New Delhi: Delhi Development Authority (DDA) has decided to implement an automation system in sewage treatment plants (STPs) to enable real-time monitoring of the quality of treated water supplied to nearly 100 parks across the city.The proposed system will allow continuous monitoring of key water quality parameters, including biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), pH levels, and the quantity of treated water generated.DDA has invited expressions of interest. Officials said STPs in DDA parks are either installed and operated by private concessionaires. In some cases, treated water is supplied through plants operated by the Delhi Jal Board (DJB).“At present, these STPs are monitored manually by section officers or other staff, who also check water quality and record meter readings. Payments to agencies are made on a per-KLD basis, depending on treated water supply. To mitigate the chances of error and to verify the claims of agencies regularly, DDA intends to introduce real-time monitoring. This will also help improve greenery in parks,” an official said.Among the parks identified for the new system are National Highway Park (NHP) at Dayanand Vihar — shifted to Children’s Park, Vivek Vihar — where a 10 KLD plant was installed in 2022; a park at Ashoka Niketan, with the site shifted to a green area at Lalita Park, where a 10 KLD plant was installed in 2022; E to I Block Park at Ashok Vihar, with a 25 KLD plant installed in 2021; Sheesh Mahal Park at Shalimar Bagh, where a 250 KLD plant was installed in 2023; and MP Green Area A-10 at Narela, which has a 50 KLD plant operational since 2021.DDA has also directed that suitable and latest wastewater treatment technologies be adopted while installing STPs. The technology will be applicable for STPs with a capacity of up to 100 KLD.
