Emissions Monitoring through Long-term Sampling Bengt Löfstedt CEM 2023-08-04 View Count 1078 Monitoring of flue gas emissions is often a matter of continuous measurements. However, there is also periodic monitoring which can be divided into sampling during a short period of time, and long-term sampling which may approach continuous monitoring. Read More »
Continuous Emissions Monitoring – What, Why, and How? Bengt Löfstedt CEM 2023-05-05 View Count 600 Combustion-based heat and power production has historically been an environmental culprit. However, increased awareness and legislative requirements have improved the situation notably over the past decades. But which rules apply, which emissions-to-air limits are there, and how are the emissions determined? Read More »
Instrument Interfaces Bengt Löfstedt AQM, CEM, General 2023-04-06 View Count 658 A lot of efforts are usually spent on gas concentration measurements and making sure that the measurements are correct. However, all that is of little value if the resulting data is not available. Here is where the instrument interfaces come in play. Read More »
Regulating Mercury Emissions Bengt Löfstedt CEM 2023-03-07 View Count 898 Have you heard of new and strict regulations on mercury emissions within the European Union? If you are responsible for the operations at a waste incineration facility, you probably have. But what’s the issue with mercury, and what do the EU regulations say? Read More »
Multiplexed Monitoring – To be Doubt or Not? Bengt Löfstedt CEM 2019-02-28 View Count 6847 So called multiplexing allows design of cost-effective monitoring systems. But there’s multiplexing, and there’s multiplexing. Let’s have a look at the principles and explain why optical multiplexing is straight-forward while gas multiplexing has its issues. Read More »
Gas Concentration Monitoring in Sulfuric Acid Production Bengt Löfstedt CEM 2019-01-02 View Count 5246 It is important to monitor concentrations of sulfur dioxide and other gaseous substances in the production of sulfuric acid. What monitoring needs can there be, and how can these needs be met in a convenient way? Read More »
Pollutant Reduction Control and Continuous Emissions Monitoring at Waste-to-Energy Plants Bengt Löfstedt CEM 2018-12-04 View Count 4202 Waste incineration might sound negative, but properly managed, it can be an efficient and environmentally sound way to make the best out of waste that cannot easily be recycled. But how can the emissions of air pollutants best be reduced and monitored? Read More »
Continuous Emissions Monitoring of Total Mercury Bengt Löfstedt CEM 2018-11-15 View Count 6849 Mercury emissions from waste incinerators and other industrial facilities are often strictly regulated. This calls for monitoring of mercury concentrations. That is not always an easy task, but there is a method available giving the true total mercury content in the flue gas. Let us take a closer look at the topic. Read More »
Real Driving Emissions: Meaning and Monitoring Bengt Löfstedt Vehicle Emissions 2018-11-01 View Count 4199 Today, pollutant emissions from road traffic is a hot topic, both for legislators, the vehicle industry, and a concerned public. What steps have been taken to reduce the emissions, and how is compliance with the latest standards monitored? Read More »
Monitoring of Hydrogen Sulfide in Industrial Processes Bengt Löfstedt CEM 2018-10-15 View Count 9045 What is hydrogen sulfide? And why is it important to monitor in industrial processes? Read More »