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Immersion Cleaning and the Environment

Immersion cleaning is the process by wherein parts of equipments to be cleaned are placed in a cleaning solution, keeping them in contact with the entire parts' surface. These parts are preferably placed in baskets or containers for processing, and require a long soaking time, because of the type of contamination to be removed or the shape of the parts. It is the most effective and fastest method for cleaning, especially when using eco-friendly cleaners, for parts involved in any process, heated or at room temperature.

Immersion cleaners and solvents are safe and biodegradable cleaning solutions that effortlessly remove grease, oil, wax, inks, adhesive residues and other dirt build up on any surface. These cleaners and solvents include the citrus-based cleaner degreaser, a non-toxic, non-corrosive biodegradable solvent that is ideal for dip tanks and pressure spray units. Another popular cleaner available is the Bio T 300B. This is a cleaner with a neutral pH level, making it non-toxic and biodegradable. It also has a longer bath life compared to other non-toxic cleaning products.

Applying an immersion cleaning system to a facility will bring great benefits not just to the company, but to the environment as well. This simple and economical process lowers capital costs and reproduces measurable results. It allows facilities to use non-toxic or non-ozone depleting substances (ODS) instead of solvents such as methyl, chloroform, methyl ethyl ketone and others. This will lessen any staff injuries or illness that may result from handling or cases of accidental intake. Using this system may also decrease the amount of waste generated by a facility. This will help the company comply with Resource Conservation and Recovery Act (RCRA), 40 CFR 262 requirements. Hazardous waste reduction, in turn, may also help facilities reduce their generator status and lessen the number of regulatory requirements such as record keeping, inspections, transportation, accumulation time and reporting.

For an immersion cleaning system to be effective and utilized properly, there are critical elements to consider in designing one. These are:


Immersion Tank Design  –  They should be sized to fit the parts or baskets to be cleaned


Immersion Tank Materials  –  Suitable materials are stainless steel and high-density polypropylene to prevent corrosion and warping


Agitation  –  The system works best when good agitation is applied to the cleaning process. The cleaning liquid should rotate in the tank at least once very five minutes


Bath Maintenance  –  For an effective cleaning system, the proper cleaning solution concentration must be used


Rinse Tank Design  –  Parts can be rinsed either by spraying or by dipping in tanks with circulating water. This ensures that all cleaning liquids are removed from the parts cleaned


Rinse Tank Materials  –  Stainless steel or painted mild steel is recommended for regular rinse tanks. Larger systems require metal tanks to be used


Rinse Tank Maintenance  –  When the rinse solution becomes cloudy, it's an indication that is should be replaced with clean water


Pumps  –  These generate the agitating and circulating movement of liquids inside the tank. Important aspects include size of the tank, size of piping and amount of agitation needed


Pump Constructions  –  Pumps should be constructed form stainless steel or hard plastic


Filters  –  These removes particulate and oil contaminants that are removed form the parts cleansed

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