Problem 7 - A Complete Resource Book in Chemistry for JEE Main

Question

Cyclon collector is used for minimizing (a) water pollution (b) sound pollution (c) soil pollution (d) air pollution

Step-by-Step Solution

Answer

The cyclonic collector is used for minimizing air pollution.

Step 1: Understanding the Problem

We need to determine what type of pollution a cyclonic collector is used to minimize.

Step 2: Identifying the Role of a Cyclonic Collector

A cyclonic collector is a device used primarily in industrial settings to remove particulates from an air, gas, or liquid stream, without the use of filters, through vortex separation.

Step 3: Connecting Cyclonic Collector to Pollution Type

Given that a cyclonic collector is used to remove particulates from air, it is specifically used to minimize air pollution by capturing dust and other particulates.

Step 4: Selecting the Correct Option

Based on the connection made, the cyclonic collector is used for minimizing air pollution, which corresponds to option (d).

Key Concepts

Cyclonic Collectors

Cyclonic collectors are essential devices used in various industries to help manage and reduce pollution. They operate on the principle of vortex separation, a process that leverages the force of swirling airflow to separate and capture particulates from a stream. Key features of cyclonic collectors include:

• No filters: Unlike traditional filters which can clog and require replacement, cyclonic collectors use centrifugal force to separate particles.
• Durability: They are robust and can handle heavy loads of particulates, making them ideal for industrial applications.
• Low maintenance: With fewer moving parts, they require less upkeep compared to other collection systems.

These devices are particularly effective at removing dust and larger particulates from air streams, which makes them indispensable in sectors like manufacturing, agriculture, and mining. Their ability to operate without filters not only reduces maintenance costs but also enhances their efficiency and lifespan.

Air Pollution

Air pollution refers to the presence of harmful or excessive quantities of substances in the air. These substances can include gases like carbon monoxide, sulfur dioxide, particulate matter (PM), and biological molecules that pose a risk to human health and the environment. Sources of air pollution include:

• Industrial emissions: Factories often release pollutants such as smoke, dust, and volatile organic compounds (VOCs).
• Transportation: Vehicles emit exhaust gases that contribute significantly to urban air pollution.
• Natural events: Wildfires, dust storms, and volcanic eruptions can also cause air pollution.

Air pollution can lead to serious health problems such as respiratory diseases, cardiovascular issues, and can even affect cognitive functions. Moreover, it poses a threat to wildlife and can alter ecosystems by disrupting the food chain and harming plant life. Consequently, effective pollution control methods are crucial for preserving air quality and protecting human health.

Particulate Removal

Particulate removal is a critical aspect of reducing air pollution and involves capturing and removing small particles from the air. These particles, referred to as particulate matter (PM), can vary in size and composition and are typically classified based on their diameter:

• PM10: Particles with a diameter of 10 micrometers or less.
• PM2.5: Finer particles with a diameter of 2.5 micrometers or less.

Techniques for particulate removal include:

• Cyclonic collectors: Effective for removing larger dust particles from industrial air streams.
• Electrostatic precipitators: Utilize electrical charges to attract and capture particulates.
• Filtration systems: Physical filters that trap airborne particles, often found in HVAC systems.

Ensuring efficient particulate removal helps to improve air quality, protect public health, and reduce environmental impacts. Industrial plants, in particular, employ various methods, including cyclonic collectors, to manage emissions and comply with environmental regulations.