KR20010003936A - Advanced Sewage and Wastewater Treatment Process using the Autotrophic Denitrifiers - Google Patents
Advanced Sewage and Wastewater Treatment Process using the Autotrophic Denitrifiers Download PDFInfo
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- KR20010003936A KR20010003936A KR1019990024472A KR19990024472A KR20010003936A KR 20010003936 A KR20010003936 A KR 20010003936A KR 1019990024472 A KR1019990024472 A KR 1019990024472A KR 19990024472 A KR19990024472 A KR 19990024472A KR 20010003936 A KR20010003936 A KR 20010003936A
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- wastewater
- denitrification
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- sedimentation basin
- nitrification
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000010865 sewage Substances 0.000 title claims abstract description 9
- 238000004065 wastewater treatment Methods 0.000 title abstract description 5
- 230000001651 autotrophic effect Effects 0.000 title abstract 2
- 239000002351 wastewater Substances 0.000 claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 244000005700 microbiome Species 0.000 claims abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims abstract description 7
- 235000019738 Limestone Nutrition 0.000 claims abstract description 5
- 239000006028 limestone Substances 0.000 claims abstract description 5
- 235000015097 nutrients Nutrition 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 241000894006 Bacteria Species 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 3
- 239000001301 oxygen Substances 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims 1
- 230000001546 nitrifying effect Effects 0.000 claims 1
- 235000016709 nutrition Nutrition 0.000 claims 1
- 239000006228 supernatant Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 241000605118 Thiobacillus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/345—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for biological oxidation or reduction of sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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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)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
본 발명은 하,폐수 내에 존재하는 질소를 제거하기 위하여 외부탄소원을 대체시키서 유지관리 비용을 절감시킬수 있는 황탈질 독립 영양미생물을 이용한 하,폐수 고도처리 방법에 관한 것으로 1차 침전지 유출수 또는 침사지 유출수 등의 유입수(1)가 질산화조(2)에서 공기배관(3)을 통해 산기관(4)으로 주입된 산소로 인해 호기적 반응으로 질산화를 유도시키고 침전지(5)에서 침전된 하부 슬러지 중의 일부는 질산화액 반송배관(6)으로 질산화조(2)로 반송시켜 미생물 농도를 조절하고 나머지는 슬러지 폐기배관(7)을 통해 배출시키며 황탈질 반응시 알카리도가 소모되면 침전지(5) 전단의 석회석 주입장치(11)로 알카리도 보충과 인제거를 병행시키고 침전지(5)에서 가압펌프(9)로 상향류 황탈질조(8)로 주입하여 황입자(10)의 표면에 부착된 황탈질균에 의하여 탈질되는 것을 특징으로 하는 황탈질 독립 영양미생물을 이용한 하,폐수 고도처리 방법.The present invention relates to a method for advanced treatment of sewage and wastewater using a denitrified independent nutrient microorganism capable of reducing maintenance costs by replacing external carbon sources to remove nitrogen present in sewage and wastewater. Part of the lower sludge precipitated in the sedimentation basin (5) induces nitrification in an aerobic reaction due to oxygen injected into the diffuser (4) from the nitrification tank (2) through the air pipe (3) The nitric oxide conveying pipe (6) is returned to the nitrification tank (2) to control the concentration of microorganisms and the remainder is discharged through the sludge waste pipe (7), when the alkalinity is consumed during the denitrification reaction, limestone injection at the front of the sedimentation basin (5) Alkaline replenishment and phosphorus removal were performed in parallel with the apparatus 11 and injected into the upstream denitrification tank 8 from the sedimentation basin 5 to the pressurized pump 9 by the denitrifying bacteria adhered to the surface of the sulfur particles 10. And, high wastewater treatment method using a sulfur denitrifying autotrophic micro-organisms characterized in that the NO x removal.
Description
본 발명은 하,폐수 내에 존재하는 질소를 제거하기 위하여 외부탄소원을 대체시키서 유지관리 비용을 절감시킬 수 있는 황탈질 독립 영양미생물을 이용한 하,폐수 고도처리 방법에 관한 것이다.The present invention relates to a high sewage and wastewater treatment method using a denitrified independent nutrient microorganism capable of reducing maintenance costs by replacing external carbon sources to remove nitrogen present in sewage and wastewater.
일반적으로 여러 선진국들은 수 백년전부터 자국의 특성에 적당한 하,폐수 처리방법을 개발하였고 그 경험과 기술을 토대로 세계각국의 환경시장을 공략하고 있으며 이러한 무수한 외국공법들이 도입되고 있는 실정이나 유입수의 성상이 국가별로 현저하게 상이한 관계로 그 국가의 현실에 맞도록 개량하고 적용하는 데에는 많은 경제적,시간적 손실이 초래되었다.In general, many developed countries have developed wastewater and wastewater treatment methods suitable for their characteristics for hundreds of years, and based on their experience and technology, they have been targeting the environmental market of various countries. Significantly different relationships have resulted in many economic and time losses in adapting and adapting to the reality of the country.
종래에는 하,폐수를 처리하기 위하여 외부탄소원을 사용하였으며 외부탄소원으로 사용되는 메탄올,아세트산 등을 투여하는 전탈질 및 후탈질 공정을 이용한 하,폐수 처리장치는 약품비가 과다하게 소요되고 원수 성상 변화에 따라 과량 주입될 경우 유출수로 인해 수질을 악화(오염)시킬 수 있으며 4단계 또는 5단계 바덴포(4-Stage or 5-Stage Bardenpho)공정과 같이 부가적인 처리시설 등이 소요되는 문제점이 있었다.Conventionally, an external carbon source is used to treat sewage and wastewater, and a sewage and wastewater treatment apparatus using pre-denitrification and post-denitrification processes in which methanol, acetic acid, etc., used as an external carbon source is used, requires excessive chemical costs and changes in raw water properties. As a result, when excessively injected, the water quality may be deteriorated (contamination) due to the effluent, and additional treatment facilities such as the 4-stage or 5-stage Bardenpho process are required.
따라서 본 발명은 상기한 종래의 문제점을 개선하기 위한 목적으로 창출된 것으로 황탈질 미생물(Thiobacillus 계통)이 질산화액을 탈질시키는 과정에 있어 전자공여체로서 종래에 사용되어온 외부탄소원(메탄올,아세트산 등) 대신 황화합물(S2-,S,S2O3 2-,S4O6 2-,SO3 2-)을 SO4 2-로 산화시키면서 NO3 -를 질소가스로 전환시키는 원리를 응용한 것으로 관련된 반응식은 아래와 같다.Therefore, the present invention was created for the purpose of improving the above-mentioned conventional problems. Instead of external carbon sources (methanol, acetic acid, etc.) that have been used as electron donors in the process of denitrifying microorganisms (Thiobacillus strains) for denitrifying nitric oxide, The application of the principle of converting NO 3 - into nitrogen gas while oxidizing sulfur compounds (S 2- , S, S 2 O 3 2- , S 4 O 6 2- , SO 3 2- ) to SO 4 2- The scheme is shown below.
NO3 -+ 1.1OS + 0.40CO2+ 0.76H2O +0.08NH4 +→ NO 3 - + 1.1OS + 0.40CO 2 + 0.76H 2 O + 0.08NH 4 + →
0.5N2+ 1.10SO4 2-+ 1.28H++ 0.08C5H7O2N0.5N 2 + 1.10SO 4 2- + 1.28H + + 0.08C 5 H 7 O 2 N
상기와 같이 본 발명은 전자수용체를 NO3 -을 이용하고 에너지원으로 황을 사용하여 질소가스를 생성시키는 방법으로 ,산생성 반응이므로 수중에 있는 알카리도를 소모하며 이 경우에는 석회석 등을 황과 함께 충진하여 알카리도를 보충시킬 수 있게한 것으로 하,폐수를 처리할수 있는 방법을 제공할수 있는 것이다.As described above, the present invention is a method of generating nitrogen gas using the electron acceptor NO 3 - and using sulfur as an energy source, so it is an acid-producing reaction and consumes alkalinity in the water, in this case limestone and the like with sulfur It is possible to replenish alkaline by filling it, and to provide a way to treat wastewater.
도 1 은 본 발명의 상향류식 황탈질 공정 모식도1 is a schematic diagram of the upflow desulfurization process of the present invention
도 2 는 본 발명의 하향류식 황탈질 공정 모식도Figure 2 is a schematic diagram of the downflow desulfurization process of the present invention
도 3 은 본 발명의 pH조정조가 포함된 상향류식 황탈질 공정 모식도Figure 3 is a schematic diagram of the upflow type denitrification process containing a pH adjustment tank of the present invention
도 4 는 본 발명의 유출수 내부순환 배관이 설치된 본 상향류식 황탈질 공정 모식도Figure 4 is a schematic diagram of the present upflow desulfurization process is installed the effluent internal circulation pipe of the present invention
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
(1) 유입수 (2) 질산화조(1) Influent (2) Nitrifier
(3) 공기배관 (4) 산기관(3) air piping (4) diffuser
(5) 침전지 (6) 질산화액 반송배관(5) Sedimentation basin (6) Nitric oxide return piping
(7) 슬러지 폐기배관 (8) 황탈질조(7) sludge waste piping (8) denitrification tank
(9) 가압펌프 (10) 황입자(9) Pressurized pumps (10) Sulfur particles
(11) 석회석 주입장치 (12) 역세라인(11) Limestone injection device (12) Backwashing line
(13) pH 조정조 (14) 유출수(13) pH adjusting tank (14) Effluent
(15) 유출수 내부순환 배관(15) effluent internal circulation pipe
이하 발명의 요지를 첨부된 도면에 연계시켜 그 구성과 작용을 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.
도 1 은 본 발명의 상향류식 황탈질 공정 모식도이고,도 2 는 본 발명의 하향류식 황탈질 공정 모식도이고,도 3 은 본 발명의 pH조정조가 포함된 상향류식 황탈질 공정 모식도이며,도 4 는 본 발명의 유출수 내부순환 배관이 설치된 본 상향류식 황탈질 공정 모식도이다.1 is a schematic diagram of an upflow desulfurization process of the present invention, Figure 2 is a schematic diagram of a downflow desulfurization process of the present invention, Figure 3 is a schematic diagram of an upflow desulfurization process including a pH adjustment tank of the present invention, Figure 4 is Schematic diagram of this upflow type denitrification process is installed the effluent internal circulation pipe of the present invention.
도 1 에서와 같이 본 발명은 1차 침전지 유출수 또는 침사지 유출수 등의 유입수(1)가 질산화조(2)에서 공기배관(3)을 통해 산기관(4)으로 주입된 산소의 호기적 반응에 의하여 질산화를 유도시키고 침전지(5)의 하부 슬러지 중의 일부는 미생물 농도조절을 위하여 질산화액 반송배관(6)을 이용하여 질산화조(2)로 반송하고 나머지는 슬러지 폐기배관(7)을 통해 배출시키며 황탈질 반응시 알카리도가 소모되고 인규제가 엄격해지는 현실에서 침전지(5) 전단에 석회석 주입장치(11)로 알카리도를 보충과 인제거를 병행시켰으며 침전지(5)에서 유출수가 가압펌프(9)에 의하여 상향류 황탈질조(8)로 주입되면 황입자(10)의 표면에 부착된 황탈질균에 의하여 탈질되는 것이다.As shown in FIG. 1, the present invention is characterized by the aerobic reaction of oxygen injected into the diffuser (4) through the air pipe (3) from the nitrification tank (2) to the inlet water (1) Some of the lower sludge in the sedimentation basin (5) to induce nitrification and return to the nitrification tank (2) using the nitric oxide return pipe (6) for controlling the concentration of microorganisms and the rest is discharged through the sludge waste pipe (7) Alkaline is consumed during denitrification and phosphorus is strictly regulated. Limestone injector 11 is added to the sedimentation basin (5) at the front of the sedimentation basin to supplement alkali and phosphorus removal. When injected into the upstream denitrification tank (8) is to be denitrated by the denitrification bacteria attached to the surface of the sulfur particles (10).
그리고 반응속도의 관점에서 분말형태의 황이 유효하나 유지관리 측면에서는 쇄석상태가 유리하다.In terms of reaction rate, sulfur in powder form is effective, but crushed stone is advantageous in terms of maintenance.
도 2 에서는 상기한 상향류식 황탈질 공정과 동일하나 황탈질조(8)의 유입방향이 상부에서 하부로 진행하는 하향류식 황탈질 공정인 관계와 수리학적 구배를 고려한다면 자연유하에 의한 방법으로 가압펌프(9)를 생략할수 있는 점의 차이가 있다.2 is the same as the upflow denitrification process described above, but considering the relationship and hydraulic gradient of the inflow direction of the denitrification tank 8 is a downflow denitrification process proceeding from the top to the bottom pressure by natural methods There is a difference in that the pump 9 can be omitted.
도 3 에서는 알카리도 보충물질의 충진이 적절하지 않을 경우 황탈질조(8)의 후단에 pH 조정조(13)를 두고 조정된 처리수를 사용하여 역세라인(12)으로 역세하는 장치가 포함된 황탈질 공정이다.In FIG. 3, denitrification including an apparatus for backwashing the backwash line 12 using the treated water having the pH adjusting tank 13 placed at the rear end of the denitrification tank 8 when the filling of the alkaline supplement material is not appropriate is performed. It is a process.
도 4 에서는 유출수(14) 중에 존재하는 황화합물의 재이용을 위하여 유출수 내부순환 배관(15)을 설치하여 황입자의 손실을 방지할수 있는 황탈질 공정이다.In Figure 4 is a desulfurization process that can prevent the loss of sulfur particles by installing the effluent internal circulation pipe 15 for reuse of sulfur compounds present in the effluent (14).
상기한 종래의 방법인 외부탄소원을 메탄올을 주입하는 5단계 바덴포 공정과 본 발명의 황탈질 공정을 비교 운영시 1g의 NO3 --N를 처리하기 위한 약품비용을 단순 비교하면 각각 1.566원과 0.750원으로 본 발명의 황탈질 공정이 약품비를 절감시킬수 있어 유지관리 비용을 절감시키는 효과가 있으며 외부탄소원을 대체함으로 수질오염을 완화시킬수 있고 하,페수 내에 존재하는 질소를 효율적으로 처리할수 있는 등의 효과가 있는 것이다.Compared with the conventional 5-step Badenpo process injecting methanol to the external carbon source and the denitrification process of the present invention, the chemical costs for treating 1 g of NO 3 -- N are simply 1.566 won and 0.750 won, the denitrification process of the present invention can reduce the chemical cost, thereby reducing the maintenance cost, and can replace the external carbon source to mitigate water pollution, and to efficiently treat the nitrogen present in the waste water, etc. It works.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019990024472A KR20010003936A (en) | 1999-06-26 | 1999-06-26 | Advanced Sewage and Wastewater Treatment Process using the Autotrophic Denitrifiers |
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| KR1019990024472A KR20010003936A (en) | 1999-06-26 | 1999-06-26 | Advanced Sewage and Wastewater Treatment Process using the Autotrophic Denitrifiers |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010055891A (en) * | 1999-12-13 | 2001-07-04 | 김형벽ㅂ | Post-Denitrification Device of Conventional Activated Sludge Process Using Sulfur |
| KR20020029738A (en) * | 2000-10-13 | 2002-04-19 | 김효근 | Biological denitrification process using sulfur for the wastewater containing low BOD |
| KR100362742B1 (en) * | 2000-01-27 | 2002-11-30 | 정호봉 | Livestock wastes and high density nitrogen water wastes nitrogen remove method |
| KR100431394B1 (en) * | 2002-03-21 | 2004-05-14 | 한국과학기술연구원 | In-situ and Ex-situ Remediation of Groundwater and Remediation of Meander filtrate Water Using Autotrophic Sulfur Oxidizing Bacteria |
-
1999
- 1999-06-26 KR KR1019990024472A patent/KR20010003936A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010055891A (en) * | 1999-12-13 | 2001-07-04 | 김형벽ㅂ | Post-Denitrification Device of Conventional Activated Sludge Process Using Sulfur |
| KR100362742B1 (en) * | 2000-01-27 | 2002-11-30 | 정호봉 | Livestock wastes and high density nitrogen water wastes nitrogen remove method |
| KR20020029738A (en) * | 2000-10-13 | 2002-04-19 | 김효근 | Biological denitrification process using sulfur for the wastewater containing low BOD |
| KR100431394B1 (en) * | 2002-03-21 | 2004-05-14 | 한국과학기술연구원 | In-situ and Ex-situ Remediation of Groundwater and Remediation of Meander filtrate Water Using Autotrophic Sulfur Oxidizing Bacteria |
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