tag:blogger.com,1999:blog-377485302024-03-13T00:49:38.722-07:00Air Pollution Control and Air Pollution Control TechniquesBlog about air pollution and air pollution control techniques. It also supply information for human and semi-academic surveys.Unknownnoreply@blogger.comBlogger20125tag:blogger.com,1999:blog-37748530.post-22998185798218951682015-09-26T07:29:00.001-07:002015-09-26T07:29:57.787-07:00Air Pollution Tag on Pinterest
Pinterest is a big social media platform and we want to look at air pollution tag on pinterest.
Here you can reach air pollution documents from Pinterest;
https://www.pinterest.com/search/pins/?q=air%20pollution&term_meta%5B%5D=air%7Ctyped&term_meta%5B%5D=pollution%7Ctyped
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-76991035926927530702013-11-05T06:32:00.002-08:002013-11-05T06:32:22.869-08:00SO2 ANALYSIS AND MEASUREMENT TECHNIQUES
There are many SO2 analysis and
measurement techniques in this research I will mention about four main analysis
and measurement techniques.
1 <!--[endif]-->The Flame Photometric Detector (FPD)
An integrated gas sample is extracted from the
stack. The SO2 is removed selectively from the sample using a citrate buffer
solution. The TRS compounds are then thermally oxidized to SO2 and Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-37748530.post-61914446860200651982013-10-07T12:14:00.001-07:002013-10-07T12:14:26.306-07:00BAG FILTERSBag filters can be used for collection of particles if the gas temperature is lower than 200 C.
Sometimes bag filters are more economical than the ESP.
Venturi scrubbers are used for particulate removal as well as the gas cleanup. If gases
contain some acidic gases like HCl or HF or even SO2, these can be removed by the basic liquid or water used in the scrubber together with the Particulates.
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-48035719238106177262013-10-07T12:14:00.000-07:002013-10-07T12:14:14.834-07:00ELECTROSTATIC PRECIPITATOR• ESP is used for collecting particles < 5 micron in diameter
• Electrostatic force is used to collect the particles instead of the gravitational force
• The basic idea is to give the particles a (-) charge around the CORONA and collect them on (+) ly charged plates.Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-2125234493692076502013-10-07T12:13:00.004-07:002013-10-07T12:13:58.940-07:00Air Pollution During PregnancyAir pollution is a well-known problem that give harm to humankind. Columbia University's Mailman School of Public Health conducted a survey on causes of air pollution during pregrnancy.
Maternal psychological distress combined with exposure to air pollution during pregnancy have an adverse impact on the child's behavioral development, according to researchers at the Columbia Center for Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-86170555528533314882011-05-21T09:53:00.000-07:002013-11-05T06:28:53.313-08:00Particulate ControlThere are 3 main system to particulate control. These are cyclones, ESP (Electrostatik Precipitator) and bag filters.
The oldest system is cyclones, it is only used particles bigger than 50 microns. For smaller particles ESP or bag filters must be used.Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-72740293006318706932010-03-07T10:38:00.000-08:002010-03-07T10:47:03.207-08:00Air Pollution Photos50 years after the industrial revolution people started to get sick from air pollution. Today millions of the factories, automobiles and vehicles continuosly release hazardous gases to athmosphere.In this post we air pollution control blog want to display some photos of air pollution.Unknownnoreply@blogger.com4tag:blogger.com,1999:blog-37748530.post-54886695124834121522009-05-25T09:51:00.000-07:002013-11-05T06:27:47.569-08:00Ultimate Fate of PollutantsIf possible, we prevent the formation of pollutants, if we cannot, we capture them and put them to some good use.
If the pollutants will burn, we often destroy them by burning. In designing any air pollution control system, one should plan for the ultimate disposal of any wastes produced.Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-18781030678876414892008-05-25T09:49:00.000-07:002008-05-25T09:51:26.561-07:00Air Pollution Measurements• Immission measurements (Ambient Air Monitoring)– Concentration of the pollutants in the air the public breaths• Emission Measurements (Stack Gas Monitoring)– concentrations and/or emission rates from air pollution sourcesGeneral Ideas in Air Pollution Control• Improve Dispersion– Tall stacks– Intermittent control schemes– Relocate the plantUnknownnoreply@blogger.com1tag:blogger.com,1999:blog-37748530.post-38903982925704797612008-02-28T14:42:00.000-08:002008-02-28T14:51:47.037-08:00Particulate Matter PM Control Technologies - Summary1- CyclonesA cyclon can collect about 25 micron particles by using centrifugal force.It has advantages for instance, it is easy to control and cheap.2- Electro Static PrecipitationElectro Static Precipitation is used for to collect very fine particles. It has 99% efficiency.3- Bag FiltersIt is also very efficient method of PM Control.4- Co-Flow Venturi ScrubbersVenturi Sucrubbers have Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-82768944102029476862007-09-05T05:01:00.000-07:002007-09-05T05:22:24.299-07:00Thermal Oxidation for VOC ControlVolatile organic compounds generally are fuels that are easily combustible.Through combustion, which is synomonous with thermal oxidation and incineration , the organic compounds are oxidised to CO2 and water, while trace elements such as sulfur and chlorine are oxidised to species such as SO2 and HCL. Three combustion processes that control vapor emisions by destroying collected vapors to Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-37748530.post-19836774699808117732007-08-04T13:55:00.000-07:002007-08-04T15:02:13.152-07:00Nitrogen DioxideMeasurement of Nitrogen DioxideFor measuring nitrogen dioxide concentration in ambient air the chemiluminesence method is used primarly.Nitrongen dioxide concentrationas are determined indirectly from the difference between the NO and NOX concentrations in the atmosphere.These concentrations are determined by measuring tje light emitted from the chemiluminesece reaction of NO with O3 and the Unknownnoreply@blogger.com2tag:blogger.com,1999:blog-37748530.post-1875661325413313642007-08-04T13:27:00.000-07:002007-08-04T13:46:52.372-07:00Methods for measuring OzoneThe principal method used for measuring ozone is based on chemiluminescence.When ozone and ethylen react chemically,products are formed which are in exited electronic state.These products fluoresence,relasing light.The principal components are a cocstant source of ethylen,an inlet sample line for ambient air,a reaction chamber, a photomultuplier tube , and signal processesing circuitry.The rate Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-27655174149556759572007-08-04T08:43:00.000-07:002008-12-09T23:54:38.888-08:00Carbon Monoxide Measurement TechniqueThe primary method used for measuring carbon monoxide in US is based on nondispersive infrared photometry (NDIR).The analyser has a hot filament sorce of infrared radiation, a chopper , a sample cell, reference cell and a detector.The reference cell is filled with a non- infrared- absorbing gas,and the sample cellis continuously flushed with ambient air containnig unknown amount of CO.The Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-9902763309591157702007-08-04T04:15:00.001-07:002007-08-04T08:42:32.732-07:00Analysis and Measurement of Gaseous PollutantsThe two major goals for air pollutants are identification and quantification of a sample of ambient air.Hundreds of chemicals are present in the urban atmospheres.The gaseous air pollutantsmost commonly monitored are CO,OZONE,NO2,SO2 and nonvolatile organic ompounds(NMVOCs).Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-14534003507640664692007-08-04T03:49:00.000-07:002007-08-04T04:11:05.653-07:00Monitoring SystemsAmbient air quality data may be obtained through the use of mobile or fixed sampling networks and the use of integrated samplers or continuous monitors.Decisions regarding these monitoring techniques constitude the first important steps in design a monitoring network. Fixed VS Mobile SamplingIn fixed sampling systems , staions are permanent or at least long term instalations.In a mobile Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-45871302041013855362007-08-03T17:05:00.001-07:002007-08-04T03:47:14.001-07:00Ambient Air Quality Sampling ProgramAir pollution monitoring is conducted to determine either emission concentration or ambient air quality.The range of emission concentrations,temperature and pressures encountered is sometimes different than found in tha ambient air sampling situations.For that reason sampling and analysis technuques and equipment are different for each case.OBJECTİVES OF SAMPLİNG PROGRAMThe object would be to Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-91763633751276297802007-08-03T16:37:00.000-07:002007-08-03T17:03:10.244-07:00Best Available Control Technology of Air PollutionThe Federal New Source Review program requires that Best Avaible Control Technology(BACT) be appiled to major new sources and mjor modifications in attainment areas.Many local agencies also require that BACT be applied to smaller new sources of air pollution.BACT is a technology-based standard that can be met by available technology.Typically it is specified in an air permit as a maximum emissionUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-79115662065081590332007-08-03T08:54:00.000-07:002007-08-03T09:02:56.129-07:00Effects of Air Pollution on Human HealthIn Bhopal, India, in December 1984, a release of methly isocyanate from a pessticide plant killed about 2500 people. Similar leakages of hydrogen sulfide from natural gas processing plants have killed houndreds of people. These tragic events attract wide attention.Their effects dont result from a single exposure these gases but from repeated exposure to low concentration for long periods.If we Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-37748530.post-1164191960457417352006-11-22T02:38:00.000-08:002006-11-22T02:39:20.476-08:00Air Pollution Control TechniquesThis blog aims to inform the people about air pollution control techniques.Unknownnoreply@blogger.com0