View full text Add to dashboard Cite

The hydrogen abstraction reactions of mono‐substituted phenols and nitrogen dioxide may be the sources of HONO and phenoxy radical. Further addition reaction of NO2 and phenoxy radical can form 2‐nitrophenol (2‐NP) and 4‐nitrophenol (4‐NP). The specific formation mechanisms and dynamics of NPs have drawn significant attention in recent days. The promoted reaction mechanisms by water, phenol and intermediate have also been studied. Compared with the naked reaction, the catalytic pathways can reduce the energy barrier from 48.40 kcal/mol to 18.23, 23.03 and 18.87 kcal/mol to form 2‐NP, respectively. Water molecules are the most effective catalysts, and the energy barrier could be further reduced to 8.20 kcal/mol when three water molecules are participating in the reaction. Water molecules can not only promote the formation of 4‐NP, but also simplify the reaction steps. In general, the water molecules serve as catalysts in the formation of NPs. The rate constants of 2‐NP and its hydrates have been predicted. The results are listed as follows: k2‐NP =3.82×10−13; k2‐NP‐1W =2.43×10−7; k2‐NP‐2W =3.39×10−4 cm3molecule−1s−1. The rate constants of mono‐substituted phenols (methylamino phenol, aminophenol and hydroquinone) and NO2 are also predicted by the traditional transitional state theory and variational transition state theory using the B3LYP/6‐311++G(3df,3pd)//6‐311++G(d). For the most dominant path, the rate constants for o/m/p‐methylaminophenol are 1.91×10−14, 4.28×10−20 and 8.78×10−15 cm3molecule−1s−1, respectively.

show abstract

Occurrence and removal of pharmaceuticals, hormones, personal care products, and endocrine disrupters in a full-scale water reclamation plant

Cited by 203 publications

References 92 publications

Efficient Removal Approach of Micropollutants in Wastewater Using Membrane Bioreactor

Efficient Removal Approach of Micropollutants in Wastewater Using Membrane Bioreactor

Water Reclamation and Reuse

Theoretical study on the formation mechanisms, dynamics and the effective catalysis of the nitrophenols

Contact Info

Product

Resources

About