KR101611436B1 - Recycling system of food waste effluent - Google Patents

Recycling system of food waste effluent Download PDF

Info

Publication number
KR101611436B1
KR101611436B1 KR1020140086179A KR20140086179A KR101611436B1 KR 101611436 B1 KR101611436 B1 KR 101611436B1 KR 1020140086179 A KR1020140086179 A KR 1020140086179A KR 20140086179 A KR20140086179 A KR 20140086179A KR 101611436 B1 KR101611436 B1 KR 101611436B1
Authority
KR
South Korea
Prior art keywords
tank
liquid
waste water
storage tank
wastewater
Prior art date
Application number
KR1020140086179A
Other languages
Korean (ko)
Other versions
KR20160006508A (en
Inventor
백종학
변경태
Original Assignee
백종학
변경태
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 백종학, 변경태 filed Critical 백종학
Priority to KR1020140086179A priority Critical patent/KR101611436B1/en
Publication of KR20160006508A publication Critical patent/KR20160006508A/en
Application granted granted Critical
Publication of KR101611436B1 publication Critical patent/KR101611436B1/en

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Landscapes

  • Fertilizers (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

본 발명은 음폐수를 전처리한 다음 원심분리하여 고형물은 퇴비의 원료로 사용하고, 전처리액을 호기성 발효와 응집반응 및 탈수처리를 거친 후 필터링하여 액비로 사용하거나 음폐수와 혼합하여 음폐수의 염분과, BOD를 감소시킬 수 있는 장점이 있는 음폐수의 재활용 시스템을 개시한다.In the present invention, the waste water is pretreated and then centrifuged to use the solid material as a raw material for compost. The pretreatment liquid is subjected to aerobic fermentation, coagulation reaction and dehydration treatment, and then filtered and mixed with liquor wastewater. And a waste water recycling system having an advantage of reducing BOD.

Description

음폐수의 재활용 시스템{RECYCLING SYSTEM OF FOOD WASTE EFFLUENT}RECYCLING SYSTEM OF FOOD WASTE EFFLUENT

본 발명은 음폐수의 재활용 시스템에 관한 것으로, 더욱 상세하게는 음식물 폐수가 저장되는 음폐수저장조와; 상기 음폐수저장조에 저장된 음폐수가 투입되며, 음폐수 내의 염분과, 유기물을 제거하고, 음폐수의 pH를 조정하는 약액주입조와; 상기 약액주입조에서 투입되는 음폐수를 고형물과 전처리액으로 분리하기 위한 원심분리기와; 상기 원심분리기를 통해 분리된 전처리액을 저정하는 유기저장조와; 상기 유기저장조에서 투입되는 전처리액에 호기성 미생물과 공기를 공급하여 유기물과 영양염류가 제거된 중간처리액이 저장되는 호기발효조와; 상기 호기발효조로부터 투입되는 중간처리액을 저장하는 혼합조와; 상기 혼합조로부터 투입되는 중간처리액을 응집반응조 및 벨트프레스기에 통과시켜 잔존유기물과 부유물질이 제거된 후처리액이 저장되는 처리수조와; 상기 처리수조에서 투입되는 후처리액을 필터링하여 액비를 저장하는 액비저장조;를 포함하여 이루어지며, 상기 원심분리기에서 분리된 고형물은 퇴비의 원료로 사용하고, 상기 액비저장조 내의 액비는 상기 음폐수저장조에 재투입하여 음폐수저장조에 투입되는 음폐수의 염분과 BOD를 감소시키기 위하여 사용하거나 액비로 사용하는 것을 특징으로 하는 음폐수의 재활용 시스템에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste water recycling system, and more particularly, to a waste water recycling system for waste water. A chemical solution injector into which the negative wastewater stored in the negative wastewater storage tank is introduced and removes salt and organic substances from the negative wastewater and adjusts the pH of the negative wastewater; A centrifugal separator for separating the negative wastewater fed from the chemical liquid feed tank into a solid matter and a pretreatment liquid; An organic storage tank for storing the pretreatment liquid separated through the centrifugal separator; An aerobic fermentation tank in which aerobic microorganisms and air are supplied to a pretreatment liquid introduced from the organic storage tank and an intermediate treatment liquid in which organic substances and nutrients are removed is stored; A mixing tank for storing an intermediate treatment liquid introduced from the aerobic fermentation tank; A treatment water tank through which the intermediate treatment liquid injected from the mixing tank is passed through the flocculation reaction tank and the belt press to store the treatment liquid after the remaining organic matter and suspended substances are removed; And a liquid storage tank for storing the liquid waste by filtering the post-treatment liquid supplied from the treatment water tank, wherein the solid material separated from the centrifugal separator is used as a raw material for compost, and the liquid waste in the liquid waste storage tank is stored in the waste water storage tank To reduce the salt and BOD of the waste water to be added to the waste water storage tank, or to use the waste water as a pot.

일반적으로 음식물폐수는 고농도 폐수와 다량의 염분을 함유하여 호기성발효는 현실적으로 어려움이 있다, 그리하여 혐기성처리에 주력하고 또한 부산물로 얻어지는 메탄가스를 전력으로 생산하여 수익을 내고 있는 현실이다. In general, food wastewater contains high concentration wastewater and a large amount of salt, so that aerobic fermentation is difficult in reality. Therefore, it is a reality that concentrates on anaerobic treatment and produces methane gas, which is obtained as a byproduct, with electric power.

그런데 혐기성처리에 소용되는 비용과 기술인력이 해외에서 들어온 설비와 기술로서 많은 예산이 소요되고 있는 것이 현실이다. However, it is a reality that the cost and the technical manpower that are used for anaerobic treatment are consuming a lot of budget as facilities and technology that are imported from abroad.

혐기성처리의 장점이 여러 가지가 있는데, 음식물폐수의 원수성상과 수질을 살펴보면 그자체로는 고농도, 고영양염류, 강산성과 염분으로 인해 혐기성처리에 어려움이 많이 있다. There are many advantages of anaerobic treatment. As for raw water properties and water quality of food wastewater, anaerobic treatment is difficult due to high concentration, high nutrient salt, strong acidity and salt.

그중에 우선이 바로 염분과 강산성을 띠고 있다는 것이다. 염분과 산성을 띠고 있어 미생물자체가 살 수 없는 상태여서 전처리가 불가피하다. First of all, it has salt and strong acidity. It is inevitable that microorganisms themselves can not live because they have salt and acidity.

또한 많은 유기물과 부유물로 인해 여러 가지 제거 기작이 필요하게 된다.In addition, many organic materials and suspended materials require various removal mechanisms.

현재 음식물을 이용한 자원화 시설이 전국적으로 18개소 이상 분포하고 있으나, 유입수관리가 일정하지 못하고, 혐기성발효공정에서 실제로 발효공정의 저하로 많은 양의 전기를 생산하지 못하고 있는 실정이다. Currently, there are more than 18 resource utilization facilities in Korea nationwide, but influent water management is inconsistent, and in the anaerobic fermentation process, a large amount of electricity can not be produced due to a decrease in the fermentation process.

혐기발효는 산발효, 유기산발효, 메탄발효공정을 통해 가스를 생산하는데, 발효공정중 한공정만 문제가 발생하더라도 가동율은 현저히 떨어지게 된다. Anaerobic fermentation produces gas through acid fermentation, organic acid fermentation, and methane fermentation process. Even if there is a problem in the fermentation process, the utilization rate is significantly lowered.

또한, 혐기발효에 필요한 중고온(38~46)을 유지하기 위해 많은 추가비용이 발생되게 된다. In addition, many additional costs will be incurred to maintain the used hot (38 ~ 46) required for anaerobic fermentation.

또한 혐기발효후 나오는 폐액은 그대로 자원화 하기에는 질소 및 인과 같은 영양염류가 높아서 토양에 액비로 활용 했을 경우 토양 및 농작물에 많은 영향을 주게 되는 것이 현실이다. In addition, since the waste liquid from anaerobic fermentation is high in nutrients such as nitrogen and phosphorus to be used as a raw material, it has a great influence on the soil and crops when used as a fertilizer in the soil.

현재 법적인 액비의 기준이 마련되고 있어서 혐기발효 후 나온 폐액은 액비기준에 부적합하여 향후 많은 문제를 야기 시킬 것으로 사료된다.
Since the legal standard of liquid is provided at present, it is considered that the waste liquid after anaerobic fermentation is not suitable for the liquid level standard and will cause many problems in the future.

대한민국 등록특허공보 제10-0518722호(음식물쓰레기의 처리방법)Korean Patent Registration No. 10-0518722 (Treatment of Food Waste) 대한민국 등록특허공보 제10-0463893호(음식물쓰레기를 퇴비화하는 완전호기 자연발효방법)Korean Patent Registration No. 10-0463893 (full fermentation natural fermentation method for composting food waste)

본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 음폐수(음식물 폐수)를 전처리한 다음 원심분리하여 고형물은 퇴비의 원료로 사용하고, 전처리액을 호기성 발효와 응집반응 및 탈수처리를 거친 후 필터링하여 액비로 사용하거나 음폐수와 혼합하여 음폐수의 염분과, BOD를 감소시킬 수 있는 음폐수의 재활용 시스템을 제공하는데 그 목적이 있다.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method for treating waste water (food wastewater) by pretreating and then centrifuging, The present invention also provides a system for recycling wastewater, which can reduce the salt content and BOD of the waste wastewater by mixing the waste wastewater with the wastewater.

상기와 같은 목적을 위하여 본 발명은 음식물 폐수가 저장되는 음폐수저장조와; 상기 음폐수저장조에 저장된 음폐수가 투입되며, 음폐수 내의 염분과, 유기물을 제거하고, 음폐수의 pH를 조정하는 약액주입조와; 상기 약액주입조에서 투입되는 음폐수를 고형물과 전처리액으로 분리하기 위한 원심분리기와; 상기 원심분리기를 통해 분리된 전처리액을 저정하는 유기저장조와; 상기 유기저장조에서 투입되는 전처리액에 호기성 미생물과 공기를 공급하여 유기물과 영양염류가 제거된 중간처리액이 저장되는 호기발효조와; 상기 호기발효조로부터 투입되는 중간처리액을 저장하는 혼합조와; 상기 혼합조에 저장된 중간처리액을 응집반응조 및 벨트프레스기에 통과시켜 잔존유기물과 부유물질이 제거된 후처리액이 저장되는 처리수조와; 상기 처리수조에서 투입되는 후처리액을 필터링하여 액비를 저장하는 액비저장조;를 포함하여 이루어지며, 상기 원심분리기에서 분리된 고형물은 퇴비의 원료로 사용하고, 상기 액비 저장조 내의 액비는 상기 음폐수저장조에 재투입하여 음폐수저장조에 투입되는 음폐수의 염분과 BOD를 감소시키기 위하여 사용하거나 액비로 사용하며, 상기 약액주입조 내에는 음폐수의 염분을 제거하기 위한 산화칼슘(CaO)과, 음폐수의 유기물을 제거하기 위한 염화제2철 및 폴리머와, 음폐수의 pH를 조절하기 위한 수산화나트륨이 투입되되, 상기 유기저장조에 저장된 여액의 C/N비가 3~4:1이 되도록 하여 호기발효조 내에서 원활한 호기성 발효가 이루어질 수 있도록 상기 산화칼슘은 음폐수 100중량부에 대하여 0.1~0.3중량부가 투입되고, 상기 염화제2철은 음폐수 100중량부에 대하여 0.3~0.5중량부가 투입되며, 폴리머는 음폐수 100중량부에 대하여 0.05~0.2중량부가 투입되고, 수산화나트륨은 음폐수 100중량부에 대하여 0.01~0.1중량부가 투입되는 것을 특징으로 한다.
In order to achieve the above-mentioned object, the present invention provides a waste water treatment system comprising: a waste water storage tank in which food wastewater is stored; A chemical solution injector into which the negative wastewater stored in the negative wastewater storage tank is introduced and removes salt and organic substances from the negative wastewater and adjusts the pH of the negative wastewater; A centrifugal separator for separating the negative wastewater fed from the chemical liquid feed tank into a solid matter and a pretreatment liquid; An organic storage tank for storing the pretreatment liquid separated through the centrifugal separator; An aerobic fermentation tank in which aerobic microorganisms and air are supplied to a pretreatment liquid introduced from the organic storage tank and an intermediate treatment liquid in which organic matter and nutrients are removed is stored; A mixing tank for storing an intermediate treatment liquid introduced from the aerobic fermentation tank; A treatment water tank through which the intermediate treatment liquid stored in the mixing tank is passed through the flocculation reaction tank and the belt press to store the treatment liquid after the remaining organic matter and suspended substances are removed; And a liquid storage tank for storing the liquid waste by filtering the post-treatment liquid supplied from the treatment water tank, wherein the solid material separated from the centrifugal separator is used as a raw material for compost, and the liquid waste in the liquid waste storage tank is stored in the waste water storage tank And is used for reducing salinity and BOD of negative wastewater to be fed into the waste water storage tank or used as a liquid waste. In the chemical liquid infusion tank, calcium oxide (CaO) for removing salt of the waste water, Wherein the ferric chloride and the polymer to remove the organic matter of the waste water and the sodium hydroxide to adjust the pH of the waste water are fed into the aerobic fermenter so that the C / N ratio of the filtrate stored in the organic storage tank is 3 to 4: The calcium oxide is added in an amount of 0.1 to 0.3 parts by weight based on 100 parts by weight of the waste water, and the ferric chloride is added to 100 parts by weight of the waste water Adding 0.3 to 0.5 parts by weight is added with respect to, the polymer sound addition of 0.05 to 0.2 parts by weight being added with respect to 100 parts by weight of waste water, characterized in that the addition 0.01 to 0.1 parts by weight with respect to the negative input waste water 100 parts by weight of sodium hydroxide.

삭제delete

삭제delete

상기와 같이 이루어지는 본 발명은 음폐수를 전처리한 다음 원심분리하여 고형물은 퇴비의 원료로 사용하고, 전처리액을 호기성 발효와 응집반응 및 탈수처리를 거친 후 필터링하여 액비로 사용하거나 음폐수와 혼합하여 음폐수의 염분과, BOD를 감소시킬 수 있는 장점이 있다.
In the present invention as described above, the wastewater is pretreated and then centrifuged to use the solid material as a raw material for compost. The pretreatment liquid is subjected to aerobic fermentation, coagulation reaction and dehydration treatment, and then filtered and mixed with potable water There is an advantage that the salinity and BOD of the waste water can be reduced.

도 1은 본 발명에 따른 음폐수의 재활용 시스템의 공정도.
도 2는 본 발명에 따른 음폐수의 재활용 시스템을 나타내는 예시도.
1 is a process diagram of a system for recycling waste water according to the present invention;
Fig. 2 is an exemplary view showing a system for recycling waste water according to the present invention; Fig.

이하, 첨부된 도면을 참조하면서 본 발명에 따른 음폐수의 재활용 시스템에 대하여 더욱 상세하게 설명하도록 한다. Hereinafter, a system for recycling waste water according to the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 고농도 폐수와 다량의 염분이 함유된 음식물폐수(이하 음폐수)를 전처리한 다음 원심분리하여 고형물은 퇴비의 원료로 사용하고, 전처리액은 호기성 발효와 응집반응 및 탈수처리를 거친 후 필터링하여 액비로 사용하거나 상기 액비를 음폐수 저장조에 재투입하여 투입된 음폐수의 염분과 BOD를 감소시켜 줌으로써 호기발효조 내에서 전처리액의 호기성발효를 더욱 촉진시키는 것을 기술적 특징으로 하는 음폐수의 재활용 시스템에 관한 것이다.The present invention relates to a method and apparatus for pretreating food wastewater containing high-concentration wastewater and a large amount of salt (hereinafter referred to as " wastewater ") and then centrifuging the solid wastewater to use the solid material as a raw material for compost. The pretreatment liquid is subjected to aerobic fermentation, The present invention relates to a recycling system for a waste water recycling system that further promotes aerobic fermentation of a pretreatment liquid in an aerobic fermentation tank by reducing the salinity and BOD of the used wastewater by re- .

본 발명은 크게 음폐수저장조(10)와, 약액주입조(20)와, 원심분리기(21)와, 유기저장조(30)와, 호기발효조(40)와, 혼합조(50)와, 처리수조(60) 및 액비저장조(70)로 이루어진다. The present invention mainly relates to a waste water storage tank 10, a chemical liquid infusion tank 20, a centrifuge 21, an organic storage tank 30, an aerobic fermentation tank 40, a mixing tank 50, (60) and a liquid storage tank (70).

상기 음폐수저장조(10)는 음식물 폐수가 저장되는 탱크이며, 상기 약액주입조(20)는 상기 음폐수 저장조로부터 투입되는 음폐수의 염분과, 유기물을 제거하고, 음폐수의 pH를 조정한다.The wastewater storage tank 10 is a tank for storing food wastewater. The chemical tank 20 removes salt and organic matter from the wastewater discharged from the wastewater storage tank, and adjusts the pH of the wastewater.

음폐수에는 다량의 염분이 함유되어 있기 때문에 염분이 제거되지 않은 음폐수로부터 분리된 고형물을 통해 만들어진 퇴비를 사용할 경우 염분이 지속적으로 쌓이면서 작물이 고사하게 된다. 또한, 염분이 다량으로 함유되어 있기 때문에 호기성 발효가 어려워 고가의 설비가 요구되는 혐기성 발효를 통한 처리가 이루어지게 된다. Because the waste water contains a large amount of salinity, when the compost made from the solid material separated from the unsalted wastewater is used, the salt is continuously accumulated and the crop is damaged. In addition, since salt is contained in a large amount, aerobic fermentation is difficult, and treatment through anaerobic fermentation, in which expensive facilities are required, is achieved.

본 발명에 따른 약액주입조(20)는 상기 음폐수에 함유된 염분과 유기물이 제거된 전처리액을 형성하는 공간이며, 상기 전처리액을 원심분리기(21)를 통해 고형물을 분리하여 퇴비의 원료로 재활용한다. The chemical solution injector 20 according to the present invention is a space for forming a pretreatment liquid from which saline and organic substances contained in the waste water are removed. The solid matter is separated from the pretreatment solution through a centrifugal separator 21, Recycle.

상기 약액주입조(20) 내에는 음폐수의 염분을 제거하기 위한 산화칼슘(CaO)과, 음폐수의 유기물을 제거하기 위한 염화제2철 및 폴리머와, 음폐수의 pH를 조절하기 위한 수산화나트륨이 투입된다. In the chemical liquid infusion tank 20, calcium oxide (CaO) for removing the salt of the negative wastewater, ferric chloride and polymer for removing the organic matter of the negative wastewater, sodium hydroxide .

상기 음폐수의 염분을 제거할 때에는 산화칼슘(CaO)을 대신해 산화 마그네슘(MgO)이나 수산화칼슘(Ca(OH)2)를 사용할 수도 있다. In order to remove the salt of the waste water, magnesium oxide (MgO) or calcium hydroxide (Ca (OH) 2) may be used instead of calcium oxide (CaO).

상기 산화칼슘은 음폐수 100중량부에 대하여 0.1~0.3중량부가 투입되고, 상기 염화제2철은 음폐수 100중량부에 대하여 0.3~0.5중량부가 투입되며, 폴리머는 음폐수 100중량부에 대하여 0.05~0.2중량부가 투입되고, 수산화나트륨은 음폐수 100중량부에 대하여 0.01~0.1중량부가 투입되는 것이 바람직하며, 이는 상기 유기저장조에 저장된 여액의 C/N비가 3~4:1의 비율을 유지하여 호기발효조 내에서 원활한 호기성 발효가 이루어질 수 있도록 하기 위한 것이다. The calcium chloride is added in an amount of 0.1 to 0.3 parts by weight based on 100 parts by weight of the waste water, 0.3 to 0.5 parts by weight of the ferric chloride is added to 100 parts by weight of the waste water, To 0.2 parts by weight of sodium hydroxide and 0.01 to 0.1 part by weight of sodium hydroxide are added to 100 parts by weight of the waste water. This is because the C / N ratio of the filtrate stored in the organic reservoir is maintained at 3 to 4: 1 So that smooth aerobic fermentation can be performed in the aerobic fermentation tank.

상기 산화 마그네슘(MgO)이나 수산화칼슘(Ca(OH)2)을 사용할 때에는 상기 산화칼슘(CaO)과 마찬가지로 음폐수 100중량부에 대하여 0.1~0.3중량부를 투입한다.When magnesium oxide (MgO) or calcium hydroxide (Ca (OH) 2) is used, 0.1 to 0.3 parts by weight are added to 100 parts by weight of the waste water as calcium oxide (CaO).

또한, 유기저장조는 유기탄소원과 질소의 비율을 3~4:1로 유지하여 호기발효조에 투입하게 된다. 여기서 유기탄소원과 질소의 비율을 이같이 유지하는 이유는 하기의 표1과 같은 분석결과로 우선 호기발효액 100L에 임의로 C/N비를 조정하여 투입액을 4L 투입하고 질소가 제거되는 소용일수를 측정한 결과 C/N비가 3:4~1일 때 음폐수내 질소를 제거하는데 높은 효율을 유지하였다.In addition, the organic reservoir is maintained at a ratio of organic carbon source to nitrogen of 3 to 4: 1, and is then fed to the aerobic fermenter. The reason for maintaining the ratio of organic carbon source to nitrogen is as follows. As a result of the analysis as shown in Table 1 below, the C / N ratio was adjusted to 100 L of the aerobic fermentation broth, and 4 L of the feed liquid was added. And high efficiency in removing nitrogen in the negative wastewater when the C / N ratio was 3: 4 ~ 1.

표 1은 C/N비에 따른 질소제거 소요일을 측정한 결과Table 1 shows the results of measuring the nitrogen removal days according to the C / N ratio 용해성 BODSoluble BOD T-NT-N C/N비C / N ratio 호기발효액Aerobic fermentation liquid 원수투입액Raw input 질소제거소요일Nitrogen removal day 28,00028,000 4,2004,200 6.7:16.7: 1 100L100L 4L4L 7일7 days 22,20022,200 4,2004,200 5.3:15.3: 1 100L100L 4L4L 4일4 days 12,40012,400 4,2004,200 2.9:12.9: 1 100L100L 4L4L 1.5~2일1.5 to 2 days 6,0006,000 4,2004,200 1.4:11.4: 1 100L100L 4L4L 4일4 days

한편, 본 발명에 따른 상기 유기저장조(30)는 상기 원심분리기(21)를 통해 분리된 전처리액을 저정하는 탱크이며, 상기 호기발효조(40)는 상기 유기저장조(30)에서 투입되는 전처리액에 호기성 미생물과 공기를 공급하여 유기물과 영양염류가 제거된 중간처리액이 저장되는 탱크이고, 상기 혼합조(50)는 상기 호기발효조(40)로부터 투입되는 중간처리액을 저장하는 탱크이며, 상기 처리수조(60)는 상기 혼합조(50)에 저장된 중간처리액을 응집반응조(51) 및 벨트프레스기(52)에 통과시켜 잔존유기물과 부유물질이 제거된 후처리액이 저장되는 탱크이다. Meanwhile, the organic storage tank 30 according to the present invention is a tank for storing a pretreatment liquid separated through the centrifugal separator 21, and the exhalation fermentation tank 40 is connected to the pretreatment liquid injected from the organic storage tank 30 Wherein the mixing tank (50) is a tank for storing an intermediate treatment liquid supplied from the aerobic fermentation tank (40), and the treatment tank The water tank 60 is a tank in which the intermediate treatment liquid stored in the mixing tank 50 is passed through the flocculation tank 51 and the belt press 52 to store the post-treatment liquid after the remaining organic matter and suspended substances are removed.

상기 원심분리기(21)를 거친 전처리액이 곧바로 호기발효조(40)로 투입되지 않고 유기저장조(30)에 저장되는 이유는 음폐수가 순차적으로 배치된 설비를 따라 이송되면서 처리공정을 거칠 때, 예를 들어 호기발효조(40) 내에 호기성 미생물과 공기를 투입하여 전처리액에 함유된 유기물과 영양염류를 제거하는 호기성 발효가 이루어지기 위해서는 소정의 시간이 소요되기 때문에 음폐수저장조(10) 내에 저장된 음폐수를 지속적으로 공급할 수 없다. 이에 상기 원심분리기(21)를 통해 분리된 전처리액을 유기저장조(30) 내에 저장하였다가 호기발효조(40) 내에서 호기성 발효가 완료되어 내부의 중간처리액을 후단의 설비로 이송하면 호기발효조(40) 내부에 전처리액을 투입하게 된다. The reason why the pretreatment solution passed through the centrifuge 21 is immediately stored in the organic storage tank 30 without being input to the aerobic fermentation tank 40 is that when the waste water is transported along the equipment in which the waste water is sequentially disposed, It takes a predetermined time to perform aerobic fermentation in which aerobic microorganisms and air are introduced into the aerobic fermentation tank 40 to remove organic matter and nutrients contained in the pretreatment solution. Therefore, Can not be supplied continuously. The pretreatment liquid separated through the centrifugal separator 21 is stored in the organic storage tank 30. After the aerobic fermentation is completed in the aerobic fermentation tank 40 and the intermediate treatment liquid in the inner tank is transferred to the subsequent facility, 40 into which the pretreatment liquid is injected.

상기 혼합조(50) 역시 마찬가지로 후단에 위치한 처리수조(60)가 후처리액을 수용할 수 있을 때 상기 혼합조(50)에 저장된 중간처리액을 응집반응조(51)와 벨트프레스기(52)로 투입한다. The mixing tank 50 is also connected to the agglomerated reaction tank 51 and the belt press 52 when the treatment water tank 60 located at the rear end can accommodate the post- .

즉, 상기 유기저장조(30)와 혼합조(50)는 다음 공정을 위하여 각각 전처리액과 중간처리액을 일정기간 체류시키는 역할을 한다. That is, the organic storage tank 30 and the mixing tank 50 serve to retain the pretreatment liquid and the intermediate treatment liquid for a predetermined period for the next process.

상기 액비저장조(70)는 상기 처리수조(60)에서 투입되는 후처리액을 필터링하여 최종적으로 형성된 액비를 저장하는 탱크이며, 본 발명은 상기 액비저장조(70)에 저장된 액비를 상기 음폐수저장조(10)에 재투입하여 음폐수저장조(10)에 투입되는 새로운 음폐수와 혼합시켜 줌으로써 새롭게 투입된 음폐수의 염분과 BOD를 감소시켜 호기발효조에서 호기성 발효가 더욱 원활하게 이루어지도록 하여 지속적으로 양질의 액비를 생산할 수 있다.
The liquid storage tank 70 is a tank for storing the finally formed liquid storage by filtering the post-treatment liquid supplied from the treatment water tank 60. The present invention can be applied to the liquid storage tank 70, 10 to mix it with new fresh wastewater to be added to the waste water storage tank 10, thereby reducing the salinity and BOD of the fresh wastewater, thereby allowing aerobic fermentation to be carried out more smoothly in the aerobic fermentation tank, Can be produced.

상기와 같이 이루어지는 본 발명은 음폐수를 전처리한 다음 원심분리하여 고형물은 퇴비의 원료로 사용하고, 전처리액을 호기성 발효와 응집반응 및 탈수처리를 거친 후 필터링하여 액비로 사용하거나 음폐수와 혼합하여 음폐수의 염분과, BOD를 감소시킬 수 있는 장점이 있다.
In the present invention as described above, the wastewater is pretreated and then centrifuged to use the solid material as a raw material for compost. The pretreatment liquid is subjected to aerobic fermentation, coagulation reaction and dehydration treatment, and then filtered and mixed with potable water There is an advantage that the salinity and BOD of the waste water can be reduced.

10 : 음폐수저장조 20 : 약액주입조
21 : 원심분리기 30 : 유기저장조
40 : 호기발효조 50 : 혼합조
51 : 응집반응조 52 : 벨트프레스
60 : 처리수조 70 : 액비저장조
10: Waste water storage tank 20: chemical solution injection tank
21: Centrifuge 30: Organic storage
40: aerobic fermentation tank 50: mixing tank
51: Coagulation bath 52: Belt press
60: treated water tank 70: liquid storage tank

Claims (3)

음식물 폐수가 저장되는 음폐수저장조(10)와;
상기 음폐수저장조로부터 투입되는 음폐수의 염분과, 유기물을 제거하고, 음폐수의 pH를 조정하는 약액주입조(20)와;
상기 약액주입조에서 투입되는 음폐수를 고형물과 전처리액으로 분리하기 위한 원심분리기(21)와;
상기 원심분리기를 통해 분리된 전처리액을 저정하는 유기저장조(30)와;
상기 유기저장조에서 투입되는 전처리액에 호기성 미생물과 공기를 공급하여 유기물과 영양염류가 제거된 중간처리액이 저장되는 호기발효조(40)와;
상기 호기발효조로부터 투입되는 중간처리액을 저장하는 혼합조(50)와;
상기 혼합조에 저장된 중간처리액을 응집반응조 및 벨트프레스기에 통과시켜 잔존유기물과 부유물질이 제거된 후처리액이 저장되는 처리수조(60)와;
상기 처리수조에서 투입되는 후처리액을 필터링하여 액비를 저장하는 액비 저장조(70);를 포함하여 이루어지며,
상기 원심분리기(21)에서 분리된 고형물은 퇴비의 원료로 사용하고, 상기 액비 저장조(70) 내의 액비는 상기 음폐수저장조(10)에 재투입하여 음폐수저장조에 투입되는 음폐수의 염분과 BOD를 감소시키기 위하여 사용하거나 액비로 사용하며,
상기 약액주입조 내에는 음폐수의 염분을 제거하기 위한 산화칼슘(CaO)과, 음폐수의 유기물을 제거하기 위한 염화제2철 및 폴리머와, 음폐수의 pH를 조절하기 위한 수산화나트륨이 투입되되,
상기 유기저장조에 저장된 여액의 C/N비가 3~4:1이 되도록 하여 호기발효조 내에서 원활한 호기성 발효가 이루어질 수 있도록 상기 산화칼슘은 음폐수 100중량부에 대하여 0.1~0.3중량부가 투입되고, 상기 염화제2철은 음폐수 100중량부에 대하여 0.3~0.5중량부가 투입되며, 폴리머는 음폐수 100중량부에 대하여 0.05~0.2중량부가 투입되고, 수산화나트륨은 음폐수 100중량부에 대하여 0.01~0.1중량부가 투입되는 것을 특징으로 하는 음폐수의 재활용 시스템.
A waste water storage tank (10) in which food wastewater is stored;
A chemical infusion tank 20 for removing salt and organic matter from the waste water from the waste water storage tank and adjusting the pH of the waste water;
A centrifugal separator (21) for separating the negative wastewater fed from the chemical liquid feed tank into a solid matter and a pretreatment liquid;
An organic storage tank 30 for storing the pretreatment liquid separated through the centrifugal separator;
An aerobic fermentation tank 40 in which aerobic microorganisms and air are supplied to the pretreatment liquid introduced from the organic storage tank to store an intermediate treatment liquid in which organic matter and nutrients are removed;
A mixing tank (50) for storing the intermediate treatment liquid supplied from the aerobic fermentation tank;
A treatment water tank 60 through which the intermediate treatment liquid stored in the mixing tank is passed through the flocculation tank and the belt press to store the post-treatment liquid after the remaining organic matter and suspended substances are removed;
And a liquid storage tank (70) for filtering the post-treatment liquid supplied from the treatment water tank to store the liquid oil,
The solids separated in the centrifugal separator 21 are used as a raw material for compost and the liquid ratio in the liquid storage tank 70 is returned to the negative wastewater storage tank 10, To reduce or to use as a pot,
In the chemical liquid feed tank, calcium oxide (CaO) for removing salt of the negative wastewater, ferric chloride and polymer for removing the organic matter of the negative wastewater, and sodium hydroxide for adjusting the pH of the negative wastewater are fed ,
The calcium oxide is added in an amount of 0.1 to 0.3 parts by weight based on 100 parts by weight of the wastewater so that the C / N ratio of the filtrate stored in the organic storage tank is 3 to 4: 1 so that aerobic fermentation can be smoothly performed in the aerobic fermentation tank, 0.3 to 0.5 part by weight of the ferric chloride is added in an amount of 0.3 to 0.5 part by weight based on 100 parts by weight of the waste water, 0.05 to 0.2 part by weight of the polymer is added to 100 parts by weight of the waste water, And the weight of the waste water is recycled.
삭제delete 삭제delete
KR1020140086179A 2014-07-09 2014-07-09 Recycling system of food waste effluent KR101611436B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140086179A KR101611436B1 (en) 2014-07-09 2014-07-09 Recycling system of food waste effluent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140086179A KR101611436B1 (en) 2014-07-09 2014-07-09 Recycling system of food waste effluent

Publications (2)

Publication Number Publication Date
KR20160006508A KR20160006508A (en) 2016-01-19
KR101611436B1 true KR101611436B1 (en) 2016-04-12

Family

ID=55306084

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140086179A KR101611436B1 (en) 2014-07-09 2014-07-09 Recycling system of food waste effluent

Country Status (1)

Country Link
KR (1) KR101611436B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3480171A1 (en) 2017-11-03 2019-05-08 Korea Institute of Science and Technology Food wastewater treatment system and operation method of the same
KR20190050474A (en) 2017-11-03 2019-05-13 한국과학기술연구원 Food wastewater treatment system
KR102540706B1 (en) 2022-01-28 2023-06-07 이순걸 Disk dry system with process for the zero-discharge treatment of food waste pollution source

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107266132A (en) * 2017-07-07 2017-10-20 河北诚润环保工程有限公司 A kind of reclaiming organic waste circulation utilization method
CN108774081A (en) * 2018-08-10 2018-11-09 江苏思威博生物科技有限公司 A kind of resource utilization method of feces of livestock and poultry

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200425442Y1 (en) 2006-04-13 2006-09-06 주식회사 드림바이오스 The facilities of pre-treatment of food wastes using hammer milling, centrifuge, and enzymatic process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463893B1 (en) 2002-02-18 2004-12-30 디프러스 주식회사 Natural Fermentation method to get food waste compost by aerobic bacteria
KR100518722B1 (en) 2003-01-21 2005-10-04 서희동 Method of garbage treatment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200425442Y1 (en) 2006-04-13 2006-09-06 주식회사 드림바이오스 The facilities of pre-treatment of food wastes using hammer milling, centrifuge, and enzymatic process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3480171A1 (en) 2017-11-03 2019-05-08 Korea Institute of Science and Technology Food wastewater treatment system and operation method of the same
KR20190050477A (en) 2017-11-03 2019-05-13 한국과학기술연구원 Food wastewater treatment system and operation method of the same
KR20190050474A (en) 2017-11-03 2019-05-13 한국과학기술연구원 Food wastewater treatment system
KR102540706B1 (en) 2022-01-28 2023-06-07 이순걸 Disk dry system with process for the zero-discharge treatment of food waste pollution source

Also Published As

Publication number Publication date
KR20160006508A (en) 2016-01-19

Similar Documents

Publication Publication Date Title
KR101611436B1 (en) Recycling system of food waste effluent
Al-Mallahi et al. Attempts to alleviate inhibitory factors of anaerobic digestate for enhanced microalgae cultivation and nutrients removal: A review
JP6683843B2 (en) Phosphate recovery method
KR101369718B1 (en) Manufacturing Apparatus and Method for Organic Carbon Source using Food Waste Water
TW200736176A (en) Apparatus and method for treating organic-containing wastewater
CN104787982A (en) Treatment method of garbage leachate
KR101532371B1 (en) High efficiency liquid fertilizer manufacturing system for resourcization of livestock excrements
CN105417877A (en) Novel livestock wastewater treatment process
US9944893B2 (en) Method for organic waste hydrolysis and acidification and an apparatus thereof
KR101425104B1 (en) System for producing biogas using substitution reaction in pretreatment process of anaerobic fermentation to improve biogas production from organic wastes, production method thereof and biogas produced by the method
KR100770626B1 (en) Bio gas collection system of organic waste
CN102531285B (en) Process for treating high-concentration organic wastewater of paper-making reconstituted tobacco
CN107188365A (en) A kind of method of advanced treatment of landfill leachate
Kuglarz et al. Chemical precipitation and ammonia air stripping as effective pre-treatment methods before membrane filtration of co-digestion effluents
KR20160034652A (en) Production method and system for fertigation liquid fertilizer using anaerobic digestive fluid
CN104925943B (en) A kind of sanitary sewage landfill leachate treatment agent and preparation method thereof
EP3066205B1 (en) Process for producing biogas comprising a reduction of ammonium concentration by anammox
EP3510006B1 (en) Process and apparatus for treating manure sludge
JP2022034249A (en) Purification treatment method for methane fermentation digestion liquid and purification treatment system for methane fermentation digestion liquid
WO2020239878A1 (en) Method for the production of biogas
KR20170141885A (en) Method for extracting high efficiency organic carbon source from food waste
US12031166B2 (en) Method for the production of biogas
KR100971255B1 (en) Apparatus for recycling of organic waste water
Akinci et al. Composting and Beneficial Use of Tannery Wastewater Treatment Sludges
KR101328503B1 (en) Low salt and high efficiency bio-gas producing method and apparatus for use in on-site food waste treatment system

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20190129

Year of fee payment: 4