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Industrial Wastewater Pretreatment Chemicals

Most industrial wastewater filters require a chemical pretreatment process. Without chemical pretreatment, soluble water impurities would remain “in solution” and pass through a filter or plug it up instantly.

The chemical pretreatment step separates oil emulsions, surfactants, suspended solids and dissolved metals from a liquid water phase. This chemical precipitation is achieved through pH adjustment and/ or polymer treatment. These treatment methods pull the impurities together so they become an insoluble particle that is heavier than the water; causing the impurity to “fall out of solution”.

Chemical Details

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ALAR warehouses a variety of chemical pretreatment products for industrial user applications such as sludge dewatering, pH neutralization and solids settling/clarification. ALAR also has access to filter aid media, defoamer or antifoam, and odor control chemical agents.

Dry & Liquid Polymers

Cationic and anionic polymers use a molecular chain to bridge small wastewater particles into a group of large solid particles; also known as coagulation or flocculation. Polymers increase flow rates, enhance effluent quality, conserve filter aid usage and provide cost savings.

Industrial wastewater is a moving target, no two waste streams react the same. ALAR understands these differences, and uses its chemical, engineering and technical resources to deliver a cost-effective treatment solution. ALAR offers a wide range of anionic and cationic blends used for both coagulation and flocculation of solids.


ALAR supplies a treatment product that consists of a bentonite clay that absorbs particles, and chemical separating agent that encapsulates solids. This unique formula removes emulsified oils, ink particles, phosphates and suspended solids from industrial wastewater. One-Step™ is not a filter aid media, but a pretreatment chemical that is added to wastewater prior to filtration.

pH Adjustment / pH Neutralization Chemicals

ALAR carries industrial pH control chemicals used for neutralization or the precipitation and removal of heavy metals, surfactants and emulsified wastewater solids.


Contact ALAR to get help on your custom water solutions