Evaluation of phytorid treatment system performance for the removal of heavy metals at Bindapur in South-West Delhi
2025
Phuloria, Poonam | Shah , Shachi
Delhi has witnessed rapid urbanization and human activities, leading to the generation of enormous wastewater, which, in the absence of proper treatment and disposal, is causing environmental pollution. To address the issue of environmental pollution by untreated sewage, there are certain green sustainable technologies available that provide an alternative to conventional sewage treatment plants (STPs). Constructed wetlands-based Phytorid technology is one approach to treating wastewater. Constructed wetlands (CWs) offer an eco-friendly approach for treating diverse wastewaters, including sewage and industrial and agricultural effluents. This system is based on the principles of natural wetland treatment, but it is engineered artificially. The Phytorid technology is operational at Bindapur in southwest Delhi. The treated wastewater has the potential to be reused/recycled for non-domestic purposes such as discharge into natural water bodies and use for irrigated agriculture. In this study, wastewater samples were collected from the inlet and outlet of the Phytorid treatment system to evaluate the heavy metals/nutrient removal efficiency. The percentage removal efficiency was Total Suspended Solids (79%), Biochemical Oxygen Demand (77%), Chemical Oxygen Demand (71%), Total Kjeldahl Nitrogen (29%), Total Phosphates (30%), and Fecal Coliform (100%). Out of a total of 14 metals studied, the removal rate for copper (Cu), zinc (Zn), chromium (Cr), and nickel (Ni) was found to be 100 %, 90%, 80%, and 70%, respectively.
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