Solidification of liquid wastes is a widely used waste management method in a variety of industrial sectors. When evaluating different solidification products, absorption capacity is a critical parameter that should be understood before making a selection. Superabsorbent polymers (SAP) feature an absorption capacity that is approximately 75 times greater than traditional absorbents such as sawdust and dried granular corn cobs.
The physical properties of Coal Combustion Residuals (CCR) present many challenges to utility owners and environmental professionals. The waste material (commonly referred to as Coal Ash) is most often captured and stored in open ponds or impoundments, which allow for unrestricted stormwater infiltration, resulting in saturated CCR.
Every day our team receives many questions from current customers and interested future users of superabsorbent polymers (SAP) around the world.
We have provided answers to some of the most popular questions, below.
One of the core applications for superabsorbent polymers (SAPs) is liquid waste solidification. SAPs are utilized by waste management professionals to prevent potentially harmful fluids from entering waterways, groundwater aquifers, and other sensitive environments.
We’ve spoken previously about the performance and time savings benefits of the dissolvable film packaging for medical waste solidifiers. However, there are additional benefits to these packs; notably surrounding the storage and shipping aspects when compared to traditional bottle products.
A Step-by-Step Guide for Minimizing Reagent Quantities and Treatment Costs
Superabsorbent polymers (SAPs) are the most efficient available technology for eliminating free liquid and stabilizing saturated coal ash. However, without the proper planning steps, SAPs can be severely over-applied which often leads to unexpected treatment costs and/or underperformance.
The following steps are critical for the successful stabilization of coal ash with superabsorbent polymers:
Superabsorbent polymer (SAP) is commonly used in the manufacturing of ice packs used in the shipping of frozen and refrigerated food packaging.
SAP conglomerates, known as fisheyes, nodules, or gel balls, are common problems in ice pack production.
Fisheyes are denoted as globs or conglomerates of SAP gellant that do not readily hydrate when combined with water.
Rainy weather is often the last thing anyone wants to see on the forecast, whether your plans involve a round of 18, a day out on the boat, or a power plant CCR basin closure.
Water, while vital for life, can be an expensive nuisance when it comes at the wrong time and place.
For electric power utilities, closing a CCR basin during rainy season often result in the following scenarios:
- Missed deadlines
- Excessive chemical expenses, and
- Over-budget labor due to out-of-scope ash drying.
When a major U.S.-based municipal wastewater utility contractor needed a rapid, money-saving, and efficient solution for removing 1,000+ tons of saturated sludge from an aeration basin, they turned to ZapZorb superabsorbent polymers (SAPs).
When people refer to superabsorbent polymer (SAP), they often are referring to sodium polyacrylate which is the absorbent commonly found in diapers and other sanitary hygiene products.
Sodium polyacrylate is produced globally by several major suppliers through the polymerization, or chain building, of acrylic acid neutralized with sodium forming a sodium salt.