When you think about a chemical storage tank system, you have to consider the factors that impact the tank’s service life. Not only do you have to make sure that the tank material and fitting materials are compatible to the chemical you are storing, it is also important to consider the functionality of the tank.
Whether you’re an engineer writing a spec for a chemical storage system, or an end user who is looking for the best way to store corrosive chemicals, there are multiple factors that go into creating a safe storage system. Cost might be the first consideration, but there is more to cost than the initial price of the tank, its fittings and accessories, delivery, and installation.
High-density polyethylene chemical storage tanks can be made of linear polyethylene, and they can be made of cross-linked polyethylene. They are both made with resins that are heated to create a cured plastic, yet the differences in their development create very different polyethylenes of structural strength.
If you’re storing an oxidizing chemical like sulfuric acid or sodium hypochlorite in a polyethylene tank, an antioxidant barrier will more than double the life of that tank.
Just as proper tank maintenance and frequent inspections help ensure that a tank lives out its projected useful life, it is equally important to install the tank properly. Here are some common questions we get regarding the installation process.
Tank blanketing is also referred to as tank padding, and it describes the process of applying an inert gas to the vapor space (or unused space) that exists above the chemical inside a storage tank. Tank blanketing is mainly used to add a layer of gas (usually nitrogen) to keep air or moisture from a chemical inside the tank.
Obviously, in a chemical storage and mixing scenario, moving the tank around like you might do with a cake mixer to get all the chemical that can’t be reached is not an option. That’s where baffles come in.
Sulfuric acid is one of the most widely used chemicals in the United States. More is produced every year than any other single chemical. It has a multitude of industry-specific uses like in the production of other chemicals, dyes and pigments, water treatment and fertilizers. Millions of tons of sulfuric acid are produced each year.
We have all heard the adage, “if a job is worth doing, it’s worth doing right”. Poly Processing believes this to be true 110% of the time when it comes to containment. Every single piece of a tank system needs to be completely secure to protect your workspace, your employees, the environment and the chemical being stored.
The term clean-in-place (CIP) refers to a process that allows the interior of the tank and lines going out of it to be cleaned without having to enter the tank. CIP provides efficient, thorough cleaning with less exposure to potentially harmful chemicals or contamination of food or beverage mixtures.
When storing any type of chemical, it is important to conduct routine inspections to make sure the tanks, fittings, venting, and accessories are in good working condition. It is possible to perform some of the tank inspection on your own, but periodically, the system should be checked by a Field Service Representative.
There are many things to know and consider that will help you extend the life of your tank to its fullest potential. It is important to know that from the production of the tank, through installation, it is expertly manufactured with all of the right gaskets and fittings. After tank installation, it is important to have it inspected regularly to look for problems that could cause tank failure.