Effects of nitrogen on the removal of dibutyl phthalate from surface water in the presence of Potamogeton crispus L.

Chi, Jie; Xiaodan, Cai

doi:10.1016/j.ecoleng.2012.01.027

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…27,31 Among the PAEs, dibutyl phthalate (DBP) and diethyl phthalate (DEP) are ortho-short chain PAEs, which are used much more than the other forms of PAEs and are listed as Class 2 priority pollutants by the U.S. Environmental Protection Agency and Level 4 toxic chemical substances in Taiwan. [32][33][34] DBP enters the environment through production, disposal in industrial and municipal landfills, waste incineration, and leaching from consumer products during use or after disposal 35 and has been detected in various environmental matricies. [36][37][38] Likewise, DEP, which is one of the low molecular weight phthalate esters, is used as a plasticizer in many products [39][40][41] and enters the aquatic environment from industries and plastic and commercial products.…”

Section: Introductionmentioning

confidence: 99%

Potential effects of low molecular weight phthalate esters (C₁₆H₂₂O₄and C₁₂H₁₄O₄) on the freshwater fish Cyprinus carpio

et al. 2017

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The aim of the present study is to assess the toxic effect of dibutyl phthalate (DBP) and diethyl phthalate (DEP) on the freshwater fish . The median lethal concentrations of DBP and DEP for 96 h are found to be 35 and 53 mg L, respectively. Fish were exposed to 3.5 mg L (Treatment I) and 1.75 mg L (Treatment II) of DBP and 5.3 mg L (Treatment I) and 2.65 mg L (Treatment II) of DEP for a period of 35 days. The DBP and DEP exposed fish show a concentration based toxic effect on the selected parameters of this study. The hematological parameters, such as hemoglobin (Hb), hematocrit (Hct) and erythrocyte (RBC), were found to decrease in the DBP and DEP treated fish, whereas their leucocyte (WBC) count increased compared to that of the control groups. A biphasic response is noted in the erythrocyte indices, such as mean cellular volume (MCV), mean cellular hemoglobin (MCH) and mean cellular hemoglobin concentration (MCHC), throughout the study period. Exposure to DBP and DEP caused a significant ( < 0.05) decrease in sodium (Na), potassium (K), and chloride (Cl) levels in the gill and brain of the fish throughout the study period when compared to that of their respective controls. The plasma protein level decreased in all the treatments, whereas the plasma glucose level significantly increased in the DBP and DEP exposed fish. Maximum inhibition of Na/K-ATPase activity was noticed in the gill and brain of the fish exposed to DBP and DEP. The cholinesterase (ChE) activity in the brain of the fish significantly decreased throughout the study period. A significant ( < 0.05) increase in glutamate oxaloacetate transaminase (GOT) and glutamic pyruvate transaminase (GPT) activity was noted in the fish exposed to both toxicants. The antioxidant enzymatic parameters such as superoxide dismutase (SOD) and catalase (CAT) activities were found to decrease in the gill and liver of the DBP and DEP treated fish, whereas a significant ( < 0.05) increase in lipid peroxidation (LPO) was observed. The above mentioned parameters could be used as potential biomarkers in clinical trials for the assessment of plasticizers. This study provides indispensable information towards future research on the effect of plasticizers on non-target organisms including humans.

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Section: Introductionmentioning

confidence: 99%

Potential effects of low molecular weight phthalate esters (C₁₆H₂₂O₄and C₁₂H₁₄O₄) on the freshwater fish Cyprinus carpio

et al. 2017

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“…[7][8][9][10] The United States Environmental Protection Agency, the European Union, and the Chinese National Environmental Monitoring Center have classified DBP as a top priority pollutant. [3,11,12] Most materials containing DBP are disposed of with other municipal solid waste in landfill sites, and these sites are, therefore, important sources of DBP pollution. Biodegradation has been found to play an important role in the fate of DBP under the conditions that exist in landfill sites.…”

Section: Introductionmentioning

confidence: 99%

The influences of different organic fractions in refuse on the sorption and bioavailability of dibutyl phthalate

Fang

Shen

2015

Chemistry and Ecology

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The structure and composition of the organic matter in landfilled refuse might have an influence on the migration and transformation of dibutyl phthalate (DBP). Humic acid (HA) and humin (HU) were separated from aged-refuse to determine the influences of different organic fractions in the refuse on the sorption and bioavailability of DBP. The sorption kinetics and isotherms for the sorption of DBP to HA, HU, and whole refuse were determined. The results showed that the sorption constants (K) and nonlinearities decreased in the order HU > whole refuse > HA. The HA had lower K values than did the other refuse fractions, and it retarded the biodegradation of DBP over a short degradation period (48 h). Increasing the amount of HA present caused the amount of DBP that was biodegraded to decrease significantly, 81.3% of the DBP sorbed to HA being degraded in the original experiments after 48 h but 21.8% of the DBP being degraded when three times as much HA was used. Similar results were not observed when the amount of HU used was changed. These findings suggest that HA plays an important role in the biodegradation of DBP adsorbed by refuse.

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“…Accordingly, broad-scale investigations of the biodegradation of DBP have been conducted. [7][8][9] Additionally, several DBP-degrading bacterial strains belonging to the genera Sphingomonas, Pseudomonas, Rhodococcus, Microbacterium, and Gordonia have been isolated from different environments including activated sludge, mangrove sediment, and wastewater. [4][5][6][10][11][12][13][14] *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Degradation of dibutyl phthalate in refuse from different phases of landfill by its dominant bacterial strain,Enterobactersp. T1

Fang

Shen

2014

Chemistry and Ecology

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A facultative bacterial strain isolated from municipal solid waste (MSW) obtained from a simulated landfill bioreactor was found to have the ability to use dibutyl phthalate (DBP) as its sole source of carbon and energy. Based on its morphology, physiochemical characteristics, and 16S rDNA sequence, the strain was identified as Enterobacter sp. T1. Evaluation of the degradation of DBP in refuse collected during the initial, acidic, and methanogenic phases of landfill before and after inoculation with Enterobacter sp. T1 revealed that the degradation fits first-order kinetic models for refuse from all phases. The removal rate of DBP in the refuse of the methanogenic phase increased from 59.3% to 74.5% when Enterobacter T1 was added. The half-life of DBP in refuse from the methanogenic phase that was inoculated with Enterobacter T1 decreased by 36.7% relative to uninoculated samples, and the intermediate products monobutyl phthalate (MBP) and phthalic acid were detected in all samples. These results provide new evidence for the potential of applying Enterobacter sp. for phthalic acid ester-polluted area remediation.

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Effects of nitrogen on the removal of dibutyl phthalate from surface water in the presence of Potamogeton crispus L.

Cited by 10 publications

References 26 publications

Potential effects of low molecular weight phthalate esters (C₁₆H₂₂O₄and C₁₂H₁₄O₄) on the freshwater fish Cyprinus carpio

Potential effects of low molecular weight phthalate esters (C₁₆H₂₂O₄and C₁₂H₁₄O₄) on the freshwater fish Cyprinus carpio

The influences of different organic fractions in refuse on the sorption and bioavailability of dibutyl phthalate

Degradation of dibutyl phthalate in refuse from different phases of landfill by its dominant bacterial strain,Enterobactersp. T1

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Effects of nitrogen on the removal of dibutyl phthalate from surface water in the presence of Potamogeton crispus L.

Cited by 10 publications

References 26 publications

Potential effects of low molecular weight phthalate esters (C16H22O4and C12H14O4) on the freshwater fish Cyprinus carpio

Potential effects of low molecular weight phthalate esters (C16H22O4and C12H14O4) on the freshwater fish Cyprinus carpio

The influences of different organic fractions in refuse on the sorption and bioavailability of dibutyl phthalate

Degradation of dibutyl phthalate in refuse from different phases of landfill by its dominant bacterial strain,Enterobactersp. T1

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Product

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Potential effects of low molecular weight phthalate esters (C₁₆H₂₂O₄and C₁₂H₁₄O₄) on the freshwater fish Cyprinus carpio

Potential effects of low molecular weight phthalate esters (C₁₆H₂₂O₄and C₁₂H₁₄O₄) on the freshwater fish Cyprinus carpio