Occurrence, fate, and mass balance of different classes of pharmaceuticals and personal care products in an anaerobic-anoxic-oxic wastewater treatment plant in Xiamen, China

Ashfaq, Muhammad; Li, Yan; Wang, Yuwen; Chen, Wenjie; Wang, Han; Chen, Xiangqiang; Wu, Wei; Huang, Zhenyi; Yu, Chang‐Ping; Sun, Qian

doi:10.1016/j.watres.2017.07.014

Cited by 181 publications

(45 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The removal efficiencies for the target MPs varied largely from −7% to 92.6% (p < 0.05) with secondary and tertiary treatment processes, and the results were consistent with previous work [28]. It is noted that EE2 showed negative removal efficiency (p < 0.05), probably due to the transformation from the conjugated form to the free form [29]. Except for EE2, only 27.8% of the removal efficiency was found for CBZ, which may be due to its persistence in conventional wastewater treatment processes.…”

Section: Occurrence Of Micropollutants In Reclaimed Watersupporting

confidence: 88%

See 1 more Smart Citation

Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Wang

Ying

Минг

et al. 2019

Water

View full text Add to dashboard Cite

The utilization of reclaimed water is a reliable and sustainable approach to enhance water supply in water-deficient cities. However, the presence of micro-organic pollutants (MPs) in reclaimed water has potential adverse effects on aquatic ecosystems and human health. In this study, we investigated the occurrence of 12 target MPs in the influent and reclaimed water collected from a local wastewater treatment plant, and the ultraviolet (UV)-chlorine process was applied to analyze its ability to remove MPs. The results showed that all 12 MPs were detected in both the influent and the reclaimed water, with the concentrations ranging from 25.5 to 238 ng/L and 8.6 to 42.5 ng/L, respectively. Over 52% of all the target MPs were readily degraded by the UV-chlorine process, and the removal efficiency was 7.7% to 64.2% higher than the corresponding removal efficiency by chlorination or UV irradiation only. The degradation efficiency increased with the increasing initial chlorine concentration. The pH value had a slight influence on the MP degradation and exhibited different trends for different MPs. The formation of known disinfectant byproducts (DBPs) during the UV-chlorine process was 33.8% to 68.4% of that in the chlorination process, but the DBPs' formation potentials were 1.3 to 2.2 times higher. The toxicity assay indicated that UV-chlorine can effectively reduce the toxicity of reclaimed water.

show abstract

Section: Occurrence Of Micropollutants In Reclaimed Watersupporting

confidence: 88%

“…Water 2019, 11, 2639 5 of 11 conjugated form to the free form [29]. Except for EE2, only 27.8% of the removal efficiency was found for CBZ, which may be due to its persistence in conventional wastewater treatment processes.…”

Section: Occurrence Of Micropollutants In Reclaimed Watermentioning

confidence: 99%

Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Wang

Ying

Минг

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…All types of substances were distributed at a much higher rate in the solid phase than in the liquid phase. Ofloxacin had a mass load of 620 g/d and ciprofloxacin had a mass load of 47 g/d in samples taken between the anoxic and aerobic tanks, and at least 99% of both substances was found in the solid phase [17]. This was higher than the solid phase ratio of the antibiotics investigated in the activated sludge of the four STPs in this study (65%-96%), and was similar to the ratio determined in the return sludge (93%-97%).…”

Section: Mass Loads Of Pharmaceuticals In Each Treatment Processmentioning

confidence: 99%

“…This enables a more accurate assessment of the behavior and effective removal of pharmaceuticals. In particular, studies have evaluated the removal characteristics of pharmaceuticals by analyzing the mass balance of unit processes in STPs using various treatment processes, such as CAS, anaerobic-anoxic-oxic (A2O), membrane bioreactor (MBR), aerated lagoon, and oxidation ditch processes [14,[17][18][19][20]. However, the results of previous studies were not comprehensive.…”

Section: Introductionmentioning

confidence: 99%

Distribution and Removal of Pharmaceuticals in Liquid and Solid Phases in the Unit Processes of Sewage Treatment Plants

Park

Kim

Hong³

et al. 2020

IJERPH

View full text Add to dashboard Cite

In this study, we analyzed 27 pharmaceuticals in liquid and solid phase samples collected from the unit processes of four different sewage treatment plants (STPs) to evaluate their distribution and behavior of the pharmaceuticals. The examination of the relative distributions of various categories of pharmaceuticals in the influent showed that non-steroidal anti-inflammatory drugs (NSAIDs) were the most dominant. While the relative distribution of antibiotics in the influent was not high (i.e., 3%–5%), it increased to 14%–30% in the effluent. In the four STPs, the mass load of the target pharmaceuticals was reduced by 88%–95% mainly in the biological treatment process, whereas the ratio of pharmaceuticals in waste sludge to those in the influent (w/w) was only 2%. In all the STPs, the removal efficiencies for the stimulant caffeine, NSAIDs (acetaminophen, naproxen, and acetylsalicylic acid), and the antibiotic cefradine were high; they were removed mainly by biological processes. Certain compounds, such as the NSAID ketoprofen, contrast agent iopromide, lipid regulator gemfibrozil, and antibiotic sulfamethoxazole, showed varying removal efficiencies depending on the contribution of biodegradation and sludge sorption. In addition, a quantitative meta-analysis was performed to compare the pharmaceutical removal efficiencies of the biological treatment processes in the four STPs, which were a membrane bioreactor (MBR) process, sequencing batch reactor (SBR) process, anaerobic–anoxic–oxic (A2O) process, and moving-bed biofilm reactor (MBBR) process. Among the biological processes, the removal efficiency was in the order of MBR > SBR > A2O > MBBR. Among the tertiary treatment processes investigated, powdered activated carbon showed the highest removal efficiency of 18%–63% for gemfibrozil, ibuprofen, ketoprofen, atenolol, cimetidine, and trimethoprim.

show abstract

“…The results demonstrated that 352 g of studied PPCPs entered into the WWTP daily while 14.5 g and 58.1 g left through effluent and sludge, respectively. Furthermore, 79.4% of PPCPs mass was lost in WWTP owing to transformation or degradation(Ashfaq et al, 2017).The study of micropollutants like PPCPs and their ozonated transformation products (TPs) was conducted in a municipal WWTP in Germany equipped with full-scale ozonation units. Samples were taken before and after ozonation and also after the biological treatment process.There was a decrease in the concentrations of parent compounds after ozonation and after biological posttreatment.…”

mentioning

confidence: 99%

Fate of Environmental Pollutants

Zad

Astuti

Padhye

2018

Water Environment Research

View full text Add to dashboard Cite

This annual review covers the literature published in 2017 on topics related to the occurrence and fate of emerging environmental pollutants in wastewater. Due to the vast amount of literature published on this topic, we have discussed only a portion of the quality research publications, due to the limitation of space. The abstract search was carried out using Web of Science, and the abstracts were selected based on their relevance. In few cases, full-text articles were referred to better understand new findings. This review is divided into the following sections: antibioticresistant bacteria (ARBs) and antibiotic-resistant genes (ARGs), disinfection by-products (DBPs), estrogens, pesticides, pharmaceuticals and personal care products (PPCPs), and microplastics, a new section added this year.

show abstract

Occurrence, fate, and mass balance of different classes of pharmaceuticals and personal care products in an anaerobic-anoxic-oxic wastewater treatment plant in Xiamen, China

Cited by 181 publications

References 46 publications

Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Distribution and Removal of Pharmaceuticals in Liquid and Solid Phases in the Unit Processes of Sewage Treatment Plants

Fate of Environmental Pollutants

Contact Info

Product

Resources

About