Are you keen on finding out the reasons as to why hydrogen sulfide removal is important and not a choice? If yes, please go through this article. We will try and find out as to how hydrogen sulfide can be removed from domestic water supplies. We need to understand that all water sources do have hydrogen sulfide deposits. However, the problem occurs when there is an excess deposit of hydrogen sulfide. Anything over 0.5 PPM is considered excess. It should be removed as soon as possible. Though it may not be exactly unsafe and dangerous for the health of the persons concerned, it could lead to a strong and pungent odor. It also could lead to deterioration in the taste of drinking water and also water that is used for cooking. If the concentration of hydrogen sulfide is more than 250 PPM then you could have many health issues. It may lead to the water becoming bitter and could also damage the digestive system and could lead to diarrhea, vomiting and other such problems. It also could lead to serious damage to the well-casing and also the plumbing network. If you are using brass, copper and even silverware items, they have a chance of getting damaged. It also could have other unwanted side effects in the body. Hence, it is quite common to find out ways and means by which the excess deposits and concentrations are removed without any delay.
It is possible to remove hydrogen sulfide from raw biogas. This is done with the help of absorption technologies. The use of organic solvents or water-based solvents is common for removing excess deposits of hydrogen sulfide. One of the most proven and time-tested methods of removal is with the help of sodium hydroxide scrubbing. In many situations, chemical absorptions can also be used. In such cases, a liquid medium is used and it contains certain other compounds and chemicals such as Fe (OH3) or NaOH. When this process is done, the hydrogen sulfide goes through some reaction and it turns into sodium hydrogen sulfide. You also can use other organic solvents provided they have greater solubility of hydrogen sulfide when compared to water. You can also use microorganisms for regenerating the liquid provided they can oxidize sodium sulfates biologically.
How Is It Done
This is done by air stripping of the liquid and this can lead to elementary sulfur scavenger. There is one more alternative that could be used. This process is done by cooling down the biogas to enable the liquid carbon dioxide to form where hydrogen sulfide and other impurities are also dissolved. Activated carbon can also be used for removed hydrogen sulfide. The make this process even more efficient, you can add H2SO4 or KI with activated carbon. This will not only remove hydrogen sulfide but the level of removal will also increase quite significantly.
The Final Word
While there is no denying the fact that hydrogen sulfide removal is a must when the concentration is above the threshold limits, it should not be a tough job, provided you know how to go about it.