What is ETP for Automobile industry?
As we all know, tremendous advances in science and technology have positioned the vehicle sector as a rapidly growing business. Over time, an instantaneous development in the automobile/automotive business results in increased productivity, which leads to increased wastewater emissions into the natural environment.
Yes, the vehicle sector has become one of the biggest sources of dumping toxic waste water into the environment, posing a serious threat to the ecosystem.
1. What contaminants can be found in Automotive/Automotive Industry Wastewater?
Simply put, the automotive/automobile sector consumes a lot of water during various production processes and stages where automobiles are treated, washed, rinsed, and painted, resulting in a lot of effluent.
The following contaminants/pollutants are the most typically observed in effluents:
1. Metals, oils, grease, dyestuff, detergents, chromium and phosphates, paint residuals, hydrofluoric acid and ammonium bi-fluoride products, and other total suspended solids
2. Pollutants, both organic and inorganic
3. BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand)
2. What is the significance of an Effluent Treatment Plant in automobile industry?
ETPs, or Effluent Treatment Plants, treat waste water generated during various phases of the car production process. They purify the water that flows down drains before returning it to the environment. ETP is an environmentally beneficial method of treating automobile industry effluents so that they can be recycled or reused for other purposes.
The effluents produced by the vehicle sector (such as automobile industries, showrooms, and service centres) are particularly detrimental to human and animal health, posing a significant environmental problem. As a result, installing an effluent treatment facility for the vehicle sector is a must.
3. ETP or Effluent Treatment Plant for Automobile Industry Process Overview:
The Effluent Treatment Plant plays an important function in removing/displacing contaminated and polluted water to a standard or acceptable level before returning it to natural water sources.
We will learn about the primary procedures involved in ETP for the automobile/automotive sectors in this section.
During the treatment process, ETP for the vehicle industry follows particular processes, which include:
1. Pre-treatment:
This entails using physical methods like screening or a grit chamber to remove floatable materials from raw effluent before they damage the plant's pumps andother equipment. It also has an oil and grease trap that removes floatable oil and grease from the effluent from automobiles.
2. Primary Treatment:
Now that the wastewater has been pre-treated, it is sent to the primary treatment tank, which includes a chemical process (which involves coagulation, flocculation, and neutralization). Heavy solids sink to the bottom of the container, while oil, grease, and other lighter solids float to the surface and are skimmed off. The settled solids are referred to as primary sludge, and the liquid wastewater is sent to the next phase of treatment.
3. Secondary Treatment:
This treatment uses a biological mechanism to remove approximately 90% of the BOD and COD. Biological processes can be either aerobic or anaerobic, depending on the effluent quality. However, the majority of ETPs use the aerated sludge process (aerobic process) to effectively treat wastewater. It eliminates biological stuff that is both dissolved and suspended.
4. Tertiary Treatment:
In ETPs, this treatment is quite significant. Because chlorine, ozone, and UV radiation are used to disinfect the processed wastewater here. It also eliminates any residual suspended particles left over from prior treatment settings. Finally, the treated effluent from vehicle plants is of acceptable quality and can be discharged.
We at Netsol Water Solutions can design, manufacture and install Effluent Treatment Plants for various industries including Automobile Sector with varying sizes and capacities.
Flowchart of the above discussion about the process involved is shown below:
