Microplastic Pollution in Water and Their Removal in Various Wastewater Treatment Plants

Khadir, Ali; Negarestani, Mehrdad; Kheradmand, Asiyeh

doi:10.1007/978-981-16-8440-1_11

Cited by 4 publications

(6 citation statements)

References 98 publications

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“…anthraquinone, and azo. Textile dyes are toxic, resistant, bioaccumulative, non-biodegradable, and carcinogenic and cause damaging consequences on the surroundings, even at low concentrations [7][8][9][10][11][12] . Classifying dyes based on the remaining particle charge after dissolution in an aqueous solution is standard.…”

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confidence: 99%

Preparation of sisal fiber/polyaniline/bio-surfactant rhamnolipid-layered double hydroxide nanocomposite for water decolorization: kinetic, equilibrium, and thermodynamic studies

Negarestani,

Tavassoli,

Reisi

et al. 2023

Sci Rep

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Sisal fiber is a potent economical biomaterial for designing composites because of its low density, high specific strength, no toxic effects, and renewability. The present study utilized sisal fiber as a starting material and subjected it to modification to produce a sisal fiber/polyaniline/bio-surfactant rhamnolipid-layered double hydroxide nanocomposite material denoted as SF@PANI@LDH@RL. The composite was evaluated for its efficacy in removing reactive orange 16 (RO16) and methylene blue (MB) from aqueous solutions. The synthesized adsorbent was characterized by FTIR, XRD, and SEM–EDS techniques; these analyses indicated the successful modification of the sisal fiber. The primary factors, including contact time, adsorbent dosage, dye concentration, temperature, and pH, were optimized for achieving the most excellent adsorption efficiency. On the one hand, methylene blue removal is enhanced in the basic solution (pH = 10). On the other hand, reactive orange 16 adsorption was favored in the acidic solution (pH = 3). The highest adsorption capacities for methylene blue and reactive orange 16 were 24.813 and 23.981 mg/g at 318 K, respectively. The Temkin isotherm model, which proves the adsorption procedure of methylene blue and reactive orange 16 could be regarded as a chemisorption procedure, supplies the most suitable explanation for the adsorption of methylene blue (R2 = 0.983) and reactive orange 16 (R2 = 0.996). Furthermore, Elovich is the best-fitting kinetic model for both dyes (R2 = 0.986 for MB and R2 = 0.987 for RO16). The recommended SF@PANI@LDH@RL adsorbent was reused six consecutive times and showed stable adsorption performance. The results demonstrate that SF@PANI@LDH@RL is a perfect adsorbent for eliminating cationic and anionic organic dyes from aqueous media.

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confidence: 99%

Preparation of sisal fiber/polyaniline/bio-surfactant rhamnolipid-layered double hydroxide nanocomposite for water decolorization: kinetic, equilibrium, and thermodynamic studies

Negarestani,

Tavassoli,

Reisi

et al. 2023

Sci Rep

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“…Other articles with 200 or more citations include Auta [65,66] discussing microbial MP degradation, as well as Edo [81], Conley [75] and Lv [119] discussing WWTPs. These results highlight the emphasis placed on interventions focused on the removal of MPs from wastewater (i.e., upstream interventions) globally, a trend evidenced by the large number of articles on wastewater treatment in this study (74.2%) and the voluminous number of articles on the removal of MPs from wastewater/sludge reviewed elsewhere [37,38,51].…”

Section: Scope Of Publications On Mp Interventions In Freshwater Systemsmentioning

confidence: 58%

“…Systems that employed a grease-skimming method during the preliminary treatment process seemed to have a large proportion of MPs removed from the treatment process, while filtration and membrane technologies seemed to be the most effective during the final stages of treatment [192]. While other reviews have shown that high efficacy rates for wastewater [51,196] and sludge [197] treatment plants are common, it should be said that very few of these treatment plants remove MPs with 100% efficacy, which implies that treatment plants are also a significant secondary source of MPs [194]. WWTPs have for some time now been recognized as perhaps one of the most significant sources of MP pollution globally [193,198,199].…”

Section: Levels Of Efficacy Across Interventionsmentioning

confidence: 99%

“…However, there was sufficient overlap across categories for us to generate a set of overarching recommendations and knowledge gaps (five each, Table 7) based on the frequency of occurrence across the articles reviewed. [1,3,11,[14][15][16][18][19][20][25][26][27]36,38,41,43,45,[47][48][49][50][51][52][53][54][55][56]189,[192][193][194][195][196][197][198][199][200]. 12 [11,51,53,195,200,237,248,251,252,255,257,…”

Section: Overview Of Knowledge Gaps and Recommendations Extracted Fro...mentioning

confidence: 99%

“…Solutions for MP pollution include interventions that prevent the release of plastics to the environment during their life cycle and physical methods of recovering or removing MPs from the natural environment (e.g., using pumps, mesh nets and other capturing devices) [3]. Strategies to recover or remove MPs have been extensively reviewed [38,[47][48][49][50] but focus largely on those associated with wastewater treatment [11,[51][52][53][54] or on specific types of interventions such as bioremediation [55]. Reviews on interventions to prevent the release of plastics to the environment focus largely on policies and regulations [43][44][45] or source control [25] and rarely focus specifically on freshwater.…”

Section: Introductionmentioning

confidence: 99%

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Application and Efficacy of Management Interventions for the Control of Microplastics in Freshwater Bodies: A Systematic Review

Munien,

Adhikari,

Reycraft

et al. 2024

Water

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This systematic review represents one of the first attempts to compare the efficacy of the full suite of management interventions developed to control (prevent or remove) microplastics (MPs) in freshwater bodies, both man-made and natural. The review also traces the evolution of research on the topic in relation to the timing of key policy and regulatory events and investigates whether interventions are being applied within regions and freshwater bodies that represent concerns in terms of MP pollution. The review incorporated bibliometric analysis and meta-analysis of 124 original research articles published on the topic between 2012 and April 2023. To supplement the key findings, data were extracted from 129 review articles on the major knowledge gaps and recommendations. The number of articles on the topic increased with each year, coinciding with a range of global policy commitments to sustainability and mitigating plastic pollution. The majority of the studies focused on MPs in general, rather than any particular particle shape or polymer type, and were conducted at wastewater/sludge treatment plants. Upstream interventions accounted for the majority of studies reviewed (91.1%). A smaller proportion (4.8%) of studies involved reduction in production and physical removal at the point of production (1.6%); treatment-related objectives such as removal through filtration and separation and the combination of these with other technologies in hybrid systems were dominant. Of the physical, chemical and biological methods/technologies (and combinations thereof) employed, physical types (particularly membrane filtration) were most common. The majority of the studies within the wastewater/sludge, stormwater and in situ water/sediment categories exhibited removal efficacies >90%. Although new interventions are constantly being developed under laboratory conditions, their scalability and suitability across different settings are uncertain. Downstream interventions lack sustainability without effective upstream interventions. Though in situ methods are technically achievable, they may not be feasible in resource-limited settings.

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A comparative study of black-box and white-box data-driven methods to predict landfill leachate permeability

Ghasemi

Samadi

Soleimanian

et al. 2023

Environ Monit Assess

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Microplastic Pollution in Water and Their Removal in Various Wastewater Treatment Plants

Cited by 4 publications

References 98 publications

Preparation of sisal fiber/polyaniline/bio-surfactant rhamnolipid-layered double hydroxide nanocomposite for water decolorization: kinetic, equilibrium, and thermodynamic studies

Preparation of sisal fiber/polyaniline/bio-surfactant rhamnolipid-layered double hydroxide nanocomposite for water decolorization: kinetic, equilibrium, and thermodynamic studies

Application and Efficacy of Management Interventions for the Control of Microplastics in Freshwater Bodies: A Systematic Review

A comparative study of black-box and white-box data-driven methods to predict landfill leachate permeability

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