Hydrogen Fluoride HF Monitoring services: 

Hydrogen fluoride (HF) can be found in gaseous form or liquid state at ambient temperature. It is  combination of Hydrogen Atom & Fluorine Atom.

Apzem’s Air Quality monitoring

Apzem’s Air Quality monitoring is done by industrial experts with years of rich expertise in the domain of air quality monitoring & dust, fume control.

Inhalation & Ingestion Health Hazards

Hydrogen Cyanide HCN Monitoring 

Hydrogen Cyanide is a colorless gas ( At higher temperatures ). Hydrocyanic acid is a colorless or pale blue liquid, with bitter almond odor and bitter burning taste. Hydrogen cyanide is highly volatile and produces lethal concentrations at room temperature and the HCN vapor is flammable and potentially explosive. Its used as 96% aqueous solution and is soluble in water.

Hydrogen cyanide is a predominant industrial chemical and primarily used in the manufacturing of plastics, synthetic fibers like nylon, paints and other chemicals, ore-extraction, electroplating, dying, printing, photography, metal cleaning etc. HCN and other cyanide compounds are also being used as a fumigant to control pests.

Common Sources of hydrogen cyanide

Hydrogen cyanide is released from a several natural processes such as, by bacteria, fungi, volcanic activity etc. Other sources includes industrial processes, from combustion or from accidents involving HCN transport. Combustion processes produce hydrogen cyanide gas in the form of gas. Other sources of HCN emission includes building fires, cigarettes, vehicles exhausts and fires involving nitrogen-containing materials such as polyurethane foams.

Hydrogen Cyanide HCN Monitoring services: 

Apzem’s Air Quality monitoring is done by industrial experts with years of rich expertise in the domain of air quality monitoring & dust, fume control. HCN Gas Level monitoring is primarily done to detect and measure parts per billion levels of HCN

H2S Monitoring services: 

Apzem’s Air Quality monitoring is done by industrial experts with years of rich expertise in the domain of air quality monitoring & dust, fume control. H2S Gas Level monitoring is primarily done to detect and measure parts per billion levels of H2S

H2S Level Monitoring – Hydrogen sulfide gas level monitoring services in Chennai, India | Apzem, Into Air Pollution Control & Monitoring Services for over more than a decade ..

Odor Control System for Sewage Treatment Plant

STP ODOR CONTROL UNIT

STP Scrubber located near residential area creates issues if the STP produces unpleasant odors. The odor control unit is becoming primary design consideration for wastewater treatment facilities. Areas in which most Odour Control System for Sewage Treatment Plant, primary treatment facilities and solid handling facilities. Generally, odors are produced by biological reaction at anaerobic/septic conditions.

This condition occurs when oxygen transfer to the wastewater is limited. In the anaerobic state, the microbes present in the wastewater have no dissolved oxygen available for respiration. In the absence of dissolved oxygen (DO) and in the presence of soluble Biological Oxygen Demand (BOD), sulfate-reducing bacteria convert the sulfate ion to sulfide.

SO₄^2-  Organic matter H₂S + CO₂

Sulfur reducing bacteria, which uses sulfur as an energy source, are the primary producers of large quantities of H₂S. Sulfur reducing bacteria live in oxygen deficient environment such as deep wells, plumping systems, etc. Due to its low solubility in wastewater, it is released into the atmosphere, producing an offensive odor. Chemical compounds associated with odor are Inorganic compounds, Mercaptans and Organic compounds containing Nitrogen and Sulfur atoms. Among these, Ammonia and Hydrogen sulphide are the main Odor Control System for Sewage Treatment Plant causing compounds.

Threshold limit of odor causing agents