Removing oily water depends on the context and volume of the oil and water. Here are a few common methods:
- Oil Skimmers: A belt oil skimmer is a simple and effective method for removing oil from water. It utilizes the difference in density between oil and water to separate them. [Reference: One of the easiest ways to remove hydrocarbons from water or coolant is by using a belt oil skimmer. It is a low maintenance, easy to use tool for removing oil from water or coolant. Belt oil skimmers, such as the Model 8, work because of the differences in specific gravity between oil and water.]
- Absorbent Pads: These pads are specifically designed to absorb oil while leaving the water behind. They are useful for small spills or cleaning oily bilges. [Reference: The pads will absorb oil and NOT water which is really nice. If you have oily water, just put a pad in it and it'll suck up the oil and leave the water behind.]
- pH Adjustment with Skimming: Lowering the pH of oily water with sulfuric acid can encourage the oil to rise to the surface, making skimming more effective. [Reference: One of the most common options is pH adjustment with oil skimming. This involves lowering the pH of the water using sulfuric acid. The process ...]
- Bioremediation: Using bacteria specifically designed to consume oil can be a natural and eco-friendly way to remove it from water. [Reference: The best (only) stuff I found to get rid of it is Bio Clean, which is a mix of detergent and oil-eating bacteria.]
For smaller amounts of oily water, you can also:
- Add detergent: This helps emulsify the oil, making it easier to drain. [Reference: Greasy water can def go down the drain, grease/oil cannot. Add a little more detergent to the water if you're especially concerned then put it down the drain ...]
- Let it settle: Oil naturally floats to the top of water. Allow the oily water to sit for a while, then carefully remove the oil layer.
Important note: Always dispose of oily water and oil-soaked materials properly. Check with local authorities for regulations in your area.
