Air Pollution Control

Man’s sole existence on this planet hinges on the presence of the air that we breathe, for without this source of oxygen, there can be no life. However, with man’s activities, all kinds of organic and inorganic substances are continuously released into this same body of air that we depend on.

Air can be regarded as polluted in many different ways. Polluted air can be toxic, corrosive, flammable, odourous, bio-contaminated and even wet or dusty to pose huge health problems and hazards to man, material, machine and the environment. To safeguard ourselves from harm, every country has its own set of regulations to control and mitigate various identified air pollutants generated by man.

Thus, it is to our utmost interest that we protect and preserve the quality of air that we breathe and so we must adopt the best practices and technology available to abate these air pollutants and contaminants.

According to the Law of Conservation of Mass, the mechanism of Air Pollution Control is very similar to this principle because as mass cannot be destroyed but merely converted into another form, air pollutants are not really “destroyed” but rather they are “converted” or “captured” or “neutralised” into other form of wastes in either or both the solid, liquid or gaseous states. Usually, such conversions involve chemical changes where heat, electrical or mechanical energy etc are also introduced to fuel the change. As a result, byproduct wastes will be created in the process of removing air pollution but such wastes are usually either harmless or its disposal can be properly contained and managed separately.

We supply, install, operate and maintain various industrial abatement systems specially designed for the removal of target contaminants. Chemical gases such as acidic, caustic, ammonia and solvent gases can be abated via the following abatement systems.

1. PFC GAS ABATEMENT
2. VOC GAS ABATEMENT
3. ATOMIC MOLECULAR CONTAMINATION (AMC) FILTERS
4. BIO-GAS & DIGESTER GAS ABATEMENT & RECOVERY
5. WET & DRY ABATEMENT SYSTEMS

 Greenhouse Gas Abatement (PFC Gas Abatement)

PFC is one of the 6 Global Warming Gases (GWG) identified by the UNFCCC that contributes to the total carbon emission into the atmosphere

Steam Plasma Scrubber – >99% DRE on PFC gases (>95% for CF₄)

– Etch, Thin Film (CVD/PVD), Diffusion Modules

– Gas flow of 300 to 600 slm

– SEMI-S2 Compliance

VOC (Volative Organic Compound) Gas Abatement Systems

Almost all front end semiconductor manufacturing fabs use large quantities of solvents like the Alcohols (e.g. IPA), Ketones (e.g. acetones, MBK), Esthers (e.g. ethyl acetates), Ethers (e.g. PGMEA), Hydrocarbons (e.g. Toulene), Aldehydes etc in their manufacturing processes and these are being exhausted out directly into the atmosphere.

Most of these solvents are extremely pungent and causes immense odour pollution in the environment.  Some of these solvents/VOCs are known to be carcinogenic to humans and poses health hazards to people who has long term exposure to such pollutants (e.g. higher potential of cummulative exposure for residents living near these sources of VOC emission).

Our central VOC abatement system (zeolite rotor concentrator and thermal combustion method) is specially designed to effectively remove >95% of total VOC before it is discharged to the external atmosphere by these factories.

Atomic Molecular Contamination (Chemical) Filters: Cleanroom MAUs, FFUs, Mini-Environments

Target Contaminants:

1 – Molecular Acid (MA): SO_x, HCl, Cl₂, H₂S, NO_x etc

2 – Molecular Bases (MB): NH₃, Amines, NMP etc

3 – Ozone: O₃

4 – Aromatic Hydrocarbon: Toulene, Xylene etc

5 – Condensable Organics: MW.120, BP 150^oC Organic Material, DBP, DOP

6 – Molecular Dopant: Boron, Phosphate, Arsenic & Sb as compounds etc 

Filter Lifetime – 16-24 Months

Performance Tested and Verified by ITRI (Industrial Technology Research Institute, Taiwan)

Bio-Gas/Digester-Gas Contaminant Removal

• Pioneer Air System’s TCR (Total Contamination Removal): A One-for-All system built on a SKID that is specially designed for the removal of Siloxanes and other air contaminants to purify biogas and produce extreme DRY and CLEAN gas

Customized Gas Abatement Systems (Bio-Odour, Dust, Oil Fumes, Bacteria/Viruses, Smoke etc) 

– Solar & UV – Photocatalytic Oxidation

– Chemical Absorbent & Dosing Treatment

– Ozonation

– Enzymes and Colloidal Treatment

Others

Please contact us at sales@a-guard.com.sg so that we can assess your air pollution problem and make recommendations accordingly.