The sewage ground water is disposed by
**Core Concept**
The question is testing the knowledge of environmental health and sanitation practices. The correct answer involves the use of a specific method to treat and dispose of sewage groundwater, which is contaminated with human waste and other pollutants.
**Why the Correct Answer is Right**
The correct answer involves the use of a disinfection method to kill pathogens and microorganisms present in the sewage groundwater. This method is essential to prevent the spread of waterborne diseases. The activated sludge process is a type of biological treatment that uses microorganisms to break down organic matter in the wastewater. The treated effluent is then disinfected using ultraviolet (UV) light or chlorination to kill any remaining pathogens.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not specify a method for treating and disposing of sewage groundwater. It is too vague and does not address the need for disinfection.
* **Option B:** This option is incorrect because it does not mention the use of microorganisms to break down organic matter in the wastewater. While filtration is an important step in water treatment, it does not address the need for disinfection.
* **Option C:** This option is incorrect because it does not specify a method for treating and disposing of sewage groundwater. It is too vague and does not address the need for disinfection.
**Clinical Pearl / High-Yield Fact**
It is essential to note that proper treatment and disposal of sewage groundwater are critical to prevent the spread of waterborne diseases. The World Health Organization (WHO) recommends the use of disinfection methods such as UV light or chlorination to kill pathogens and microorganisms present in wastewater.
**Correct Answer: D. Activated Sludge Process with Disinfection**