KR19980077862A - Industrial wastewater denitrification and purification - Google Patents
Industrial wastewater denitrification and purification Download PDFInfo
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- KR19980077862A KR19980077862A KR1019970015144A KR19970015144A KR19980077862A KR 19980077862 A KR19980077862 A KR 19980077862A KR 1019970015144 A KR1019970015144 A KR 1019970015144A KR 19970015144 A KR19970015144 A KR 19970015144A KR 19980077862 A KR19980077862 A KR 19980077862A
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- wastewater
- industrial wastewater
- nitrogen
- experiment
- chloride
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- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 7
- 238000000746 purification Methods 0.000 title 1
- 239000002351 wastewater Substances 0.000 claims abstract description 19
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 244000144972 livestock Species 0.000 claims abstract 2
- 238000004043 dyeing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910001510 metal chloride Inorganic materials 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 210000003608 fece Anatomy 0.000 claims description 2
- 239000010871 livestock manure Substances 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- 150000001805 chlorine compounds Chemical class 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract description 4
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010985 leather Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229960002089 ferrous chloride Drugs 0.000 abstract 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 11
- 230000005587 bubbling Effects 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 241000195628 Chlorophyta Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
본 발명은 질산성 질소와 암모니아성 질소를 포함하는 염색폐수, 축산폐수와 피혁폐수를 비롯한 모든 산업폐수의 총질소(TN), 색도, COD, BOD 및 분산고체(SS) 제거률을 70∼90%이상 제거시키는 신기술이다.The present invention is to remove the total nitrogen (TN), color, COD, BOD and dispersed solids (SS) removal rate of all industrial wastewater, including dye wastewater, livestock wastewater and leather wastewater containing nitrate nitrogen and ammonia nitrogen It is a new technology that removes more than%.
이 발명에서는 염화제 2철, PAC와 염화 제일철 등 금속의 염화물 고체분말이나 수용액을 염색폐수에 1,000∼2,000ppm을 넣고 6∼12V의 전압으로 전기분해하여 앞에서 언급한 산업폐수들을 정화처리하는 기술이다.In the present invention, the above-mentioned industrial wastewater is purified by electrolyzing 1,000-2,000 ppm of chloride solid powder or aqueous solution of metals such as ferric chloride, PAC and ferrous chloride at a voltage of 6-12V. .
Description
본 발명은 제직시 아크릴호제를 사용하거나 염색할 때 조염제로 사용하고 황산암모늄을 계면활성제를 포함하는 세척제를 사용하는 염색폐수나 암모니아성 질소를 대량 함유하고 있는 분뇨나 축산폐수아미노산의 펨타이드 결합으로 이루어져 있는 단백질을 다량 함유하고 있는 피혁 폐수와 같은 산업폐수의 총질소(total nitrogen,TN)를 크게 감량시키기 위하여 염화 제 2철과 같은 금속의 염화물을 이들 산업폐수에 넣고 전기분해하는 기술에 관한 것이다.The present invention uses femide bonds of manure or animal wastewater amino acids containing a large amount of dyeing wastewater or ammonia nitrogen, which are used as a dyeing agent when weaving or dyeing acrylics, and using ammonium sulfate as a cleaning agent containing a surfactant. In order to significantly reduce the total nitrogen (TN) of industrial wastewater such as leather wastewater containing a large amount of protein, a technique of electrolyzing chloride of metal such as ferric chloride into these industrial wastewater will be.
질소나 인은 미생물의 중요한 먹이로 이용되고 있으나 암모니아성 질소와 질산성 질소를 합한 총질소(TN)와 인(P)의 수중 함량이 과다하고 수온이 증가하면 땜, 호수 및 강에서는 녹조가 일어나고 염분이 많은 연근해에서는 적조현상이 일어나 민물 양식이나 바다양식에 막대한 피해를 끼치게 된다.Nitrogen or phosphorus is used as an important food for microorganisms, but when the water content of total nitrogen (TN) and phosphorus (P) combined with ammonia nitrogen and nitrate nitrogen is excessive and the water temperature increases, green algae occur in solders, lakes and rivers. In salty offshore waters, red tide occurs, causing enormous damage to freshwater and ocean farming.
녹조와 적조현상을 방지하기 위해서는 총질소를 규제하여야 하기때문에 우리나라에서도 금년하반기부터 TN을 60 ppm으로 총량 규제하게 되었다.In order to prevent green algae and red tide, the total nitrogen must be regulated, so in Korea, the total amount of TN has been regulated to 60 ppm since the second half of this year.
그러나 현재까지 효과적이고 경제적인 TN 규제방법이 개발되지 않았다. 다만 호기성 포기조와 혐기성 포기조를 병행설치하여 TN을 낮추는 방법은 개발되었으나 막대한 설비비용과 기술적인 애로점 때문에 국내외적으로 극히 제한된 산업현장에서만 사용되고 있는 실정이다.However, no effective and economic method of TN regulation has been developed to date. However, the method of lowering the TN by installing aerobic aeration tank and anaerobic aeration tank at the same time has been developed. However, due to enormous equipment cost and technical difficulties, it is used only in industrial sites that are extremely limited at home and abroad.
특히 우리나라 염색업계를 비롯한 산업현장에서는 호기성 포기조는 설치되어 있으나 혐기성 포기조를 설치할 공간마저 마련할 수 없는 안타까운 실정에 직면하고 있다.In particular, the aerobic aeration tanks are installed in the industrial sites, including the dyeing industry in Korea, but there is a sad situation that even the space for installing anaerobic aeration tanks cannot be prepared.
본 발명에서는 집수조와 포기조 사이에 설치되어 있는 반응조에 전기분해장치를 담구어 몇가지 금속 염화물 혼합물이나 단일 물질을투입한 후 전기분해하여 산업폐수의 COD, BOD, SS, 색도 및 TN을 매우 효과적으로 저하시키는 신기술을 개발하였다.In the present invention, the electrolytic apparatus is immersed in the reaction tank installed between the sump tank and the aeration tank to inject some metal chloride mixture or a single substance and then electrolyze to effectively reduce the COD, BOD, SS, color and TN of industrial wastewater. Developed new technology.
이 기술은 본 발명자가 본 발명출원에 앞서 특허출원 제 96-14619호, 동 제 96-22480호, 동 제 96-52501호와 밀접한 관계가 있으나 전술한 특허에서는 탈질효과에 대한 발명은 수행한 바 없다. 앞에서 언급한 현재의 탈질기술(질소제거기술)의 경제적, 공간적 및 기술적인 애로사항을 완전히 해결한 본 발명의 실시예를 다음과 같이 언급하고자 한다.This technique is closely related to the patent applications 96-14619, 96-22480, 96-52501 prior to the present invention, but the invention described above for the denitrification effect has been carried out. none. An embodiment of the present invention that completely solves the economic, spatial and technical difficulties of the current denitrification technology (nitrogen removal technology) mentioned above will be mentioned as follows.
[실험 1][Experiment 1]
pH=11.3, COD=921.0 ppm 인 염색폐수 1,000㎖에 3M 염화 제 2철 용액2.0㎖를 넣고 공기로 버브링하면서 30분간 전기분해하였다.2.0 ml of 3M ferric chloride solution was added to 1,000 ml of dyed wastewater having pH = 11.3 and COD = 921.0 ppm, and electrolyzed for 30 minutes while bubbling with air.
[실험 2][Experiment 2]
실험 1과 동일한 염색폐수 1,000㎖에 3M 염화 제 2철 용액 2.0㎖를 넣고 공기로 버브링 하면서 30분간 전기분해 하였다.2.0 ml of 3M ferric chloride solution was added to 1,000 ml of the same dyeing wastewater as in Experiment 1, and electrolyzed for 30 minutes while bubbling with air.
[실험 3][Experiment 3]
실험 1과 동일한 염색폐수 1,000㎖에 3M PAC(polyalumium chloride)2.0㎖를 넣고 공기로 버브링하면서 30분간 분해하였다.Into the same dyeing wastewater 1,000ml of Experiment 1, 2.0M 3M PAC (polyalumium chloride) was added and decomposed for 30 minutes while bubbling with air.
[실험 4][Experiment 4]
실험 1과 동일한 염색폐수 1,000㎖에 3M CaCl2.0㎖를 넣고 공기로 버브링하면서 30분간 전기분해하였다.3M CaCl2.0ml was added to 1,000ml of the same dyeing wastewater as in Experiment 1, and electrolyzed for 30 minutes while bubbling with air.
[실험 5][Experiment 5]
실험 1과 동일한 염색폐수 1,000㎖에 3M FeCl1.0㎖와 3M PAC 1.0㎖를 넣고 공기로 버브링하면서 30분간 전기분해하였다.1,000 ml of the same wastewater as Experiment 1 was added with 1.0 ml of 3M FeCl and 1.0 ml of 3M PAC, followed by electrolysis for 30 minutes while bubbling with air.
[실험 6][Experiment 6]
실험 1과 동일한 염색폐수 1,000㎖에 3M FeCl1.0㎖ 3M PAC 0.5㎖와 CaCl0.5㎖를 넣고 공기로 버브링하면서 30분간 전기분해하였다.In 1,000 ml of the same dyeing waste water as Experiment 1, 0.5 ml of 3M FeCl 1.0 ml and 3 ml PAC and 0.5 ml of CaCl were added and subjected to electrolysis for 30 minutes while bubbling with air.
이상 표 1에서부터 표 6에 나타낸 바와 같이 총질소(TN) 1,460 ppm인 염색폐수 1,000㎖에 FeCl2.0㎖를 넣고 30분간 전기분해 하면 TN제거율이 91.6% 가장높고, 그 외에 FeCl, PAC와 CaCl를 각각 또는 혼합시약을 같은 염색폐수 1,000㎖에 2.0㎖를 넣고 30분간 전기분해 하였을 때 TN 제거율도 모80%이상이었다. 그리고 COD 제거율은 70∼86% 에 달하였으며 색도는 흑색에서 95% 이상의 제거율로 완전 무색에 가까운 결과를 나타내었다.As shown in Table 1 to Table 6, when FeCl2.0ml was added to 1,000ml of dye wastewater with total nitrogen (TN) of 1,460 ppm and electrolyzed for 30 minutes, the TN removal rate was 91.6%, and FeCl, PAC and CaCl were the highest. TN removal rate was more than 80% when 2.0 ml of each or mixed reagent was added to 1,000 ml of the same dyeing waste water and electrolyzed for 30 minutes. The COD removal rate was 70-86%, and the chromaticity was almost completely colorless with 95% or more removal from black.
이와 같은 현상은 암모니아성 질소(NH-N)이나 질산성 질소(HNO-N)의 환원에 염소이온(Cr)이나 또는 전기분해에 의하여 양극산화에 의하여 발생되는 염소분자(Cl)가 탈질과 탈색에 중요한 역할을 하고 있다고 생각할 수 있다.This phenomenon is caused by the denitrification and discoloration of chlorine ion (Cr) or reduction of chlorine molecules (Cl) produced by anodization by electrolysis in the reduction of ammonia nitrogen (NH-N) or nitrate nitrogen (HNO-N). You can think that it plays an important role.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970015144A KR19980077862A (en) | 1997-04-18 | 1997-04-18 | Industrial wastewater denitrification and purification |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019970015144A KR19980077862A (en) | 1997-04-18 | 1997-04-18 | Industrial wastewater denitrification and purification |
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| KR19980077862A true KR19980077862A (en) | 1998-11-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020075513A (en) * | 2001-03-24 | 2002-10-05 | 조용덕 | The waste water treatment method using electrolysis |
| KR20030061229A (en) * | 2002-01-11 | 2003-07-18 | 김병화 | Method for treating wastewater contained high concentration nitrogen |
| KR100416476B1 (en) * | 2003-08-12 | 2004-01-31 | 주식회사 한남코퍼레이션 | A method for efficient controlling of total nitrogen content in waste water produced in manufacturing process of copper phthalocyanine |
-
1997
- 1997-04-18 KR KR1019970015144A patent/KR19980077862A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020075513A (en) * | 2001-03-24 | 2002-10-05 | 조용덕 | The waste water treatment method using electrolysis |
| KR20030061229A (en) * | 2002-01-11 | 2003-07-18 | 김병화 | Method for treating wastewater contained high concentration nitrogen |
| KR100416476B1 (en) * | 2003-08-12 | 2004-01-31 | 주식회사 한남코퍼레이션 | A method for efficient controlling of total nitrogen content in waste water produced in manufacturing process of copper phthalocyanine |
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