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| sulfuric acid sludge |
- Reaction with metals & non-metals
- Strong oxidizing agent
- Reaction with salt
- Good dehydrating agent
This property & it’s the least price make it commonly used chemical in industries like
- Fertilizers
- Pharmaceuticals
- Automobile batteries
- Water treatment
- Sulfonation agents
- Cellulose fibers
- Steel manufacturing
- Coloring agents
- Amino acid intermediates
- Regeneration of ion exchange resins
In this industries, sulfuric acid is used from primary to intermediate to after treatment processes.
This processes in the industry generate wastewater containing sulfuric acid sludge.
Sulfuric also used for household purposes in
- Drain cleaners
- Car batteries
- Fertilizers
This stuffs sometimes creates problems for disposing of sulfuric acid
Click here to get how it could be a problem for disposing of sulfuric acid in your house.
Despite looking in every sector of industries, We will take a look at the sulfuric acid plant where it is produced & how can we dispose of it without any hazard.
In the sulfuric acid plant, acid spill or leakages are countable problems.
Because of its corrosive nature, leakages are common problems in the sulfuric acid plant.
During shut down of the sulfuric acid plant, cleaning of equipment generates wastewater containing acid mist.
Sulfuric acid & its mist both have toxic effects on the human body & environment.
Refer to its MSDS for more information under section 11 & 12.
Due to its toxic effects, It’s disposal should be fast as possible.
For disposal, it should be neutralized first.
For neutralization Water and calcium oxide (or hydroxide) can be used.
Sulfuric acid reacts with water is exothermic reaction & requires large quantities to neutralize compared to calcium oxide (or hydroxide).
The acid-base reaction can help us to solve the problem of acid neutralization.
Sulfuric acid forms a slightly soluble salt or precipitates with calcium oxide or hydroxide, the least expensive and most readily available base.
For household purposes we can use baking soda (NaHCO3) is also a base for acid neutralization.
Click here to get an idea of How much quantity of base needs to neutralize the acid.
After neutralization, it is safe for disposal.
After disposal to a safe location, there are also various techniques developed by company or scientist to recover the sulfuric acid from its sludge.
See patents published on a method for recovering sulfuric acid.
http://bit.ly/2IphiBV
http://bit.ly/2pavdDf
Recovery or recycling has a positive impact on the environment. we want to know how you think of recovery of sulfuric acid from its waste.
Type in the comments section below & you can also contribute to the blog.
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