Article
Environmental Sciences
Amin Mojiri, John L. Zhou, Harsha Ratnaweera, Shahabaldin Rezania, Mansoureh Nazari
Summary: This study focuses on the occurrence of PPCPs in natural water bodies globally and examines the impact of various factors on the fluxes of pollutants into receiving waterways. High concentrations of PPCPs in water bodies have harmful effects on aquatic organisms, while algae-based systems are found to be effective in removing certain PPCPs.
Article
Chemistry, Physical
Sixing Dai, Yue Wang, Lei Xiao, Gazi Hao, Yubing Hu, Guangpu Zhang, Wei Jiang
Summary: Insufficient charge transfer between interfaces is a limiting factor in the photocatalytic degradation of pharmaceuticals and personal care products (PPCPs). This study presents a 2D/2D/2D CuO-MXene-OCN S-scheme heterojunction, which significantly improves the photocatalytic performance. The interfacial engineering with 2D/2D/2D structure provides new insights for the construction of layered S-scheme heterojunctions for PPCPs photocatalytic degradation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Environmental Sciences
Ayesha Javaid, Muhammad Imran, Shoomaila Latif, Nazim Hussain, Muhammad Bilal
Summary: Due to rapid urbanization and globalization, the excessive release of pharmaceuticals and personal care products in water bodies has become a significant environmental issue. Conventional wastewater remediation methods are not effective in removing these emerging contaminants, highlighting the need for advanced technologies. Photocatalysis, with magnetic nanocomposites as photocatalysts, has shown promising results in efficiently removing pharmaceuticals from water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Yifei Luo, Guohe Huang, Yongping Li, Yao Yao, Jing Huang, Peng Zhang, Shaojie Ren, Jian Shen, Zixin Zhang
Summary: The increasing demand for pharmaceuticals and personal care products (PPCPs) has led to the uncontrolled release of a large amount of PPCPs into the environment, posing a great challenge to existing wastewater treatment technologies. Therefore, there is an urgent need to develop novel materials for efficient treatment of PPCPs. MOF-derived carbons (MDCs) have various advantages that make them excellent candidates for removing PPCPs. This review discusses the effects of different substances on the properties and functions of MDCs, and summarizes representative applications of MDCs and composites in the field of adsorption and catalysis for PPCPs removal. Future challenges of MDCs and composites are also foreseen.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Bo Ram Kang, Seo Young Kim, Minwoo Kang, Tae Kwon Lee
Summary: The study evaluated the effectiveness of using fungal enzymes to remove pharmaceuticals and personal care products from aquatic environments, demonstrating that Bjerkandera spp. TBB-03 enzymes exhibit remarkable stability and can effectively remove acetaminophen and bisphenol A under various conditions. Additionally, the presence of acetaminophen improved the removal of sulfamethoxazole by TBB-03 laccase.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Yingxin Zhao, Chenggong Zhang, Zhifan Yang, Ying Yang, Ning Huang, Jestyl E. Arku, Guozhu Mao, Yue Wang
Summary: This study analyzed 9066 publications on the removal of pharmaceuticals and personal care products, revealing research distribution, pollutant characteristics, and treatment technologies. China had the highest number of articles, with adsorption technology being most extensively used and nanomaterial and biomaterial adsorbents showing promise.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Review
Environmental Sciences
R. Ricky, S. Shanthakumar
Summary: PPCPs are of concern due to their large usage and persistence, traditional technologies are unable to completely eliminate these pollutants, phycoremediation has advantages in degrading pollutants but industries face difficulties in adopting it as a treatment process. Recent research focuses on integrating phycoremediation with other technologies to effectively treat PPCPs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Wan Ting Tee, Nicholas Yung Li Loh, Billie Yan Zhang Hiew, Pau Loke Show, Svenja Hanson, Suyin Gan, Lai Yee Lee
Summary: Three-dimensional heteroatom-doped graphene is an effective approach for treating pharmaceutical wastewater due to its excellent adsorption and physicochemical properties. A boron-doped graphene oxide composite was successfully synthesized and showed promising adsorption performance for removing amitriptyline from contaminated water.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Chemistry, Physical
Jiao Jiao, Yihua Li, Qi Song, Liujin Wang, Tianlie Luo, Changfei Gao, Lifen Liu, Shengtao Yang
Summary: This review systematically summarizes the features of various types of free radicals in advanced oxidation processes (AOPs) and their removal efficiency for pharmaceutical and personal care products (PPCPs). It also summarizes the operation conditions and reaction mechanisms of different free radicals, providing a quick understanding of AOPs for future researchers.
Review
Environmental Sciences
Xiaojin Hu, Huijun Xie, Linlan Zhuang, Jian Zhang, Zhen Hu, Shuang Liang, Kuishuang Feng
Summary: Constructed wetlands show good removal performance for PPCPs through the combined processes of substrates, plants, and microorganisms. This review summarizes the direct and indirect roles of wetland plants in PPCP removal, with indirect effects appearing more significant. Wetland plants can enhance PPCP removal through improved rhizosphere microbial activities and the formation of supramolecular ensembles with humic acids, improving efficiency by up to four times.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Xueli Ren, Qi Wang, Hongbin Chen, Xiaohu Dai, Qunbiao He
Summary: Pharmaceuticals and personal care products (PPCPs) are emerging pollutants that have attracted the attention of researchers. The study optimized the design of a bioreactor to improve the removal efficiency of conventional pollutants and PPCPs from blackwater. The findings showed that the PPCP removal mechanisms in the AAO-MBR system were mainly biodegradation, sludge adsorption, and effluent residue.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Sixing Dai, Lei Xiao, Qinliu Li, Gazi Hao, Yubing Hu, Wei Jiang
Summary: Graphitic carbon nitride (g-C3N4) is a promising photocatalytic material for degrading pollutants. This study focuses on modifying the surface of g-C3N4 to enhance its photocatalytic activity. By treating g-C3N4 with NaOH, surface hydroxylated nanofibers were obtained, which were then used to create 0D/1D Co3O4-NTCN nanocomposites. The modified g-C3N4 showed improved photodegradation performance, and the unique structure of the nanocomposites enhanced light exposure and charge transfer. The results demonstrated high photodegradation ratios for various pollutants within a short time.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Environmental Sciences
Thilakshani Atugoda, Meththika Vithanage, Hasintha Wijesekara, Nanthi Bolan, Ajit K. Sarmah, Michael S. Bank, Siming You, Yong Sik Ok
Summary: Recent studies have shown that hydrophilic compounds such as pharmaceuticals and personal care products (PPCPs) can be adsorbed onto plastic surfaces and coexist with microplastics in the environment.
ENVIRONMENT INTERNATIONAL
(2021)
Review
Biotechnology & Applied Microbiology
Radhakrishnan Yedhu Krishnan, Sivasubramanian Manikandan, Ramasamy Subbaiya, Muniyandi Biruntha, Muthusamy Govarthanan, Natchimuthu Karmegam
Summary: This review summarizes recent studies on the removal of PPCPs by advanced oxidation processes and discusses the degradation of different classes of PPCPs as well as key factors affecting their removal.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Xuan Shi, Bo Ren, Xin Jin, Xiaochang C. Wang, Pengkang Jin
Summary: The discharge of personal care products (PPCPs) to sewer systems has increased due to urban expansion, while the transformation of PPCPs in sewer systems and their potential threats to receiving water environments have been rarely explored. This study investigated the effect of PPCPs transformation in a pilot sewer system by continuously adding six PPCPs over a 90-day experimental period. The results showed that under PPCPs stress conditions, the biological metabolism of carbon, nitrogen, and phosphorous pollutants was restricted. Genomic detection confirmed that the diversity of microflora in sewer sediment significantly decreased with PPCPs transformation, and the relative abundance of dominant phylum species increased. In addition, the study found that two types of antibiotics were the main inducements for metabolic dysfunction in sewer systems, leading to the increase of functional genes associated with human diseases and the formation of more harmful metabolites. This investigation provides insights into the metabolic hazards of PPCPs bioconversions in sewers and highlights the importance of addressing PPCPs emission to sewers.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Sharon Hilarydoss, Krithika Delhiraja, Kalvala Srinivas Reddy, Ligy Philip, Drupad Chand, Belmin Benny
Summary: The inclined felt sheet solar distiller shows excellent performance in utilizing low-cost, low-impact desalination techniques, with stable production and effective pollutant removal. Its adoption in coastal regions of India can significantly reduce emissions of carbon dioxide, sulfur dioxide, and nitrogen oxides.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jerin Jose, Ligy Philip
Summary: The study evaluated the effectiveness of pulsed power plasma for degrading two toxic VOCs, toluene and MIBK, in aqueous solution, achieving 100% removal of both compounds after 12 and 16 minutes of treatment. Factors influencing degradation included initial compound concentration, solution pH, and scavengers. The degradation pathways involving reactive oxygen and nitrogen species were proposed.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Article
Environmental Sciences
Jerin Jose, Ligy Philip
Summary: The continuous flow plasma reactor effectively degrades toxic compounds in pharmaceutical wastewater without pre-treatment, with high removal efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Manthiram Karthik Ravichandran, Ligy Philip
Summary: Constructed wetlands are shown to be a cost-effective and sustainable treatment method for various wastewaters, with plants playing a key role in attenuating pollutants. The study found that Canna indica exhibited higher specific uptake potential of target pollutants compared to Chrysopogon zizanioides, with a low accumulation of pollutants in the plants due to a large fraction getting metabolized. Plant characteristics such as lipid content, root and shoot biomass, and transpiration rate were identified to influence pollutant uptake, translocation, and accumulation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Narasamma Nippatlapalli, Kamaraj Ramakrishnan, Ligy Philip
Summary: This study focuses on the degradation of pharmaceutically active compounds in water bodies using pulsed corona plasma technology. Three different plasma reactors were designed and experimented, showing that continuous flow reactors achieved higher degradation efficiency, shorter treatment time, and lower energy consumption.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Jayakumar Renganathan, Insamam S. Ul Huq, Kamaraj Ramakrishnan, Manthiram Karthik Ravichandran, Ligy Philip
Summary: The study identified the presence of various PhACs in the surface waters of the River Cauvery, with some being strongly influenced by seasonality and positively correlated with PCPs, HMs, and nutrients. Moreover, higher concentrations of PhACs were recorded in the upstream and wastewater discharge points.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Krithika Delhiraja, H. Sharon, K. S. Reddy, Ligy Philip
Summary: This study experimented with treating urine and feces separated from toilets using indigenously developed solar thermal systems, including tilted partitioned basin solar distiller (TPBSD) and stepped solar dryer (SSD). The results showed that these systems have good treatment efficiency, can reduce CO2 emissions, and have both environmental and economic benefits.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Engineering, Environmental
Vaishali Choudhary, Danil W. Boukhvalov, Ligy Philip
Summary: In this study, the sorptive and electro-sorptive capture of phosphate using MOFs (NH2-MIL-101(Al), NH2-MIL-101(Fe), and UiO-66-NH2) was investigated. The MOFs exhibited high adsorption capacity and fast kinetics for phosphate, but poor desorption efficiency indicated irreversible sorption. The presence of an amino linker allowed for the removal of impurities without affecting phosphate sorption, and DFT calculations showed strong metal-phosphate interactions responsible for effective adsorption.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Review
Environmental Sciences
Kowsalya Vellingiri, Vaishali Choudhary, Danil W. Boukhvalov, Ligy Philip
Summary: This review provides an overview of recent advances in catalytic treatment technologies for the removal of parabens from water. Photocatalysis, Fenton's reaction, persulfate, and ozonation/catalytic ozonation systems were found to be superior in eliminating parabens. The review also discusses performance evaluation, economic feasibility, and fundamental mechanisms associated with paraben degradation.
Review
Environmental Sciences
Kowsalya Vellingiri, Vaishali Choudhary, Danil W. Boukhvalov, Ligy Philip
Summary: The increased consumption of parabens and associated health hazards has led to the development of water treatment technologies capable of removing parabens to desired levels. Catalytic degradation offers advantages such as faster reaction kinetics, increased reactive species formation, and no sludge disposal problem. This review highlights recent advances in catalytic systems and their superiority in eliminating parabens, as well as the evaluation of their performance and economic feasibility using mathematical models.
Review
Engineering, Environmental
Kowsalya Vellingiri, Vaishali Choudhary, Sumit Kumar, Ligy Philip
Summary: This review discusses recent developments in the sorptive and advanced oxidation removal of BTEX from water, with a focus on the environmental sustainability assessed through life cycle assessment (LCA). The scoring results indicate that hydrodynamic cavitation and acoustic cavitation methods have higher sustainability in treating BTEX contamination.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Vaishali Choudhary, Kowsalya Vellingiri, Mohammed Iqbal Thayyil, Ligy Philip
Summary: This article discusses the potential and advantages of electrocatalysis technology in degrading antibiotics, exploring past, present, and future trends, and mentioning key factors such as catalyst type, reaction mechanism, and environmental impact.
ENVIRONMENTAL SCIENCE-NANO
(2021)
Article
Engineering, Environmental
R. Manthiram Karthik, Ligy Philip
Summary: This study evaluated the potential of eight low-cost materials as adsorbents for the removal of pharmaceutically active compounds and nutrients. The results showed that wood charcoal, LECA, natural zeolites, and waste AAC blocks have a promising potential for the elimination of micro-pollutants due to their superior properties. The mechanisms responsible for the sorption process were identified and the results will aid in selecting appropriate substrate materials for low-cost natural treatment systems.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Narasamma Nippatla, Ligy Philip
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
