13th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing: Novel Approaches to Sustainable Manufacturing I
Sponsored by: ACerS Engineering Ceramics Division
Program Organizers: Surojit Gupta, University of North Dakota; Rajiv Asthana, University of Wisconsin; Hisayuki Suematsu, Nagaoka University of Technology; Mritunjay Singh, Ohio Aerospace Institute; Enrico Bernardo, University of Padova; Yiquan Wu, Alfred University; Zhengyi Fu, Wuhan University of Technology; Allen Apblett, Oklahoma State University; Tatsuki Ohji, National Institute of Advanced Industrial Science and Technology
Monday 2:00 PM
October 18, 2021
Room: A212
Location: Greater Columbus Convention Center
Session Chair: Huong Le, Faraday Technology; Kathy Lu, University of Alabama Birmingham
2:00 PM
Continuous Electrochemical Destruction of Contaminants of Emerging Concern (CECs) for Wastewater Treatment: Huong Le1; Rajes Radhakrishnan1; Brian Skinn1; Timothy D Hall1; Stephen Snyder1; E. Jennings Taylor1; Maria Inman1; Chris Athmer2; 1Faraday Technology; 2Terran Corporation
Wastewater treatment demands technologies that can efficiently remove CECs from effluent discharge. Per-/polyfluorinated alkyl species (PFAS) and pharmaceuticals are separately recognized as emerging contaminants due to their bioactivity, wide usage, and potential health and ecological risks. In this presentation, we will discuss our recent progress concerning the development of an economical and energy-efficient process for remediation of these CECs. Within this context, Faraday has recently demonstrated a continuous pulsed-waveform electrochemical technology to destroy CECs in industrial wastewater, landfill leachate, and groundwater from soil. As a specific example, preliminary tests revealed that a boron-doped diamond electrocatalyst demonstrated PFOS destruction of 97%+ within one hour of processing, as measured by quantitative LC-MS analysis. The proposed technology for CECs degradation can be can be flexibly applied at large wastewater treatment facilities and also on a smaller scale for applications like on-site wastewater systems to reuse water from buildings, toilets, and showers.
2:20 PM Cancelled
Design of Novel Electrocoagulation Systems for Produced Water Treatment: Stephen Polkowski1; Pankaj Sarin1; 1Oklahoma State University
Electrocoagulation (EC) has garnered interest for treatment of produced water (PW) from oil and gas wells. Literature reports indicate EC treated PW will be suitable for reverse osmosis treatment and show low power consumption and cost effectiveness. Additionally, EC can serve as a hydrogen generation process for emerging fuel cell markets. A major limitation of current EC technology to treat PW is low efficiency and limited electrode lifetimes primarily due to oxide layer formations on the cathode. Novel high surface area electrodes were developed with rapid regeneration capabilities. These electrodes feature temporary electrode coatings of electronically conductive powders deposited using electromagnets (EM). Electrode coatings can be easily removed by depowering the EM and “scrubbing” via agitation when required. The performance of the developed EM electrodes was compared with standard metal electrodes. Results on EC of PW using these electrodes will be presented and strategies for efficiency enhancement will be discussed.
2:40 PM
Microstructural Evolution and Mechanical Properties of Shear Assisted Processing and Extrusion (ShAPE) Processed Aluminum Alloys: Rajib Kalsar1; Xiaolong Ma1; Jens Darsell1; Miao Song1; Nicole Overman1; Keerti Kappagantula1; Vineet Joshi1; 1Pacific Northwest National Laboratory
Shear assisted processing and extrusion (ShAPE) is a newly developed solid-state processing technique and emerging as a potential processing method of microstructural modification to improve the performance of alloys. In this study, the ShAPE process has been utilized to extrude Al alloys to achieve better strength and ductility with refined microstructure. Commercial Al7075 alloy extruded in the form of rods with 5 mm diameter. Microstructure of ShAPE extruded materials showed very significant grain refinement and homogenously distributed precipitates throughout the extruded rod. Quantitative microstructural characterization was performed using scanning electron microscopy (SEM), back-scatter electron microscopy (EBSD) and transmission electron microscopy (TEM). Mechanical response was evaluated by performing tensile test of the extruded rods.
3:00 PM
Performance Assessment of Sustainable Near-dry EDM Process during Machining of Micro-channels on Ni-Ti Based Shape Memory Alloys: Ramver Singh1; Akshay Dvivedi1; Pradeep Kumar1; 1Indian Institute of Technology (IIT), Roorkee
Increasing awareness and concerns on the emission of obnoxious fumes during the electrical discharge machining (EDM) using the hydrocarbon (HC)-based dielectric oils have compelled the researchers to develop an environmentally-friendly variant of EDM process. The dry and near-dry variants of the EDM process have the potential to become a replacement for the conventional HC-based EDM variant. The concept of a near-dry variant is similar to that of the minimum quantity lubrication (MQL) method. Near-EDM process has gained attention for machining of macro-sized features. However, scant literature is available on machining of micro-sized features. Therefore, the present research deals with the fabrication of micro-channels on Ni-Ti based shape memory alloy. Further, the effect of process parameters (like current, pulse on-duration, pulse off-duration) was assessed on the volumetric material removal rate, average surface roughness, and width-overcut. The two-phase mixtures of glycerin-in-air, water-in-air, and EDM oil-in-air were tested as the dielectrics.
3:20 PM Break
3:40 PM
Now On-Demand Only - Vibration and Mechanical Analysis of FDM Manufactured Soybean Hull Fiber/Polymer Composites: Roshan Mishra1; Osama Sultan Bu Aamiri1; Saleh Khanjar1; Kunal Kate1; Jagannadh Satyavolu1; 1University of Louisvillle
In this study, the vibration analysis of 3D printed unfilled and filled thermoplastic copolyester (TPC) has been investigated with the purpose of determining the influence of reinforcement on the properties of 3D printed parts, and study the effectiveness of vibration response as an indicator for mechanical properties. Unfilled TPC filaments and filled TPC filaments containing 10 wt% hydrolyzed soybean hull fibers are used to manufacture bars by fused deposition modeling (FDM). Three raster angles (0°; 90°; 0°/90°) are considered while printing the bars, and the natural frequencies and damping characteristics are measured using free vibration analysis. It is observed that the composite bars display improved mechanical properties and natural frequencies than unfilled polymer. Further, storage and loss moduli obtained from dynamic mechanical analysis (DMA) are used as inputs in Digimat simulations for determining the natural frequencies of the 3D printed bars, which compare well with the experimental observations.
4:00 PM
Design of Novel Materials from Corn-based Precursors: Surojit Gupta1; 1University of North Dakota
The drive towards circular economy has prompted renewed interest in recyclability of materials. Agricultural biomass can be potential source of precursor of materials synthesis from sustainability perspective. In this presentation, I will use corn as a case study to show some of the potential materials which can be designed from this precursor. Detailed microstructural and mechanical characterization of these materials will be presented.