KR960037579A - Removal method of phosphorus in sewage and wastewater by steelmaking slag - Google Patents
Removal method of phosphorus in sewage and wastewater by steelmaking slag Download PDFInfo
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- KR960037579A KR960037579A KR1019950008220A KR19950008220A KR960037579A KR 960037579 A KR960037579 A KR 960037579A KR 1019950008220 A KR1019950008220 A KR 1019950008220A KR 19950008220 A KR19950008220 A KR 19950008220A KR 960037579 A KR960037579 A KR 960037579A
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- crystallization
- phosphorus
- sewage
- wastewater
- treated water
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Abstract
본 발명은 하·폐수중 인의 제거방법에 관한 것으로 더욱 상세하게는, 제강전로슬래그에 의해 폐수중의 함유 된 인을 제거하는 방법이다.The present invention relates to a method for removing phosphorus from sewage and wastewater, and more particularly, to remove phosphorus contained in wastewater by steelmaking converter slag.
본 발명은 하·폐수중 함유된 인의 제거방법에 있어서, (i) 정석탈인반응이 적합한 속도로 진행시키기 위하여 2차 침전지 유출수를 대상으로 하는 유입원수의 pH와 Ca2+이온농도를 조정하는 전처리단계, (ii) 상기의 전처리된 처리수를 공탑속도(space velocity) 2.5내지 4(hr-1)로 정석제인 제강전로 슬래그가 충전된 정석탑을 통과시켜 인을 제거하는 정석반응단계, (iii) 상기의 정석반응 단계후 인이 제거된 처리수의 pH를 조절하는 후처리 단계로 이루어지는 것을 특징으로 하는 하·폐수중 인의 제거방법이다.The present invention relates to a method for removing phosphorus contained in sewage and wastewater, comprising: (i) adjusting the pH and Ca 2+ ion concentration of influent water for the secondary sediment effluent in order to proceed the crystallization dephosphorization at a suitable rate; Pretreatment step, (ii) crystallization step of removing the phosphorus by passing the pretreated treated water through a crystallization tower filled with slag of crystallization at a space velocity of 2.5 to 4 (hr -1 ); (iii) a method for removing phosphorus in sewage / wastewater, characterized in that it comprises a post-treatment step after adjusting the pH of the treated water from which phosphorus is removed after the crystallization step.
본 발명에 의한 정석재로 제강전로 슬래그를 사용하는 경우 정석재로부터의 Ca2+및 OH-의 용출 성능을 정석반응의 촉진은 물론 전처리단계의 약품절감에 유용하게 이용하여 매우 높은 인제거율을 나타냈고, 정석재의 사용수명도 현저히 증가되었다.In the case of using steelmaking converter slag as the crystallization material according to the present invention, the dissolution performance of Ca 2+ and OH - from the crystallization material was used not only to promote the crystallization reaction but also to reduce the chemicals of the pretreatment step, and thus showed very high phosphorus removal rate. In addition, the service life of the crystallized material was also significantly increased.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명에 의한 정석반응에서 사용하기 위한 장치의 개략적인 도면이다.1 is a schematic diagram of an apparatus for use in the crystallization reaction according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950008220A KR960037579A (en) | 1995-04-08 | 1995-04-08 | Removal method of phosphorus in sewage and wastewater by steelmaking slag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950008220A KR960037579A (en) | 1995-04-08 | 1995-04-08 | Removal method of phosphorus in sewage and wastewater by steelmaking slag |
Publications (1)
Publication Number | Publication Date |
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KR960037579A true KR960037579A (en) | 1996-11-19 |
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ID=66553406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019950008220A KR960037579A (en) | 1995-04-08 | 1995-04-08 | Removal method of phosphorus in sewage and wastewater by steelmaking slag |
Country Status (1)
Country | Link |
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KR (1) | KR960037579A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100306444B1 (en) * | 1999-04-13 | 2001-09-13 | 정종수 | The manufacture method of bacteria activated by sewage and wastes water treatment |
KR20020092619A (en) * | 2001-06-05 | 2002-12-12 | 김창균 | Method for the physical and chemical coagulation and flocculation treatment water and wastewater using a slag and a fly ash |
KR100371870B1 (en) * | 2000-06-26 | 2003-02-11 | 김응호 | Process and apparatus for recovering and removing orthophosphates from sewage and wastes |
KR100435429B1 (en) * | 1999-08-10 | 2004-06-10 | 주식회사 포스코 | A method for inhibiting contaminants-liberation from sediments |
KR100804245B1 (en) * | 2006-09-08 | 2008-02-18 | 재단법인 포항산업과학연구원 | Method for removing heavy metal and color from landfill leachates using steelmaking slag |
-
1995
- 1995-04-08 KR KR1019950008220A patent/KR960037579A/en not_active Application Discontinuation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100306444B1 (en) * | 1999-04-13 | 2001-09-13 | 정종수 | The manufacture method of bacteria activated by sewage and wastes water treatment |
KR100435429B1 (en) * | 1999-08-10 | 2004-06-10 | 주식회사 포스코 | A method for inhibiting contaminants-liberation from sediments |
KR100371870B1 (en) * | 2000-06-26 | 2003-02-11 | 김응호 | Process and apparatus for recovering and removing orthophosphates from sewage and wastes |
KR20020092619A (en) * | 2001-06-05 | 2002-12-12 | 김창균 | Method for the physical and chemical coagulation and flocculation treatment water and wastewater using a slag and a fly ash |
KR100804245B1 (en) * | 2006-09-08 | 2008-02-18 | 재단법인 포항산업과학연구원 | Method for removing heavy metal and color from landfill leachates using steelmaking slag |
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