JPS6092377A - Method for treating waste oil - Google Patents

Abstract

PURPOSE:To treat waste oil simply and cleanly, by adsorbing waste oil with dried potato starch refuse. CONSTITUTION:Dried potato starch refuse having a water content of 15-20% obtd. by dehydrating and drying waste having a water content of 85-95% formed in the production of starch from potatoes such as sweet potato, white potato and cassava, is used. A paper container whose inside has been waterproofed by an aluminum foil, etc. is filled with the above refuse and waste oil such as waste frying oil is introduced into the container to adsorb the oil with the starch refuse. The starch refuse must be used in a quantity of at least 30wt% based on that of the waste oil. The starch refuse contg. waste oil adsorbed thereon can be used as such as a fuel. Alternatively, the oil can be separated and recovered by pressing or solvent extraction.

Description

[Detailed description of the invention] This invention relates to a method for treating waste oil.

Waste oil such as tempura oil used at home etc.

The wax is difficult to handle and difficult to collect if left as is, so should it be disposed of in a vacant lot without being reused?

The body, clothing, and nearby utensils are being disposed of by methods such as adsorbing it onto waste paper and disposing of it for garbage collection.

Finally, because it easily adheres to walls and causes contamination, some people dispose of it in gutters or household sinks connected to public sewers, polluting the environment.

It is a source of pollution by interfering with sewage treatment.

The purpose of the method of the present invention is to dispose of such troublesome waste oil simply and cleanly, to facilitate its recovery, and to be useful for reuse and prevention of pollution.

The method of this invention takes advantage of the property of dried potato starch meal to adsorb and retain liquid oil well, and either prepares a container filled with dried potato starch meal and injects waste oil into it. Dried potato starch cake is added to the stored waste oil, which can be adsorbed by one of several methods.

The dried potato starch meal used in the method of this invention is a waste product discharged when starch is produced from potatoes such as sweet potato, horse mackerel, and challah mackerel, and has a moisture content of 85 to 9.
Dehydrate 5%.

It is dried to a moisture content of 15 to 20%.

Potato starch meal is rich in cellulose, hemicellulose, pectic substances, etc., and as shown in Table 1, it has excellent properties to adsorb and retain rice τ-camphor in other agricultural and forestry products. The table is.

Weight of main agricultural and forestry products (air-dried > 1oof) was weighed into a metal basket with 30 mesh holes, immersed in soybean oil for 1 hour, taken out, left to stand for 30 minutes to drain the oil, and weighed. The increase in oil adsorption is expressed as oil adsorption rate (%), and the weight of lees relative to the weight of oil at that time is expressed as lees/oil (%).

In the method of this invention, if the amount of waste oil is excessive compared to the amount of dry starch cake from potatoes, it will become like a bay and it will be difficult to achieve the purpose of nine shots. The amount of lees varies depending on the moisture content and the type of potato, but it is required to be at least 30% by weight, and preferably 50% by weight or more.

When waste oil is treated by the method of this invention.

For example, if you prepare a paper container in advance, waterproofing the inside with aluminum foil and filling it with dried potato starch lees, you can use it to remove old tempura oil.

It is simple and clean because it is possible to transport and incinerate the Sumi9 container as it is by pouring it in each time.

The calorific value of starch cake that has absorbed waste oil is high.

In addition to being able to be used as fuel as is, the oil can be separated by compression or solvent extraction.

Coupled with the ease of collection from households, it is useful for the effective use of waste oil, and for this reason, it is less likely that waste oil is illegally disposed of in kitchen sinks, etc., and it is also useful for preventing pollution. It is.

The waste oil that can be applied to the method of this invention is Tenjo oil.

Use liquid waste oil such as machine oil, kerosene, paint brushing liquid, etc.

There is no problem even if water or garbage is mixed in.

Next, examples of the method of this invention will be shown.

Example 1 A paper carton with an inner volume of 11 and having an aluminum foil vapor-deposited on its inner surface,
It was filled with powder 1502 of dried starch lees with a moisture content of 15%, and 400ml of used tempura oil was poured into it to absorb it. Even if the paper is left open on its side, the waste oil will not leak outside, and the calorific value of the starch lees that adsorbed the waste oil from tempura oil is 7.300 Kd/14, making it easy to open the container. could be incinerated.

Example 2 2.5 kg of Charasaba starch meal with an average particle size of 2wM was added to 51 waste machine oil stored in a tin container, and the adsorbed material could be scooped out with a shovel, making it double. Even when placed in a kraft paper bag, there was no oil stain in the inner part-1, and the calorific value of the waste oil adsorption sludge was 7,800 K.
”/kl).

Patent applicant Kagoshima Prefecture Governor Yoto Kamata

Claims (2)

[Claims] (1) A method for processing waste oil, which is characterized by adsorbing the waste oil to dried potato starch cake. (2) The method for treating waste oil according to claim I, wherein the waste oil is injected into a container filled with dried potato starch meal.