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Why Effluent Treatment Plant is important for Hospitals?

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<strong>Why Effluent Treatment Plant is important for Hospitals?</strong>

Industrial RO plant manufacturers have hospitals to play a crucial part in the welfare of humanity and allow research in the field of medical industry. They assist in completing many components of the healthcare system, and offer on-going assistance to address the challenging health issues that affect people.

Hospitals have been using a lot of water lately, and as the medical industry has advanced, so has the number of effluents, that is produced from hospitals on a daily basis. We need to be treated before being discharged into the drain.Industrial RO plant manufacturers.

For the treatment of hospital effluent, Effluent treatment plants are provided from one of the best manufactures in India, like Netsol Water Solutions.

Sources of hospital effluent

The following list of hospital units produces effluents:

  • Patient wards and administrative area,
  • Kitchen,
  • Canteen,
  • Laundry facilities ,
  • Operating rooms and intensive care units,
  • Radiology and dialysis division,
  • Laboratories, etc.

Characteristics of hospital effluent

Hospital effluent may contain a wide range of potentially dangerous substances at high concentrations, including microbiological pathogens, radioactive isotopes, disinfectants and sterilizants, medicines and their metabolites, chemical compounds, heavy metals, pharmaceuticals, etc.

Types of wastewater/effluent produced in hospitals

Hospital wastewater is divided into the following categories:

  • Blackwater: This highly contaminated effluent includes faeces, urine, harmful chemicals, etc.
  • Greywater: This low-level effluent contains traces left over from washing, bathing, lab procedures, and other activities.
  • Stormwater: This refers to the rainwater that falls on hospital grounds, roofs, and other locations.

Why Effluent Treatment Plant is important for Hospitals?

The primary goal of the Effluent Treatment Plant (ETP) is to remove as much organic matter and suspended solids as possible, before the wastewater is released back into the environment, or used for other medical functions.

Stages of effluent treatment in hospitals

Sequences of processes are taken while creating an effluent treatment plant for hospitals. The conventional methods used to clear the influent of contaminants are listed below:

  1. Preliminary stage

The most important part of the treatment process in most ETPs is the preliminary stage, which is also known as pre-treatment. To filter large-sized suspended materials like paper, plastics, metals, garbage, rags, and many more from entering raw wastewater/effluent, it uses bar screens that come in a range of shapes and sizes.

If these materials are not removed, they could seriously harm plant machinery. Additionally, grit chambers are used to remove the inorganic sediment, which is known as grit.

  • Primary stage

The second stage of the effluent treatment process is the primary stage. During this stage, particles and greases are physically separated from wastewater.

About 60–70% of the settled material, also known as primary sludge or primary effluent, is made up of solids.

  • Secondary treatment

When biological treatment procedures are used at this stage, around 80–90% of organic materials can be eliminated. The majority of hospital ETPs employ the “activated sludge method,” in which liquid effluent is introduced into an aeration tank, and mixed with air to promote the growth of bacteria and, as a result, the breakdown of organic matter.

The heavier material that falls to the bottom and is known as “active sludge” or secondary effluent, is removed from the aerated water when it reaches the secondary clarifier. To speed up the breakdown of organic matter, some of the sludge that still includes bacteria is pumped back into the aeration tank.

  • Tertiary or advanced treatment

In the majority of ETPs, the final phase is tertiary treatment. In this stage, the organic materials and suspended particles that are not removed during secondary treatment, are removed.

Depending on the quality of the effluent, a variety of disinfectants might be utilized. To achieve this, chlorine, UV radiation, ozone, and other chemical or physical disinfectants are used.


Untreated effluent can pose considerable health problems when it combines with groundwater, because it can spread infectious diseases to persons with weakened immune systems. As a result, effluent treatment facilities in hospitals are always required, to minimize negative environmental effects.

Get in touch with Netsol Water Solutions to discuss ETP design, manufacturing, and installation in hospitals. For any other support, or inquiries, call on +91-9650608473 or email at

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