Solvents are toxic in nature. These are hazardous to both man’s health and to the environment. However, you cannot deny how important it is in many industries. In fact, a small auto repair shop must have enough supply of these chemical compounds if it wishes to run its operations without interruption. As a consequence, there is always the problem of proper disposal. If this is not addressed, just like other chemical waste, it will pose serious threat to man and his environment. Fortunately, solutions have been made to lessen significantly the unwanted effects. This is through the introduction of solvent recovery systems.
Industrial facilities that use any chemical solvent are required by law to be responsible in the disposal of chemical wastes. If these are found guilty of disregarding this, they may face court sanctions and severe penalties. This has pushed them to take measures in cleaning first anything that they dispose of. The use of recovery systems for solvents has become more common and the demand for it has risen. If you think that your business requires such a device, it will be best to have a deeper understanding of how this works. The points below may be of much help.
- The whole system basically works as a solvent recycler. Therefore, it does not merely clean something out of solvents. It also acts for acid recovery and extraction recovery, ridding an item on which the solvent was used of all toxic impurities.
- A distillation vessel is prepared. After this, the waste solution is put on the distillation or still vessel by batches or on a continuous manner. When the waste solution has filled a certain level, a thermal oil jacket, which is either steam heated or electrically heated, infuses heat into the distillation vessel and waste solution by thermal transfer.
- Because the distillation vessel is operated in a vacuum, the temperature of the boiling point of the waste solution or solvent is significantly lowered. Once the lowered boiling point is reached, the solvent evaporates, turning from liquid into gas, although at a controlled level.
- The vaporized solvent passes through a condenser. The condenser not only condenses but also cools the vaporized solvent. Consequently, the solvent returns to its liquid form and, at the same time, are cooled down to moderate temperatures. This is a process which some call as solvent purification.
- While the solvent is vaporized, the solids or non-volatile liquids, which contaminated it remains as it is. These are not vaporized. Instead, these sink into the distillation vessel’s bottom as dregs. As soon as these reach a concentrated level, these are discharged from the vessel. When this is done often in a single facility, this method can initiate and entire plant recovery process.
The process is beneficial not just for the environment but also for business. This lessens expenses on repurchases because the purified by-product resulting from the solvent recovery system can be used again for production purposes.