Potential of Canna Indica in Root Zone Technology for Dairy Waste Water Treatment: A Review

Sindhu S., Dr. G R Vijayshankar

Abstract: This article summarizes research that looked at the use of root zone technology to remediate dairy effluent using Canna indica. Microbes, substrates, and plant types make up root zone technology. Anaerobic digestion is almost the only practical way to handle dairy effluent due to its high organic content. Nutrient absorption and incorporation into plant tissues occurs during this phase. They do this by releasing oxygen into the substrate, creating an environment where chemical oxidation and anaerobic microbes may flourish. Root zone technology that makes use of ornamental flowering plants, either in a monoculture or a combination of species, is suggested for its ability to improve the root zone's aesthetics and treat wastewater at the same time. Important functions performed by plants in CWs include providing a substrate for physical filtering of effluent, housing microbes on a vast surface area, and fueling bacteria with carbohydrates. They take in organic matter and incorporate it into plant cells. They do this by releasing oxygen into the substrate, creating an environment where chemical oxidation and aerobic microbes may flourish. Both the aesthetic value of the wastewater treatment system and the habitat they provide to animals are enhanced by these plants. Results from canna indica's use in CWs to remove pollutants from wastewater are promising. This report so summarizes previous research on Canna indica's efficacy in wastewater treatment and suggests directions for further study in this field.

Keywords: constructed wetlands, Canna indica, emerging contaminants, wastewater treatment, phytoremediation, root zone technology