KR19980071895A - Desalination in Food Waste Using Electric Field - Google Patents
Desalination in Food Waste Using Electric Field Download PDFInfo
- Publication number
- KR19980071895A KR19980071895A KR1019980021575A KR19980021575A KR19980071895A KR 19980071895 A KR19980071895 A KR 19980071895A KR 1019980021575 A KR1019980021575 A KR 1019980021575A KR 19980021575 A KR19980021575 A KR 19980021575A KR 19980071895 A KR19980071895 A KR 19980071895A
- Authority
- KR
- South Korea
- Prior art keywords
- food waste
- direct current
- salt
- electric field
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000010794 food waste Substances 0.000 title claims abstract description 36
- 230000005684 electric field Effects 0.000 title claims description 9
- 238000010612 desalination reaction Methods 0.000 title 1
- 150000003839 salts Chemical class 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000460 chlorine Substances 0.000 claims abstract description 6
- -1 chlorine ions Chemical class 0.000 claims abstract description 6
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 6
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 5
- 239000002361 compost Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011734 sodium Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fertilizers (AREA)
- Electrolytic Production Of Metals (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
본 발명은 음식물 쓰레기 내의 염분 제거 방법에 관한 것으로서, 전극을 이용하여 음식물 쓰레기 내의 전해질에 직류 전류를 흘려주는 단계, 상기 직류 전류의 (+)전극에서 염소 이온을 포집하는 단계 및 상기 직류 전류의 (-)전극에서 나트륨 이온을 포집하는 단계를 포함하는 것임을 특징으로 한다. 본 발명은 음식물 쓰레기 내에 포함되어 있는 염분을 효과적으로 제거할 수 있는 방법을 제공하여, 음식물 쓰레기를 퇴비나 사료로 용이하게 재활용할 수 있도록 한다.The present invention relates to a method for removing salt in food wastes, the method comprising flowing a direct current through an electrolyte in a food waste using an electrode, collecting chlorine ions from the positive electrode of the direct current, and -) Collecting sodium ions from the electrode. The present invention provides a method for effectively removing the salt contained in the food waste, so that the food waste can be easily recycled to compost or feed.
Description
본 발명은 음식물 쓰레기 내의 염분 제거 방법에 관한 것으로서, 특히 전기장을 이용하여 염분을 제거하는 것을 특징으로 한다.The present invention relates to a method for removing salt in food wastes, and in particular, to remove salt using an electric field.
국내에서 발생되는 음식물 쓰레기는 1997년을 기준으로 하루 평균 14,000톤에 이르고 있다. 이러한 음식물 쓰레기의 처리는 대부분 매립에 의존하고 있고, 최근에는 이러한 음식물 쓰레기를 사료 또는 퇴비로 재활용하기 위한 움직임이 있다.In 1997, the average amount of food waste generated in Korea is 14,000 tons per day. The disposal of such food waste is largely dependent on landfill, and recently there is a movement to recycle such food waste into feed or compost.
한편, 음식물 쓰레기를 재활용하는데 있어서 가장 문제가 되는 것은 염분이다. 국내에서 발생되는 음식물 쓰레기 내에 포함되어 있는 염분의 평균 농도는 건조 중량비로 3%에 이른다.On the other hand, salt is the most problematic problem in recycling food waste. The average concentration of salt contained in domestic food waste is 3% by dry weight ratio.
음식물 쓰레기 내에 포함된 염분은 음식물 쓰레기를 퇴비로 제조하여 사용할 경우에 토양을 딱딱하게 굳게 하는 작용을 하고 토양 오염을 유발하며, 작물의 수확량을 감소시키거나 고사 또는 발아 시기에 치명적인 영향을 준다.The salt contained in food wastes hardens the soil when it is produced and used as compost, causes soil contamination, reduces the yield of crops, and has a fatal effect on the time of death or germination.
음식물 쓰레기를 재활용하여 사료로 사용할 경우에도, 음식물 쓰레기에 포함되어 있는 과다한 염분은 독성을 띠게 된다.Even when food waste is recycled and used as feed, the excess salt in the food waste is toxic.
음식물 쓰레기 내에 포함되어 있는 염분은 대부분 물에 용해되어 이온 상태로 존재하거나, 음식물 쓰레기 내부에 약한 이온 결합의 형태로 존재하기 때문에, 종래에는 물로 세척하는 방법과 압력을 가하여 수분을 제거하는 압축법을 사용하였다.Since most of the salt contained in the food waste is dissolved in water to exist in an ionic state or in the form of weak ionic bonds in the food waste, conventionally, a method of washing with water and pressing to remove moisture by applying pressure Used.
그러나, 상기한 종래 기술에 의한 방법은 염분의 제거 효율이 만족스럽지 못하고, 다량의 물을 사용하여 세척하여야 하므로 제거 공정이 번거로워지고, 대규모의 시설이 필요하다.However, the above-described method according to the prior art is not satisfactory in the removal efficiency of salts, and the washing process is cumbersome because a large amount of water needs to be washed, and a large-scale facility is required.
본 발명은 상기한 바와 같은 종래 기술의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은, 음식물 쓰레기 내에 포함되어 있는 염분을 효과적으로 제거할 수 있는 방법을 제공하여, 음식물 쓰레기를 퇴비나 사료로 용이하게 재활용하도록 하는 것에 있다.The present invention is to solve the problems of the prior art as described above, an object of the present invention, by providing a method that can effectively remove the salt contained in the food waste, food waste easily compost or feed It's about making it recycle.
도 1은 본 발명에 따른 방법을 사용할 때의 시간에 따른 잔여 염분의 양 도표.1 is a diagram of the amount of salinity over time when using the method according to the invention.
상기한 목적을 달성하기 위하여, 본 발명에 의한 전기장을 이용한 음식물 쓰레기 내의 염분 제거 방법은, 전극을 이용하여 음식물 쓰레기 내의 전해질에 직류 전류를 흘려주는 단계, 상기 직류 전류의 (+)전극에서 염소 이온을 포집하는 단계 및 상기 직류 전류의 (-)전극에서 나트륨 이온을 포집하는 단계를 포함하는 것임을 특징으로 한다.In order to achieve the above object, the method for removing salt in food waste using an electric field according to the present invention comprises the steps of flowing a direct current to the electrolyte in the food waste using an electrode, chlorine ion at the positive electrode of the direct current And collecting sodium ions from the negative (-) electrode of the direct current.
상기한 본 발명에 의한 전기장을 이용한 음식물 쓰레기 내의 염분 제거 방법에서, 상기 직류 전류는 0.001A 내지 100A인 것임을 특징으로 한다.In the method of removing salt in food waste using the electric field according to the present invention, the direct current is characterized in that the 0.001A to 100A.
또한, 상기한 본 발명에 의한 전기장을 이용한 음식물 쓰레기 내의 염분 제거 방법에서, 상기 직류 전류 전원을 위하여 적용 가능한 전압은 0.01V 내지 1000V인 것임을 특징으로 한다.In addition, in the method for removing salt in food waste using the electric field according to the present invention, the voltage applicable for the DC current power source is characterized in that the 0.01V to 1000V.
이하에서, 본 발명의 바람직한 일실시예를 상세하게 설명한다.Hereinafter, a preferred embodiment of the present invention will be described in detail.
음식물 쓰레기 내에 직류 전류에 의한 전기장을 걸어주면, 직류 전류의 (+)극에는 염소 이온(Cl-), 직류 전류의 (-)극에는 나트륨 이온(Na+)이 모인다. 이러한 염소 이온과 나트륨 이온을 각각의 전극에서 포집하여 제거하면 음식물 쓰레기로부터 염분을 효과적으로 제거할 수 있다.When the electric field is applied by direct current in the food waste, chlorine ions (Cl − ) are collected at the positive pole of the direct current and sodium ions (Na + ) are collected at the negative pole of the direct current. Collecting and removing these chlorine ions and sodium ions at each electrode can effectively remove salt from food waste.
본 발명에서 음식물 쓰레기 내에 직류 전류를 흘려주기 위하여 사용된 전극으로는 그래파이트, 구리, 철, 백금 또는 이들의 조합에 의한 전극이 사용될 수 있고, 적용 가능한 전류는 0.001A∼100A이고, 적용 가능한 전압은 0.01V∼1000V이다.In the present invention, an electrode made of graphite, copper, iron, platinum, or a combination thereof may be used as the electrode used to flow a DC current in the food waste, and the applicable current is 0.001A to 100A, and the applicable voltage is 0.01V to 1000V.
이온이 이동할 수 있는 전해질로는 물을 비롯하여 나트륨 이온과 염소 이온이 이동할 있는 것이면 무관하다. 대부분의 음식물 쓰레기는 수분을 함유하고 있으므로 별도의 전해질을 추가하는 것은 불필요하나, 극히 예외적인 경우, 음식물 쓰레기에 이온들이 이동할 수 있도록 전해질을 추가할 수도 있다.Electrolytes that can move ions are irrelevant as long as sodium ions and chlorine ions, including water, move. Since most food wastes contain water, it is not necessary to add a separate electrolyte. However, in very exceptional cases, an electrolyte may be added to allow food to move in the food waste.
본 발명에 의한 방법을 적용하여 음식물 쓰레기 내에서 염분이 제거되는 효과를 실험하였다. 또한, 비교예로서 물로 세척하여 염분을 제거하는 종래의 방식과 염분 제거 효율을 비교하였다. 음식물 쓰레기 내의 염분의 농도 변화는 표준 방법에 의하여 질산소화를 이용하여 액상으로 만든 후 AA(원자흡광분석기)를 이용하여 분석하였다. 그 결과가 다음의 표 1과 도 1에 나타나있다.By applying the method according to the present invention was tested the effect of removing salt in food waste. In addition, the salt removal efficiency was compared with the conventional method of removing salt by washing with water as a comparative example. Changes in the concentration of salin in food waste were made into liquid phase using nitric oxide by standard methods and analyzed using AA (Atomic Absorption Spectrometer). The results are shown in Table 1 below and FIG. 1.
상기한 표 1과 첨부된 도 1에서 보이는 바와 같이, 본 발명에 의한 전기장을 이용한 음식물 쓰레기 내의 염분 제거 방법이 종래 기술에 비하여 염분 제거 효율이 월등히 우수한 것임을 알 수 있다.As shown in Table 1 and the accompanying Figure 1, it can be seen that the salt removal method in the food waste using the electric field according to the present invention is far superior to the salt removal efficiency compared to the prior art.
이상에서 설명한 바와 같이, 본 발명은 음식물 쓰레기 내에 포함되어 있는 염분을 효과적으로 제거할 수 있는 방법을 제공하여, 음식물 쓰레기를 퇴비나 사료로 용이하게 재활용할 수 있도록 한다.As described above, the present invention provides a method for effectively removing the salt contained in the food waste, so that the food waste can be easily recycled to compost or feed.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980021575A KR19980071895A (en) | 1998-06-10 | 1998-06-10 | Desalination in Food Waste Using Electric Field |
| KR1019980055191A KR100336868B1 (en) | 1998-06-10 | 1998-12-15 | Continuous Removal of Ions from Organic Waste Resources Using Electric Fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980021575A KR19980071895A (en) | 1998-06-10 | 1998-06-10 | Desalination in Food Waste Using Electric Field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980071895A true KR19980071895A (en) | 1998-10-26 |
Family
ID=65899792
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980021575A Ceased KR19980071895A (en) | 1998-06-10 | 1998-06-10 | Desalination in Food Waste Using Electric Field |
| KR1019980055191A Expired - Fee Related KR100336868B1 (en) | 1998-06-10 | 1998-12-15 | Continuous Removal of Ions from Organic Waste Resources Using Electric Fields |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980055191A Expired - Fee Related KR100336868B1 (en) | 1998-06-10 | 1998-12-15 | Continuous Removal of Ions from Organic Waste Resources Using Electric Fields |
Country Status (1)
| Country | Link |
|---|---|
| KR (2) | KR19980071895A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100444361B1 (en) * | 2002-08-27 | 2004-08-16 | 한국과학기술연구원 | Separation of Chlorine Containing Materials from Shredder Dust of Old Car by Electrostatic Separation Method |
| KR100814347B1 (en) * | 2007-01-25 | 2008-03-18 | 위니아만도 주식회사 | Vessel |
| KR101129400B1 (en) * | 2011-10-07 | 2012-03-26 | 주식회사 엘라이저 | The method and device for food garbage disposal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100423568B1 (en) * | 2001-07-05 | 2004-03-18 | 서희동 | Desalting method for garbage |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8702437A (en) * | 1987-10-13 | 1989-05-01 | Geo Kinetics B V I O | METHOD FOR CONDITIONING GROUND MATERIAL BY ELECTROKINETIC TREATMENT, ELECTRIC FLOW SYSTEM FOR APPLICATION OF THE METHOD AND ELECTRODE HOUSING FOR USE IN THE ELECTRIC FLOW SYSTEM. |
| JPH08281247A (en) * | 1995-04-11 | 1996-10-29 | Shigeru Orito | Electrochemical treatment |
-
1998
- 1998-06-10 KR KR1019980021575A patent/KR19980071895A/en not_active Ceased
- 1998-12-15 KR KR1019980055191A patent/KR100336868B1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100444361B1 (en) * | 2002-08-27 | 2004-08-16 | 한국과학기술연구원 | Separation of Chlorine Containing Materials from Shredder Dust of Old Car by Electrostatic Separation Method |
| KR100814347B1 (en) * | 2007-01-25 | 2008-03-18 | 위니아만도 주식회사 | Vessel |
| KR101129400B1 (en) * | 2011-10-07 | 2012-03-26 | 주식회사 엘라이저 | The method and device for food garbage disposal |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990024163A (en) | 1999-03-25 |
| KR100336868B1 (en) | 2002-08-28 |
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