Chemical

Ways for Hydrogen Sulfide Removal from Biogas

Sharon Reed

Hydrogen sulfide is a toxin that can impact the efficiency of biogas. You will have to follow some safe ways to remove this poisonous and corrosive toxin. Whenever you realize the presence of more hydrogen sulfide concentration, you will have to address it immediately. Otherwise, it can cause irreparable damage to the piping and equipment, and the performance will not be up to expectations. Hence, you will have to consider some safe ways for hydrogen sulfide removal from biogas.

How to Know the Presence of More Hydrogen Sulfide in Biogas

The internal engines will perform the best with less than 100 ppm hydrogen sulfide. But the boilers can perform well in 1000 ppm concentration. Whenever there is any disparity in the concentration level, you will have to consider removing it. You will have many safe ways to remove hydrogen sulfide from biogas, and we will cover the most effective ways in the following. You can consider either iron chloride dosing or biological desulphurization.

Iron Chloride Dosing

You will find this method straightforward to follow. Start by feeding the chloride to the digester slurry directly. Once you feed the chloride, it will react with the hydrogen sulfide and form iron particles. The benefit of this method is that it is effective for high hydrogen sulfide levels. But you cannot consider it when you want a low level and stable concentration. Hence, you will have to know the purpose before using this method. When it is high, this process can help with partial removal. But there will be no corrosion, but you will have to combine it with other removal processes to get the desired stability and reduce the concentration. Hydrogen sulfide gas removal.

Biological Desulphurization

You will find this process different from the chloride dosing method. It will use microorganisms for hydrogen sulfide removal from biogas. For this method, you will have to use stoichiometric quantities of oxygen to achieve microbiological oxidation, and the oxidation will remove hydrogen sulfide. Know the concentration, add oxygen to the biogas, but make sure that it is two to six percent of the air.

Biological desulphurization is easy to follow and will not cost you more. You can add oxygen to the digester or storage. Once you add the oxygen, it will grow on the surface of the digester and generate required nutrients and micro-aerophilic at the same time. The process will form yellow clusters and impact the sulfide level significantly. The oxygen will reduce the concentration level of the sulfide up to 95%. Also, it can be below 50 ppm, and the result will depend on the temperature and reaction time. But make sure that you are aware of the process before going ahead.

While adding oxygen, you will have to focus on the proper amount. Overdosing can be dangerous. You might know that biogas is explosive within 6 and 12% range of air. If you add more quantity, it might lead to pump failure. While using a steel digester, you might experience corrosion, and you can use rust protection in your digester to avoid such conditions.

Both these methods are helpful, and you can choose depending on availability.

Contact Us:

Chemical Products Industries, Inc.

Address: 7649 SW 34th St, Oklahoma City, OK
Phone: (800) 624-4356

 

Understanding More About Sulfur Oxide Removal

Sharon Reed

Sulfur dioxide is reactive and colorless air pollutant and it has a strong odor. It certainly is a dangerous substance and could cause big damage to human health, plant life, and animal health. Hence, it is important to find out ways and means through it is possible to remove sulfur oxide from various natural elements that are used by human beings. Before gathering a reasonable understanding of the ways and means of sulfur oxide removal, we need to have some idea about the sources of sulfur oxide. The main sources are from fossil fuel combustion and also because of natural volcanic activity. A typical example is Volcanoes National Park in Hawaii where the concentration of sulfur dioxide is very high when compared to many other national parks. Hence, identifying the sources and reducing the production of sulfur oxide is perhaps the best and organic way of keeping the environment free from this substance. However, this might not be always possible and under such circumstances, the next best approach is to find out ways and means by which it can be removed from as many sources as possible.

How Can It Impact Health?

Sulfur oxide is known to cause irritation to the mucous membranes of the throat, eyes, nose, and lungs. It also irritates the skin and can lead to irritation and inflammation of the respiratory system. This can increase during physical activity. Common symptoms are cough, difficulty, and pain while breathing, throat irritation and infection, and various other bronchial problems. A high concentration of this compound can impact and even damage lung function. It could also lead to worsening of asthma attacks and also could lead to heart disease and cardiovascular problems. People with asthma and other lung diseases and those suffering from chronic bronchitis are at risk when it comes to sulfur oxide contamination.

How To Avoid Exposure That Is Unhealthy?

There are some simple steps that could help avoid exposure to this compound. Stay away from potential sources of pollutants. Further, if you are planning some strenuous activities, it would be better to put it off if the place or the surrounding you are in has increased pollution of sulfur oxide.

Some Simple Ways Of Removing Sulfur Oxide

Wet scrubbing, spray dry scrubbing and wet sulfuric process are some of the most common ways and methods that can be used for so2 removal. Further, power stations are one of the most common sources of sulfur oxide. Waste gases are one of the biggest sources of sulfur oxide generation and therefore efficient and clean ways of handling waste gas could help a lot in removing this substance from the gaseous substances. As mentioned above treating waste gas using scrubbing and other processes is considered to be foolproof and time-tested ways.

Finally, there is a need to identify and isolate sulfur dioxide and this can be done through its chemical and physical properties. The risk is that sulfur dioxide does not have any physical form and it can be best identified through a chemical process. Simple tests using litmus papers can be a great way of finding out the pollution levels of sulfur dioxide.

 

Contact US:

Chemical Products Industries, Inc.
Address: 7649 SW 34th St, Oklahoma City, OK
Phone: (800) 624-4356