Aqueous cleaning uses water-based methods to remove dirt and oil from parts and equipment, reducing hazardous exposure to workers. It eliminates hazardous waste and air emissions and requires proper disposal of wastewater. Different cleaning units, such as spray cabinets and microbial sink top units, are used for different levels of soiling. Ultrasonic cleaning systems use waves to remove contaminants from internal crevices and are the fastest and most cost-effective method.
Aqueous cleaning is water-based and involves using various cleaning methods to remove grease, dirt and oil from parts and equipment. This form of cleaning is preferred for degreasing instead of using petroleum-based solvents, as there is less risk of hazardous exposure to workers. Aqueous degreasing methods use special equipment with biodegradable cleaning compounds to remove oil. The aqueous cleaning process consists of a water-based cleaning stage, followed by multiple aqueous rinsing stages.
Switching to aqueous cleaning from solvent-based systems significantly reduces or eliminates hazardous solid waste and air emissions. All wastewater from aqueous systems must be properly disposed of or treated, and the cleaning solutions in an aqueous system must be chemically compatible with the part to be cleaned. The water-based cleaning compounds used in aqueous cleaning depend on agitation and heat to break the dirt into tiny particles.
Spray booth cleaning units and microbial sink deck are two of the cleaning units used for wet cleaning. Aqueous spray cabinets clean equipment and parts by spraying high temperature solvents at high pressures inside an enclosed cabinet. Experts recommend spray cabinets for parts with hard-to-remove dirt. It is ideal for reducing the amount of cleaning work and offers a high level of cleaning performance.
Microbial sink top units are best for parts with light to moderate soiling. These units are equipped with filters that remove solid debris from the parts. Some of the benefits of using microbial sink top units for aqueous cleaning include low capital costs and the ability to avoid dry skin on the hands. The microbial technology used in these sink top units rarely requires disposal of the cleaning solution. Experts recommend changing the solution only when the cleaning performance decreases.
An ultrasonic cleaning system, which is also a wet cleaning system, requires a transducer, tank and generator. Transducers can be enclosed in a steel housing unit or glued to the bottom of a tank. The waves produced by the transducers exert tremendous pressure to loosen the soil in the cracks and blind holes. Cleaning is done by the cavitation process, where bubbles form rapidly and collapse into a liquid. These systems are ideal for removing contaminants from internal crevices and is the fastest and most cost-effective method of washing parts.
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