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Chemical Engineering Journal publishes paper of Dr. Lakhveer Singh with Impact Factor 8.34

Dr. Lakhveer Singh, Assistant Professor, Department of Environmental Science, SRM University AP, Andhra Pradesh published a paper in the Chemical Engineering Journal with an Impact Factor of 8.34. His paper titled, Breaking the Loop: Tackling Homoacetogenesis by Chloroform to Halt Hydrogen Production-Consumption Loop in Single Chamber Microbial Electrolysis Cells is published in collaboration with Oregon State University.

Single Chamber Microbial Electrochemical Cells reactor is used to produce hydrogen. Since wastewater is used in the process, hydrogen consumers are present inside the reactors. The presence of homo acetogenesis and hydrogen production-consumption loop significantly hinders the efficient hydrogen recovery from this reactor. Removal of homo acetogenins remained a challenge that is mitigated by the research work conducted in this paper. Dr. Lakhveer informs, “Prof. Hong Liu is the mother of the bioelectrochemical system. I used to work with her for 1.5 years during my Post Doctorate. We developed the method to inhibit homo acetogenins in bioelectrochemical fuel cells for the first time to exhibit homo acetogenins which enhance the hydrogen production in scaled-up microbial electrochemical (MEC).”

Method to inhibit homo acetogenins in bioelectrochemical fuel cells

A small concentration of chloroform is used in the process, which after the experiment leaves traces of merely 0.001% which is negligible. Furthermore, 0.02 ml chloroform is used in ten litres of reactors, negating the chance of causing damage to the environment. “Microbial community analysis revealed that the amount ofhomoacetogenic Acetobacterium spp. was eliminated in the cathodic biofilms and planktonic cells by chloroform.”, enlightens Dr. Lakhveer. This method can also be applied in large scale reactors to enhance hydrogen production by inhibiting homo acetogenins. The hydrogen production rate is nearly 20 litres per hour from the reactor. The application of this reactor is the production of energy which can be used as an alternative to conventional fuel.

Advancing the work, Dr. Lakhveer aspires to improve this method in the future, through reducing the residual chloroform concentration and developing more environment-friendly inhibitor using similar mechanisms, that may lead to the practical application in MECs.

Amid the unparalleled catastrophe in the form of widespread COVID-19, SRM University AP, Andhra Pradesh, students at Semester Abroad Program develop projects to combat the crisis. Vyshnavi G and Padmateja, 3rd year, Computer Science and Engineering students went to University of Wisconsin, Madison, and University of California, Berkeley respectively for their Semester Abroad Program. During their stay, they presented two projects at LA Hacks 2020, Southern California, and won accolades galore. The hackathon is one of the largest in the world and was held on March 27-29. Many hackers and innovators participated to create and collaborate at UCLA’s virtual event. SRM AP students submitted two projects in this hackathon as a single team and emerged as a finalist in the “Best Overall Hack”. The students developed Safely, the project title sponsored by Facebook as “Best Collaboration Hack”, and also worked on Go Farm which was sponsored by Honey as “Best Consumer Hack”. The team coordinated through Slack as the hackathon was turned into a virtual competition with the unfortunate outbreak of COVID-19.

Safely is a society-based pandemic monitoring application for reporting and tracking precise geolocations of COVID-19 cases. Safely allows users to report their own condition, be it healthy, symptomatic, diagnosed, or recovered along with their geolocation. The application enables users to identify areas around them on a map. Based on the shade of the regions displayed on the map, the user deciphers the risk of contagion. Areas with symptomatic users display lighter shades, whereas locations with diagnosed patients and regions with a high concentration of affected users, show up as darker shades on the map. “With COVID-19 spreading rapidly, there are not enough resources to find or report the exact geographical information of new cases. People would want to be cautious by avoiding specific locations that have a lot of reported cases. Also, it enables help agencies to recognize areas where resources are required to be sent. Tracking COVID-19 can be especially difficult in developing countries with weaker infrastructure. “, Vyshnavi G explains the issues that inspired her to build this project.

GoFarm primarily benefits the farmers and improves consumer satisfaction. It is an application where a farmer can post information regarding harvested crops including vegetables, pulses along with quoting the price of the products. The customer can search for nearby farms using google maps and purchase through this platform. Padmateja says, “In India where agriculture sector employs more than 50% of the total workforce, we have come across many incidents in which farmers are suffering because of high debt burdens, corruption in subsidies, and crop failure. We thought to use our skills to develop an application that gives them profit. Not getting enough money for their crop is the most serious problem that they are facing right now. At the same time, we decided to emphasize on the consumer satisfaction. Eliminating third parties and connecting farmers with customers would be helpful in upgrading the agricultural sector. Due to COVID-19 outbreak, it has become more crucial for the consumers to be informed regarding stores responsible for the delivery of the product.”

In the future, the team wants to add a crop recommendation system for the farmers in the platform based on weather conditions. The students also plan to expand the availability of the application to many farmers and consumers across the nation.

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