Browsing by Author "Yadav, Sangita"

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Advanced membrane technology for the removal of pesticides from water and wastewater
(Elsevier, 2022-05-21T00:00:00) Yadav, Sangita; Chauhan, Amit Kumar; Kumar, Sandeep; Kataria, Navish
Agricultural runoff is one of the main factors that introduces pesticide residue into water. Common pesticides such as DEET(N,N-diethyl-meta-toluamide), DDT(dichloro diphenyl trichloroethane), metolachlor, malathion, etc., have continuously contaminated water systems. These pesticides are toxic and can cause detrimental effects on living organisms, even at trace amounts. Most pesticides are grouped into chemical families and persist the environment for long periods. Therefore, specific water treatment is required to clean the waterbodies contaminated with pesticides. Several conventional treatment methods have been introduced in the past to decontaminate the waterbodies. However, there are many advantages and disadvantages associated with these processes. Nowadays, membrane technology is one of the best and preferred method available to treat contaminated water because of its high efficiency, cost effectiveness, easy applicability, stability, and low footprint. Membrane filtration includes reverse osmosis, nanofiltration, ultrafiltration, nanofiber filtration, and biomembrane filtration processes for pollution separation. Membrane materials and filtration processes can be modified depending on the chemical structure and properties of the pesticides. Recent advances in nanotechnology offer energy-efficient, low cost, and eco-friendly approaches in water treatment technologies. Membrane materials can be modified to obtain better results and increase its effectiveness for treatment process. Recently, researchers have started working to introduce new nanomaterials including carbon nanotubes, nanopolymers, metal-organic nanomembrane, graphene, quantum and nanoshells development of membrane filters for water purification. Recently, membrane materials progress has allowed filtration to become more effective over other conventional treatment methods and popularized globally. � 2022 Elsevier Inc. All rights reserved.
Pharmaceutical Contamination in Water and Wastewater: Remediation Technology and Future Challenges
(CRC Press, 2023-09-12T00:00:00) Kataria, Navish; Yadav, Sangita; Rose, Pawan Kumar; Garg, Vinod Kumar
Water is an essential natural resource available on the earth for the use of human beings. Numerous new toxins build up in aquatic habitats due to industrial, agricultural, hospital, and residential discharges. Nowadays, several nations consider pharmaceutical pollution of the aquatic environment a severe environmental issue. Therefore, research focusing on the chemical identification and measurement of these substances, assessing potential biological impacts, and developing and applying state-of-the-art treatment techniques for their removal and/or mineralisation has gained tremendous attention. Conventional treatment techniques generally result in inadequate removal, toxic by-products, and sludge production and are usually ineffective in eliminating new contaminants, such as pharmaceuticals. Additionally, the concentration of these contaminants has not been routinely evaluated since there are no precise discharge regulations. Advanced water treatment techniques are needed to treat pharmaceutical waste effectively. The present chapter discusses the potential methods for remediating pharmaceuticals from water bodies and wastewater streams, as well as advancements in remediation strategies, green chemistry, circular economy, and associated future challenges. � 2024 selection and editorial matter, Vinod Kumar Garg, Ashok Pandey, Navish Kataria and Caterina Faggio; individual chapters, the contributors.
Recent Advancement in Nanotechnology for the Treatment of Pharmaceutical Wastewater: Sources, Toxicity, and Remediation Technology
(Springer Science and Business Media Deutschland GmbH, 2023-03-11T00:00:00) Kumar, Sandeep; Yadav, Sangita; Kataria, Navish; Chauhan, Amit Kumar; Joshi, Seema; Gupta, Renuka; Kumar, Parmod; Chong, Jun Wei Roy; Khoo, Kuan Shiong; Show, Pau Loke
The textile, paper and pulp, distillery, and pharmaceutical industries are only a few of the many sectors that contribute significantly to the contamination of water bodies and their unsuitability for human use. Pharmaceuticals, which are credited with saving millions of lives in recent decades, have emerged as a new category of environmental hazard. Their prolonged presence in the environment has a number of negative effects, including gene toxicity, hormone interference, antibiotic resistance, the imposition of sex organs, and many others. To ensure that everyone in the world can access to uncontaminated and safe drinking water, it is important to treat pharmaceutical laden wastewater before discharge in fresh water body. Nanotechnology is getting significant attention due to enormous properties such as the high surface area to volume ratio, new optical properties, and desired shape. Nanomaterials might be a strong option for purifying water of a variety of environmental pollutants. This review also touches on several environmental aspects of pharmaceuticals, including (i) the current status of pharmaceuticals production and their use pattern, (ii) sources, occurrence, and transport behaviour of pharmaceuticals, (iii) analysis techniques and potential toxicity of pharmaceuticals and (iv) various conventional and advanced nanotechnology for water remediation. The present review is predominately designed to highlight the progress and major update in advantaged nanotechnology for remediation of pharmaceutical contaminated wastewater. The literature study (2015�2022) critically illustrated the recent pharmaceutical contaminations concerns and remediation efforts emphasizing nanotechnology like nanoadsorption, AOPs, nano-catalyst, electrochemical degradation and nanomembrane/nanofiltration technology. � 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG.