TWI473671B - A waste disposal methods of the renewable energy - Google Patents

Description

Waste treatment and renewable energy method

The present invention relates to a method for regenerating energy, and more particularly to a method for producing renewable energy together when treating waste.

Due to the improvement of living standards, modern people attach great importance to environmental protection issues. Although Taiwan does not produce aluminum bismuth, there are tens of thousands of tons of waste aluminum products entering the recycling system every year. The main source of waste aluminum slag is aluminum cans. Waste aluminum scraps such as aluminum doors and windows are smelted and turned into aluminum ingots, which are used as waste residues after reclaiming raw materials.

At present, there is no consistent aluminum slag treatment method in the world, so most of the waste slag is still disposed of by landfill. Taking Taiwan as an example, the price of buried aluminum slag is more and more due to the waste of aluminum slag and the legal landfill is scarce. The price is also relatively high, which causes the unscrupulous manufacturers to directly treat untreated waste aluminum slag in order to save processing costs. Discard or arbitrarily bury, causing serious pollution to the environment. The toxicity of the waste aluminum slag buried in the ground will not disappear after many years, and the chemical reaction of the buried waste aluminum slag after contact with water will produce malodor.

The current method for recycling waste aluminum slag, taking the invention patent case No. 233312 of our country as an example, is to fully enhance the aluminum slag after being subjected to wet ball milling, sieving, gas stripping, ammonia removal, and mud sedimentation. The grade of residual metal aluminum can be smelted back to the furnace. Although this part can be reused for the waste aluminum slag part, there is no better resource recovery and reuse for the water soaked in the waste aluminum slag during the treatment, due to the treatment process. Soaked aluminum slag Ammonia and methane are released in the water. Ammonia gas has the odor of Amonia irritating, and the human body may have symptoms such as cough and respiratory discomfort, and ammonia gas is an acute gas. If it is a large concentration, it will leak out, and the ventilation condition may be bad, which may cause chemical pneumonia. Pulmonary edema, the consequences are fatal, and when the concentration of methane in the air reaches 25% to 30%, the body will have symptoms before asphyxia, dizziness, rapid breathing, pulse rate, fatigue, inattention, ataxia, Fine movement disorders, even suffocation.

It can be seen that if the waste aluminum slag is not properly treated during the treatment, it will not only cause environmental pollution, but also cause serious damage to human health, and the waste water, ammonia gas and methane generated by soaking waste aluminum slag. It can be used more effectively in recycling. In addition to improving the problems of air pollution and human health, it can also achieve environmental protection, energy conservation and efficient use of resources. It is indeed worth exploring and improving.

Accordingly, it is an object of the present invention to provide a method of treating waste energy from waste, the method comprising the following steps.

First, the waste aluminum slag is collected and placed in a first treatment tank, and then the first treatment tank is filled with water to chemically react the waste aluminum slag with water and allowed to stand for a while. Then, the waste aluminum slag is separated from the water from the first treatment tank, and finally, the separated water is collected together to be used as a fuel or the like.

The utility model has the advantages that the waste aluminum slag is separated from the water after being treated in the waste aluminum slag treatment process, and the separated water is collected together, which can be used as a fuel energy source and a recycled material, thereby not only reducing the waste aluminum for immersion Slag The waste water treatment costs incurred and the resulting random dumping lead to environmental pollution problems, and the wastewater generated by soaking waste aluminum slag can be more accurately, safely and effectively recycled, thereby achieving sustainable use of resources. And the advantages of environmental protection.

The details of the related patents and the technical contents of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings.

Before the detailed description, it should be noted that similar elements are denoted by the same element numbers.

1 is a first preferred embodiment of a method for treating waste energy from waste according to the present invention, which is suitable for immersing a waste aluminum slag 2 in water 3 for chemical reaction, and the waste treatment and regeneration energy system includes a first The processing tank 11, the second processing tank 12, and an exhaust duct 14.

The first processing tank 11 is configured to receive the collected waste aluminum slag 2 and water 3. The second processing tank 12 is disposed on one side of the first processing tank 11 and includes a first processing tank 11 connected thereto. The connecting tube 120 of the second processing tank 12.

In the first preferred embodiment, the waste treatment and regenerative energy system of the present invention further includes a combustion chamber 13. However, in actual practice, the combustion chamber 13 may not be required to exist. The combustion chamber 13 may be a place where combustion is required at all times, for example, an incinerator, a boiler, or the like, which requires a large amount of combustion by fire.

It is worth mentioning that the combustion chamber 13 is disposed in the second processing tank 12 One side. The exhaust duct 14 includes a draft end 141, a discharge end 142 opposite to the exhaust end 141, and a suction fan 143 disposed in the exhaust duct 14 and interposed between the exhaust end 141 and the discharge end 142, wherein The exhaust end 141 is disposed above the first processing tank 11, and the discharge end 142 is disposed in the combustion chamber 13.

Referring to FIG. 2, according to the hardware configuration of the waste disposal and renewable energy system, the waste treatment and regeneration energy method of the present invention comprises the following steps. First, in step 901, the waste aluminum slag 2 is collected and the waste aluminum slag 2 is placed in the first treatment tank 11. In the first preferred embodiment, the main material of the waste aluminum slag is selected from the group consisting of aluminum metal, aluminum oxide, aluminum nitride, aluminum carbide, aluminum chloride, cerium oxide, and the like.

Next, in step 902, water 3 is injected into the first treatment tank 11, so that the water 3 can be flooded through the waste aluminum slag 2 to chemically react the waste aluminum slag 2 with the water 3, and immersed for a while. In the first preferred embodiment, the weight ratio of the added water 3 to the waste aluminum slag 2 is 3:1, and usually 1 ton of waste aluminum slag 2 needs to be immersed in 3 tons of water 3 And the time during which the waste aluminum slag 2 is immersed in the water 3 is from 3 hours or more to several days.

Then, in step 903, since the waste aluminum slag 2 is a non-hydrophilic material, the waste aluminum slag 2 stacked in the water 3 does not dissolve in the water, and therefore, the first treatment tank must be continuously stirred during the immersion process. The waste aluminum slag 2 in 11 is used for a period of time so that the waste aluminum slag 2 can sufficiently chemically react with the water 3.

In the process of soaking the water 3, the waste aluminum slag 2 is chemically reacted by contacting the aluminum nitride in the waste aluminum slag 2 with the water 3, thereby releasing ammonia gas and methane, and the chemical reaction formula is AlN+3H2O. Al(OH)3+NH3. Part of the ammonia and methane can be dissolved directly in the water 3, and the others become bubbles.

Then, in step 904, since the exhaust end 141 of the exhaust duct 14 is disposed above the first processing tank 11, and the discharge end 142 is disposed in the combustion chamber 13, when the driving fan 143 is started to rotate, The ammonia gas and the methane emitted in the first treatment tank 11 are collected and introduced into the combustion chamber 13, and since the ammonia gas and the methane are combustible gases having a combustion-supporting effect, they can be directly used for the combustion chamber 13.

Here, it should be noted that the water 3 in the first treatment tank 11 undergoes a vigorous chemical reaction with the waste aluminum slag 2, and a large amount of ammonia gas and methane are generated, and part of the ammonia gas and methane are dissolved in the water. The other portion is extracted into the combustion chamber 13 by the exhaust pipe 14 for combustion, and the combustion chamber 13 may be an apparatus such as an incinerator or a boiler that requires constant combustion. Since ammonia gas and methane are combustion-supporting gases, introduction into the combustion chamber 13 can assist combustion.

In addition, because ammonia has the odor of Amonia irritating, the human body may have symptoms such as cough and respiratory discomfort, and the ammonia gas is an acute gas. If the concentration is high, the ventilation condition is poor. The cause of chemical pneumonia, pulmonary edema, etc., is fatal. The present invention solves the problem of air pollution by introducing most of the ammonia gas and methane into the combustion chamber 13 for combustion.

Then, in step 905, the waste aluminum slag 2 is separated from the water 3 from the first treatment tank 11, and the separation may be performed by guiding the water 3 in the first treatment tank 11 to the water through the connection pipe 120. In the second processing tank 12, The waste aluminum slag 2 and the water 3 are separated into two treatment tanks, or the waste aluminum slag 2 is picked up into the second treatment tank 12.

Then, in step 906, the above steps 901 to 904 are repeated, and the collected water 3 is repeatedly immersed in the waste aluminum slag 2, and since the water 3 is repeatedly immersed in the waste aluminum slag 2, the water 2 is dissolved. Ammonia and methane concentrations will increase.

Then, in step 907, when the ammonia gas and the methane dissolved in the water 3 reach a predetermined concentration, the ammonia water can be obtained. At this time, the ammonia water 3 can be collected and used as a fuel. In this first preferred embodiment, water 3 is first collected and then filtered to remove aluminum slag and other impurities from water 3. Here, it should be noted that in the first preferred embodiment, the reverse osmosis filtration method is used for filtering, but in actual implementation, other filtering methods may also be adopted, and are not limited thereto.

Finally, in step 908, since the boiling point of the ammonia water is 33.35 degrees, spontaneous combustion is likely to occur at normal temperature, and the danger is extremely high. If the collected water 3 is treated with low temperature, spontaneous combustion can be avoided to ensure safety. In the first preferred embodiment, we perform the low temperature treatment of the collected water 3, and the low temperature treatment may be performed by forming the ammonia water into ice cubes to stabilize the properties for delivery to the combustion chamber 13 for use as a fuel, or It is shipped to it.

According to the above description, since the temperature of the waste aluminum slag 2 and the water 3 is highly reacted, the water separated in the first treatment tank 11 flows into the second treatment tank 12, so Separation of water is a safe and labor-saving method. And by soaking the water of the waste aluminum slag 2 The dosage is very considerable. For example, 1 ton of waste aluminum slag 2 requires 3 tons of water 3 for immersion. According to the present invention, the collected water 3 is repeatedly immersed in the waste aluminum slag 2, thereby saving water and resources. The function of effective use further increases the concentration of ammonia in the water 3, turns the ordinary water 3 into ammonia water, and further uses it as a fuel for the combustion chamber 13.

3 and 4 are a second preferred embodiment of the method and system for recycling waste energy according to the present invention. The second embodiment is substantially the same as the first embodiment, and the same points are not described herein again. The exhaust end 141 of the waste treatment and regenerative energy system is disposed above the first treatment tank 11 , and the discharge end 142 is disposed in the second treatment tank 12 .

In the step 904 of the waste treatment and regenerative energy method, since the exhaust end 141 of the exhaust duct 14 is disposed above the first treatment tank 11, and the discharge end 142 is disposed in the second treatment tank 12, When the fan 143 is started to rotate, the gas emitted from the first processing tank 11 can be introduced into the second processing tank 12.

The water 3 in the second treatment tank 12 is discharged from the first treatment tank 11, and the ammonia gas is dissolved in the water. The ammonia gas and methane emitted from the first treatment tank 11 pass through the first The exhaust end 141 of the exhaust duct 14 disposed above the processing tank 11 is drawn to the discharge end 142 inserted in the water of the second treatment tank 12, and the generated ammonia gas and methane are again discharged into the water 3 for The concentration of ammonia in the water 3 of the second treatment tank 12 is increased, and when the concentration of ammonia and methane in the water 3 reaches a predetermined concentration, it can be used as a fuel.

It is worth mentioning that the present invention can collect excess ammonia water after passing through low It can be transported and sold by means of warm preservation or icing. Among them, high-concentration ammonia can be diluted and used in agriculture, industry and medicine industries. For example, it can be used as fertilizer after dilution in agriculture, and it is used in industry for fertilizer production. Man-made fibers or plastics. The organic industry is used as an aminating agent and the like. The use of diluted ammonia in medicine is a reflective stimulus for breathing and circulation, used to treat fainting and fainting, and as a skin irritant and disinfectant.

In view of the above, in view of the modern people's high attention to environmental issues, the inventor of this case developed the water used in the process of treating waste aluminum slag as energy use, so that resources can be recycled, which can not only solve the problem of nowhere to be stacked, but also It will not cause waste of national resources, and it will indeed improve the air pollution, environmental pollution and human health caused by ammonia, methane and ammonia discharge, and achieve the effects of reduction, energy saving and harmlessness. Therefore, it is indeed possible to achieve the purpose of the present invention. .

However, the above is only the two preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change of the patent application scope and the description of the invention is Modifications are still within the scope of the invention.

11‧‧‧First treatment tank

12‧‧‧Second treatment tank

120‧‧‧Connecting tube

13‧‧‧ combustion chamber

14‧‧‧Exhaust pipe

141‧‧‧Exhaust end

142‧‧‧ discharge end

143‧‧‧fan

2‧‧‧Disposable aluminum slag

3‧‧‧ water

901~908‧‧‧Steps

1 is a system configuration diagram of a first preferred embodiment of a method and a system for recycling waste energy of the present invention; and FIG. 2 is a flow chart of a first preferred embodiment of the method and system for recycling waste energy of the present invention Figure 3 is a system configuration diagram of a second preferred embodiment of the waste treatment and regenerative energy source method and system thereof of the present invention; and Figure 4 is a second preferred embodiment of the waste treatment and regenerative energy source method and system thereof of the present invention Step flow chart.

901~908‧‧‧Steps

Claims (9)

A waste treatment and regenerative energy method comprising the steps of: (A) collecting waste aluminum slag and placing it in a first treatment tank; (B) injecting water into the first treatment tank to chemically liquefy the waste aluminum slag and water Reacting and immersing for a period of time; (C) separating the waste aluminum slag from the water from the first treatment tank; (D) collecting the separated water together as a recycled material; and (H) The recycled material is subjected to low temperature treatment to form ice cubes. The waste treatment and regenerative energy source method according to claim 1, further comprising a step (E) between the step (B) and the step (C), wherein the step (E) is during the immersion process The waste aluminum slag in the first treatment tank is stirred so that the waste aluminum slag can sufficiently chemically react with water. The method for recycling waste energy according to item 2 of the patent application scope further comprises a step (F) between the step (C) and the step (D), wherein the step (F) repeats the step ( A) ~ (C), the collected water is repeatedly soaked in the waste aluminum slag. According to the waste treatment and regenerative energy source method described in claim 3, a step (G) between the step (D) and the step (H) is further included, and the collected water is filtered to remove impurities in the water. . The waste treatment renewable energy method according to the fourth aspect of the invention, wherein in the step (B), the ratio of the waste aluminum slag to water is 1:3. The waste treatment regenerative energy source method according to claim 5, wherein in the step (B), the waste aluminum slag is immersed in water for 3 hours or longer. According to the waste treatment and regenerative energy source method of claim 6, wherein in the step (C), one of the first treatment tanks is provided with a second treatment tank, which is separated from the first treatment tank. The water is flowing into the second treatment tank. The method for recycling waste energy according to claim 7 further includes a step (I) between the step (B) and the step (C), wherein the step (I) is collecting the first treatment The gas emitted by the chemical reaction is used for combustion. According to the waste treatment and regenerative energy source method of claim 7, further comprising a step (J) between the step (B) and the step (C), the step (J) is the first treatment The gas emitted from the tank is directed to the water in the second treatment tank.