Dr. Rama Rao Karri

Verified email at gmail.com

Senior Assistant Professor, Petroleum and Chemical Engineering,
Universiti Teknologi Brunei



                                         

http://researchid.co/dr.ramarao.karri

Dr. Rao who is presently working as Faculty in Petroleum and Chemical Engineering, Universiti Teknologi Brunei. He has worked as Post-Doctoral research fellow at National University of Singapore for six years. He has over 18 years of working experience in Academics, Industry, and Research. He has experience of working in multidisciplinary fields and has expertise in various evolutionary optimization techniques and process modeling. He has published more than 60 research articles in reputed journals and conference proceedings with a combined Impact factor of 116 and has an h-index of 15 in Scopus & 16 in Google Scholar). He has 9 book chapters published in Elsevier and Springer journals. Received Publons Peer Reviewer Award for Environment & Ecology and Crossfield categories for the year 2019, which states that I was in the top 1% of global peer reviewers

Professional activities:
Editor-in-Chief, International Journal of Chemoinformatics and Chemical Engineering (IJCCE), IGI Global, USA.
Guest editor for Spl. Issue: “Nanocomposites for the Sustainable Environment”, in Applied Sciences Journal (IF: 2.21), MDPI
Editorial board Member: SN Applied Sciences (Springer Nature): Air, Soil, and Water Research(SAGE): Green Processing and Synthesis (IF: 0.736, DeGruyter)
Peer-review member in more than 55 reputed journals from Elsevier (12), Springer (10), Taylor & Francis (4), Scientific Reports and other reputed journals (20).

EDUCATION

Post-Doc at National University of Singapore
PhD in Chemical Engineering from Indian Institute of Technology (IIT) Delhi
M.Tech from IIT Kanpur, India
B. Tech from Andhra University College of Engineering, Visakhapatnam.

RESEARCH INTERESTS

Process modeling and simulation; Multi-objective optimization; machine learning; Nanomaterials; Wastewater treatment; nanocomposite; sustainable water purification; Material Synthesis

67

Scopus Publications

1539

Scholar Citations

22

Scholar h-index

39

Scholar i10-index

Scopus Publications

  • Process optimization and enhancement of pesticide adsorption by porous adsorbents by regression analysis and parametric modelling
    Mohammad Hadi Dehghani, Amir Hessam Hassani, Rama Rao Karri, Bahareh Younesi, Mansoureh Shayeghi, Mehdi Salari, Ahmad Zarei, Mahmood Yousefi, and Zoha Heidarinejad

    Scientific Reports, eISSN: 20452322, Published: December 2021 Springer Science and Business Media LLC
    AbstractIn the present study, the adsorptive removal of organophosphate diazinon pesticide using porous pumice adsorbent was experimentally investigated in a batch system, modelled and optimized upon response surface methodology (RSM) and artificial neural network-genetic algorithm (ANN-GA), fitted to isotherm, kinetic and thermodynamic models. The quantification of adsorbent elements was determined using EDX. XRD analysis was utilized to study the crystalline properties of adsorbent. The FT-IR spectra were taken from adsorbent before and after adsorption to study the presence and changes in functional groups. The constituted composition of the adsorbent was determined by XRF. Also, the ionic strength and adsorbent reusability were explored. The influences of operational parameters like pH, initial pesticide concentration, adsorbent dosage and contact time were investigated systematically. ANN-GA and RSM techniques were used to identify the optimal process variables that result in the highest removal. Based on the RSM approach, the optimization conditions for maximum removal efficiency is obtained at pH = 3, adsorbent dosage = 4 g/L, contact time = 30 min, and initial pesticide concentration = 6.2 mg/L. To accurately identify the parameters of nonlinear isotherm and kinetic models, a hybrid evolutionary differential evolution optimization (DEO) is applied. Results indicated that the equilibrium adsorption data were best fitted with Langmuir and Temkin isotherms and kinetic data were well described by pseudo-first and second-order kinetic models. The thermodynamic parameters such as entropy, enthalpy and Gibbs energy were evaluated to study the effect of temperature on pesticide adsorption.

  • Process modeling of municipal solid waste compost ash for reactive red 198 dye adsorption from wastewater using data driven approaches
    Mohammad Hadi Dehghani, Mehdi Salari, Rama Rao Karri, Farshad Hamidi, and Roghayeh Bahadori

    Scientific Reports, eISSN: 20452322, Published: December 2021 Springer Science and Business Media LLC
    AbstractIn the present study, reactive red 198 (RR198) dye removal from aqueous solutions by adsorption using municipal solid waste (MSW) compost ash was investigated in batch mode. SEM, XRF, XRD, and BET/BJH analyses were used to characterize MSW compost ash. CNHS and organic matter content analyses showed a low percentage of carbon and organic matter to be incorporated in MSW compost ash. The design of adsorption experiments was performed by Box–Behnken design (BBD), and process variables were modeled and optimized using Box–Behnken design-response surface methodology (BBD-RSM) and genetic algorithm-artificial neural network (GA-ANN). BBD-RSM approach disclosed that a quadratic polynomial model fitted well to the experimental data (F-value = 94.596 and R2 = 0.9436), and ANN suggested a three-layer model with test-R2 = 0.9832, the structure of 4-8-1, and learning algorithm type of Levenberg–Marquardt backpropagation. The same optimization results were suggested by BBD-RSM and GA-ANN approaches so that the optimum conditions for RR198 absorption was observed at pH = 3, operating time = 80 min, RR198 = 20 mg L−1 and MSW compost ash dosage = 2 g L−1. The adsorption behavior was appropriately described by Freundlich isotherm, pseudo-second-order kinetic model. Further, the data were found to be better described with the nonlinear when compared to the linear form of these equations. Also, the thermodynamic study revealed the spontaneous and exothermic nature of the adsorption process. In relation to the reuse, a 12.1% reduction in the adsorption efficiency was seen after five successive cycles. The present study showed that MSW compost ash as an economical, reusable, and efficient adsorbent would be desirable for application in the adsorption process to dye wastewater treatment, and both BBD-RSM and GA-ANN approaches are highly potential methods in adsorption modeling and optimization study of the adsorption process. The present work also provides preliminary information, which is helpful for developing the adsorption process on an industrial scale.

  • Functionalized multi-walled carbon nanotubes and hydroxyapatite nanorods reinforced with polypropylene for biomedical application
    Fahad Saleem Ahmed Khan, N. M. Mubarak, Mohammad Khalid, Rashmi Walvekar, E. C. Abdullah, Awais Ahmad, Rama Rao Karri, and Harshini Pakalapati

    Scientific Reports, eISSN: 20452322, Published: December 2021 Springer Science and Business Media LLC
    AbstractModified multi-walled carbon nanotubes (f-MWCNTs) and hydroxyapatite nanorods (n-HA) were reinforced into polypropylene (PP) with the support of a melt compounding approach. Varying composition of f-MWCNTs (0.1–0.3 wt.%) and nHA (15–20 wt.%) were reinforced into PP, to obtain biocomposites of different compositions. The morphology, thermal and mechanical characteristics of PP/n-HA/f-MWCNTs were observed. Tensile studies reflected that the addition of f-MWCNTs is advantageous in improving the tensile strength of PP/n-HA nanocomposites but decreases its Young’s modulus significantly. Based on the thermal study, the f-MWCNTs and n-HA were known to be adequate to enhance PP’s thermal and dimensional stability. Furthermore, MTT studies proved that PP/n-HA/f-MWCNTs are biocompatible. Consequently, f-MWCNTs and n-HA reinforced into PP may be a promising nanocomposite in orthopedics industry applications such as the human subchondral bone i.e. patella and cartilage and fabricating certain light-loaded implants.

  • Processes and separation technologies for the production of fuel-grade bioethanol: a review
    Samira Karimi, Rama Rao Karri, Mohammad Tavakkoli Yaraki, and Janardhan Reddy Koduru

    Environmental Chemistry Letters, ISSN: 16103653, eISSN: 16103661, Pages: 2873-2890, Published: August 2021 Springer Science and Business Media LLC
    Bioethanol produced from biological resources is considered as an alternative, renewable, and sustainable energy source in the context of the circular economy. Moreover, bioethanol is a biofuel that has similar energy content to gasoline, but emits less toxic pollutants compared to fossil fuels. Yet bioethanol must be anhydrous to be mixed with regular gasoline and is then utilized as a vehicle fuel. Different techniques have been developed to obtain anhydrous ethanol. Here, we compare techniques for dehydration of bioethanol, including adsorption and distillation. We present the performance of the process, product recovery, and energy consumption of the pressure swing adsorption method, which is effective and widely used.

  • Preparation and characterization of Azadirachta indica A. Juss. plant based natural coagulant for the application of urban sewage treatment: Modelling and cost assessment
    Karchiyappan Thirugnanasambandham and Rama Rao Karri

    Environmental Technology and Innovation, eISSN: 23521864, Published: August 2021 Elsevier BV

  • A comprehensive review on magnetic carbon nanotubes and carbon nanotube-based buckypaper for removal of heavy metals and dyes
    Fahad Saleem Ahmed Khan, Nabisab Mujawar Mubarak, Yie Hua Tan, Mohammad Khalid, Rama Rao Karri, Rashmi Walvekar, Ezzat Chan Abdullah, Sabzoi Nizamuddin, and Shaukat Ali Mazari

    Journal of Hazardous Materials, ISSN: 03043894, eISSN: 18733336, Volume: 413, Published: 5 July 2021 Elsevier BV

  • Improvement in phenol adsorption capacity on eco-friendly biosorbent derived from waste Palm-oil shells using optimized parametric modelling of isotherms and kinetics by differential evolution
    J.N. Sahu, Rama Rao Karri, and N.S. Jayakumar

    Industrial Crops and Products, ISSN: 09266690, Volume: 164, Published: June 2021 Elsevier BV

  • Modeling of a long sand-pack for heavy crude oil through depletion tests utilizing methane gas
    Bashir Busahmin, Rama Rao Karri, Stephen Tyson, and Morteza Jami

    Petroleum, ISSN: 24056561, eISSN: 24055816, Pages: 188-198, Published: June 2021 Elsevier BV

  • Process modeling, characterization, optimization, and mechanisms of fluoride adsorption using magnetic agro-based adsorbent
    Mohammad Hadi Dehghani, Solmaz Gholami, Rama Rao Karri, Eder C. Lima, Amir Hossein Mahvi, Shahrokh Nazmara, and Mehdi Fazlzadeh

    Journal of Environmental Management, ISSN: 03014797, eISSN: 10958630, Volume: 286, Published: 15 May 2021 Elsevier BV
    In this study, fluoride removal from polluted potable water using magnetic carbon-based adsorbents derived from agricultural biomass was thoroughly investigated. An experimental matrix is designed considering the interactive effects of independent process variables (pH, adsorbent dose, contact time, and initial fluoride concentration) on the removal efficiency. Isotherms and kinetics studies, as well as anions interactions, were also investigated to understand the adsorption mechanisms further. The model parameters of isotherms and kinetics are estimated using nonlinear differential evolution optimization (DEO). Approaches like adaptive neuro-fuzzy inference system (ANFIS) and response surface methodology (RSM) are implemented to predict the fluoride removal and identify the optimal process values. The optimum removal efficiency of GAC-Fe3O4 (89.34%) was found to be higher than that of PAC-Fe3O4 (85.14%). Kinetics experiments indicated that they follow the intraparticle diffusion model, and adsorption isotherms indicated that they follow Langmuir and Freundlich models. Both PAC-Fe3O4 and GAC-Fe3O4 adsorbents have shown an adsorption capacity of 1.20 and 2.74 mg/g, respectively. The model predictions from ANFIS have a strong correlation with experimental results and superior to RSM predictions. The shape of the contours depicts the nonlinearity of the interactive effects and the mechanisms in the adsorption process.

  • Lanthanum-zinc binary oxide nanocomposite with promising heterogeneous catalysis performance for the active conversion of 4-nitrophenol into 4-aminophenol
    Ikram Ahmad, Muhammad Asghar Jamal, Miara Iftikhar, Awais Ahmad, Shahid Hussain, Humaira Asghar, Muhammad Saeed, Ammar Bin Yousaf, Rama Rao Karri, Nada Sulaymaniyah Al-kadhi, Mohamed Ouladsmane, Ayman Ghfar, and Safia Khan

    Coatings, eISSN: 20796412, Published: May 2021 MDPI AG
    This work intended to enhance the unique and outstanding properties of lanthanum by synthesizing its nanocomposite. A lanthanum-based nanocomposite was prepared by a simple and cost-effective “co-precipitation” method. Lanthanum nitrate (La (NO3)3) and zinc nitrate (Zn (NO3)2) were used as precursors. The lanthanum/zinc oxide nano composite formed was then calcined at 450 °C for 4 h in order to obtain a fine powder with size in the nano range of 1–100 nm. Characterization of the prepared catalyst was done by ultraviolet/visible spectroscopy, Fourier transform infrared spectroscopy, and photoluminescence. Crystallinity and morphology were found by X-ray diffraction and scanning electron microscopy. The synthesized nanocomposite material was also tested for heterogeneous catalytic applications of 4-nitrophenol (4-NP) reduction into 4-aminophenol (4-AP). It was found to be successful in complete reduction of 4-NP with enhanced catalytic performance.

  • Predictive capability evaluation and optimization of sustainable biodiesel production from oleaginous biomass grown on pulp and paper industrial wastewater
    Madhu Vasaki E, Rama Rao Karri, Gobinath Ravindran, and Balasubramanian Paramasivan

    Renewable Energy, ISSN: 09601481, eISSN: 18790682, Volume: 168, Pages: 204-215, Published: May 2021 Elsevier BV

  • Magnetic nanocomposites for sustainable water purification—a comprehensive review
    Ahsan Mehmood, Fahad Saleem Ahmed Khan, Nabisab Mujawar Mubarak, Yie Hua Tan, Rama Rao Karri, Mohammad Khalid, Rashmi Walvekar, Ezzat Chan Abdullah, Sabzoi Nizamuddin, and Shaukat Ali Mazari

    Environmental Science and Pollution Research, ISSN: 09441344, eISSN: 16147499, Pages: 19563-19588, Published: April 2021 Springer Science and Business Media LLC
    Numerous contaminants in huge amounts are discharged to the environment from various anthropogenic activities. Waterbodies are one of the major receivers of these contaminants. The contaminated water can pose serious threats to humans and animals, by distrubing the ecosystem. In treating the contaminated water, adsorption processes have attained significant maturity due to lower cost, easy operation and environmental friendliness. The adsorption process uses various adsorbent materials and some of emerging adsorbent materials include carbon- and polymer-based magnetic nanocomposites. These hybrid magnetic nanocomposites have attained extensive applications in water treatment technologies due to their magnetic properties as well as combination of unique characteristics of organic and inorganic elements. Carbon- and polymer-related magnetic nanocomposites are more adapted materials for the removal of various kinds of contaminants from waterbodies. These nanocomposites can be produced via different approaches such as filling, pulse-laser irradiation, ball milling, and electro-spinning. This comprehensive review is compiled by reviewing published work of last the latest recent 3 years. The review article extensively focuses on different approaches for producing various carbon- and polymer-based magnetic nanocomposites, their merits and demerits and applications for sustainable water purification. More specifically, use of carbon- and polymer-based magnetic nanocomposites for removal of heavy metal ions and dyes is discussed in detail, critically analyzed and compared with other technologies. In addition, commercial viability in terms of regeneration of adsorbents is also reviewed. Furthermore, the future challenges and prospects in employing magnetic nanocomposites for contaminant removal from various water sources are presented.

  • A simulated annealing optimization algorithm based nonlinear model predictive control strategy with application
    M. Mallaiah, K. Rama Rao, and Ch. Venkateswarlu

    Evolving Systems, ISSN: 18686478, eISSN: 18686486, Pages: 225-231, Published: March 2021 Springer Science and Business Media LLC

  • Comprehensive review on carbon nanotubes embedded in different metal and polymer matrix: fabrications and applications
    Fahad Saleem Ahmed Khan, N. M. Mubarak, Mohammad Khalid, Mohammad Mansoob Khan, Yie Hua Tan, Rashmi Walvekar, E. C. Abdullah, Rama Rao Karri, and Muhammad Ekhlasur Rahman

    Critical Reviews in Solid State and Materials Sciences, ISSN: 10408436, eISSN: 15476561, Published: 2021 Informa UK Limited

  • Current Perspectives and Future Prospects of Nano-Biotechnology in Wastewater Treatment
    J. N. Sahu, Rama Rao Karri, Hossain M. Zabed, Shahriar Shams, and Xianghui Qi

    Separation and Purification Reviews, ISSN: 15422119, eISSN: 15422127, Pages: 139-158, Published: 2021 Informa UK Limited
    Industrialization and urbanization are contributing extensively to the production of wastewater, which mostly ends up untreated in water bodies, leading to water pollution. Treatment of wastewater could be a promising approach in mitigating the pollution. Nano-biotechnology (NBT), which is an emerging technology, has excellent potential in wastewater treatment. Nano-materials have the ability to remove pollutants and pathogens by working either as the stand-alone treatment agents or by being incorporated into biological membranes and integrated with the conventional treatment techniques. This review presents an overview of possible applications of NBT in wastewater treatment, highlighting the antimicrobial activities of various nanomaterials, and describing the production of algal membrane-based bioreactor and microbial fuel cells. Significant difficulties in NBT utilization in wastewater treatment are also discussed. Further research directions needed to provide a sustainable method of water purification are proposed.

  • Magnetic nanoparticles incorporation into different substrates for dyes and heavy metals removal—A Review
    Fahad Saleem Ahmed Khan, Nabisab Mujawar Mubarak, Yie Hua Tan, Rama Rao Karri, Mohammad Khalid, Rashmi Walvekar, Ezzat Chan Abdullah, Shaukat Ali Mazari, and Sabzoi Nizamuddin

    Environmental Science and Pollution Research, ISSN: 09441344, eISSN: 16147499, Pages: 43526-43541, Published: December 2020 Springer Science and Business Media LLC

  • Extraction of reinforced epoxy nanocomposite using agricultural waste biomass
    Manpreet Kaur, N. M. Mubarak, Bridgid Lai Fui Chin, Mohammad Khalid, Rama Rao Karri, Rashmi Walvekar, E.C. Abdullah, and Faisal Amri Tanjung

    IOP Conference Series: Materials Science and Engineering, ISSN: 17578981, eISSN: 1757899X, Volume: 943, Published: 2 November 2020 IOP Publishing

  • Removal of dye using peroxidase-immobilized Buckypaper/polyvinyl alcohol membrane in a multi-stage filtration column via RSM and ANFIS
    Yien Jun Lau, Rama Rao Karri, Nabisab Mujawar Mubarak, Sie Yon Lau, Han Bing Chua, Mohammad Khalid, Priyanka Jagadish, and Ezzat Chan Abdullah

    Environmental Science and Pollution Research, ISSN: 09441344, eISSN: 16147499, Pages: 40121-40134, Published: 1 November 2020 Springer Science and Business Media LLC

  • Regression and mathematical modeling of fluoride ion adsorption from contaminated water using a magnetic versatile biomaterial & chelating agent: Insight on production & experimental approaches, mechanism and effects of potential interferers
    Mohammad Hadi Dehghani, Rama Rao Karri, Eder C. Lima, Amir Hossein Mahvi, Shahrokh Nazmara, Abdol Mohammad Ghaedi, Mehdi Fazlzadeh, and Solmaz Gholami

    Journal of Molecular Liquids, ISSN: 01677322, Volume: 315, Published: 1 October 2020 Elsevier BV

  • Insights into endocrine-disrupting Bisphenol-A adsorption from pharmaceutical effluent by chitosan immobilized nanoscale zero-valent iron nanoparticles
    Mohammad Hadi Dehghani, Rama Rao Karri, Mahmood Alimohammadi, Shahrokh Nazmara, Ahmad Zarei, and Zhyar Saeedi

    Journal of Molecular Liquids, ISSN: 01677322, Volume: 311, Published: 1 August 2020 Elsevier BV

  • Magnetic nanoadsorbents’ potential route for heavy metals removal—a review
    Fahad Saleem Ahmed Khan, Nabisab Mujawar Mubarak, Mohammad Khalid, Rashmi Walvekar, Ezzat Chan Abdullah, Shaukat A. Mazari, Sabzoi Nizamuddin, and Rama Rao Karri

    Environmental Science and Pollution Research, ISSN: 09441344, eISSN: 16147499, Pages: 24342-24356, Published: 1 July 2020 Springer Science and Business Media LLC

  • Modelling of methylene blue adsorption using peroxidase immobilized functionalized Buckypaper/polyvinyl alcohol membrane via ant colony optimization
    Lau Yien Jun, Rama Rao Karri, N.M. Mubarak, Lau Sie Yon, Chua Han Bing, Mohammad Khalid, Priyanka Jagadish, and E.C. Abdullah

    Environmental pollution (Barking, Essex : 1987), eISSN: 18736424, Volume: 259, Pages: 113940, Published: 1 April 2020 Elsevier BV

  • Modeling and optimization by particle swarm embedded neural network for adsorption of methylene blue by jicama peroxidase immobilized on buckypaper/polyvinyl alcohol membrane
    Lau Yien Jun, Rama Rao Karri, Lau Sie Yon, N.M. Mubarak, Chua Han Bing, Khalid Mohammad, Priyanka Jagadish, and E.C. Abdullah

    Environmental Research, ISSN: 00139351, eISSN: 10960953, Volume: 183, Published: April 2020 Elsevier BV

  • Modelling of methylene blue adsorption using peroxidase immobilized functionalized Buckypaper/polyvinyl alcohol membrane via ant colony optimization
    Lau Yien Jun, Rama Rao Karri, N.M. Mubarak, Lau Sie Yon, Chua Han Bing, Mohammad Khalid, Priyanka Jagadish, and E.C. Abdullah

    Environmental Pollution, ISSN: 02697491, eISSN: 18736424, Volume: 259, Published: April 2020 Elsevier BV

  • Statistical modelling of endocrine disrupting compounds adsorption onto activated carbon prepared from wood using CCD-RSM and DE hybrid evolutionary optimization framework: Comparison of linear vs non-linear isotherm and kinetic parameters
    Mohammad Hadi Dehghani, Rama Rao Karri, Zeinab Tafaroji Yeganeh, Amir Hossein Mahvi, Heshmatollah Nourmoradi, Mehdi Salari, Ahmad Zarei, and Mika Sillanpää

    Journal of Molecular Liquids, ISSN: 01677322, Volume: 302, Published: 15 March 2020 Elsevier BV

RECENT SCHOLAR PUBLICATIONS

  • Evaluation of surface phenomena of magnetic biomass for dye removal via surface modeling
    LP Lingamdinne, RR Karri, MR Khan, YY Chang, JR Koduru
    Journal of Environmental Chemical Engineering 9 (5), 105953 2021

  • Carbon and polymer-based magnetic nanocomposites for oil-spill remediation—a comprehensive review
    A Mehmood, FSA Khan, NM Mubarak, SA Mazari, AS Jatoi, M Khalid, ...
    Environmental Science and Pollution Research, 1-20 2021

  • Magnetic-watermelon rinds biochar for uranium-contaminated water treatment using an electromagnetic semi-batch column with removal mechanistic investigations
    LP Lingamdinne, JS Choi, GKR Angaru, RR Karri, JK Yang, YY Chang, ...
    Chemosphere, 131776 2021

  • Preparation and characterization of Azadirachta indica A. Juss. plant based natural coagulant for the application of urban sewage treatment: Modelling and cost assessment
    K Thirugnanasambandham, RR Karri
    Environmental Technology & Innovation 23, 101733 2021

  • Global water challenge and future perspective
    U Kumari, K Swamy, A Gupta, RR Karri, BC Meikap
    Green Technologies for the Defluoridation of Water, 197-212 2021

  • Entropy and MTOPSIS assisted central composite design for preparing activated carbon toward adsorptive defluoridation of wastewater
    K Anupam, V Yadav, RR Karri
    Green Technologies for the Defluoridation of Water, 119-140 2021

  • Adsorption: Fundamental aspects and applications of adsorption for effluent treatment
    C Lima, MH Dehghani, A Guleria, F Sher, RR Karri, GL Dotto, ...
    Green Technologies for the Defluoridation of Water, 41-88 2021

  • Green Technologies for the Defluoridation of Water
    MH Dehghani, RR Karri, E Lima
    Elsevier 2021

  • Environmental and Health Management of Novel Coronavirus Disease
    MH Dehghani, RR Karri, S Roy
    Elsevier 2021

  • Process Optimization and Modeling of Hydraulic Fracturing Process Wastewater Treatment Using Aerobic Mixed Microbial Reactor via Response Surface Methodology
    T Karchiyappan, RR Karri
    Soft Computing Techniques in Solid Waste and Wastewater Management, 351-364 2021

  • Solid Waste — Sources, Toxicity, and Their Consequences to Human Health
    MH Dehghani, GA Omrani, RR Karri
    Soft Computing Techniques in Solid Waste and Wastewater Management, 205-214 2021

  • Review of Soft Computing Techniques for Modeling, Design, and Prediction of Wastewater Removal Performance
    P Banerjee, RR Karri, A Mukhopadhyay, P Das
    Soft Computing Techniques in Solid Waste and Wastewater Management, 55-74 2021

  • Wastewater - Sources, Toxicity, and Their Consequences to Human Health
    RR Karri, G Ravindran, MH Dehghani
    Soft Computing Techniques in Solid Waste and Wastewater Management, 3-34 2021

  • Soft Computing Techniques in Solid Waste and Wastewater Management
    RR Karri, G Ravindra, MH Dehghani
    Elsevier 2021

  • Pareto Multiobjective Bioinspired Optimization of Neuro-Fuzzy Technique for Predicting Sediment Transport in Sewer Pipe
    I Ebtehaj, H Bonakdari, H Azimi, B Gharabghi, SHA Talesh, A Jamali, ...
    Soft Computing Techniques in Solid Waste and Wastewater Management, 131-144 2021

  • Application of Artificial Neural Networks on Water and Wastewater Prediction: A Review
    HM Bui, HN Bui, TM Le, RR Karri
    Soft Computing Techniques in Solid Waste and Wastewater Management, 95-110 2021

  • Management of environmental health to prevent an outbreak of COVID-19: a review
    M Mousazadeh, Z Naghdali, N Rahimian, M Hashemi, B Paital, ...
    Environmental and Health Management of Novel Coronavirus Disease (COVID-19 2021

  • Process optimization and enhancement of pesticide adsorption by porous adsorbents by regression analysis and parametric modelling
    MH Dehghani, AH Hassani, RR Karri, B Younesi, M Shayeghi, M Salari, ...
    Scientific reports 11 (1), 1-15 2021

  • Process modeling of municipal solid waste compost ash for reactive red 198 dye adsorption from wastewater using data driven approaches
    MH Dehghani, M Salari, RR Karri, F Hamidi, R Bahadori
    Scientific Reports 11 (1), 1-20 2021

  • Improvement in phenol adsorption capacity on eco-friendly biosorbent derived from waste Palm-oil shells using optimized parametric modelling of isotherms and kinetics by
    JN Sahu, RR Karri, NS Jayakumar
    Industrial Crops and Products 164, 113333 2021

MOST CITED SCHOLAR PUBLICATIONS

  • A comprehensive review of applications of magnetic graphene oxide based nanocomposites for sustainable water purification
    LP Lingamdinne, JR Koduru, RR Karri
    Journal of environmental management 231, 622-634 2019
    Citations: 115

  • Optimal isotherm parameters for phenol adsorption from aqueous solutions onto coconut shell based activated carbon: error analysis of linear and non-linear methods
    RR Karri, JN Sahu, NS Jayakumar
    Journal of the Taiwan Institute of Chemical Engineers 80, 472-487 2017
    Citations: 110

  • Critical review of abatement of ammonia from wastewater
    RR Karri, JN Sahu, V Chimmiri
    Journal of Molecular Liquids 261, 21–31 2018
    Citations: 87

  • Modeling and optimization by particle swarm embedded neural network for adsorption of zinc (II) by palm kernel shell based activated carbon from aqueous environment
    RR Karri, JN Sahu
    Journal of Environmental Management 206, 178-191 2018
    Citations: 87

  • Process optimization and adsorption modeling of Pb (II) on nickel ferrite-reduced graphene oxide nano-composite
    LP Lingamdinne, JR Koduru, YY Chang, RR Karri
    Journal of Molecular Liquids 250, 202-211 2018
    Citations: 79

  • Optimization and modeling of methyl orange adsorption onto polyaniline nano-adsorbent through response surface methodology and differential evolution embedded neural network
    RR Karri, M Tanzifi, MT Yaraki, JN Sahu
    Journal of Environmental Management 223, 517–529 2018
    Citations: 74

  • Modelling of fluidised-bed reactor by differential evolution optimization for phenol removal using coconut shells based activated carbon
    RR Karri, NS Jayakumar, JN Sahu
    Journal of Molecular liquids 231, 249–262 2017
    Citations: 62

  • Mathematical and kinetic modeling of biofilm reactor based on ant colony optimization
    KR Rao, T Srinivasan, C Venkateswarlu
    Process Biochemistry 45 (6), 961-972 2010
    Citations: 61

  • Improving efficacy of Cr (VI) adsorption process on sustainable adsorbent derived from waste biomass (sugarcane bagasse) with help of ant colony optimization
    RR Karri, JN Sahu, BC Meikap
    Industrial Crops and Products 143, 111927 2020
    Citations: 55

  • Synthesis of organic phase change materials (PCM) for energy storage applications: A review
    SS Magendran, FSA Khan, NM Mubarak, M Vaka, R Walvekar, M Khalid, ...
    Nano-structures & Nano-objects 20, 100399 2019
    Citations: 52

  • Process optimization and adsorption modeling using activated carbon derived from palm oil kernel shell for Zn (II) disposal from the aqueous environment using differential
    RR Karri, JN Sahu
    Journal of Molecular Liquids 265, 592–602 2018
    Citations: 47

  • Influence of fluid and operating parameters on the recovery factors and gas oil ratio in high viscous reservoirs under foamy solution gas drive
    BS Abusahmin, RR Karri, BB Maini
    Fuel 197, 497-517 2017
    Citations: 47

  • Multivariate modeling via artificial neural network applied to enhance methylene blue sorption using graphene-like carbon material prepared from edible sugar
    LP Lingamdinne, J Singh, JS Choi, YY Chang, JK Yang, RR Karri, ...
    Journal of Molecular Liquids 265, 416-427 2018
    Citations: 42

  • Parametric modelling of Pb (II) adsorption onto chitosan-coated Fe3O4 particles through RSM and DE hybrid evolutionary optimization framework
    H Rasoulzadeh, MH Dehghani, AS Mohammadi, RR Karri, R Nabizadeh, ...
    Journal of Molecular Liquids 297, 111893 2020
    Citations: 40

  • A comprehensive review of the adsorption mechanisms and factors influencing the adsorption process from the perspective of bioethanol dehydration
    S Karimi, MT Yaraki, RR Karri
    Renewable and Sustainable Energy Reviews 107, 535-553 2019
    Citations: 38

  • Magnetic nanoadsorbents’ potential route for heavy metals removal—a review
    FSA Khan, NM Mubarak, M Khalid, R Walvekar, EC Abdullah, SA Mazari, ...
    Environmental Science and Pollution Research 27 (19), 24342-24356 2020
    Citations: 30

  • Statistical modelling of endocrine disrupting compounds adsorption onto activated carbon prepared from wood using CCD-RSM and DE hybrid evolutionary optimization framework
    MH Dehghani, RR Karri, ZT Yeganeh, AH Mahvi, H Nourmoradi, M Salari, ...
    Journal of Molecular Liquids 302, 112526 2020
    Citations: 29

  • Studies on the Stability of the Foamy oil in Developing Heavy oil Reservoirs
    B Bushamin, B Miami, M Sabet, RR Karri
    Defect and Diffusion Forum 371, 111-116 2016
    Citations: 29

  • Process optimization and modeling of lead removal using iron oxide nanocomposites generated from bio-waste mass
    LP Lingamdinne, KR Vemula, YY Chang, JK Yang, RR Karri, JR Koduru
    Chemosphere 243, 125257 2020
    Citations: 26

  • Magnetic palm kernel biochar potential route for phenol removal from wastewater
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