Removal performance and optimisation of pharmaceutical micropollutants from synthetic domestic wastewater by hybrid treatment

Mojiri, Amin; Zhou, John L.; Vakili, Mohammadtaghi; Le, Hiep Van

doi:10.1016/j.jconhyd.2020.103736

Cited by 31 publications

(12 citation statements)

References 43 publications

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“…Based on the study by Mojiri et al [18], synthetic wastewater was contaminated with SMX and OFX. SMX and OFX (Table 2) were purchased from Sigma-Aldrich Co. (Petaling Jaya, Malaysia) with a purity of ≥98%.…”

Section: Methodsmentioning

confidence: 99%

“…The mobile phase was methanol and deionized water (1:1) with a flow rate of 1.0 mL min −1 . The 3σ/s was [18] considered to assess the limit of detection (LOD).…”

Section: Methodsmentioning

confidence: 99%

“…Marine diatoms are considered for almost 40% of the global oceanic organic carbon production per year and play a role for up to 25% of the global CO 2 fixation [17]. Chaetoceros muelleri (Table 1) has been commonly applied as live feed in fish aquaculture due to its good nutritional properties [18]. Only a few research studies have reported to use marine diatoms for wastewater treatment [13] and especially antibiotic removal.…”

Section: Introductionmentioning

confidence: 99%

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The Potential of Chaetoceros muelleri in Bioremediation of Antibiotics: Performance and Optimization

Mojiri

Baharlooeian

Zahed

2021

IJERPH

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Antibiotics are frequently applied to treat bacterial infections in humans and animals. However, most consumed antibiotics are excreted into wastewater as metabolites or in their original form. Therefore, removal of antibiotics from aquatic environments is of high research interest. In this study, we investigated the removal of sulfamethoxazole (SMX) and ofloxacin (OFX) with Chaetoceros muelleri, a marine diatom. The optimization process was conducted using response surface methodology (RSM) with two independent parameters, i.e., the initial concentration of antibiotics and contact time. The optimum removal of SMX and OFX were 39.8% (0.19 mg L−1) and 42.5% (0.21 mg L−1) at the initial concentration (0.5 mg L−1) and contact time (6.3 days). Apart from that, the toxicity effect of antibiotics on the diatom was monitored in different SMX and OFX concentrations (0 to 50 mg L−1). The protein (mg L−1) and carotenoid (μg L−1) content increased when the antibiotic concentration increased up to 20 mg L−1, while cell viability was not significantly affected up to 20 mg L−1 of antibiotic concentration. Protein content, carotenoid, and cell viability decreased during high antibiotic concentrations (more than 20 to 30 mg L−1). This study revealed that the use of Chaetoceros muelleri is an appealing solution to remove certain antibiotics from wastewater.

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Section: Methodsmentioning

confidence: 99%

“…The mobile phase was methanol and deionized water (1:1) with a flow rate of 1.0 mL min −1 . The 3σ/s was [18] considered to assess the limit of detection (LOD).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Potential of Chaetoceros muelleri in Bioremediation of Antibiotics: Performance and Optimization

Mojiri

Baharlooeian

Zahed

2021

IJERPH

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“…CBZ, SMT and TRA of ≥98% purity (Table 1), distilled water and methanol were supplied by Sigma-Aldrich Co (Petaling Jaya, Malaysia). Stock solutions (1 g L −1 ) were prepared by individually dissolving the compounds in distilled water [28]. Chaetoceros muelleri was obtained from the photobioreactor in our laboratory.…”

Section: Methodsmentioning

confidence: 99%

“…The mobile phases were acetonitrile and NaH 2 PO 4 in a ratio of 40/60. The limit of detection was determined using the expression 3σ/s, where σ is the standard deviation of the peak and s defines the slope of the corresponding calibration curve [28]. Biochar (derived from agricultural wastes) was used in this study.…”

Section: Organic Micropollutant Measurements and Biochar Characteristic Monitoringmentioning

confidence: 99%

Removal of Pharmaceutical Micropollutants with Integrated Biochar and Marine Microalgae

et al. 2020

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Using microalgae to remove pharmaceuticals and personal care products (PPCPs) micropollutants (MPs) have attracted considerable interest. However, high concentrations of persistent PPCPs can reduce the performance of microalgae in remediating PPCPs. Three persistent PPCPs, namely, carbamazepine (CBZ), sulfamethazine (SMT) and tramadol (TRA), were treated with a combination of Chaetoceros muelleri and biochar in a photobioreactor during this study. Two reactors were run. The first reactor comprised Chaetoceros muelleri, as the control, and the second reactor comprised Chaetoceros muelleri and biochar. The second reactor showed a better performance in removing PPCPs. Through the response surface methodology, 68.9% (0.330 mg L−1) of CBZ, 64.8% (0.311 mg L−1) of SMT and 69.3% (0.332 mg L−1) of TRA were removed at the initial concentrations of MPs (0.48 mg L−1) and contact time of 8.1 days. An artificial neural network was used in optimising elimination efficiency for each MP. The rational mean squared errors and high R2 values showed that the removal of PPCPs was optimised. Moreover, the effects of PPCPs concentration (0–100 mg L−1) on Chaetoceros muelleri were studied. Low PPCP concentrations (<40 mg L−1) increased the amounts of chlorophyll and proteins in the microalgae. However, cell viability, chlorophyll and protein contents dramatically decreased with increasing PPCPs concentrations (>40 mg L−1).

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Fate and Transport of Microconstituents in Wastewater Treatment Plants

Yang

Huang

Chen

et al. 2023

Microconstituents in the Environment

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Removal performance and optimisation of pharmaceutical micropollutants from synthetic domestic wastewater by hybrid treatment

Cited by 31 publications

References 43 publications

The Potential of Chaetoceros muelleri in Bioremediation of Antibiotics: Performance and Optimization

The Potential of Chaetoceros muelleri in Bioremediation of Antibiotics: Performance and Optimization

Removal of Pharmaceutical Micropollutants with Integrated Biochar and Marine Microalgae

Fate and Transport of Microconstituents in Wastewater Treatment Plants

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