Air pollution sampling and control

Slides:

Advertisements

Similar presentations

Lecture nu 11 Presented by: Dr. Zeinab Osman Saeed.

Advertisements

Chapter 10 – Fluids and Pressure. When you drink liquid through a straw, which of the items listed below is primarily responsible for this to work? 60.

(IAQ). Introduction  A collective group of fine solid particles, aerosols, mist, smoke, dust, fibers and fumes are called Respirable particles  Particles.

ERT 319 Industrial Waste Treatment Semester /2013 Huzairy Hassan School of Bioprocess Engineering UniMAP.

Electrostatic Precipitators: Clean Air Technology Group 5: Brian Cholvin Diane Lomeli Michael Obradovitch Magaly Vazquez.

اسکرابرهای تر اساس کار این روش شستشوی گاز به کمک یک حلال می باشد.

5-9-B Cyclone Separators Cyclone separators are gas cleaning devices that  employ a centrifugal force generated by a spinning gas stream  to separate.

Air Pollution Chapter 5.

Common air pollution Control equipment : Method of removal Particulate Matter 1. Gravitational Settling Chamber 2. Cyclone 3. Inertial Dust Separator.

1 Environment Engineering I Dr. Amal Hudhud Dr. Abdel Fattah Hasan An-Najah National University Civil Engineering Department Air Pollution Chapter Eleven-

Stationary Source Controls & Source Sampling Marti Blad Ph.D., P.E.

Environmental Engineering 343

ELECTROSTATIC SEPARATION By Caitlyn, Alish, Carly

Air pollution control methods. Introduction Air pollution control can be generally described as a “separation” technology. The pollutants, whether they.

LOCAL EXHAUST VENTILATION …study of the principles associated with proper application of local exhaust ventilation (LEV) for control of airborne contaminants.

Unwanted particles - agenda

How can static electricity prevent air pollution?

Miscellaneous Process By: Dr. Tahseen Ismail By: Dr. Tahseen Ismail.

The Greenhouse Effect CE 326 Principles of Environmental Engineering Prof. Tim Ellis January 25, 2010.

Air Pollution Control – Design Considerations: General Objectives: Background for equipment design To be conversant with equipment manufacturers Understand.

Particle Control Technologies

BYD.RAVIKUMAR.  AIR POLLUTION UNIT – I Air pollution: Air pollution is defined as “presence in the outdoor atmosphere of one are more contaminents such.

Air Emissions Treatment. Because air pollutants vary in size many orders of magnitude, many different types of treatment devices are required for emissions.

Particulates Air Pollution. Particulates –Particulates play important role in atmospheric chemistry. –Act as catalyst to produce ozone as secondary pollutant/

ELECTROSTATIC PRECIPITATOR (ESP)

 Products of incineration  sifting  fine material include ash, metal fragments, glass, unburnt organic substances etc..  residue  all solid material.

ZARS Project Terry Ring

Stationary Source Controls & Source Sampling Marti Blad, PhD, PE.

Particle Control Techniques David Leith Dept. of Environmental Sciences and Engineering University of North Carolina at Chapel Hill.

بنام خدا با سلام.

Particulate control techniques Gravity settling chamber Mechanical collectors Particulate wet scrubbers Electrostatic precipitators Fabric filters.

Charges at Work Section 10.3

Scrubbing Technology N. Maximova, Puu Wet scrubbers remove particles by capturing them in liquid droplets. Wet scrubbers remove pollutant gases.

Separators Types of Dust Separator Cyclone Separator working & types Critical Parameters Advantages Disadvantages Applications maintenance.

Separation Methods. Types of Solutions & Mixtures Solution: A homogeneous mixture of two or more compounds where a solute has dissolved in a solvent Solution:

Introduction on Electrostatic Precipitator .

CYCLONE SEPARATOR.

PNEUMATICS Chapter 5 Secondary Air Treatment

Pollution Control Measures

LECTURE #7b Particulate Scrubbers

Pollution Air Pollution.

Applications of Static Electricity

Wire Radius Collector Radius Wire Roughness Secondary Emission

Air pollution control:

Particulate (Fly Ash) Removal

“Air Pollution Prevention and control”

Hollywood Central Park

SEDIMENTATION 9/11/2018.

INTRODUCTION TO PRECIPITATORS

Acceleration due to Gravity

Air pollution control engineering

Environmental Topic #1 Primary Air Pollution.

Control of Air pollution

Air Pollution Control Devices

How do you reduce the amount of pollutants entering the atmosphere?

Dangers and Uses of Static Electricity

CE 326 Principles of Environmental Engineering

AIR POLLUTION CONTROL TECHNIQUES

Chapter 12. Air Pollution Control

Unit A: Energy and Matter Exchange in the Biosphere

Air Pollution Control: Stationary source

control of Primary Particulates

AIR Quality Control Treatment of Emissions

Electric Fields & Millikan’s Experiment

Robert A. Millikan.

Module 48 Pollution Control Measures

Chapter 6 Cyclones.

Static Electricity Static electricity is produced by a charge imbalance. An object either gains or loses electrons, but these charges cannot flow (as opposed.

UNIT III PARTICULATE SCRUBBES. PARTICULATE SCRUBBERS or WET COLLECTORS Scrubbers are air pollution control devices that use liquid(often water) to remove.

Objectives of Pollution control o Prevention of nuisance o Prevention of physical damage to property o Elimination of health hazards to plant personnel.

Presentation transcript:

Air pollution sampling and control K Balakrishna

High volume air sampler

Air sampling filters

Sampling train

Wind Rose Diagram

Air pollution control Settling chambers

Settling chambers use the force of gravity to remove solid particles Settling chambers use the force of gravity to remove solid particles. The gas stream enters a chamber where the velocity of the gas is reduced. Large particles drop out of the gas and are recollected in hoppers.

Cyclones

The general principle of inertia separation is that the particulate-laden gas is forced to change direction. As gas changes direction, the inertia of the particles causes them to continue in the original direction and be separated from the gas stream. The walls of the cyclone narrow toward the bottom of the unit, allowing the particles to be collected in a hopper. The cleaner air leaves the cyclone through the top of the chamber, flowing upward in a spiral vortex, formed within a downward moving spiral.

Scrubbers

Spray chamber

Baffle scrubber

Cyclone scrubber

Venturi scrubber

Venturi scrubber

Bag filter

Electrostatic precipitator 1. Smoke particles pick up a negative charge. 2. Smoke particles are attracted to the collecting plates. 3. Collecting plates are knocked to remove the smoke particles.

Pollution control by absorption

Pollution control by adsorption

Pollution control by condensation

Pollution control by incineration