Removal of METH through Tertiary or Advanced Treatment in a WWTP

Ponce-Arguello, Mariuxi; Abad-Sarango, Viviana; Crisanto-Perrazo, Tania; Toulkeridis, Theofilos

doi:10.3390/w14111807

Cited by 5 publications

(2 citation statements)

References 107 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, the performance of the mag‐CD microrobots should be compared with current tertiary or advanced treatments implemented in wastewater treatment plants for MA removal. [ 7 ] This work demonstrates that the performance of the mag‐CD microrobots is not limited by specific working conditions, such as pH, as in the case of Fenton reaction treatments. Unlike ozonation, their activity does not involve a transformation to products of higher toxicity and risk for aquatic life, and it occurs in a fuel‐free context.…”

Section: Resultsmentioning

confidence: 90%

“…The growing consumption of this highly addictive element, as well as its use as a medical treatment for some mental health diseases, [ 3 ] has led to the appearance of an increasing number of clandestine manufacturers as well. Despite official guidelines on MA decontamination, [ 4,5 ] the inefficiency of current remediation methods [ 6,7 ] has caused the detection of increasing MA concentrations in wastewater analyses in up to 40 European cities in the 2021–2022 period. [ 1 ] Besides, a harmful effect on aquatic ecosystems has been proved by the behavior alteration of fish.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

Mayorga–Burrezo,

Mayorga–Martinez,

Kuchař

et al. 2024

Small

View full text Add to dashboard Cite

The growing consumption of drugs of abuse together with the inefficiency of the current wastewater treatment plants toward their presence has resulted in an emergent class of pollutants. Thus, the development of alternative approaches to remediate this environmental threat is urgently needed. Microrobots, combining autonomous motion with great tunability for the development of specific tasks, have turned into promising candidates to take on the challenge. Here, hybrid urchin‐like hematite (α‐Fe2O3) microparticles carrying magnetite (Fe3O4) nanoparticles and surface functionalization with organic β‐cyclodextrin (CD) molecules are prepared with the aim of on‐the‐fly encapsulation of illicit drugs into the linked CD cavities of moving microrobots. The resulting mag‐CD microrobots are tested against methamphetamine (MA), proving their ability for the removal of this psychoactive substance. A dramatically enhanced capture of MA from water with active magnetically powered microrobots when compared with static passive CD‐modified particles is demonstrated. This work shows the advantages of enhanced mass transfer provided by the externally controlled magnetic navigation in microrobots that together with the versatility of their design is an efficient strategy to clean polluted waters.

show abstract

Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

Mayorga–Burrezo,

Mayorga–Martinez,

Kuchař

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

Determination of Soil Contamination Due to the Influence of Cemeteries for the Surrounding Land and People in Central Ecuador—Worldwide Implications

Abad-Sarango,

Crisanto-Perrazo,

Guevara-García

et al. 2024

Land

View full text Add to dashboard Cite

Human decomposition processes generate pulses of nutrients, such as carbon (C) and nitrogen (N) in the form of ammonium and nitrate (NO3−), which are released into the surrounding environment. The little exploration related to the potential of cadaveric leachate to influence the physical chemistry and biology of the soil makes it difficult to obtain data and scientific evidence, and subsequently the predominant objective of the current study was to determine soil contamination through the analysis of parameters of physical chemistry that included organic matter (OM), NO3−, texture, humidity, and pH. Soil samples were taken at different depths in two temporary trials (the dry and rainy seasons) in central Ecuador. The Kruskal–Wallace and ANOVA statistical analyses determined significant differences in relation to the sampling sections and by categories, while there were no significant differences in the inter-season analysis; therefore, the study was based on the data obtained in the dry season. The results indicate a tendency towards contamination in cemeteries categorized as critical, that is, moderate, light, and not suitable due to the high values of OM and humidity measured. On the contrary, the soils that corresponded to the cemeteries classified as suitable yielded low values of the analyzed parameters, which corroborates their capacity for the present and future location of cemeteries. Monitoring and managing soil health is crucial to ensure sustainable environmental practices and protect public health; nonetheless, additional research is suggested to confirm the findings of the current study.

show abstract

RETRACTED: Evaluation of a Microbial Consortium and Selection of a Support in an Anaerobic Reactor Directed to the Bio-Treatment of Wastewater of the Textile Industry

et al. 2022

View full text Add to dashboard Cite

The dyeing processes of the textile industry generate waste products such as unfixed dyes, phenolic surfactants and heavy metals. These constitute an environmental problem for the bodies receiving their wastewater due to the interruption of the lighting in the aquatic environment and the release of toxic molecules by the decomposition of the dyes. There are several treatment methods, of which biological methods are the most feasible. In the current study, the I5-ESPE microbial consortium was obtained and evaluated on the components of textile wastewater, in addition to the selection of a support for an anaerobic reactor that is directed to the treatment of effluents from the textile industry. Two microbial consortia were achieved by exposure to air in Pseudomonas culture medium modified with direct dyes Red 23 and Blue 106, evaluating their removal capacity of the reactive dyes Navy 171, Red 141 and Yellow 84. The consortium I5-ESPE was selected for its greatest action, yielding approximately 95% removal. Its tolerance to phenol was also determined; we reached 98% removal of chromium(VI) and 67% of total chromium under anaerobic conditions and some 25% zinc in aerobiosis. The reduction in the chemical oxygen demand (COD) was evaluated with (57.03%) and without (31.47%) aeration. The species Staphylococcus xylosus, Saccharomyces cerevisiae and Candida tropicalis were identified prior to treatment of textile wastewater, as well as Enterobacter cloacae and Bacillus megaterium after treatment. Bacillus subtilis was present throughout the process. We evaluated coconut shell as a support for an anaerobic reactor, and it demonstrated better physical characteristics than plastic and common rock, in addition to similar results in the reduction in COD of 50%, volatile suspended solids of 2545.46 mg/L and total suspended solids of 282.82 mg/L.

show abstract

Removal of METH through Tertiary or Advanced Treatment in a WWTP

Cited by 5 publications

References 107 publications

Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

Determination of Soil Contamination Due to the Influence of Cemeteries for the Surrounding Land and People in Central Ecuador—Worldwide Implications

RETRACTED: Evaluation of a Microbial Consortium and Selection of a Support in an Anaerobic Reactor Directed to the Bio-Treatment of Wastewater of the Textile Industry

Contact Info

Product

Resources

About