Ozonation Process for the Treatment of Wastewater Contaminants Pranjal P. Das, Simons Dhara, Niladri Shekhar Samanta, Mihir K. Purkait ACS Symposium Series, 2024 The degradation and mineralization of persistent pollutants have commonly been achieved by the utilization of an improved oxidation technique called ozonation. For over a century, ozone has been utilized in the treatment of wastewater, serving several purposes such as disinfection and the oxidation of both inorganic and organic pollutants. Given the limitations of conventional treatment methods in effectively eliminating refractory compounds from water and wastewater, ozone has emerged as a promising alternative. This is primarily due to its unique characteristics, such as molecular ozone oxidation and the ability to generate unselective hydroxyl radicals. Consequently, ozone exhibits a broader spectrum of activity in the removal of micropollutants and the disinfection of water. This chapter provides a detailed discussion and summary of comprehensive studies conducted on the efficiency of the ozonation process and its environmental applications for the removal of recalcitrant pollutants in various types of wastewater. These include wastewater from the dairy industry, tannery industry, hospitals, surfactants, piggery and municipal sources. Also, a comparative analysis of ozonation, reverse osmosis and activated carbon processes has been covered. This chapter comprehensively illustrates the progress and recent accomplishments in the ozonation process for the treatment of wastewater contaminants. These findings offer valuable insights into the potential environmental applications of ozonation in supporting the degradation of various types of wastewater.
Potential of Biochar and Microalgae for Bioremediation of Emerging Contaminants Simons Dhara, Niladri Shekhar Samanta, Pranjal P. Das, Mihir Kumar Purkait ACS Symposium Series, 2024 Emerging contaminants (ECs) encompass a range of compounds that pose substantial threats to both aquatic ecosystems and human health, given their capacity to inflict harm on the environment and human well-being. Consequently, a pressing need exists for the implementation of efficient remediation methodologies and strategies aimed at mitigating the deleterious effects of these contaminants on the environment. In this investigation, we examine the progress in utilizing biochar and microalgae for the elimination of ECs from wastewater. The removal of contaminants within microalgae-based systems encompasses various processes such as hydrolysis, volatilization, photolysis, biodegradation, biosorption, and bioaccumulation. Whereas biochar based method are mainly focused on adsorption methods. The presence of ECs can impede the growth of microalgae and diminish their capacity for removal, and pristine biochar has certain limitations such as narrow adsorption region and limited adsorption capacity. Modification is required to enhance its applications in water treatment for ECs. In this chapter, different removal mechanism for ECs removal, and recent modifications of biochar and microalgal technologies to improve functionality for ECs bioremediation has been discussed. The study concludes by highlighting principal directions and developments in the field of research as well as offering suggestions and insights for further research.
Rejection of Harmful Contaminants from Wastewater by Hybrid Process Niladri Shekhar Samanta, Pranjal P. Das, Simons Dhara, Mihir K. Purkait ACS Symposium Series, 2024 In recent times, numerous physicochemical and biological treatment techniques have been examined for the purpose of removing emerging contaminants (ECs) from wastewater. This chapter explores these hybrid systems that combine several biological, chemical, and physical processes for the efficient and environmentally responsible removal of ECs from contaminated water. In most hybrid systems, biological therapies came first, followed by chemical or physical treatments. Pesticides, beta-blockers, endocrine disrupting chemicals (EDCs), and pharmaceuticals were all successfully eliminated using the hybrid system of membrane filtration (RO/NF) and membrane bioreactor (MBR). The most efficient and effective solutions for removing trace organic contaminants are hybrid techniques that combine the activated sludge process with several physical methods including gamma radiations, ultrafiltration (UF), and reverse osmosis (RO). Some ECs and many pharmaceuticals were destroyed by the hybrid methods of MBR combined with ultrasound, activated carbon, oxidation facilitated by UV, and ozonation followed by ultrasounds. Future research directions using hybrid nanocomposites and environmentally friendly, sustainable methodology have been proposed for the removal of ECs.
Microbial fuel cell for wastewater treatment and energy recovery Pranjal P. Das, Simons Dhara, Niladri Shekhar Samanta, Mihir K. Purkait Development in Waste Water Treatment Research and Processes Role of Environmental Microbiology in Industrial Wastewater Research, 2024
Nanotechnology in microbial electrochemical cells Niladri Shekhar Samanta, Pranjal P. Das, Simons Dhara, Mihir K. Purkait Development in Waste Water Treatment Research and Processes Role of Environmental Microbiology in Industrial Wastewater Research, 2024
Biological nitrogen removal and recovery from wastewater Simons Dhara, Niladri Shekhar Samanta, Pranjal P. Das, Mihir K. Purkait Development in Waste Water Treatment Research and Processes Role of Environmental Microbiology in Industrial Wastewater Research, 2024
Biofuel production from algal biomass Pranjal P. Das, Niladri S. Samanta, Simons Dhara, Mihir Kumar Purkait Green Approach to Alternative Fuel for A Sustainable Future, 2023
Phosphorus recovery from municipal wastewater treatment plants Simons Dhara, Pranjal P. Das, R. Uppaluri, Mihir Kumar Purkait Development in Wastewater Treatment Research and Processes Advances in Industrial Wastewater Treatment Technologies Removal of Contaminants and Recovery of Resources, 2023
RECENT SCHOLAR PUBLICATIONS
Emerging pre-treatment technologies for lignocellulosic biomass valorization: advances, challenges, and future perspectives TN Baite, S Dhara, MK Purkait Bioproducts From Lignocellulosic Biomass, 139-169 , 2026 2026
Microbial conversion of lignocellulosic biomass into valued bioproducts and their chemistry S Dhara, TN Baite, MK Purkait Bioproducts From Lignocellulosic Biomass, 197-221 , 2026 2026
Lignin as an Antioxidant TN Baite, S Dhara Handbook of Lignin, 1-26 , 2025 2025
Alkali Lignin: Extraction S Dhara, TN Baite Handbook of Lignin, 1-32 , 2025 2025 Citations: 2
Biowaste-alkaline lignin and GO integrated polysulfone ultrafiltration membrane fabrication for Pb2+ and Eosin Y dye removal S Dhara, AD Sontakke, NS Samanta, RVS Uppaluri, MK Purkait Separation and Purification Technology 341, 126894 , 2024 2024 Citations: 34
Advancements on ozonation process for wastewater treatment: A comprehensive review PP Das, S Dhara, NS Samanta, MK Purkait Chemical Engineering and Processing-Process Intensification 202, 109852 , 2024 2024 Citations: 84
Effect of operational conditions on anammox bacterial community S Dhara, PP Das, TN Baite, MK Purkait Anammox Process, 1-24 , 2024 2024
Rejection of Harmful Contaminants from Wastewater by Hybrid Process NS Samanta, PP Das, S Dhara, MK Purkait Bioremediation of Emerging Contaminants in Water. Volume 1, 149-161 , 2024 2024
Potential of Biochar and Microalgae for Bioremediation of Emerging Contaminants S Dhara, NS Samanta, PP Das, MK Purkait Bioremediation of Emerging Contaminants in Water. Volume 1, 71-92 , 2024 2024 Citations: 2
Ozonation Process for the Treatment of Wastewater Contaminants PP Das, S Dhara, NS Samanta, MK Purkait Bioremediation of Emerging Contaminants in Water. Volume 1, 93-109 , 2024 2024 Citations: 1
Biological nitrogen removal and recovery from wastewater S Dhara, NS Samanta, PP Das, MK Purkait Development in Waste Water Treatment Research and Processes, 159-179 , 2024 2024 Citations: 1
Nanotechnology in microbial electrochemical cells NS Samanta, PP Das, S Dhara, MK Purkait Development in Waste Water Treatment Research and Processes, 145-158 , 2024 2024
Microbial fuel cell for wastewater treatment and energy recovery PP Das, S Dhara, NS Samanta, MK Purkait Development in Waste Water Treatment Research and Processes, 125-143 , 2024 2024
Ozone-based oxidation processes for the removal of pharmaceutical products from wastewater PP Das, S Dhara, MK Purkait Development in wastewater treatment research and processes, 287-308 , 2024 2024 Citations: 13
Fabrication of LD-slag derived zeolite Y coated polysulfone (PSf) membrane for decontamination of groundwater NS Samanta, P Mondal, S Dhara, U Bora, MK Purkait Chemical Engineering Journal 478, 147330 , 2023 2023 Citations: 13
Enhancing Bioethanol Yield from Ravenna Grass ( Saccharum ravennae ): Optimization of Pretreatment Strategies and Surfactant-Assisted Enzymatic Hydrolysis for … S Dhara, RVS Uppaluri, MK Purkait ACS Agricultural Science & Technology 3 (12), 1154-1168 , 2023 2023 Citations: 13
The Anaerobic Ammonium Oxidation Process: Inhibition, Challenges and Opportunities PP DAS, S DHARA, MK PURKAIT Ammonia Oxidizing Bacteria: Applications in Industrial Wastewater Treatment, 56 , 2023 2023 Citations: 4
Hybrid electrocoagulation and ozonation techniques for industrial wastewater treatment PP Das, S Dhara, MK Purkait Sustainable industrial wastewater treatment and pollution control, 107-128 , 2023 2023 Citations: 15
Membrane and disinfection technologies for industrial wastewater treatment Deepti, Anweshan, S Dhara, MK Purkait Industrial wastewater reuse: applications, prospects and challenges, 89-112 , 2023 2023 Citations: 5
MOST CITED SCHOLAR PUBLICATIONS
Advancements on ozonation process for wastewater treatment: A comprehensive review PP Das, S Dhara, NS Samanta, MK Purkait Chemical Engineering and Processing-Process Intensification 202, 109852 , 2024 2024 Citations: 84
High-purity alkaline lignin extraction from Saccharum ravannae and optimization of lignin recovery through response surface methodology S Dhara, NS Samanta, R Uppaluri, MK Purkait International Journal of Biological Macromolecules 234, 123594 , 2023 2023 Citations: 75
An overview of precious metal recovery from steel industry slag: recovery strategy and utilization N Shekhar Samanta, PP Das, S Dhara, MK Purkait Industrial & Engineering Chemistry Research 62 (23), 9006-9031 , 2023 2023 Citations: 63
Biowaste-alkaline lignin and GO integrated polysulfone ultrafiltration membrane fabrication for Pb2+ and Eosin Y dye removal S Dhara, AD Sontakke, NS Samanta, RVS Uppaluri, MK Purkait Separation and Purification Technology 341, 126894 , 2024 2024 Citations: 34
Phosphorus recovery from municipal wastewater treatment plants S Dhara, PP Das, R Uppaluri, MK Purkait Development in wastewater treatment research and processes, 49-72 , 2023 2023 Citations: 20
Hybrid electrocoagulation and ozonation techniques for industrial wastewater treatment PP Das, S Dhara, MK Purkait Sustainable industrial wastewater treatment and pollution control, 107-128 , 2023 2023 Citations: 15
Biological approach for energy self-sufficiency of municipal wastewater treatment plants S Dhara, PP Das, R Uppaluri, MK Purkait Resource Recovery in Municipal Waste Waters, 235 , 2023 2023 Citations: 15
Ozone-based oxidation processes for the removal of pharmaceutical products from wastewater PP Das, S Dhara, MK Purkait Development in wastewater treatment research and processes, 287-308 , 2024 2024 Citations: 13
Fabrication of LD-slag derived zeolite Y coated polysulfone (PSf) membrane for decontamination of groundwater NS Samanta, P Mondal, S Dhara, U Bora, MK Purkait Chemical Engineering Journal 478, 147330 , 2023 2023 Citations: 13
Enhancing Bioethanol Yield from Ravenna Grass ( Saccharum ravennae ): Optimization of Pretreatment Strategies and Surfactant-Assisted Enzymatic Hydrolysis for … S Dhara, RVS Uppaluri, MK Purkait ACS Agricultural Science & Technology 3 (12), 1154-1168 , 2023 2023 Citations: 13
Biofuel production from algal biomass PP Das, NS Samanta, S Dhara, MK Purkait Green approach to alternative fuel for a sustainable future, 167-179 , 2023 2023 Citations: 11
Nanosensors in food science and technology PP Das, S Dhara, MK Purkait Advances in smart nanomaterials and their applications, 247-272 , 2023 2023 Citations: 7
Membrane and disinfection technologies for industrial wastewater treatment Deepti, Anweshan, S Dhara, MK Purkait Industrial wastewater reuse: applications, prospects and challenges, 89-112 , 2023 2023 Citations: 5
The Anaerobic Ammonium Oxidation Process: Inhibition, Challenges and Opportunities PP DAS, S DHARA, MK PURKAIT Ammonia Oxidizing Bacteria: Applications in Industrial Wastewater Treatment, 56 , 2023 2023 Citations: 4
Application of Biochar in the Removal of Organic and Inorganic Contaminants from Wastewater: Mechanism, Operating Conditions, and Modifications PP Das, M Sharma, S Dhara, MK Purkait Designer Biochar Assisted Bioremediation of Industrial Effluents, 173-198 , 2022 2022 Citations: 3
Alkali Lignin: Extraction S Dhara, TN Baite Handbook of Lignin, 1-32 , 2025 2025 Citations: 2
Potential of Biochar and Microalgae for Bioremediation of Emerging Contaminants S Dhara, NS Samanta, PP Das, MK Purkait Bioremediation of Emerging Contaminants in Water. Volume 1, 71-92 , 2024 2024 Citations: 2
Ozonation Process for the Treatment of Wastewater Contaminants PP Das, S Dhara, NS Samanta, MK Purkait Bioremediation of Emerging Contaminants in Water. Volume 1, 93-109 , 2024 2024 Citations: 1
Biological nitrogen removal and recovery from wastewater S Dhara, NS Samanta, PP Das, MK Purkait Development in Waste Water Treatment Research and Processes, 159-179 , 2024 2024 Citations: 1