Bioremediation of Domestic Waste Water by Selected Aqua Plants

Abstract

Around 30 percent of the service costs of predictable centralized wastewater treatment requires energy to operate the machines for pumping and ventilation. In comparatison, constructed marshlands involving photosynthetic plants and other organisms have a lower energy requirement. The aim of the present work is to select aquatic plants which have a high efficiency of removing pollution from wastewater. Four plants were selected out of the available plants growing in nearby wastewater. The plants were placed in raw wastewater obtained from toilets for 24 h and were tested for their endurance and growth, which are measured by chlorophyll content. Brahmi and Duckweed were found to be the finest as compared to Azolla and Hydrilla. The efficient removal of enteric infections was done by culturing the treated wastewater on Eosin Methylene Blue (EMB) agar media, a selective and differential medium for enteric gram negative bacteria. The finest performing plants were Brahmi and Hydrilla, which reduced the load by 67-70%. But Hydrilla did not grow that well when compared to Brahmi as seen from the chlorophyll content. Hence Brahmi and Duckweed can be considered as the most efficient plants for removal of virus in wastewater among the four tested plants, potentially may save energy and synthetic chemicals, required for conformist treatment systems. Brahmi, famous for its potential value as a medical compound against neuronal problems, may be used for extraction of the compound. The remaining biomass can be used as feedstock in anaerobic digesters for methane/ethanol generation, to be used as biofuels. Keywords: Aquatic Plant, Enteric Infections, Waste Water Treatment Cite this Article: Yash Jayant, Rahul Gupta. Bioremediation of Domestic Waste Water by Selected Aqua Plants International Journal of Plant Biotechnology. 2019; 5(1) 1–7p.