A critical review on the interaction of polymer particles and co-existing contaminants: Adsorption mechanism, exposure factors, effects on plankton species

Xin, Xiaying; Chen, Bing; Yang, Min; Gao, Sichen; Wang, Hongjie; Gu, Wei; Li, Xixi; Zhang, Baiyu

doi:10.1016/j.jhazmat.2022.130463

Cited by 26 publications

(6 citation statements)

References 139 publications

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“…The aerobic denitrification capacity of strains PYX97 and TSJ96 monocultures and cocultures was investigated under different reaction conditions, including varying carbon/nitrogen ratio (C/N = 1, 4, 7, 10, and 13), pH levels (pH = 5, 6, 7, 8, and 9), and shaking speed (30, 60, 90, 120, and 150 rpm). The shaking speed in the dark shaking biochemical incubator was found to be associated with the dissolved oxygen (DO) concentrations. − The relationship between DO concentrations and the shaking speed was measured: DO 30rpm/30°C = 1.6 mg/L, DO 60rpm/30°C = 3.5 mg/L, DO 90rpm/30°C = 5.2 mg/L, DO 120rpm/30°C = 6.5 mg/L, DO 150rpm/30°C = 8.4 mg/L. − The denitrification performance was evaluated by measuring the nitrate concentrations and the OD 600 values at the end of cultivation.…”

Section: Methodsmentioning

confidence: 99%

Aerobic Denitrification Promoting by Actinomycetes Coculture: Investigating Performance, Carbon Source Metabolic Characteristic, and Raw Water Restoration

Ma,

Yang,

et al. 2023

Environ. Sci. Technol.

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The coculture theory that promotes denitrification relies on effectively utilizing the resources of low-efficiency denitrification microbes. Here, the strains Streptomyces sp. PYX97 and Streptomyces sp. TSJ96 were isolated and showed lower denitrification capacity when cultured individually. However, the coculture of strains PYX97 and TSJ96 enhanced nitrogen removal (removed 96.40% of total nitrogen) and organic carbon reduction (removed 92.13% of dissolved organic carbon) under aerobic conditions. Nitrogen balance analysis indicated that coculturing enhanced the efficiency of nitrate converted into gaseous nitrogen reaching 70.42%. Meanwhile, the coculturing promoted the cell metabolism capacity and carbon source metabolic activity. The coculture strains PYX97 and TSJ96 thrived in conditions of C/N = 10, alkalescence, and 150 rpm shaking speed. The coculturing reduced total nitrogen and COD Mn in the raw water treatment by 83.32 and 84.21%, respectively. During this treatment, the cell metabolic activity and cell density increased in the coculture strains PYX97 and TSJ96 reactor. Moreover, the coculture strains could utilize aromatic protein and soluble microbial products during aerobic denitrification processes in raw water treatment. This study suggests that coculturing inefficient actinomycete strains could be a promising approach for treating polluted water bodies.

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Section: Methodsmentioning

confidence: 99%

Aerobic Denitrification Promoting by Actinomycetes Coculture: Investigating Performance, Carbon Source Metabolic Characteristic, and Raw Water Restoration

Ma,

Yang,

et al. 2023

Environ. Sci. Technol.

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“…The use of zooplankton species is common to assess the exposure to several pollutants, including MPs ( Table 1 specifies all the results discussed in the following paragraphs). Zooplankton organisms, (e.g., Daphnia spp., copepods, rotifers) are found to be highly sensitive towards microplastics, especially considering several secondary endpoints such as motility, morphology, reproduction, pulsation, digestion processes and oxidative stress [ 43 , 44 ].…”

Section: Zooplankton and Microplastics In Lab Studies: Assessing Haza...mentioning

confidence: 99%

Freshwater Lacustrine Zooplankton and Microplastic: An Issue to Be Still Explored

Lawrence,

Santolini,

Binda

et al. 2023

Toxics

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Lakes are essentially interlinked to humans as they provide water for drinking, agriculture, industrial and domestic purposes. The upsurge of plastic usage, its persistence, and potential detrimental effects on organisms cause impacts on the trophic food web of freshwater ecosystems; this issue, however, still needs to be explored. Zooplankton worldwide is commonly studied as an indicator of environmental risk in aquatic ecosystems for several pollutants. The aim of the review is to link the existing knowledge of microplastic pollution in zooplankton to assess the potential risks linked to these organisms which are at the first level of the lacustrine trophic web. A database search was conducted through the main databases to gather the relevant literature over the course of time. The sensitivity of zooplankton organisms is evident from laboratory studies, whereas several knowledge gaps exist in the understanding of mechanisms causing toxicity. This review also highlights insufficient data on field studies hampering the understanding of the pollution extent in lakes, as well as unclear trends on ecosystem–level cascading effects of microplastics (MPs) and mechanisms of toxicity (especially in combination with other pollutants). Therefore, this review provides insight into understanding the overlooked issues of microplastic in lake ecosystems to gain an accurate ecological risk assessment.

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“…The standard practice, however, is at odds with the IUPAC recommendation . Recent reviews regarding the applications of adsorption isotherms (e.g., to pollutants, contaminants, heavy metals, wastewater treatment, and metal–organic frameworks, with a few exceptions like nanocellulose) adopt q e (the actual amount adsorbed at equilibrium ,,, ) instead of the reduced surface excess Γ 2 ( n ) as has been recommended by the IUPAC . They implicitly assume Γ 2 ( n ) ≃ q e , equating the surface excess with the “actual amount adsorbed” , (i.e., the individual isotherm for sorbate), against the admonishment of the IUPAC.…”

Section: Introductionmentioning

confidence: 99%

Actual Amount Adsorbed as Estimated from the Surface Excess Isotherm

Shimizu,

Matubayasi

2024

Langmuir

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The amount of adsorption at equilibrium is commonly used for reporting solid/solution isotherms, despite the admonishment by the International Union of Pure and Applied Chemistry (IUPAC) against equating the surface excess (i.e., the measurable quantity for sorption, signifying the competitive sorption of adsorbate and solvent) with the actual amount adsorbed. The consensus, more generally stated, is that the surface excess cannot be divided into individual isotherms for sorbate and solvent unless simplifying model assumptions are introduced. Here we show, contrary to the IUPAC report, that there exists a simple method for assigning the total isotherm to the sorbate's actual amount adsorbed and to the individual solute isotherm. This requires a combination of isotherm and volumetric measurements. For dilute sorbates, we establish criteria to show if the total isotherm is dominated by the amount of sorption at the interface, in agreement with the common assumption in the practical literature. In the absence of the volume data, we propose an approximate yet more versatile method based on the specific surface area to carry out order-of-magnitude analysis to examine whether the actual amount adsorbed dominates surface excess. Application of our methods to the adsorption of sodium decyl sulfate on polystyrene latex, malachite green on activated carbons, and thiophenes on a metal−organic framework all demonstrated the dominance of the actual amount adsorbed, significantly simplifying isotherm analysis in terms of the underlying interactions (i.e., surface-sorbate and net self-interactions at the interface), eliminating the need for excess surface quantities. Analysis of fully miscible solvent-sorbate isotherms (e.g., the mixtures of organic solvents adsorbed on mesoporous silica and carbonaceous adsorbents) indicates the contributions from both sorbate and solvent isotherms.

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A critical review on the interaction of polymer particles and co-existing contaminants: Adsorption mechanism, exposure factors, effects on plankton species

Cited by 26 publications

References 139 publications

Aerobic Denitrification Promoting by Actinomycetes Coculture: Investigating Performance, Carbon Source Metabolic Characteristic, and Raw Water Restoration

Aerobic Denitrification Promoting by Actinomycetes Coculture: Investigating Performance, Carbon Source Metabolic Characteristic, and Raw Water Restoration

Freshwater Lacustrine Zooplankton and Microplastic: An Issue to Be Still Explored

Actual Amount Adsorbed as Estimated from the Surface Excess Isotherm

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