Nano-sorbent materials for pharmaceutical-based wastewater effluents - An overview

Aguilar-Pérez, Katya M.; Avilés-Castrillo, J.I.; Ruiz-Pulido, Gustavo

doi:10.1016/j.cscee.2020.100028

Cited by 66 publications

(11 citation statements)

References 50 publications

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“…However, when the ratio between D2 interband (≈1200 cm −1 ) and G band was calculated, a difference was observed between AB7 (I D2 / I G � 1.12) and AB7-f (I D2 /I G � 0.46). e D2 interband, also called D * has been attributed sp 2 -sp 3 bond in carbon lattice [17], and when its value decreases it can be assumed that the crystallinity in the nanodomains increases, therefore, AB7-f has a more crystalline nanodomain structure than AB7. is occurs because microwave heating promotes the release of carbon and oxygen from the carbon material, generating small conjugated graphitic domains, which improves crystallinity [18].…”

Section: Resultsmentioning

confidence: 99%

“…It is believed that nearly 80-90% of all industrial wastewater in developing countries is discharged untreated, causing severe environmental damage [1]. Among the various types of e uents, the one from the pharmaceutical must be treated with utmost vigilance due to the presence of organic pollutants and drug components [2]. In addition, the presence of pharmaceuticals in wastewater does not only come from industrial e uents, it is also found in domestic wastewater [3].…”

Section: Introductionmentioning

confidence: 99%

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Green Power Generation by Microbial Fuel Cells Using Pharmaceutical Wastewater as Substrate and Electroactive Biofilms (Bacteria/Biocarbon)

Alonso-Lemus

Cobos-Reyes

Figueroa-Torres

et al. 2022

Journal of Chemistry

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In this work, electroactive biofilms of Bacillus subtilis (B. subtilis) or Escherichia coli (E. coli) were supported on functionalized biocarbon (AB7-F), which was synthesized from waste leather and was used as catalysts to develop bioanodes for microbial fuel cells (MFCs). This way, bioanodes were fabricated and further evaluated in a three-electrode cell using pharmaceutical wastewater (PWW) as substrate. The electrochemical measurements showed a higher performance of the bioanode based on AB7-f+ B. subtilis to oxidize organic matter from PWW. The polarization curves in the dual-chamber MFC showed that AB7-f+ B. subtilis bioanode can generate an open circuit voltage of 602 mV and a power density of 77 mW m−2. During long-term tests of the MFC, a variation in performance was observed, with a maximum of 96.3 mW m−2 on day 7. Such variation was attributed to the development of more stable biofilm as well as consumption of some compounds metabolized by bacteria grown on the bioanode. The results showed that AB7-f+ B. subtilis can be used as bioanode for MFCs with PWW as substrate removing around 45% of the chemical oxygen demand (COD).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Green Power Generation by Microbial Fuel Cells Using Pharmaceutical Wastewater as Substrate and Electroactive Biofilms (Bacteria/Biocarbon)

Alonso-Lemus

Cobos-Reyes

Figueroa-Torres

et al. 2022

Journal of Chemistry

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“…Nanoscale-sorbent materials offer distinct properties such as high absorption, large surface area, environmentally safe manufacture and a strong affinity for organic and inorganic compounds. This study lays the groundwork for future research into many of the present nanoscale materials for the remediation of pharma industrial wastewaters (Shehata et al 2019;Aguilar-Perez et al 2020).…”

Section: Introductionmentioning

confidence: 90%

Integrated system for recycling and treatment of hazardous pharmaceutical wastewater

Abdelfattah

Abuarab

Mostafa

et al. 2022

Int. J. Environ. Sci. Technol.

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This study aimed to investigate an integrated system that can deal with different pharmaceutical wastewaters. Pharmaceutical wastewater was subjected to biological, chemical and advanced oxidation according to its pollutant’s nature. Wastewater with high total suspended solids (TSS 480 mg/L) was subjected to a conventional chemical treatment process utilizing different coagulants. The best results were obtained by using calcium oxide and alum added with calcium oxide where the removal efficiency of COD was 46.8% and 51%. Highly loaded pharmaceutical wastewater (COD 9700 mg/L, BOD/COD 0.16) had been subjected to Fenton oxidation, the removal of COD reached 80.4%, and the ratio of BOD/COD is enhanced to 0.6. Photocatalysis by using different nanomaterials was applied to pharmaceutical wastewater containing 10 mg/L of phenols. Phenol is completely removed by using mesoporous TiO2 after 90-min irradiation and after 120 min in the case of TiO2/P25 and TiO2/UV 100 nanocomposites, while it is removed by 40% in case of using mesoporous TiO2/Ta2O5. Effluent-treated water from previous routes was subjected to biological treatment and followed with disinfection by using UV as post-treatment. The final COD was 40, and it matches with the Egyptian practice code for water reuse in agriculture (ECP 501 in Egyptian code of practice for the use of treated municipal wastewater for agricultural purposes. The ministry of Housing Utilities and Urban Communities., n.d. No title, 2015). Results showed also using treated wastewater in irrigation of barley and bean seeds achieved germination ratio up to 71% in barely and 70% in bean compared with that irrigated with Nile water, which reached 70% and 75%, while it was about 16.6% and 30% in case of irrigation with untreated wastewater (Jeong et al. in Water (Switzerland). 10.3390/w8040169, 2016).

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“…In addition, the prevalence of chronic diseases, the development of science and technology, and the growing world population have contributed to the increasing presence of pharmaceutically active compounds in the aquatic environment [66••, 67]. These pollutants are discharged by various antibiotics and medicines, including those available without prescription [68,69]. As in in the case of dyes, pharmaceutical pollutants can be degraded by biological methods (especially using immobilized oxidoreductases) into simpler and safer derivatives [70,71].…”

Section: Pharmaceutically Active Compoundsmentioning

confidence: 99%

Functionalized Materials as a Versatile Platform for Enzyme Immobilization in Wastewater Treatment

Kołodziejczak-Radzimska

Nghiem

Jesionowski

2021

Curr Pollution Rep

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Purpose of Review Untreated wastewater discharge can significantly and negatively impact the state of the environment. Rapid industrialization and economic development have directly contributed to land and water pollution resulting from the application of many chemicals such as organic dyes, pharmaceuticals, and industrial reagents. The removal of these chemicals before effluent discharge is crucial for environmental protection. This review aims to explore the importance of functionalized materials in the preparation of biocatalytic systems and consider their application in eliminating water pollutants. Recent Findings Wastewater treatment methods can be classified into three groups: (i) chemical (e.g., chemical oxidation and ozonation), (ii) physical (e.g., membrane separation and ion exchange), and (iii) biological processes. Biological treatment is the most widely used method due to its cost-effectiveness and eco-friendliness. In particular, the use of immobilized enzymes has recently become more attractive as a result of scientific progress in advanced material synthesis. The selection of an appropriate support plays an important role in the preparation of such biologically active systems. Recent studies have demonstrated the use of various materials for enzyme immobilization in the purification of water. Summary This review identifies and discusses different biocatalytic systems used in the enzymatic degradation of various water pollutants. Materials functionalized by specific groups can serve as good support matrices for enzyme immobilization, providing chemical and thermal stability to support catalytic reactions. Enzymatic biocatalysis converts the pollutants into simpler products, which are usually less toxic than their parents. Due to immobilization, the enzyme can be used over multiple cycles to reduce the cost of wastewater treatment. Future studies in this field should focus on developing new platforms for enzyme immobilization in order to improve degradation efficiency.

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Nano-sorbent materials for pharmaceutical-based wastewater effluents - An overview

Cited by 66 publications

References 50 publications

Green Power Generation by Microbial Fuel Cells Using Pharmaceutical Wastewater as Substrate and Electroactive Biofilms (Bacteria/Biocarbon)

Green Power Generation by Microbial Fuel Cells Using Pharmaceutical Wastewater as Substrate and Electroactive Biofilms (Bacteria/Biocarbon)

Integrated system for recycling and treatment of hazardous pharmaceutical wastewater

Functionalized Materials as a Versatile Platform for Enzyme Immobilization in Wastewater Treatment

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