Sewage Treatment Plant For Hospitals - Color: Inlet Variable; Treated Effluent Adjusted To About 6.5 8.5.

Sewage Treatment Plants (STPs) for hospitals are specialized wastewater treatment systems designed to handle the unique and hazardous effluent generated from healthcare facilities. Hospital sewage contains microbial pathogens, pharmaceutical residues, harmful chemicals, radioactive isotopes, and drug-resistant bacteria, requiring advanced and stringent treatment processes.

*Pre-Treatment :Removal of large solids, debris, and inorganic matter through screening and grit chambers.

* Primary Treatment :Physical separation of suspended solids and greases via primary sedimentation tanks.

* Secondary Treatment :Biological treatment using activated sludge process or MBBR to degrade organic pollutants and pathogens.

* Tertiary Treatment :Advanced filtration and disinfection methods (UV, ozone, chlorination) to remove pathogens and residual contaminants.

* Sludge Management :Safe handling, digestion, and disposal of settled solids.

Critical Considerations :

* Compliance with Central Pollution Control Board (CPCB) discharge norms and State Pollution Control Boards (SPCB).

* Real-time monitoring of parameters like pH, BOD, COD, TSS, and fecal coliforms.

* Capacity design should consider peak sewage flow and facility size.

* Design considerations for pathogen removal to prevent infection spread.

* Integration with biomedical waste management as some liquid waste may require separate treatment.

* Provisions for treated water reuse in non-potable applications like flushing, landscaping, or cooling.

1. Screening and grit removal

2. Primary sedimentation

3. Biological treatment (activated sludge or MBBR)

4. Secondary clarifier for sludge separation

5. Tertiary filtration and disinfection

6. Sludge treatment and disposal

*Prevents contamination of public water sources.

* Protects healthcare staff, patients, and the community from health hazards.

* Helps hospitals comply with environmental and health regulations.

* Enables water recycling and reduces fresh water consumption.

Hospitals require robust, reliable, and compliant STPs tailored to the specific contaminants and volume of hospital effluent to ensure safe environmental discharge and protect public health.