Sulfamethoxazole and COD increase abundance of sulfonamide resistance genes and change bacterial community structures within sequencing batch reactors

Guo, Xueping; Pang, Weihai; Dou, Chunling; Yin, Daqiang

doi:10.1016/j.chemosphere.2017.01.134

Cited by 73 publications

(26 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zoogloea belongs to the Proteobacteria phylum and showed an abundance of 1.98% in the reactor dosed with ACE, compared to 0.23% in the control. Zoogloea is a basic functional organism 50 , which is known to have the ability to block toxic compounds from using their exocellular matrix 51 . Augmentation of the abundance of Zoogloea indicated ACE may cause toxicity for activated sludge.…”

Section: Resultsmentioning

confidence: 99%

Removal of artificial sweeteners and their effects on microbial communities in sequencing batch reactors

Geng

et al. 2018

Sci Rep

View full text Add to dashboard Cite

Concern is growing over contamination of the environment with artificial sweeteners (ASWs) because of their widespread existence in wastewater treatment plants (WWTPs). To evaluate ASWs removal and the effect on activated sludge, acesulfame (ACE), sucralose (SUC), cyclamate (CYC) and saccharin (SAC) were introduced individually or in mixture to sequencing batch reactors (SBRs) in environmentally relevant concentrations (100 ppb) for 100 days. Comparisons between ACE removal in a full-scale WWTP and in lab-scale SBRs were conducted. Results showed that CYC and SAC were completely removed, whereas SUC was persistent. However, ACE removal in lab-scale SBRs was significantly greater than in the full-scale WWTP. In SBRs, chemical oxygen demand (COD), ammonia nitrogen (NH4+-N) and total nitrogen (TN) removal appeared unchanged after adding ASWs (p > 0.05). Adenosine triphosphate (ATP) concentrations and triphenyl tetrazolium chloride-dehydrogenase activity (TTC-DHA) declined significantly (p < 0.05). The mixed ASWs had more evident effects than the individual ASWs. Microbial community analyses revealed that Proteobacteria decreased obviously, while Bacteroidetes, Chloroflexi and Actinobacteria were enriched with the addition of ASWs. Redundancy Analysis (RDA) indicated ACE had a greater impact on activated sludge than the other ASWs.

show abstract

Section: Resultsmentioning

confidence: 99%

Removal of artificial sweeteners and their effects on microbial communities in sequencing batch reactors

Geng

et al. 2018

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In WWTPs a conventional biological treatment with activated sludge is commonly used as secondary treatment (Eddy, 2003). As variation of this activated sludge technique, sequencing batch reactors (SBRs) were demonstrated to be highly efficient and cost effective for the removal of slowly degradable organic compounds (Guo et al, 2017). In this way, SBR is a very interesting treatment to remove PhACs as previously published by Vona et al (Vona et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Pharmaceutical compounds removal by adsorption with commercial and reused carbon coming from a drinking water treatment plant

Luján-Facundo

Iborra–Clar

Mendoza–Roca

et al. 2019

Journal of Cleaner Production

View full text Add to dashboard Cite

The concern for the presence of pharmaceutical compounds in purified wastewater has grown in recent years. In this context, efficient and economically viable processes are required for their removal. In this study, adsorption was conducted to assess the removal of ibuprofen, caffeine, diazepam and acetaminophen, both as separated processes as in combination with a biological process in sequencing batch reactors. Removal efficiencies of these pharmaceutical active compounds were evaluated using two commercial activated carbons in granular and powder form and a discarded (after its use) activated carbon from a drinking water treatment plant. Concerning the biological treatment tests, simulated municipal wastewater was doped with 3 mg/L of each

show abstract

“…However, in a different study (Novo, Andr e, Viana, Nunes, & Manaia, 2013), the SMX concentration and the abundance of antibiotic resistant cultivable bacteria in raw wastewaters from full-scale WWTPs were positively correlated with the abundance of Epsilonproteobacteria in treated wastewater and negatively correlated with Gammaproteobacteria, Betaproteobacteria and Firmicutes. Guo, Pang, Dou, and Yin (2017) found that SMX and chemical oxygen demand (COD) could change the structures of bacterial community within a sequencing batch reactor (SBR). However, Simpson's index of diversity and the Shannon-Weiner index values showed no significant change in bacterial diversity by these compounds.…”

Section: Impact Of Phacs In the Microbial Communities Of Wwt Systemsmentioning

confidence: 99%

“…The sludge retention time (SRT) significantly influences the relative numbers of nitrifying bacteria (Xia et al 2012). These results suggest that SMX may affect removal of nitrogenous compounds from biological systems, reducing the efficiency of ammonia nitrogen disposal (Guo et al, 2017). Other data help in elucidating the fact that denitrification processes are more vulnerable than nitrification and carbon oxidization processes under SMX stress.…”

Section: Impact Of Phacs In the Microbial Communities Of Wwt Systemsmentioning

confidence: 99%

Environmental impact and biological removal processes of pharmaceutically active compounds: The particular case of sulfonamides, anticonvulsants and steroid estrogens

Leal

Mesquita

Amaral

et al. 2019

Critical Reviews in Environmental Science and Technology

View full text Add to dashboard Cite

Pharmaceutically active compounds (PhACs) have recently received wide attention in the scientific community due to their extensive consumption for human health and consequent discharge to the environment. Release of PhACs into the environment, even in trace amounts, can cause serious environmental damage. This has become a major concern and their removal from water sources is a priority. Although a few PhACs are efficiently removed in wastewater treatment plants (WWTPs), others remain recalcitrant, and their release is causing damage. In this review, the current state of the art on the biological removal processes of sulfonamide sulfamethoxazole (SMX), the anticonvulsant carbamazepine (CBZ), and steroid estrogens 17b-estradiol (E2) and 17a-ethinylestradiol (EE2) are discussed, along with their environmental impact. Other systems beyond activated sludge, such as membrane bioreactors, enzymatic membrane reactors, fungi treatments and hybrid systems are also becoming of major interest and are being evaluated for the removal of these compounds. Future perspectives are addressed.

show abstract

Sulfamethoxazole and COD increase abundance of sulfonamide resistance genes and change bacterial community structures within sequencing batch reactors

Cited by 73 publications

References 46 publications

Removal of artificial sweeteners and their effects on microbial communities in sequencing batch reactors

Removal of artificial sweeteners and their effects on microbial communities in sequencing batch reactors

Pharmaceutical compounds removal by adsorption with commercial and reused carbon coming from a drinking water treatment plant

Environmental impact and biological removal processes of pharmaceutically active compounds: The particular case of sulfonamides, anticonvulsants and steroid estrogens

Contact Info

Product

Resources

About