KR960004233A - Biological Removal Methods of Nitrogen and Phosphorus - Google Patents

Biological Removal Methods of Nitrogen and Phosphorus Download PDF

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Publication number
KR960004233A
KR960004233A KR1019940017038A KR19940017038A KR960004233A KR 960004233 A KR960004233 A KR 960004233A KR 1019940017038 A KR1019940017038 A KR 1019940017038A KR 19940017038 A KR19940017038 A KR 19940017038A KR 960004233 A KR960004233 A KR 960004233A
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KR
South Korea
Prior art keywords
tank
phosphorus
sludge
denitrification
nitrogen
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KR1019940017038A
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Korean (ko)
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KR100217358B1 (en
Inventor
이중신
서동우
탁윤정
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김상응
주식회사 삼양사
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Priority to KR1019940017038A priority Critical patent/KR100217358B1/en
Publication of KR960004233A publication Critical patent/KR960004233A/en
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Publication of KR100217358B1 publication Critical patent/KR100217358B1/en

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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
    • C02F3/30—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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2866—Particular arrangements for anaerobic reactors
    • C02F3/2893—Particular arrangements for anaerobic reactors with biogas recycling
    • 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

Abstract

본 발명은 폐수에서 유기물, 질소, 인등과 같은 부영양화 물질을 높은 제거율로 제거하기 위한 폐수처리 방법에 관한 것이다.The present invention relates to a wastewater treatment method for the removal of eutrophication substances such as organic matter, nitrogen, phosphorus, etc. in the wastewater with a high removal rate.

본 발명에 의해 혐기조에서 유기물을 제거하고 고분자 형태의 인을 정인산 형태로 용출하고, 제1폭기조에서 인을 미생물에 과잉 흡수시킨 후, 모래여과조를 통해 상기 과잉 인 함유 슬러지를 제거하고, 질산화조에서 질산화시킨 후 탈지조에서 탈질시키고, 제폭기조를 거쳐 최종 침전조에서 상등수를 방류하고 침전 슬러지를 선행 공정중으로 반송시킴을 포함하는, 개선된 질소 및 인의 생물학적 제거방법이 제공된다.According to the present invention, the organic matter is removed from the anaerobic tank, the phosphorus in the form of polymer is eluted in the form of phosphorous acid, the phosphorus is excessively absorbed by the microorganism in the first aeration tank, and the excess phosphorus-containing sludge is removed through a sand filtration tank, and in the nitrification tank. An improved method for biological removal of nitrogen and phosphorus is provided, including nitrification followed by denitrification in the degreasing bath, discharge of the supernatant from the final settling tank and returning the settling sludge to the pre-process.

Description

질소 및 인의 생물학적 제거방법Biological Removal Methods of Nitrogen and Phosphorus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 미생물을 이용하여 폐수중의 질소 및 인을 제거하는 본 발명의 공정을 도식적으로 나타낸 것이다.1 is a schematic representation of the process of the present invention for the removal of nitrogen and phosphorus from wastewater using microorganisms.

Claims (9)

유기물질, 질소 및 인을 포함하는 부영양화 물질을 제거하는 폐수처리 방법에 있어서, 최초 침전지의 유출수, 최종 침전조에서 재순환되는 반송 슬러지 및 여과장치에서 유출되는 역세척수를 혐기조에 혼합 유입시켜 유기물을 제거하고 고분자 형태의 인을 정인산(ortho phosphate)형태로 용출시키는 단계; 상기 혐기조의 유출물을 제1폭기조에 유입시켜 미생물에 인을 과잉 흡수시키는 단계; 상기 제1폭기종의 과잉 인 함유 슬러지를 모래여과조에서 여과 제거하는 단계; 상기 모래여과조를 거친 유출물을 질산화조에서 질산화시키는 단계; 질산화된 처리수를 탈질조에서 무산소 조건하에 질소를 산화질소 형태에서 질소기체 형태로 제거하는 단계; 상기 탈질 과정을 거친 처리수를 재폭기조에 유입시켜 산소를 공급하는 단계; 및 상기 재폭기조의 유출물을 최종 침전조에 유입하여 중력 침전 처리한 후 상등수를 방류시키고 침전 슬러지를 반송시키는 단계를 포함하는, 질소 및 인의 제거율을 높이는 폐수처리 방법.In the wastewater treatment method for removing eutrophic substances including organic substances, nitrogen and phosphorus, the organic matter is removed by mixing and introducing the effluent from the first settling basin, the return sludge recycled in the final settling tank and the backwash water flowing out from the filtration unit into the anaerobic tank. Eluting phosphorus in the form of a polymer in the form of ortho phosphate; Flowing the effluent of the anaerobic tank into the first aeration tank to overabsorb phosphorus on the microorganism; Filtering excess phosphorus-containing sludge of the first aeration species in a sand filtration tank; Nitrifying the effluent having passed through the sand filtration tank in a nitrification tank; Removing the nitrified treated water from the nitric oxide form to the nitrogen gas form under anoxic conditions in a denitrification tank; Supplying oxygen by introducing the treated water that has undergone the denitrification into a reaeration tank; And distilling the effluent of the reaeration tank into the final sedimentation tank and subjecting the sedimentation sludge to discharge the supernatant and returning the settling sludge to increase the removal rate of nitrogen and phosphorus. 제1항에 있어서, 상기 혐기조가 2단 이상의 다단으로 구성된 방법.The method of claim 1, wherein the anaerobic tank is composed of two or more stages. 제1항에 있어서, 상기 제1폭기조에서의 접촉 시간이 0.5 내지 1.5시간인 방법.The method according to claim 1, wherein the contact time in the first aeration tank is 0.5 to 1.5 hours. 제1항에 있어서, 모래여과조 대신에 침전조를 사용하여 과량의 인함유 슬러지를 제거하는 방법.The method of claim 1, wherein the precipitation tank is used to remove excess phosphorus sludge in place of the sand filtration tank. 제1항에 있어서, 상기 모래여과조의 상부 표면에 2겹 이상의 부직포를 위치시키는 방법.The method of claim 1, wherein at least two layers of nonwoven are placed on the top surface of the sand filtration bath. 제5항에 있어서, 상기 모래여과조의 부직포의 상부표면에 잔류하는 슬러지를 제외한 나머지 슬러지를 혐기조에 반송시키는 방법.The method according to claim 5, wherein the remaining sludge is returned to the anaerobic tank except for the sludge remaining on the upper surface of the nonwoven fabric of the sand filtration tank. 제1항에 있어서, 상기 탈질조가 2단 이상의 다단으로 구성된 방법.The method according to claim 1, wherein the denitrification tank is composed of two or more stages. 제1항에 있어서, 최종 침전조에서 배출되는 슬러지 전량을 혐기조, 질산화조 및 탈질조에 각각 30 내지 45%, 45 내지 60% 및 10 내지 20%의 비율로 반송하는 방법.The method according to claim 1, wherein the total amount of sludge discharged from the final settling tank is returned to the anaerobic tank, the nitrification tank, and the denitrification tank at a ratio of 30 to 45%, 45 to 60%, and 10 to 20%, respectively. 제8항에 있어서, 상기 탈질조에 유입되는 슬러지를 혐기조에서 발생되는 바이오 가스를 이용하여 70 내지 85℃의 온도로 가열처리 하는 방법.The method of claim 8, wherein the sludge flowing into the denitrification tank is heated to a temperature of 70 to 85 ℃ using a biogas generated in an anaerobic tank. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940017038A 1994-07-15 1994-07-15 Process for the biological removal of nitrogen and phosphorus KR100217358B1 (en)

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KR1019940017038A KR100217358B1 (en) 1994-07-15 1994-07-15 Process for the biological removal of nitrogen and phosphorus

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KR100217358B1 KR100217358B1 (en) 1999-10-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100453453B1 (en) * 2000-01-18 2004-10-15 삼성엔지니어링 주식회사 Apparatus for treament of waste water containing nitrogen and phosphorus and treatment process using the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435220B (en) * 2013-08-13 2015-01-07 清华大学 Coupled A[2]O suspended filler process and cloth media filter integrated nitrogen and phosphorus removal device and method
CN105502663B (en) * 2016-02-18 2018-02-13 江西省科学院能源研究所 A kind of multifunctional bio denitrification reactor
CN106219883A (en) * 2016-08-28 2016-12-14 潘纪鸿 Method for treating rural wastewater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100453453B1 (en) * 2000-01-18 2004-10-15 삼성엔지니어링 주식회사 Apparatus for treament of waste water containing nitrogen and phosphorus and treatment process using the same

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