Effluent Treatment Plant (ETP)

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Effluent Treatment Plant (ETP)

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Effluent Treatment Plant & It’s function

ETP stands for Effluent treatment plant. It is a wastewater treatment process which is used to treat water and wastewater problems. This plant is mainly used in large industrial sectors such as pharmaceuticals, drugs, chemicals, refineries, dairy, and textiles where there is a huge possibility of extreme water pollution. 

Even though it plays a vital role in the treatment of industrial waste, other hazardous Wastewater treatment.

On the other hand, we can say, Effluent Treatment Plant is specially designed to clean/purify the industrial wastewater for its reuse. Also, it assists to release pure/clean water to the environment after removing any toxic & non-toxic chemicals or materials.

 How does ETP work

 

The conceptual method of treatment consists of the exclusion of the suspended particles, handling of sludge for the disposal, and dissolved organic substances.

These are some of the important processes involved in ETP

EQUALISATION

The main purpose of equalization tank is to balance a raw effluent from the different processing units. All the wastewater gets simply collected into the mixed effluent tank & then after pumped into the aeration tank, that functions just like equalisation tank. A floating aerator is mostly used to homogenise an effluent before it gets pumped into the neutralization tank for wastewater treatment.

pH CONTROL

Well, a pH value of an effluent should always in between the 5.5 & 9.0.According to Bureau of Indian Standards (BIS).The pH neutralization is generally used for modifying the waste water pH.

COAGULATION

It’s one of the techniques which involves the addition of liquid aluminium sulphate to untreated water. It causes the tiny dust particles so that it sticks together just after mixing. After that, this collection of the particles combines together to generate heavier or larger particles that can be easily removed by the settling or filtration process.

SEDIMENTATION

Water flows down slowly within this process, so that the heavy particles settle down at the bottom. The term “Sludge” is basically used for the particles gathering to the bottom of the container.

FILTRATION

In the process of filtration, the water gets passes through the filter to remove the particulates. These filters are usually made of gravel and sand layers. The back washing is often needed to clean those filters regularly.

DISINFECTION

Before entering into the distribution system, the water gets disinfected. To tackle this situation, you can use the Chlorine in order to decontaminate & disinfect the water.

SLUDGE DRYING

In this process, the sedimentation uses to collect the solids settle them down, and then after it transported them to the drying beds.