New Delhi: Data analysis of 40, mostly five-star hotels, by the Delhi Pollution Control Committee (DPCC) shows that out of 7,708 KLD of wastewater being treated at the respective STPs of these hotels, 760 KLD of treated water is being discharged into the sewer. The remaining treated water is utilised for non-drinking purposes, including flushing and horticulture.This report was prepared after the members in the last board meeting of DPCC held in Feb raised the issue that groundwater is not exploited by five-star hotels in the city.According to the report, for 40 hotels, there is a total water demand of 12,701 KLD, which is being met by 5,948 KLD of fresh water from various agencies such as DJB, DDA, DIAL, and other sources such as tankers and authorised borewells approved by DJB.“The freshwater demand is exclusively for meeting the water demand for drinking, kitchen, laundry, swimming pool, etc. Further, 6,753 KLD of treated wastewater from in-house STPs of these hotels are used for meeting the demand of flushing, HVAC (heating, ventilation and air conditioning), DG cooling, horticulture, etc.,” the report said.Out of the total 7,708 KLD wastewater generated from these hotels, treated wastewater from hotels’ STPs is recycled and reused for various purposes. It includes flushing (1,574 KLD), HVAC (2,473 KLD), DG cooling (564 KLD), horticulture (1,897 KLD), and others (245 KLD). “760 KLD of excess treated wastewater from these hotels is being discharged into the sewer,” the report said.Of these 40 hotels, DPCC randomly inspected six hotels to verify the correctness of the information furnished by the hotels, and during inspection, it was found that 54.17% of the total water demand is met from fresh water and 45.83% is met from treated wastewater. No excess treated wastewater was being discharged into the sewer from these six hotels, the report stated.Anil Gupta, a member of the DPCC’s board, said: “During the board meeting held in Feb, I raised the issue that the water mass balance of five-star hotels should be analysed. Though a report of data analysed from 40 hotels was submitted in the recent meeting held on July 18, I have asked the DPCC to verify the information submitted by all hotels. Besides, the entire wastewater should be utilised so that there is zero liquid discharge.“
