ABANAKI OIL
Aerodyne

Oil Skimmer Blog

7 Common Mistakes That Lead to the Wrong Oil Skimmer | Abanaki

Posted by Tom Hobson on Aug 31, 2020 9:30:00 AM

Selecting an oil skimmer can be a complex decision-making process. There are various factors you have to consider about your application when choosing the right skimmer. Here is a guide to help you avoid the 7 common mistakes that are made when purchasing an oil skimmer.

Under-Sizing Your Skimmer

A common misconception is that you can buy a smaller skimmer based on
gallons-per-hour skimming capacity for a big job to save money. However,
purchasing a small or mini unit instead of an industrial sized skimmer can be an ineffective method of oil skimming. Oil skimmers should be selected by the size of the area that needs to be skimmed, not just by the amount of oil needing to be removed.

Improper Placement of Oil Skimmers

Planning is important! Before spending money on a concrete pad and mounting arrangements, check where the oil actually collects in your process. Oil skimmers should be located opposite from the inflow and the tail pulley should be submerged two inches below the surface of the liquid in order to be as effective as possible.

Paying for a Complicated Solution

Oil skimming usually beats ultra-filtration systems in many applications. More often than not, installing large, complicated systems to remedy oil problems will not provide ideal results. You can save costs by using a relatively inexpensive oil skimming system to handle the free-floating oil and then a smaller treatment system to handle the oil that has remained suspended in the wastewater.

Not Telling Your Consultant or Vendor Everything

Oil skimmer selection can be a very complex process. There are numerous factors that go into selecting the right oil skimmer for your particular application. If the oil skimmer vendor does not know what chemicals or heat you have in your application, the wrong oil skimmer and belt materials could be selected, and the job will not get done correctly.

Choosing the Wrong Oil Skimming Material

There are several things to consider when choosing a belt or tube material for your oil skimmer. Some plastics will not stand up to heat or strong chemicals. Certain metal belts will not skim coolants effectively. Smooth belts do no pick up floating emulsified oils. Specific plastic belts do not last in heated applications, while other types of plastic belts will.

Lack of Maintenance and Basic Care

An oil skimmer will only remove oil if it is properly maintained. There are basic maintenance tasks that should be done regularly to keep your oil skimmer up to snuff. Are the wipers contacting the belt smoothly? Is the belt riding away from the sides of the pulley? Are the troughs and wipers clear of debris?

Buying from an Unknown Vendor Based on Price

Like most things in life, you get what you pay for. Buying from small, unheard of oil skimmer manufacturers will probably result in no customer support when maintenance issues pop up and little to no knowledge of how to resolve those issues. Furthermore, parts will need to be replaced over time, units might have to be changed or upgraded, or different belt materials need to be used. Disreputable vendors typically do not have a selection of materials or parts to choose from.


To learn more about oil skimmers, please contact our experts at 440-543-7400 or visit our website: www.abanaki.com


HOW TO TELL WHAT SKIMMER YOU NEED FOR YOUR MACHINE COOLANT

Have you ever looked at your coolant and wondered what type skimmer would work best in your machine sump? In this video, we talk about what oil skimmer works well in various coolant applications.

Read More

Topics: oil skimmers, belt skimmer, oil skimming, petroxtractor, belt oil skimmer, well oil skimmer

Oil Skimming: What is a DNAPL? | Abanaki

Posted by Tom Hobson on May 29, 2020 2:00:00 PM

DNAPL is short for dense non-aqueous phase liquid. Common DNAPLs include creosote, coal tar, and heavy oils; common DNAPL applications include degreasing and acting as a solvent. On the other hand, DNAPLs can also be the byproduct of industrial processes; in particular, a form of DNAPL known as multi-compound waste is a common type of waste oil. The defining aspect of DNAPLs, density, causes the mixture to sink in liquids like water or coolant. Because the sludge sinks, surface skimmers like rope skimmers have issues treating DNAPLs. Additionally, the density tends to cause problems with devices requiring a pump for collections because of its density, clogging the pipe or even breaking the pump itself.

Why are DNAPLs a Problem?

DNAPLs are common forms of wastewater pollution. Having DNAPLs leak into local groundwater is a violation of EPA regulations. In addition, DNAPLs can worsen working conditions in manufacturing. Often, these oils will emit a smell akin to sulfur as they break down.

DNAPLs may also reduce the effectiveness of machinery. The density can interfere with pumps or other methods of liquid conveyance, while the chemical properties of the DNAPL, depending on composition, can have adverse effects on the liquid it is suspended in.

These problems can actively interfere with the intended function of the machinery, leading to productivity loss or even damage to the machine.

How are DNAPLs Collected?

For DNAPLS, there are two general means of treatment: extraction and destruction. Extraction denotes the removal of the DNAPL from the liquid, while destruction means breaking down or neutralizing the DNAPLs to a level of minimal impact.

Methods of treatment include bioremediation, in situ methods like oxidation, reduction and flushing, barriers, soil vapor extraction (abbreviated as SVE) and air sparging, solidification and stabilization, pump and treat, and excavation. Skimmers are often used as supplements for in situ methods like flushing to hasten the removal of free-floating DNAPLs.  

Belt Oil Skimmers are the Best Method?

Belt oil skimmers can be an effective means of DNAPL treatment. Having an oleophilic belt gives the belt oil skimmer an inherent way to attract floating oils and emulsified fluids without relying on pumps or other like means. In addition, a belt oil skimmer like the PetroXtractor requires far less daily maintenance than pumps or other means of collection.

When pumps break down from clogs or internal mechanical failures, additional time is needed to correctly assess the problem and repair the problem. The pump also collects excess water, which is expected to be pumped back in the well and adds extra cost. Oil skimmers circumvent these problems.

The streamlined design of the PetroXtractor makes for easy assessment and repair in case of malfunction. Belt oil skimmers do not face the same clogging issues pumps do simply because there is almost nothing to clog.

Upkeep is straightforward and easy on a skimmer, often requiring a visit only once a week. The design of the PetroXtractor focuses on the collection of LNAPLs and DNAPLs without collecting water, preventing excess fluid from being collected. The PetroXtractor also can operate in fluctuating water levels as well as in more extreme conditions that pumps may have issues handling.


To learn more about oil skimmers, please contact our experts at 440-543-7400 or visit our website: www.abanaki.com


 

How Does a Well Oil Skimmer Work? | Abanaki

This animated demo shows how the PetroXtractor well oil skimmer works great with a large vertical drop making it ideal for wells and other small openings. Depths of 100 feet or more can be handled without the use of pumps.

Read More

Topics: oil skimmers, belt skimmer, oil skimming, petroxtractor, belt oil skimmer, well oil skimmer

Subscribe to Email Updates

Recent Posts

Posts by Topic

see all

Follow Me