Dr Priyanka Katiyar is currently working as an Assistant professor in the Department of Chemical Engineering at Shiv Nadar (Institution of Eminence Deemed to be University).
- Strong Expertise in the synthesis of novel catalysts, Photocatalyst (nano-sized), biosorbent and agro-industrial waste management such as Tannery, Essential oil industry etc to industrial wastewater i.e. Textile and pharmaceutical.
- Expert in handling the experimental setup related to Supercritical fluid extraction of natural products i.e. Turmeric root, Sunflower seed and carrot seed etc. Also expert in advanced oxidation methods to treat wastewater.
- Expert in using optimization and modelling software such as COMSOL Multiphysics, Quantum XL, Design expert, ASPEN Plus etc.
- The focus of her research group lies in the investigation of ecological technologies to create energy efficient and clean environment.
- The current focus is on the production of Bio-oil from the agro-industrial solid waste and food waste obtained from the food mess, restaurants etc using thermochemical conversion methods and upgradation of bio-oil to make it more refined for direct use.
- Her research group works on Advanced Separation technologies such as Membrane separation, Supercritical fluid extraction and Supercritical fluid drying. Optimization and modelling of separation processes.
- Published 8 papers in reputed International Journals with total number of citations 256.
- Google Scholar Profile: https://scholar.google.com/citations?user=lLEBAwQAAAAJ&hl=en&authuser=1
- Energy and Environment Sustainability,
- Membrane Separation,
- Supercritical Fluid extraction,
- Catalysis and Reaction Engineering
- Modelling and simulation,
- Industrial waste treatment and management
Sponsored Research project
Title of the Project: Pyrolysis of oil extracted spice waste and up-gradation of bio-oil to bio- diesel using novel catalysts.
Funding Agency: Council of Science & Technology, U.P.
Project Investigators: Dr. Priyanka Katiyar & Dr. V.M. Rajesh
In recent years, due to increase in the demand of natural extracts, oil extracted spice waste is increasing at an alarming rate annually. Currently, the amount of spent celery seed sent for disposal as waste is around 1200 tons annually in India. Similarly, the tanning industry generates 4 million tons of solid waste per year globally and acclaimed as a potentially pollution- intensive industry. Three are various techniques available to treat tannery wastewater under primary and secondary treatment process however sludge/waste generated from tanning industry does not have any suitable application and majorly sent for land disposal or incineration. These wastes have high oxygen demand for decomposition and leach toxic chemicals and elements to the soil as well as drinking water such as chromium in case of tannery sludge. Thus, handling and disposal of spent spice waste as well as tannery sludge are serious economic and environmental concerns and strategies need to be investigated for their effective utilization. To deal with these concerns, valorization of spent spice waste is proposed as a promising alternative to reclaim energy and produce biodiesel while generating stabilized solids for carbon storage and soil in present proposal. Since, tannery sludge contains many metals and minerals such as Cr, Zn, Si, Al which act as promoter to enhance the thermochemical conversion, it will be utilized as a catalyst in proposed work. The aim of present work is to utilize spent solid waste of spice oil industry as a feedstock for bio-oil production which is well known alternative of fossil fuels. This way two important issues of current times is being addressed together: handling of solid waste and production bio-fuel. To make the production bio-oil efficient and reduce the char production, tannery sludge based catalyst will be used which will provide a value-added utilization of tannery waste. It is proven that biomass can’t be completely converted into bio-oil, some amount of char will definitely be generated and bio fuel produced by pyrolysis is a low quality fuel, not suitable for direct use. Now that char will also create disposal problem, thus in proposed work, char will again be used as catalyst for upgradation of bio oil to bio-diesel after chemical and thermal activation. Therefore, proposed study aims at the complete utilization of spent spice waste and tannery sludge for value-added production of bio-diesel and bio-chemicals.
Active Research Project
1. Utilization of mixed food waste and post-extraction solid waste for Bio-energy and wastewater treatment
This project is divided into two parts (i) Utilization of cooked food waste to produce bioenergy and (ii) Value added utilization of post extraction solid waste, spent carrot seed in biofuel production and in wastewater. Cooked food waste collected from dining halls is subjected to Pyrolysis with and without the presence of catalyst which generates bio-oil rich in long and short chain hydrocarbons. In another part of the project, spent carrot seed, collected from the essential oil industry after the extraction of oil, will be investigated for the value-added utilization as adsorbent, catalyst and feedstock for bio-oil production.
2. Development of a novel biochar based adsorptive membranes from industrial agro-wastes to treat pharmaceutical pollutants.
The primary objective of the research is to develop a biochar-based mixed polymer matrix membrane. The biochar will be obtained from gasification experiments on an industrial agro-waste. The membrane will then be analysed to determine the physio-chemical properties such as the molecular weight cut-off, porosity, permeability, average pore size, pore size distribution, contact angle, zeta potential, and the mechanical strength. Then, its utility to adsorb antibiotics present in wastewater will be evaluated by techniques such as vacuum filtration and UV-Spectroscopy. Lastly, the operational parameters such as temperature, time, and pH, will be optimized to get the maximum adsorption capacity.
3. Optimization of Supercritical fluid extraction process for the selective extraction of Turmeric root and Carrot seed: ANN and DoE Modelling.
Turmeric root oil and Carrot seed oil possess medicinal value such as anti-inflammatory and the antifungal properties due to availability of several compounds in their oil i.e. Turmerone and Curcumin in turmeric oil and Carotol and Daucol in Carrot seed oil. In this project, optimization of operating parameters is carried out for selective extraction of Turmerone, Curcumin, Carotol and Daucol using supercritical fluid extraction method. Since a large number of parameters affect the quality and quantity of extracted compounds, manual optimization is a tedious and time-consuming task. Therefore, DoE and ANN modelling approach will be adopted to maximize the extraction of selective compounds by predicting suitable operating conditions where extraction of other compounds present could be minimized. Variable operating parameters selected for the optimization are Pressure, Temperature, Solvent flow rate, Particle size and Addition of co-solvent. DoE modelling will be carried out using the licensed version of QUANTUM XL Software while MATLAB would be utilized for ANN modelling.
4. Supercritical Fluid drying of high-valued food stuff: An emerging food preservation technique.
India is a major producer of dried & Preserved Vegetable i.e. Onions, Cucumber, Gherkins, Mushrooms, Green Pepper, Asparagus, Garlic Powder, Garlic Flakes etc. Due to wrong practices of preservation and farming, 20-25% of total yield is being wasted. This waste amount could be preserved for future use and India is also a prominent exporter of dried and preserved vegetables to the world.In conventional techniques such as air and solar drying, high temperature (typically 65-85 °C) can cause damage to the microstructure in the form of hardening and shrinkage. It also affects the color, texture, taste, aroma and nutritional value of the product negatively. Low thermal conductivity of foods limits heat transfer to the inside of foods resulting in a lengthened drying process. The Supercritical CO2 drying process works in a similar way to air drying, except that the drying medium consists of CO2 under pressure. Considering the demand of dried/preserved foodstuffs and disadvantages of other conventional techniques, this work is intended to investigate an alternative drying technique, which can effectively provide a good food quality. A comparison study to be performed to compare the Supercritical CO2 drying of high-valued foodstuff with conventional air-drying method based on the qualitative analysis and economic feasibility.The process modelling of Supercritical CO2 drying process will be done using ASPEN Plus software. In addition, a mathematical model for Supercritical CO2 drying process is to be developed considering the mechanism of water removal.
B Tech major and OUR Project
- Adsorption of organic pollutants present in Basic blue dye-bearing wastewater using post-extraction carrot seed
- Development of a novel biochar based adsorptive membranes from spent turmeric root waste.
- Design and fabrication of the pyrolysis tank.
- Economic Evaluation for Industrial Scale Supercritical Fluid Extraction of Turmeric Root.
- Physico-chemical characterization of spent carrot seeds.
- Supercritical fluid extraction modelling with artificial neural networking.
- Super-critical fluid extraction of natural products.
- Sourodipto Modak, Aayush Raizada, Priyanka Katiyar, Sanjeev Yadav," Valorization of essential oil industry waste to produce bioenergy using thermochemical conversion process"., International Conference in Chemical Engineering :Enabling Transition towards sustainable future ,September 8-10,2022, IIT Roorkee.
- Sourodipto Modak and Priyanka Katiyar, “Physical, Chemical, and Thermal evaluation of Spent carrot seeds waste (SCSW) for thermochemical conversion”, 9th International Conference on Engineering for Waste and Biomass Valorisation (WasteEng2022), June 27-30, 2022 - Copenhagen – Denmark.
- Sandra Saju, Sourodipto Modak, Priyanka Katiyar and Karan Gupta, “Development and physico-chemical characterization of thermally treated spent turmeric root waste to treat dye containing wastewater”, 1st International Conference on “Advances in Water Treatment and Management held at PDEU Gandhinagar, Gujarat, India, 25-26 March 2022.
- Presented a paper titled as “Nutrient analysis of Ligno-cellulosic agro-residue for bioenergy production” in CHEMIXIR: 16th Engineering Today 2021, Student technical symposium and Exposition organized by AISSMS college of engineering, Pune, Maharastra, India 29-30 September & 1 October 2021.
- Priyanka and Shabina Khanam, “Investigation of influential parameter in the supercritical fluid extraction of turmeric root: a screening design study”, 3rd International Conference on sustainable energy and environmental challenges held at IIT Roorkee, on 18-21 December, 2018.
- Priyanka and Shabina Khanam, “Simulation of Supercritical Fluid Extraction Process”, International Conference of COMSOL Multiphysics held in Pune on 28-29 October 2015, Conference Proceeding.
- Priyanka and Shabina Khanam, “Supercritical Fluid Extraction of Natural Products: A Review”, International conference on “Electrical, Electronics, Engineering Trends, Communication, Optimization and Sciences (EEECOS 2014) held at Dhanekula Institute of Engineering and Technology, Vijayawada, Andhra Pradesh, India on 11-12 October,2014.