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What Are the Best Chemical Storage Tank Materials for Wastewater Treatment?

It’s common for wastewater treatment plants to rely on cross-linked polyethylene chemical tanks, but many municipal water treatment plants are using inferior linear polyethylene or fiberglass tanks. While the short-term benefits are tempting, using linear polyethylene or fiberglass tanks can be like pouring money down the drain. Instead, Poly Processing’s cross-linked polyethylene (XLPE) tanks give you better performance, greater cost-effectiveness, longer useful life, and more innovative solutions.

Topics: Applications

Using A Nitrogen Blanket on a Poly Processing Tank

Water and oxygen can degrade some chemicals, so it may be necessary to create a protective barrier that keeps air and water moisture away from the chemical you’re storing. A nitrogen blanket can help increase the life of your chemicals. Tank blanketing, or tank padding, 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.

Topics: Applications

Wastewater: Sludge Removal & the Chemicals Used

Wastewater treatment involves several key components: physical treatment (i.e. screening and filtering processes), biological treatment (i.e. oxidation ponds and lagoons), and chemicals. The chemicals required for the water treatment process must be used more aggressively and in larger quantities for wastewater than municipal drinking water. As such, safe, proper storage for wastewater treatment chemicals is critical.

Topics: Applications

The Simplest, Safest Way to Measure Chemical Tank Levels

Reliably knowing the level of the liquid in your chemical storage tank is critical to maintaining your operations without interruption. Not only is the level an indicator for ordering more chemicals, but certain chemicals have to be stored at a specific level to maintain their properties or operational requirements. A level gauge monitors the liquid level of the chemical you’re storing in your polyethylene chemical tank. There are several types of level gauges, including clear tube level gauges and ultrasonic level gauges. While Poly Processing can provide a variety of level indicators, we almost always recommend our reverse float gauge.

Topics: Fittings and Accessories, FAQs

Pros + Cons of Using a Tank Within a Tank for Chemical Storage Containment

Secondary containment systems — a.k.a a tank within a tank — are recommended safeguards that can prevent costly damage to equipment and risk to employees in the event of a leak or failure of the primary storage vessel. There are several secondary containment options with varying costs available to tank owners. Let’s compare a traditional permanent concrete structure to a sophisticated, integrated double-wall tank containment system. The cost analysis may surprise you.

Topics: Value Added, FAQs

Can Crosslinked Polyethylene Tanks Be Grounded?

When storing flammable chemicals, it’s important to follow proper safety protocols to protect your equipment and your personnel. In light of these precautions, Poly Processing customers sometimes ask us about how to ground our chemical storage tanks. They want to ensure that no chemicals or vapors ignite if there’s a spark. In the case of Poly Processing tanks, no grounding is necessary — and in fact, they can’t be grounded. Let’s unpack why that’s the case.

Topics: Value Added

Scrubbing a PPC Tank: An Introduction to Fume Scrubbers

Chemicals stored in polyethylene tanks always require venting. Depending on the chemical you’re storing, the harmful fumes emitted from the storage tank can’t be directly released into the atmosphere. To reduce the harmful fumes before they evacuate the system and to control air pollution, fume scrubbers need to be installed.

Topics: Venting, Fittings and Accessories, Tank Design and Materials, Chemical Storage

Getting to Know Flocculants, like Ferric Chloride

Ferrics, alums and polymers are commonly used to treat water and wastewater. There are several reasons why these substances require specialized storage: Separation, settling and coagulation are major issues with these chemicals – and those conditions can be compounded by temperature variations. Settling and separation issues can lead to difficulty in pumping the chemicals.

Topics: Chemicals

Video: Punishing Drop Tests Prove Our Chemical Storage Tanks Can Take the Impact

Whether you're storing dangerous chemicals or common food-grade materials, reliability of structural integrity is one of the most important factors to consider when purchasing a tank.

Topics: Value Added

Sulfuric Acid Storage Resource Guide Exclusively from Poly Processing

Sulfuric acid can be a tricky chemical to store. Used in a wide variety of industrial applications, sulfuric acid is heavy, can create toxic or flammable gas, and can burn the skin. A smart storage solution for sulfuric acid should start with a well-thought-out tank design — not just the tank material but the entire storage system and all its components. Thinking through the entire sulfuric acid tank system design up front will help you protect your employees, the environment, and your investment. Read on for our recommendations on the right material, configuration, and standards for safe sulfuric acid storage.

Topics: Chemicals, Chemical Storage