Wastewater Sulfate - Do You Really Need to Remove it in Wastewater Treatment?
Wastewater sulfate reacts with other chemical and metallic effluents in wastewater forming highly soluble compounds that may prove difficult to remove later in the treatment process.
Sulfide in wastewater causes problems of corrosion and odor that also affects treatment.
In this article, I discuss some reactions that take place in the wastewater and which are important for wastewater treatment professionals to consider: Sulfide In Wastewater Sulfide can be formed in wastewater when wastewater sulfate reacts with other industrial and domestic effluents containing chemicals and metals.
During laboratory tests, Iodine is used along with thio for the titration reactions.
Here's the chemical reaction.
I2 + S2H4 -> 2HI + S In the above mentioned reaction the Hydrogen Sulfide reacts with Iodine (I2) to produce Hydrogen Iodide (2HI) and Sulfur.
Iodine can be found in significant quantities in wastewater.
Hence there is a possibility of it reacting with Hydrogen Sulfide (S2H4) to form Sulfur with Hydrogen Iodide as the by product.
Wastewater collection systems are the places that are most affected by Hydrogen Sulfide.
Not only does it create septic conditions in the collection tank, it gives off foul odor and it has a corrosive affect on the machinery at the plant.
This has to be filtered at the earliest possible step.
Sulfate In Wastewater When testing the wastewater sulfate in the laboratory, a medium containing Acetic Acid is used to precipitate the sulfate ions.
This medium also contains Barium Chloride (BaCl2) solution.
During the precipitation process, the sulfate ions react with Acetic Acid and Barium Chloride to form Barium Sulfate.
This form of sulfate is poorly soluble in water but due to the contamination in wastewater it can hardly be noticed in its original form.
Sulfate in wastewater readily gets converted to sulfide due to the action of chemicals in the wastewater.
Both these mineral forms of sulfur namely sulfate and sulfide disturb the wastewater treatment process.
It is therefore necessary to understand how these forms react and filter them at the earliest.
Sulfide in wastewater causes problems of corrosion and odor that also affects treatment.
In this article, I discuss some reactions that take place in the wastewater and which are important for wastewater treatment professionals to consider: Sulfide In Wastewater Sulfide can be formed in wastewater when wastewater sulfate reacts with other industrial and domestic effluents containing chemicals and metals.
During laboratory tests, Iodine is used along with thio for the titration reactions.
Here's the chemical reaction.
I2 + S2H4 -> 2HI + S In the above mentioned reaction the Hydrogen Sulfide reacts with Iodine (I2) to produce Hydrogen Iodide (2HI) and Sulfur.
Iodine can be found in significant quantities in wastewater.
Hence there is a possibility of it reacting with Hydrogen Sulfide (S2H4) to form Sulfur with Hydrogen Iodide as the by product.
Wastewater collection systems are the places that are most affected by Hydrogen Sulfide.
Not only does it create septic conditions in the collection tank, it gives off foul odor and it has a corrosive affect on the machinery at the plant.
This has to be filtered at the earliest possible step.
Sulfate In Wastewater When testing the wastewater sulfate in the laboratory, a medium containing Acetic Acid is used to precipitate the sulfate ions.
This medium also contains Barium Chloride (BaCl2) solution.
During the precipitation process, the sulfate ions react with Acetic Acid and Barium Chloride to form Barium Sulfate.
This form of sulfate is poorly soluble in water but due to the contamination in wastewater it can hardly be noticed in its original form.
Sulfate in wastewater readily gets converted to sulfide due to the action of chemicals in the wastewater.
Both these mineral forms of sulfur namely sulfate and sulfide disturb the wastewater treatment process.
It is therefore necessary to understand how these forms react and filter them at the earliest.
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