Wastewater worries of hospitals

Wastewater worries of hospitals

The RTM Remedy 

  • Real Time Monitoring (RTM) comes handy when it comes to addressing the challenges related to wastewater monitoring that the hospitals face. Currently Greenvironmentindia’s RTMs are installed in Ramaiah hospital, Bangalore and Baby Memorial Hospital, Kozhikode.   
  • The RTM at Baby Memorial Hospital, Kozhikode helped to save Rs. 8.9 lakhs and reduce freshwater consumption by 33% during last year. The treated water is being used for toilet fleshing, landscaping and washing of pavements. Smart automated Chlorine dosing and UV disinfection help the treated water bacteria-free. 

The challenges related to water that the hospitals face is many. Demand for constant supply in higher quantities, maintaining quality requirements and ensuring optimal usage requires constant monitoring. But the greater challenge is treatment of wastewater, which may contain toxic, nonbiodegradable, infectious pollutants and biological active substances, which are harmful for humans, aquatic life and environment.  

Unfortunately, in India, it is often found that hospital effluents are drained into municipal wastewater systems, into water bodies without any treatment. Such discharge of hospital wastewater causes entering of the contaminants including pharmaceutical residues to the food chain or in drinking water. It also harms environment in the long run. 

If monitored properly, the wastewater can be reused, which will reduce dependence of freshwater and save water-spend.  It helps to reduce water footprint and boosts the environmental credentials. At times, with the watchful eyes of state pollution control bodies are at big hospitals for irresponsible discharge of effluents, monitoring systems for hospital wastewater is increasingly in demand.   

The water worries 

The water requirement for hospitals is very high when compared to domestic water needs. The water requirement of a hospital is 450 litres per head per day (lphd), according to the Indian standard basic requirements for water supply, drainage and sanitation, set by the Bureau of Indian Standards (BIS). The domestic water requirement of urban communities set by BIS is 150 to 200 lphd.  

The water requirements in hospitals are multifarious in nature. It ranges from cleaning, laundry, washing, bathing, laboratory processes, and other technical processes such as cooling water or the rinsing of X-ray films.  With such higher water requirements, grey water in huge quantities is generated in big hospitals every day.  

Hospital wastewater – What is in store? 

Wastewater from a large multi-specialty hospital usually contains a host of chemical and biological pollutants. Pharmaceutical residues, antibiotics, chemical reagents, antineoplastic, radionuclide, and other harmful matter besides a large variety of substances used for medical, laboratories, research purposes, and also include excreta from patients found in abundance in hospital wastewater. These effluents also carry pathogenic microorganisms such as viruses, bacteria, fungi etc. 

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