cotton: a renewable resource for oil spill cleanups. - oil spill pads
Cotton has great potential in the application of oil leakage in absorbent products;
Non-woven fabrics can be used, but some educational and technological innovations must pave the way for future acceptance. When considering sorbentsystems, the first issue that must be addressed involves adding additional components to the oil spill
Practical experience has shown that it is desirable if added.
The purpose of the adsorption agent is to promote the change of phase.
Once oil enters the sobento structure, it is not difficult to extract oil.
Since the adsorption oil mixture has a completely different physical properties from the fluid, this will help with the recovery operation.
Another benefit of using an adsorbent is that it is able to capture and retain oil for later recovery.
This may be a major advantage because the initial speed at which the oil slick spreads in water is fast.
The quality of the oil adsorption agent is highly oil-friendly and hydrophilic, which is conducive to future recovery.
The other advantages of choosing the right adsorbent are selectivity, effectiveness and general applicability.
The adsorption agent should pick at least 90% of the Oil faced, and at least 90% of the oil should be picked from the fluid removed from the water surface.
The latter ability may be on-
Board storage and handling facilities.
Finally, the sorbentscan function of the fritters with different thickness and viscosity.
This feature is essential in order to design a general-purpose system that can handle most leakage situations.
The adsorption agent has physical properties, making its use in oil leakage cleaning attractive.
The data show that Cotton has an unusually high potential for use in sorbentsystems.
In order to be able to effectively compare different adsorption agents, the properties associated with the ideal adsorption agent need to be specified.
The role of the adsorption agent is to promote the separation of oil and water, so that the oil is easy to recycle;
Therefore, it should be highly oil-friendly because, as is often attracted, it indicates that the surface of the adsorption agent should be a carbon derivative.
It is also hoped that the adsorption agent will be selective to the fluid it absorbs.
The adsorption agent that simply acts as a sponge is effective in removing oil, but it also recycles a lot of water.
Since these water must be treated by a recycling unit, this will directly affect its design.
Ideally, the absorbent selectively removes the oil from the surface and injects almost all the water into it.
Whether on the basis of unit mass or unit volume, the oil removal capacity of the adsorption agent should be very large.
If the leak is located in a remote area and involves a problem of difficult traffic, the latter should be considered in particular.
It is important to recognize that in the recovery process of the sorbonita, the ideal adsorption agent should be able to capture a large amount of oil and retain a considerable proportion of this material.
Since the oil spill spreads very quickly, there may be a situation where the distribution of the adsorption agent is intended to prevent oil leakage.
In order to effectively capture adjacent oils, sorbent must have the ability to suck the oil into the material matrix.
This is the most convenient use of capillary phenomenon.
This, in turn, indicates that the ideal adsorption agent has a porous structure with a large specific surface area.
After the oil is captured, it is hoped that the oil can be easily removed from the water surface.
Therefore, easy recovery is an important feature of ideal adsorption agent.
This may not be a serious limitation since the recovery system may be quite primitive.
In general, the ideal adsorption agent would absorb such a large amount of oil that the material picked from the surface would have physical properties between the solid and the fluid.
It is worth noting that this change in physical properties can significantly improve the convenience of the recovery of the absorbent oil.
Finally, the adsorption agent and its degradation products are non-essential
Toxic to the environment.
This will ensure that even if a small part is not restored, the use of the sorbet will not cause permanent damage to the ecosystem.
In conclusion, the ideal adsorption agent should have the following properties :--
Oil-friendly and water-friendly-
Large oil removal capacity of unit mass and unit volume. --
High oil absorption--
Large surface volume ratio-
Both dry and oil have good floating performanceLoad adsorption agent--
Easy to retrieve--non-
Toxic and biodegradable.
The review of the human and capital resources of several oil spill cleaning companies by the actual adsorption performance standard shows that the main requirement of the actual adsorption agent is a practical system that must be used in a relatively simple environment with low cost.
In addition, the adsorption agent must be ready-made in terms of supply, can be stored, does not break down for a long time, the cost is reasonable.
In order to minimize the quality that must be picked up, the sorting of materials should have a very high ratio-
About 20 pounds of liquid per pound of absorbent.
In this case, 95% of the mass removed from the water is the fluid, and the rest is the absorbent.
A higher ranking level is possible, but the actual advantage is minimal.
The selectivity relative to the fluid being removed is also a key variable.
The collected liquid should preferably be no more than 10% water.
If the water fraction rises to a higher level, a secondary fluid separation system may be required.
The physical parameters associated with the oil slick will also affect to some extent the type of the required adsorbent.
If the oil slick is located in a very remote area and is difficult to reach by ordinary means of transport, then the reuse of the absorbent may be essential.
In these cases, a system is required to squeeze and redistribute the adsorption agent.
However, when considering issues related to smooth propagation and system complexity, reuse seems to have limited advantages.
The adsorption agent must also deal effectively with the spectrum of crudetype and smooth thickness.
Smooth thickness in the range 0. 1 to 2.
0mm can be adsorbed by materials.
In addition, the powerful function of viscosity should not be these phenomena.
In terms of float, the adsorption agent should be able to float indefinitely in order to facilitate recycling.
It should have the ability to retain the oil it absorbs if the absorbent is "beach.
The ecological impact of the adsorption agent should be like this, that is, the material is
If it is not recycled, it is toxic to the environment and will also lead to non-
Toxic degradation products in incinerators, sanitary landfill sites or biological treatmentsremediation.
In addition, it is desirable that the adsorption agent is biodegradable.
The adsorption agent should handle the economic recovery process of the oil itself so that the oil can be recovered if needed.
In recent years, the application of non-woven fabric technology in the field of oil spill has made great contributions through new products and innovative products;
Cotton Unlimited has developed an oil-absorbing material that meets the design features using nonwovenstechnotechnology.
The patented process also takes advantage of the natural water absorption capacity and water resistance of cotton.
The natural form of raw cotton has a layer of wax coating on the fiber, which helps to waterproof;
This in turn helps prevent mildew of cotton.
Cotton products then reject water and can float indefinitely on any one or salt water.
"InstaSorb" product is a high imitation cotton net with important structural features.
Tiny fibers create tiny internal pores that increase sweating and retention.
The saturation effect of oil entering cotton is caused by capillary action in cotton net structure.
Wave action and salt water do not affect the stability of the package formed by cotton.
In order for it to have tensile strength, it is bonded and needled.
The resulting material weighs one to one ounce per square foot.
This flat material can be used for roll, pad, sweep or packing of raw cotton blown in.
Then place the boom or sock in a cotton knit tube and the cotton rope goes through the middle of the boom.
This increases the power of prosperity.
The boom can then be used or connected separately to form a line or a circle.
In order to stop the directional flow of oil or surround aspill, the boom can be placed quickly.
Rolling forms of material can be laid on water or land to absorb spilled hydrocarbons.
It can then be placed through a ring-Bell to recover and salvage the spilled product.
The test shows that instasorb can be placed at least five times by ringing and still maintain its integrity.
In this way, about 90% of spills can be collected and salvaged.