KR20010078879A - Equipment and Method of Cleaning Wastewater by the Cultivating Microorganism with the ozone(O3) - Google Patents
Equipment and Method of Cleaning Wastewater by the Cultivating Microorganism with the ozone(O3) Download PDFInfo
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- KR20010078879A KR20010078879A KR1020010025640A KR20010025640A KR20010078879A KR 20010078879 A KR20010078879 A KR 20010078879A KR 1020010025640 A KR1020010025640 A KR 1020010025640A KR 20010025640 A KR20010025640 A KR 20010025640A KR 20010078879 A KR20010078879 A KR 20010078879A
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000002351 wastewater Substances 0.000 title claims abstract description 41
- 244000005700 microbiome Species 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title description 2
- 238000004140 cleaning Methods 0.000 title 1
- 238000005273 aeration Methods 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000005276 aerator Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims 1
- 230000007812 deficiency Effects 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- 230000001580 bacterial effect Effects 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 description 17
- 238000000354 decomposition reaction Methods 0.000 description 4
- 244000144972 livestock Species 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- WURFKUQACINBSI-UHFFFAOYSA-M ozonide Chemical compound [O]O[O-] WURFKUQACINBSI-UHFFFAOYSA-M 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/22—Activated sludge processes using circulation pipes
- C02F3/223—Activated sludge processes using circulation pipes using "air-lift"
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
본 발명은 오존을 이용하여 미생물의 증식을 촉진시키는 방법으로 주로 폐수처리에 활용된다. 축산폐수, 산업폐수 및 생활폐수 등을 미생물을 이용한 폐수처리가 널리 이용되고 있다. 이러한 미생물에 의한 폐수처리법은 미생물이 폐수의 유기물을 먹이로 증식하여 유기물이 감소하여 폐수가 맑은 물이 되는 원리이며 미생물에 의한 폐수처리는 미생물의 먹이인 폐수 중의 유기물이 계속 공급되어야 하고 미생물이 살기에 적합한 조건의 생활환경이 필요하다. 특히 먹이인 유기물이 소화능력 보다 많이 유입이 되며 폐수의 처리 시간이 많이 소요되거나, 지나치면 미생물이 사멸하는 경우도 있다. 이러한 미생물은 호기성 미생물을 이용된다. 폐수에는 용존산소가 필요량 보다 부족하여 공기로 폭기하여 산소의 공급을 증대하여 미생물의 증식에 필요한 산소를 공급하고 적당량의 유기물이 공급되어야 효율적인 폐수처리가 된다.The present invention is mainly used for wastewater treatment as a method of promoting the growth of microorganisms using ozone. Livestock wastewater, industrial wastewater and domestic wastewater are widely used for wastewater treatment using microorganisms. Wastewater treatment by microorganisms is the principle that microorganisms multiply organic matters in the wastewater to reduce the organic matters so that the wastewater becomes clear water. A living environment with suitable conditions is required. In particular, the organic matter that is fed is more than the digestive capacity, the waste water treatment takes a lot of time, or if the excess microorganisms may die. Such microorganisms utilize aerobic microorganisms. Waste water is less than the required amount of oxygen in the waste water by aeration to increase the supply of oxygen to supply the oxygen necessary for the growth of microorganisms and an appropriate amount of organic matter must be supplied for efficient wastewater treatment.
특히 산업폐수와 축산폐수와 같이 BOD(생물학적산소요구량) 농도가 6000ppm 이상 높은 고농도 유기물이 포함된 폐수는 호기성 미생물이 증식하기에 산소가 부족하고, 또 이미 폐수의 발생과정에서 혐기성화 하면 호기성 미생물에 해로운 독성이 형성되어 있어, 호기성 미생물이 증식하기에 부적합한 환경이 형성된다. 따라서 고농도의 유기물 폐수는 호기성 미생물에 의해서 폐수처리에 기술적인 어려움이 있다. 본 발명은 이러한 단점을 개선하기 위해서 오존을 사용하여 호기성 미생물 증식을 효과적으로 하는데 특징이 있다.In particular, wastewater containing high concentrations of organic matter with a high BOD (biological oxygen demand) concentration, such as industrial wastewater and livestock waste, lacks oxygen for aerobic microorganisms to grow, and if it is already anaerobic in the course of wastewater generation, Harmful toxicity has been formed, creating an environment that is unsuitable for the aerobic microorganism to multiply. Therefore, high concentration organic wastewater has a technical difficulty in wastewater treatment by aerobic microorganisms. The present invention is characterized by effectively using a ozone to aerobic microbial growth to improve this disadvantage.
본 발명에서 오존(O3)은 산소를 전기방전, 프라즈마, 화학분해, 자외선을 이용한 산소분해 등으로 만들어진다. 오존(O3)은 강력한 산화력으로 암모니아(NH3), 유화수소(H2S), 메탄(CH4) 등을 비롯한 각종 유기물질을 분해하고 또한 세균과 바이러스 등을 살균하는 능력은 널리 알려져 있다. 오존은 산소(O2)가 물에 용해되는 속도보다 약 20배 빠르게 용해되고 산소보다도 5,000배 빠르게 산화작용을 하여 물 속의 유기물을 산화시키고, 잔존 용존오존은 약25분의 반감기를 거친 후 스스로 용존산소로 환원된다. 오존을 활용하는 방법에 따라서 이로움과 해로움을 동시에 가지고 있는 양면성이 있다. 즉 살균되지 않는 정도의 용존오존(0.1ppm 이하) 농도에서는 호기성 미생물의 활동이 왕성하고, 반대로 용존오존의 농도를 0.15ppm 이상 차츰 증가하며, 각종 미생물이 사멸하는 독극수가 된다. 대부분 오존을 산화와 살균용도로 널리 사용되고 있다.In the present invention, ozone (O 3 ) is made of oxygen by electric discharge, plasma, chemical decomposition, oxygen decomposition using ultraviolet light and the like. Ozone (O 3 ) is known for its ability to decompose various organic materials including ammonia (NH 3 ), hydrogen sulfide (H 2 S), methane (CH 4 ), etc. with strong oxidizing power and to sterilize bacteria and viruses. . Ozone dissolves about 20 times faster than oxygen (O 2 ) dissolves in water and oxidizes 5,000 times faster than oxygen, oxidizing organic matter in water. The remaining dissolved ozone dissolves itself after a half-life of about 25 minutes. Reduced to oxygen. Depending on how ozone is used, there are two sides that have both benefits and harm. In other words, at the concentration of dissolved ozone (0.1 ppm or less), the activity of aerobic microorganisms is vigorous, and on the contrary, the concentration of dissolved ozone is gradually increased by 0.15 ppm or more, resulting in poisonous water that kills various microorganisms. Most ozone is widely used for oxidation and sterilization.
폐수를 저농도의 오존가스(2-10ppm)로 폭기하여 용존오존농도가 0.08ppm 이하로 유지하면 용존오존은 폐수 속의 유기물이 산화되고, 특히 난 분해성 물질도 분해가 쉬운 상태로 산화시키고, 혐기성분해에 의해 독성이 생성된 물질도 산화가 이루어져 미생물이 먹을 수 있는 유기물로 분해된다. 또한 용존오존은 용존산소로 환원되어 호기성 미생물에 용존산소를 공기폭기 보다 더욱 빠르게 공급하여 호기성 미생물의 활동이 더욱 왕성해 진다. 이러한 호기성 미생물의 활동이 왕성하고 증식이 촉진되어 폐수 속의 유기물은 급속히 소화된다. 용존오존의 농도에 따른 미생물의 활동과 사멸은 표와 같다.When the wastewater is aerated with low concentration of ozone gas (2-10ppm) and the dissolved ozone concentration is kept below 0.08ppm, the dissolved ozone oxidizes organic matter in the wastewater. Toxic substances are also oxidized and decomposed into organic matter that microbes can eat. In addition, dissolved ozone is reduced to dissolved oxygen, which supplies dissolved oxygen to aerobic microorganisms faster than air aeration, resulting in more active aerobic microorganisms. The activity of these aerobic microorganisms is vigorous and the growth is promoted, and organic matter in wastewater is rapidly digested. The activity and killing of microorganisms according to the dissolved ozone concentrations are shown in the table.
미생물을 고농도의 용존오존으로부터 보호하기 위해서 용존오존을 자동측정 및 자동제어 하여 미생물에 안전하게 오존발생기를 운전하도록 한다.In order to protect microorganisms from high concentration of dissolved ozone, dissolved ozone is measured and controlled automatically to operate ozone generator safely.
오존에 의한 유기물의 반응메커니즘은 오존과 유기물이 결합하여 오조나이드를 형성시킨 후 알데히드(Aldehyde)와 단순 유기물류로 분해되는 기작이다. 즉 전자친화력이 매우 크기 때문에 다양한 종류의 유기물과 유기금속 관능기류의 고리에 작용하여 저분자 물질을 생성시킨다 오존과 유기물의 반응속도에 영향을 주는 인자는 PH, 압력, 온도, 유기물 종류 및 오존 주입량 등이며 이중 가장 중요한 인자는 PH인데 PH조건에 따라 오존은 유기물과 직.간접적으로 반응을 일으키고 유기물 제거 속도에 영향을 미친다The reaction mechanism of organic matter by ozone is a mechanism in which ozone and organic matter combine to form ozonide and then decompose into aldehyde and simple organic matter. In other words, because of its high electron affinity, it acts on the rings of various organic and organometallic functional groups to produce low-molecular substances. Factors affecting the reaction rate of ozone and organic matter are PH, pressure, temperature, type of organic substance and amount of ozone injection. The most important factor is PH. Ozone reacts directly or indirectly with organic matter and affects organic removal rate depending on PH conditions.
도1은 본 발명의 바람직한 실시 예를 나타낸 개략도.1 is a schematic view showing a preferred embodiment of the present invention.
(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols on the main parts of drawing
(1) 오존발생기 (2) 폭기조(1) ozone generators (2) aeration tanks
(3) 폐수 (4) 저농도오존가스배관(3) Wastewater (4) Low concentration ozone gas piping
(5) 폭기장치 (6) 기포(5) Aerator (6) Bubble
(7) 용존오존측정센서 (8) 용존오존측정자동제어장치(7) Dissolved ozone measuring sensor (8) Automatic dissolved ozone measuring device
(9) 부로아 (10) 부로아공기배관(9) Blowing Air (10) Blowing Air Piping
(11) 고농도오존가스배관 (12) 센서연결선(11) High concentration ozone gas piping (12) Sensor connection line
(13) 연결선 (14) COD측정자동제어장치(13) Connection line (14) Automatic COD measurement
(15) COD측정센서(15) COD measuring sensor
본 발명의 바람직한 실시 예를 첨부된 도1을 참조하여 상세히 설명한다. 하기의 설명에서는 본 발명에 따른 동작을 이해하는데 필요한 부분만 설명하며 그 이외 부분의 설명은 본 발명의 요지를 흩트리지 않도록 생략될 것이라는 것을 유의하여야 한다.A preferred embodiment of the present invention will be described in detail with reference to FIG. 1. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.
폐수를 공기로 폭기하는 폭기조(2) 주변에 오존발생기(1)와 부로아(9)가 위치하고 폭기조(2)에는 폭기장치(5)가 설치되며 폭기장치(5)는 저농도오존가스배관(4)과 연결되며 저농도오존가스배관(4)는 부로아(9)의 공기를 배송하는 부로아공기배관(10)과 연결되며, 또한 저농도오존가스배관(4)은 오존발생기(1)에서 생산된 고농도 오존이 배송되는 고농도오존가스배관(11)과 연결되어 오존발생기(1)에서 생산된 고농도 오존이 부로아(9)의 일반 공기와 희석되어 2-10ppm의 저농도 오존가스가 되어 폭기장치(5)를 통해 폐수(3)에 기포(6)의 형태로 발생되면서 오존과 공기 중의 산소가 동시에 폐수에 용해되도록 한다. 또한 폭기조(2)에는 용존오존을 측정하는 용존오존측정센서(7)가 설치되고 용존오존측정센서(7)은 용존오존측정자동제어장치(8)과 센서연결선(12)로 연결되며 용존오존측정자동제어장치(8)는 오존발생기(1)과 연결되어 자동제어기능에 의해서 오존발생기(1)의 운전이 자동으로 제어된다. 또한 폭기조(2)에는 COD(화학적산소요구량)측정센서(15)가 설치되어 COD측정자동제어장치(14)와 연결되며 COD측정자동제어장치(14)는 오존발생기(1)과 연결되어 오존발생기(1) 운전을 각각 자동제어 한다.An ozone generator (1) and a boroa (9) are located around the aeration tank (2) for aeration of the waste water with air, and an aeration device (5) is installed in the aeration tank (2), and the aeration device (5) has a low concentration ozone gas pipe (4). The low concentration ozone gas pipe (4) is connected to the boro air pipe (10) for delivering air from the boro (9), and the low concentration ozone gas pipe (4) is produced in the ozone generator (1) The high concentration ozone produced by the ozone generator 1 is connected to the high concentration ozone gas pipe 11 to which the high concentration ozone is delivered, and is diluted with the general air of the broroa 9 to give a low concentration ozone gas of 2-10 ppm. ) Is generated in the form of bubbles (6) in the wastewater (3) to be dissolved in the wastewater ozone and oxygen in the air at the same time. In addition, the aeration tank (2) is installed with a dissolved ozone measuring sensor (7) for measuring the dissolved ozone, the dissolved ozone measuring sensor (7) is connected to the dissolved ozone measuring automatic control device (8) and the sensor connection line 12, the dissolved ozone measurement The automatic control device 8 is connected to the ozone generator 1 so that the operation of the ozone generator 1 is automatically controlled by the automatic control function. In addition, the aeration tank 2 is equipped with a COD (chemical oxygen demand) measuring sensor 15 is connected to the COD measurement automatic control device 14, the COD measurement automatic control device 14 is connected to the ozone generator 1 to the ozone generator (1) Automatically control each operation.
본 장치의 운전의 실례를 들어 설명한다. 폭기조(2)의 폐수(3)에 부로아(9)의 운전으로 공기가 공급되어 폭기가 일어나며, 또한 폭기조(2)에 설치된 용존오존측정센서(7)에 의해서 폐수의 용존오존농도를 감지하여 용존오존측정자동제어장치(8)에 농도가 ppm 단위로 표시된다. 용존오존측정자동제어장치(8)의 자동운전 값을 0.08ppm 이하로 설정하며, 용존오존측정센서(7)은 폐수의 용존오존농도를 연속으로 측정하여 용존오존측정자동제어장치(8)에 농도가 표시되고 측정값이 0.08ppm 이하의 조건일 때는 오존발생기(1)을 가동시켜 오존이 생산되어 고농도오존가스배관(11)을 통해 부로아공기배관(10)과 합류되고 고농도의 오존은 저농도로 희석되어 저농도오존가스배관(4)을 거쳐 폭기장치(5)에서 미세한 기포(6)로 방출되어 용해된다. 용해된 용존오존은 0.08ppm 미만을 지속적으로 유지하고 이러한 저농도의 용존오존에 의해서 유기물은 산화되고 또한 난 분해성 고분자 유기물도 저분자로 분해되어 미생물이 소화할 수 있는 상태가 되는 동시에 미생물의 활동이 더욱 왕성하여 유기물을 소화하게된다.An example of operation of this apparatus is demonstrated. Air is supplied to the wastewater 3 of the aeration tank 2 by the operation of the boroa 9 and aeration occurs. Also, the dissolved ozone concentration of the wastewater is sensed by the dissolved ozone measuring sensor 7 installed in the aeration tank 2. The dissolved ozone measuring automatic control device 8 displays the concentration in ppm. The automatic operation value of the dissolved ozone measurement automatic control device 8 is set to 0.08 ppm or less, and the dissolved ozone measurement sensor 7 continuously measures the dissolved ozone concentration of the wastewater and the concentration of the dissolved ozone measurement automatic control device 8 Is displayed and the measured value is 0.08ppm or less, the ozone is produced by operating the ozone generator (1) and joined with the boro air pipe (10) through the high concentration ozone gas pipe (11). It is diluted and discharged as fine bubbles 6 from the aeration device 5 via the low concentration ozone gas pipe 4 and dissolved. Dissolved dissolved ozone is maintained at less than 0.08 ppm continuously, and organic matter is oxidized by low concentration of dissolved ozone, and low-decomposable high molecular weight organic matter is decomposed into low molecules to be digested by microorganisms. By digesting organics.
특히 혐기화가 진행된 축산폐수를 기존의 방법인 일반공기만으로 폭기하여 미생물 처리 시 폐수는 BOD는 40ppm 이하로 되었으나 난 분해물질로 인해 색도는 암갈색으로 개선이 미흡하였다. 그러나 오존을 상기의 방법으로 주입하면 오존에 의해서 난 분해물질이 분해되고 미생물의 활동이 왕성하여 BOD 개선과 색도도 투명하게 개선되었으며, 폐수의 처리량이 일반 공기 폭기 때 보다 처리용량이 증가하였다. 폐수처리의 효율은 오존에 의한 미생물의 활동성과 비례한다. 용존오존농도가 0.05ppm으로 폐수처리 시 2배의 효율을 나며, 0.08ppm에서는 3배로 증가하였다. 따라서 폐수의 발생량이 갑자기 약 2-3배 증가하여도 무처리 방류되지 않고도 전량 처리가 가능하게 되었다. 반대로 폐수와 함께 유입되는 유기물이 부족할 때는 미생물의 활동을 줄이기 위해서 오존발생기(1)의 운전을 동시에 줄여야 한다. 이는 폐수의 BOD나 COD을 측정하여 용존오존측정자동제어장치(8)에 설정 용존오존농도를 조정하거나 또는 COD자동측정센서(15)와 COD측정자동제어장치(14)에 의해서 유기물의 량에 따라 오존발생기(1)의 운전이 자동제어 되도록 한다.In particular, the anaerobic livestock wastewater was aerated with only conventional air, and the wastewater was 40ppm or less when treated with microorganisms, but the color was not improved to dark brown due to difficult decomposition products. However, when ozone is injected in the above manner, the decomposition of egg decomposition products by ozone is decomposed and the activity of microorganisms is enhanced, so that the BOD improvement and the chromaticity are also transparently improved, and the throughput of waste water is increased compared to that of the normal air aeration. The efficiency of wastewater treatment is proportional to the activity of microorganisms by ozone. Dissolved ozone concentration was 0.05ppm, which was twice as efficient in wastewater treatment, and 0.08ppm was tripled. Therefore, even if the amount of wastewater suddenly increased about 2-3 times, the entire amount of treatment can be performed without being discharged untreated. On the contrary, when the organic matter introduced with the waste water is insufficient, the operation of the ozone generator 1 should be simultaneously reduced to reduce the activity of microorganisms. It measures the BOD or COD of the waste water and adjusts the dissolved ozone concentration set in the dissolved ozone measurement automatic control device 8 or according to the amount of organic matter by the COD automatic measurement sensor 15 and the COD automatic control device 14. The operation of the ozone generator (1) is to be automatically controlled.
폭기조와 오존이 통과하는 배관 및 폭기장치는 일반적으로 구매 가능한 제품 또는 구축물이며 강력한 오존 산화력에 견디는 재료로 제작된 것이어야 한다Pipes and aerators through which the aeration tank and ozone pass are generally available commercially available products or constructs and must be made of materials that resist strong ozone oxidation.
종전의 폐수를 미생물에 의한 처리 시, 이미 폐수가 혐기성화가 진행되어 호기성 미생물이 살기에 부적합한 환경이거나 또는 축산폐수와 같이 고농도의 폐수를 미생물 처리하는데 기술적인 어려움이 있었다, 그리고 폐수가 갑자기 일시에 대량으로 발생하였을 때는 모두 처리하지 못하여 일부만 처리되고 나머지는 방류되는 사례가 많았다. 그러나 본 발명의 오존으로 난 분해성 유기물과 혐기성화가 진행된 폐수까지 호기성 미생물이 소화하기에 적합한 상태 분해하고 또한 호기성 미생물의 활동을 왕성하게 하여 폐수처리의 효율을 향상시켰다.When conventional wastewater is treated with microorganisms, the wastewater has already undergone anaerobic treatment, which is not suitable for aerobic microorganisms, or there are technical difficulties in treating microorganisms in high concentrations of wastewater such as livestock wastewater. When it occurred, most of them could not be processed and only part of them were processed and the rest were discharged. However, the ozone of the present invention decomposes in a state suitable for digestion of aerobic microorganisms to difficult-decomposable organic matter and anaerobic wastewater, and also enhances the activity of aerobic microorganisms, thereby improving the efficiency of wastewater treatment.
특히 오존에 의해서 폐수처리의 효율 향상은 갑자기 일시에 많이 발생하는 폐수를 무처리 방류하지 않고 전량을 효과적으로 처리할 수 있어 유사시의 대비 능력이 향상되었으며 폐수처리장의 처리능력 향상을 실현하였다.In particular, the improvement of the efficiency of wastewater treatment by ozone can effectively treat the whole amount of wastewater without suddenly discharging the wastewater, which is generated suddenly at a time, thereby improving the preparedness in case of emergency and improving the treatment capacity of the wastewater treatment plant.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100484927B1 (en) * | 2002-07-04 | 2005-04-20 | (주) 대성이앤비 | Apparatus and method for purificating of closed water area |
| US20110259832A1 (en) * | 2008-07-29 | 2011-10-27 | Veolia Water Solutions & Technologies Support | Method and plant for the treatment of wastewater with a view to eliminating the adverse endocrine effect and/or the toxic or genotoxic effect thereof |
| US20150218011A1 (en) * | 2012-08-10 | 2015-08-06 | Xyelm Water Solutions Zelienople LLC | Method and Apparatus for Monitoring and Controlling Ozonation and Aerated Filtration Using UV and Visible Spectral Measurement and Oxidation Reduction Potential |
| CN117720194A (en) * | 2023-12-18 | 2024-03-19 | 江苏蓝必盛化工环保股份有限公司 | An energy-saving and efficient treatment device and method for biochemical effluent |
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2001
- 2001-05-08 KR KR1020010025640A patent/KR20010078879A/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100484927B1 (en) * | 2002-07-04 | 2005-04-20 | (주) 대성이앤비 | Apparatus and method for purificating of closed water area |
| US20110259832A1 (en) * | 2008-07-29 | 2011-10-27 | Veolia Water Solutions & Technologies Support | Method and plant for the treatment of wastewater with a view to eliminating the adverse endocrine effect and/or the toxic or genotoxic effect thereof |
| US9150432B2 (en) * | 2008-07-29 | 2015-10-06 | Veolia Water Solutions & Technologies Support | Method and plant for the treatment of wastewater with a view to eliminating the adverse endocrine effect and/or the toxic or genotoxic effect thereof |
| US20150218011A1 (en) * | 2012-08-10 | 2015-08-06 | Xyelm Water Solutions Zelienople LLC | Method and Apparatus for Monitoring and Controlling Ozonation and Aerated Filtration Using UV and Visible Spectral Measurement and Oxidation Reduction Potential |
| US9365437B2 (en) * | 2012-08-10 | 2016-06-14 | Xylem Water Solutions Zelienople Llc | Method and apparatus for monitoring and controlling ozonation and aerated filtration using UV and visible spectral measurement and oxidation reduction potential |
| CN117720194A (en) * | 2023-12-18 | 2024-03-19 | 江苏蓝必盛化工环保股份有限公司 | An energy-saving and efficient treatment device and method for biochemical effluent |
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