Effluent Treatment Plant (ETP) is a crucial component of pharmaceutical and hospital labs that help in treating the wastewater generated from these facilities. The wastewater contains various pollutants such as chemicals, pharmaceuticals, microorganisms, and other hazardous substances, which can cause severe damage to the environment if left untreated.

The ETPs function by purifying the contaminated wastewater using various processes and technologies, such as physicochemical treatment, biological treatment, and tertiary treatment. In this blog, we will discuss the working principle of Effluent Treatment Plant for Pharma Labs / Hospital Labs in detail, along with the process flow diagram and drawing.

Working principle of Effluent Treatment Plant for Pharma/Hospital Labs

The working principle of ETP for Pharma Labs / Hospital Labs involves several stages of treatment, which are described below:

1. Collection and Screening: The first stage of the ETP process involves the collection of wastewater from various sources such as laboratories, sinks, and drains. The collected wastewater is then screened to remove solid particles such as debris, sand, and grit.
2. Equalization: The next stage involves the equalization of the wastewater to ensure uniformity in the composition of the wastewater. The equalization tank is designed to maintain the pH level and temperature of the wastewater.
3. pH Correction: After equalization, the pH level of the wastewater is corrected to the required level by adding chemicals such as lime or sulfuric acid.
4. Coagulation and Flocculation: The wastewater is then subjected to the coagulation and flocculation process, where chemicals such as alum, ferric chloride, or polymer are added to the wastewater to form flocs. These flocs trap the suspended and dissolved solids present in the wastewater, which can then be separated from the water.
5. Sedimentation: The flocs are allowed to settle down in a sedimentation tank, where the sedimentation process occurs. The clear water is then removed from the sedimentation tank, and the sludge is transferred to the sludge treatment section.
6. Biological Treatment: The wastewater is then subjected to the biological treatment process, where microorganisms such as bacteria, fungi, and protozoa are used to degrade the organic matter present in the wastewater. The biological treatment process involves two stages: aerobic and anaerobic digestion.
7. Tertiary Treatment: The final stage of the ETP process involves the tertiary treatment of the wastewater, where the water is subjected to various physical and chemical processes such as filtration, disinfection, and reverse osmosis. The treated water is then discharged into the environment or reused for various purposes such as irrigation or cooling water.

Process Flow Diagram and Drawing

The process flow diagram and drawing of the ETP for Pharma Labs / Hospital Labs is shown below:

As shown in the above diagram, the ETP process involves several stages of treatment, including collection and screening, equalization, pH correction, coagulation and flocculation, sedimentation, biological treatment, and tertiary treatment. The treated water is then discharged into the environment or reused for various purposes.

Conclusion

The Effluent Treatment Plant (ETP) is an essential component of pharmaceutical and hospital labs, which help in treating the wastewater generated from these facilities. The ETPs function by purifying the contaminated wastewater using various processes and technologies, such as physicochemical treatment, biological treatment, and tertiary treatment. The process flow diagram and drawing of the ETP for Pharma Labs / Hospital Labs help in understanding the working principle of ETP in detail.