Article
Engineering, Environmental
Fu-Rong Xiu, Xiaochun Tan, Yingying Qi, Mengmeng Wang
Summary: A synergistic treatment strategy was developed using subcritical water process to treat DEHP-rich PVC waste and urine wastewater. The optimal conditions achieved high dechlorination ratio, denitrification ratio, and DEHP decomposition ratio.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Furong Zhang, Hui Chen, Yuxuan Liu, Mingxin Wang
Summary: This paper explores the release of phthalic acid esters (PAEs) from different types of microplastics (MPs) under various environmental conditions and the interactions between them. The results show that the type of MPs, single environmental factors, and combined environmental factors have a significant impact on the release of di(2-ethylhexyl) phthalate (DEHP). Additionally, the competitive adsorption of different PAEs affects the adsorption capacity of DEHP, dibutyl phthalate (DBP), and diisobutyl phthalate (DIBP). These findings contribute to predicting the potential release of toxic additives from MPs under different environmental conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Nanik Retno Buwono, Yenny Risjani, Agoes Soegianto
Summary: The first investigation of microplastics in G. affinis from the Brantas River was conducted. Microplastics were found in higher concentrations downstream than upstream, with a positive relationship between microplastic particle concentration and fish length. The shape and color of microplastics varied at different sites.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biotechnology & Applied Microbiology
S. Shariati, C. Ebenau-Jehle, A. A. Pourbabaee, H. A. Alikhani, M. Rodriguez-Franco, M. Agne, M. Jacoby, R. Geiger, F. Shariati, M. Boll
Summary: The research focused on bacterial degradation of phthalic acid esters at a landfill in Iran, identifying Paenarthrobacter sp. Shss as an efficient degrader of di-n-butyl phthalate, a common plasticizer exhibiting harmful effects. The study highlights the potential role of this bacterium in eliminating phthalic acid esters at contaminated landfills.
Article
Environmental Sciences
Kexue Liu, Na Li, Jia Ding, Na Chen, Suo Wang, Qian Wang, Xiangfeng Yao, Xianxu Li, Jun Wang, Huanshun Yin
Summary: In this study, the Bi2O2CO3/Bi2S3 heterojunction was prepared using a one-step hydrothermal method, with Bi(NO3)3 as the Bi source, Na2S as the sulfur source, and CO(NH2)2 as the C source. The loading of Bi2S3 was adjusted by varying the content of Na2S. The prepared Bi2O2CO3/Bi2S3 exhibited strong photocatalytic activity towards dibutyl phthalate (DBP) degradation, with a degradation rate of 73.6% under visible light irradiation for 3 hours, which was 3.5 and 1.87 times higher than that of Bi2O2CO3 and Bi2S3, respectively. Furthermore, the mechanism behind the enhanced photoactivity was investigated, and it was found that the formation of the heterojunction structure inhibited the recombination of photogenerated electron-hole pairs, improved visible light absorption, and accelerated the migration rate of photogenerated electrons. The S-scheme heterojunction model was consistent with the analysis of radical formation and energy band structure, and this heterojunction allowed for high photocatalytic activity of Bi2O2CO3/Bi2S3. The prepared photocatalyst also exhibited acceptable cycle application stability, providing a facile synthesis technique and a promising platform for DBP degradation.
Article
Environmental Sciences
Chien-Che Hung, Tzu-Hsien Yu, Sailent Rizki Sari Simaremare, Chia-Jung Hsieh, Lih-Ming Yiin
Summary: A field study in 47 rural homes in Taiwan examined the associations between PAE residue in dust and home characteristics/living habits. The study found that DEHP in dust was significantly associated with floor cleaning frequency and use of detergents, while DiBP was related to the use of plastic wraps and disposable cups.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Tong Zhang, Bianbian Ma, Lijun Wang
Summary: This study investigated the characteristics, bio-accessibility, and dietary exposure of 22 phthalic acid esters (PAEs) in grain, vegetable, and fruit samples from Xi'an City in Northwest China. The results showed that PAEs were widely detected in all samples, with the major PAEs being DnBP and DEHP in grains, and DiBP, DnBP, DEHP, DiNP, and DiDP in vegetables and fruits. The estimated daily intakes (EDIs) of PAEs in human dietary exposure were lower than the safety standards, except for DnBP in grains and DiBP in vegetables. Therefore, special attention should be paid to these two PAEs in terms of dietary exposure.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Sujata Mandal, S. Suresh, N. Priya, Ravi Banothu, R. Mohan, K. J. Sreeram
Summary: The migration of phthalate in footwear has been studied, and it has been found that environmental conditions and solvents in the footwear can affect the migration rate. The impact of migration on the footwear sole and insole has been examined through various analysis methods.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2022)
Article
Chemistry, Multidisciplinary
Liu Yang, Yunjian Ma, Yebao Chen, Frank Hollmann, Yonghua Wang
Summary: This article reports a new biocatalytic strategy for the complete hydrolysis of phthalic acid esters (PAEs) using a bienzymatic degradation system. The researchers optimized the reaction conditions and investigated the substrate scope, finding that PAEs with relatively small alcohols were degraded to over 90%. This study provides a potential doable approach for the efficient degradation of PAEs.
Article
Food Science & Technology
Alvaro Santana-Mayor, Ruth Rodriguez-Ramos, Antonio V. Herrera-Herrera, Barbara Socas-Rodriguez, Miguel Angel Rodriguez-Delgado
Summary: In this study, a natural deep eutectic solvent was used for the liquid-liquid microextraction of phthalates and adipates from bottled waters. The methodology was validated and optimal conditions were determined. The presence of plasticizers in different brands of bottled water was studied, and it was found that residue introduction during production or by the water supply was the main source. The estimated daily intake was lower than the total daily intake set by the European Food Safety Authority.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Agricultural Engineering
Esin Balci, Emilio Rosales, Marta Pazos, Aysun Sofuoglu, Maria Angeles Sanroman
Summary: This study investigated the use of bionanocomposites for the removal of phthalic acid esters from the environment. The immobilization of Bacillus subtilis esterase onto halloysite supported in chitosan and alginate beads showed promise as a green approach. The chitosan-based bionanocomposite exhibited the best performance in batch tests and continuous flow reactor experiments, effectively degrading DEHP and DBP.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Chemical
Chengyun Zhou, Eydhah Almatrafi, Xiaofeng Tang, Binbin Shao, Wu Xia, Biao Song, Weiping Xiong, Wenjun Wang, Hai Guo, Sha Chen, Guangming Zeng
Summary: This study investigates the effect of the position of organic acid functional groups on the performance of carbon nitride as a photocatalyst for sulfamethazine (SMZ) removal. It was found that phthalic acid modified carbon nitride exhibited the best degradation performance for SMZ removal, with (center dot)O2- and h(+) playing a significant role in the photocatalytic process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Valentin Chapon, Jean-Marc Brignon, Johnny Gasperi
Summary: DEHP is a plasticizer widely used in the plastic industry to provide softness to PVC. Despite regulations, it remains a widespread contaminant in EU watersheds. The study shows that limiting its use will not significantly reduce future emissions due to high existing stocks and long-term presence of PVC waste in landfills. This highlights the importance of avoiding the use of hazardous chemicals with persistent characteristics in products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Fu-Rong Xiu, Longsheng Zhan, Yingying Qi, Xinyue Lei, Jiali Wang, Haipeng Zhou, Wenting Shao
Summary: This study developed a synergetic and high-efficiency treatment of waste tantalum capacitors (WTCs) and polyvinyl chloride (PVC) using subcritical water process. The treatment significantly reduced the temperature and reaction time for metal tantalum recovery from WTCs, and improved the dechlorination efficiency of PVC. The optimized conditions resulted in 100% resin conversion efficiency of WTCs and 97.39% dechlorination efficiency of PVC. The interaction between decomposition products of WTCs and PVC produced a high level of benzoic acid.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Zhuo Chen, Qianying Wu, Ying Xu, Jinhan Mo
Summary: Organic films were observed to preferentially form on impermeable substrates with certain surface topography, and the surface uniformity of the substrates and viscosity of PAE molecules played critical roles in determining the adhesion forces. The growth of organic films on these substrates did not reach adsorption equilibrium even after long-term exposure, suggesting the possibility of multilayer adsorption. The growth rates of organic films in saturated gas-phase PAE concentrations were found to be significantly lower compared to previous studies with exposure to multiple pollutants simultaneously.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
