KR100711757B1 - Activated slag for treating wastewater and wastewater treating method using same - Google Patents
Activated slag for treating wastewater and wastewater treating method using same Download PDFInfo
- Publication number
- KR100711757B1 KR100711757B1 KR1020000080330A KR20000080330A KR100711757B1 KR 100711757 B1 KR100711757 B1 KR 100711757B1 KR 1020000080330 A KR1020000080330 A KR 1020000080330A KR 20000080330 A KR20000080330 A KR 20000080330A KR 100711757 B1 KR100711757 B1 KR 100711757B1
- Authority
- KR
- South Korea
- Prior art keywords
- slag
- wastewater
- activated
- wastewater treatment
- present
- Prior art date
Links
- 239000002893 slag Substances 0.000 title claims abstract description 79
- 239000002351 wastewater Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000006227 byproduct Substances 0.000 claims abstract description 9
- 238000009628 steelmaking Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- 230000003213 activating effect Effects 0.000 claims abstract description 6
- 239000000356 contaminant Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000011651 chromium Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052804 chromium Inorganic materials 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 6
- -1 color Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000001994 activation Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 231100000676 disease causative agent Toxicity 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
본 발명은 폐수처리용 활성화 슬래그 및 이를 이용한 폐수처리방법에 관한 것으로, 보다 상세하게는 (a) 제철소의 제철공정 중 생성되는 부산물인 슬래그(slag)를 채취하여 분쇄 및 세척하는 단계; (b) 상기 세척된 슬래그를 200 내지 230 ℃에서 건조하는 단계; 및 (c) 상기 건조된 슬래그를 550 내지 650 ℃에서 활성화시키는 단계;를 포함하는 것을 특징으로 하는 폐수처리용 활성화 슬래그 제조방법과 상기 방법에 의하여 제조된 활성화 슬래그를 이용한 폐수처리방법에 관한 것이다. The present invention relates to an activated slag for wastewater treatment and a wastewater treatment method using the same, and more specifically, (a) collecting and crushing and washing slag (slag), which is a by-product generated during a steelmaking process of an ironworks; (b) drying the washed slag at 200 to 230 ° C .; And (c) activating the dried slag at 550 to 650 ° C .; and a method for producing wastewater treatment activated slag and wastewater treatment using the activated slag produced by the method.
본 발명의 폐수처리방법은 특히 폐수 중의 크롬, 납, 색도, 화학적산소요구량(COD)의 제거에 효율적이다.The wastewater treatment method of the present invention is particularly effective for removing chromium, lead, color, and chemical oxygen demand (COD) in wastewater.
슬래그, 폐수처리, 크롬, 납, CODSlag, Wastewater Treatment, Chromium, Lead, COD
Description
도 1은 본 발명의 활성화 슬래그를 이용하여 폐수를 처리하였을 때의 시간대별 중금속 제거효율 그래프이고,1 is a graph of heavy metal removal efficiency according to time slots when wastewater is treated using an activated slag of the present invention.
도 2는 본 발명의 활성화 슬래그를 이용하여 폐수를 처리하였을 때의 시간대별 색도의 제거효율 그래프이고,2 is a graph illustrating removal efficiency of chromaticity according to time slots when wastewater is treated using the activated slag of the present invention.
도 3은 본 발명의 활성화 슬래그를 이용하여 폐수를 처리하였을 때의 시간대별 화학적 산소요구량(COD)의 제거효율 그래프이다.3 is a graph illustrating removal efficiency of chemical oxygen demand (COD) according to time slots when wastewater is treated using the activated slag of the present invention.
[발명이 속하는 기술분야][TECHNICAL FIELD OF THE INVENTION]
본 발명은 폐수처리용 활성화 슬래그 및 이를 이용한 폐수처리방법에 관한 것으로, 보다 상세하게는 제철소의 제철공정 중 생성되는 부산물인 슬래그(slag)를 재활용하여 폐수처리용 활성화 슬래그로 제조하는 방법과 상기 방법에 의하여 제조된 활성화 슬래그 및 이를 이용한 폐수처리방법에 관한 것이다.The present invention relates to an activated slag for wastewater treatment and a wastewater treatment method using the same, and more particularly, a method for producing an activated slag for wastewater treatment by recycling slag, which is a by-product generated during an iron making process, and the method. It relates to an activated slag produced by the same and a wastewater treatment method using the same.
[종래기술] [Private Technology]
중금속인 크롬, 납은 공장폐수 속에 다량 함유되어 있으며, 하천, 해양 등 수계에 방류될 경우 독성물질로서 어폐류에 축적되며, 고농도의 경우 폐사를 초래한다.Heavy metals such as chromium and lead are contained in factory wastewater, and when discharged into rivers and oceans, they accumulate in fish wastes as toxic substances, and at high concentrations, they cause death.
화학적산소요구량(COD)은 유기물질에 의한 오염으로 수중의 산소를 소비시키는 원인물질이며, 색도의 경우는 수중에 유입하는 일광을 차단시켜 수중생태계의 변화를 초래하며 빈번한 민원의 발생이 되고 있다.Chemical Oxygen Demand (COD) is a causative agent that consumes oxygen in water due to pollution by organic materials, and in the case of chromaticity, it changes the ecosystem of the aquatic environment by blocking the sunlight coming into the water and causes frequent complaints.
일반적으로 중금속인 크롬, 납의 제거는 물리 화학적 방법인 산, 알칼리를 이용한 수산화물 침전법, 산화환원법 등이 있으며, 유기물질 제거방법으로는 미생물에 의한 생물학적 처리방법과 산화제에 의한 화학적 처리방법이 주로 사용되어지며, 색도의 경우는 오존산화법과 활성탄 흡작법이 대표적인 방법이라고 할 수 있다.In general, the removal of heavy metals such as chromium and lead includes physicochemical methods such as acid and alkali hydroxide precipitation and redox methods, and organic materials removal methods include biological treatment by microorganisms and chemical treatment with oxidants. In the case of chromaticity, the ozone oxidation method and the activated carbon absorption method are representative methods.
그러나 상기의 방법들은 오염물질에 따라 별도의 처리방법을 적용하여야 하는 문제점이 있고, 약품사용에 의한 2차 오염의 발생이 예상되며 미생물에 의한 생물할적 처리방법의 경우는 계절과 수온의 변화에 따라서 처리효율이 급격히 저하하는 문제점이 발생하게 된다.However, the above methods have a problem that a separate treatment method should be applied according to the pollutants, and secondary pollution is expected to occur due to the use of chemicals. Therefore, a problem arises in that the processing efficiency is sharply lowered.
본 발명은 상기한 종래기술의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명은 제철소에서 발생되는 부산물인 슬래그를 적정한 조건하에서 활성화하여 폐수 중 오염물질인 크롬, 납, 색도, 화학적산소요구량(COD)을 동시에 제거할 수 있는 활성화 슬래그를 제공하는 것을 목적으로 한다. The present invention has been made to solve the above problems of the prior art, the present invention is activated by the slag which is a by-product generated in steel mills under appropriate conditions, chromium, lead, color, chemical oxygen demand (COD) of pollutants in waste water It is an object of the present invention to provide an activated slag which can be removed at the same time.
또한 본 발명은 상기 활성화 슬래그를 제조하는 방법을 제공하는 것을 목적으로 한다.It is also an object of the present invention to provide a method for producing the activated slag.
또한 본 발명은 상기 활성화 슬래그를 이용하여 폐수 중 오염물질 제거방법을 제공하는 것을 목적으로 한다.Another object of the present invention is to provide a method for removing contaminants in wastewater using the activated slag.
상기 목적을 달성하기 위하여 본 발명은,The present invention to achieve the above object,
(a) 제철소의 제철공정 중 생성되는 부산물인 슬래그(slag)를 채취하여 분쇄 및 세척하는 단계;(a) collecting, crushing and washing slag which is a by-product generated during the steelmaking process of the steel mill;
(b) 상기 세척된 슬래그를 200 내지 230 ℃에서 건조하는 단계; 및(b) drying the washed slag at 200 to 230 ° C .; And
(c) 상기 건조된 슬래그를 550 내지 650 ℃에서 활성화시키는 단계;(c) activating the dried slag at 550 to 650 ° C .;
를 포함하는 것을 특징으로 하는 폐수처리용 활성화 슬래그 제조방법을 제공한다.It provides a method for producing activated slag for wastewater treatment comprising a.
또한 본 발명은 상기 폐수처리용 활성화 슬래그 제조방법에 의하여 제조된 활성화 슬래그를 제공한다.The present invention also provides an activated slag produced by the method for producing activated slag for wastewater treatment.
또한 본 발명은 폐수를 오염물질 제거능이 있는 담체와 접촉시켜 폐수 중의 오염물질을 제거하는 방법에 있어서,The present invention also provides a method for removing contaminants in wastewater by contacting the wastewater with a carrier capable of removing contaminants.
상기 담체가 상기 활성화 슬래그 제조방법에 의하여 제조된 활성화 슬래그인 것을 특징으로 하는 폐수처리방법를 제공한다.The carrier provides a wastewater treatment method, characterized in that the activated slag produced by the method for producing activated slag.
이하 본 발명은 상세히 설명한다.Hereinafter, the present invention will be described in detail.
본 발명의 활성화 슬래그는 (a) 제철소의 제철공정 중 생성되는 부산물인 슬 래그(slag)를 채취하여 분쇄 및 세척하는 단계, (b) 상기 세척된 슬래그를 200 내지 230 ℃에서 건조하는 단계, 및 (c) 상기 건조된 슬래그를 550 내지 650 ℃에서 활성화시키는 단계를 통하여 제조되는 것을 특징으로 한다.Activated slag of the present invention comprises the steps of (a) collecting the slag (slag) which is a by-product produced during the steelmaking process of steel mill, grinding and washing, (b) drying the washed slag at 200 to 230 ℃, and (C) is characterized in that it is prepared through the step of activating the dried slag at 550 to 650 ℃.
본 발명에 이용되는 슬래그는 제철공정 중에 생성되는 부산물로서, 1,300 내지 1,500 ℃의 고온에서 철광석이 용융되어 비중의 차이에 의해서 철과 분리되어 냉각된다. 이때 냉각과정에서 초당 수십 도의 속도로 냉각되면서 80 내지 100 Kcal/Kg의 결정화 열이 발생되고 응고과정에서 기포가 발생하게 된다. 이와 같이 발생된 자유기포는 슬래그 내에 수많은 기공을 형성하게 되고, 이 기공에 의해서 슬래그가 폐수 중의 오염물질에 대한 흡착능력을 갖게 된다.The slag used in the present invention is a by-product produced during the steelmaking process, and iron ore is melted at a high temperature of 1,300 to 1,500 ° C. to be separated from iron and cooled by a difference in specific gravity. At this time, while cooling at a rate of several tens of degrees per second during the cooling process, crystallization heat of 80 to 100 Kcal / Kg is generated, and bubbles are generated during the solidification process. The free bubbles thus generated form numerous pores in the slag, and the pores have the ability to adsorb the slag to contaminants in the wastewater.
슬래그 내의 기공의 크기는 크게 100 Å을 기준으로 2가지로 분류되는 것이 일반적이고, 기공의 용적이 적은 쪽을 마이크로 포아(micro pore), 기공의 용적이 큰 쪽을 마크로 포아(macro pore)라고 부르며, 마크로 포아 쪽이 흡착능력이 우수하다. 따라서 폐수 속의 오염물질의 처리효율을 높이기 위해서는 슬래그 내의 기공의 형성을 발달시킴이 매우 중요하다고 할 수 있다.The pore size in slag is generally classified into two types based on 100,. The smaller pore volume is called micro pore, and the larger pore volume is called macro pore. , Macropore has good adsorption capacity. Therefore, it is very important to develop the formation of pores in the slag to increase the treatment efficiency of pollutants in the waste water.
본 발명의 폐수처리용 활성화 슬래그 제조방법은 제철공정의 부산물인 슬래그를 채취하여 분쇄한 후 세척하는 단계를 포함한다. 슬래그의 분쇄는 특별히 한정되는 것은 아니나 100 내지 200 메쉬(mesh)로 분쇄하는 것이 바람직하다. 또한 슬래그에 부착된 불순물 및 미세입자의 제거를 위해서 세척을 실시한다.Activated slag manufacturing method for wastewater treatment of the present invention includes the step of collecting and crushing the slag as a by-product of the steel making process and washing. Grinding of the slag is not particularly limited, but is preferably pulverized to 100 to 200 mesh (mesh). Also Washing is performed to remove impurities and fine particles adhering to the slag.
또한 본 발명의 폐수처리용 활성화 슬래그 제조방법은 상기 세척한 슬래그를 200 내지 230 ℃에서 건조하는 단계를 포함한다. 상기 단계에서 슬래그 표면의 수 분은 물론 내부결합수까지 완전히 제거된다. 상기 건조온도가 200 ℃ 미만인 경우는 내부결합수까지 제거하기가 어려우며, 230 ℃를 초과하는 경우에는 슬래그의 물성변화가 초래될 염려가 있다.In addition, the method for producing activated slag for wastewater treatment of the present invention includes the step of drying the washed slag at 200 to 230 ℃. In this step, the moisture of the slag surface as well as the internally bound water are completely removed. If the drying temperature is less than 200 ℃ it is difficult to remove the internally bound water, if it exceeds 230 ℃ there is a risk of causing a change in the properties of the slag.
또한 본 발명의 폐수처리용 활성화 슬래그 제조방법은 상기 건조된 슬래그를 550 내지 650 ℃에서 활성화시키는 단계를 포함한다. 상기 온도가 550 ℃ 미만이거나 650 ℃를 초과하는 경우에는 폐수처리에 요구되는 슬래그 내의 적절한 크기의 마크로 포아 형성에 좋지 않다. 활성화시키는 시간은 약 2시간 정도가 바람직하다.In addition, the method for producing activated slag for wastewater treatment of the present invention includes the step of activating the dried slag at 550 to 650 ℃. If the temperature is below 550 ° C. or above 650 ° C., it is not good for macropore formation of appropriate size in slag required for wastewater treatment. The activation time is preferably about 2 hours.
또한 본 발명은 상기 방법에 의하여 제조된 활성화 슬래그를 제공하는 바, 본 발명의 활성화 슬래그는 슬래그 내의 기공형성이 매우 발달되어 활성화 전의 슬래그에 비해서 흡착능력이 크게 향상되었으며 폐수 중 함유된 오염물질 제거능력이 월등히 향상된다. 특히 크롬, 납 등의 중금속, 색도, 화학적산소요구량(COD)의 제거에 효율적이다.In addition, the present invention provides an activated slag prepared by the above method, the activated slag of the present invention is highly developed pore formation in the slag has greatly improved the adsorption capacity compared to the slag before activation and the ability to remove contaminants contained in the waste water This is greatly improved. In particular, it is effective for removing heavy metals such as chromium and lead, chromaticity, and chemical oxygen demand (COD).
또한 본 발명은 폐수를 오염물질 제거능이 있는 담체와 접촉시켜 폐수 중의 오염물질을 제거하는 방법에 있어서, 상기 활성화 슬래그를 담체로서 사용하는 것을 특징으로 하는 폐수처리방법을 제공하는 바, 상기 폐수는 제철공정에서 발생하는 폐수로서, 특히 2 내지 3 mg/l의 크롬이온, 1 내지 2 mg/l의 납이온, 50 내지 100 mg/l 정도의 COD, 100 내지 200 mg/l 정도의 색도를 갖는 폐수가 바람직하다. 본 발명에서는 활성화 슬래그의 사용량을 증가시킴에 따라 오염물질의 제거정도가 증가하며, 바람직하게는 폐수 1리터 당 2 g 이상, 바람직하게는 4 g 이상의 활성화 슬래그를 사용하는 것이 좋다. 또한 활성화 슬래그를 폐수와 접촉시키는 시간은 3시간 이상이 바람직하다.In another aspect, the present invention provides a method for treating wastewater by contacting wastewater with a carrier capable of removing contaminants, wherein the activated slag is used as a carrier. Waste water from the process, in particular 2 to 3 mg / l chromium ions, 1 to 2 mg / l lead ions, 50 to 100 mg / l COD, and 100 to 200 mg / l chromatic water Is preferred. In the present invention, as the usage amount of activated slag increases, the degree of removal of contaminants increases, and preferably, 2 g or more, preferably 4 g or more, of activated slag is used per liter of wastewater. In addition, the time for contacting the activated slag with the wastewater is preferably 3 hours or more.
이하 본 발명의 실시예를 기재한다. 그러나 하기 실시예는 본 발명을 예시하기 위한 것일 뿐 본 발명이 하기 실시예에 한정되는 것은 아니다.Hereinafter, examples of the present invention will be described. However, the following examples are only for illustrating the present invention and the present invention is not limited to the following examples.
[실시예 1]Example 1
제철공정 중에 발생한 슬래그를 채취하여 100 내지 200 메쉬의 크기로 분쇄하고, 물로 세척하여 불순물을 제거하였다. 상기 세척된 슬래그를 200 ℃에서 건조한 후 상온에서 냉각하였다. 건조된 슬래그를 600 ℃에서 2시간 동안 활성화시켜 폐수처리용 활성화 슬래그를 제조하였다.Slag generated during the steelmaking process was collected and ground to a size of 100 to 200 mesh, washed with water to remove impurities. The washed slag was dried at 200 ° C and then cooled to room temperature. The dried slag was activated at 600 ° C. for 2 hours to prepare an activated slag for wastewater treatment.
[실시예 2]Example 2
상기 실시예 1에서 제조된 활성화 슬래그를 이용하여 오염물질의 처리정도를 파악하기 위하여 오염된 폐수 500ml 당 활성화 된 슬래그 1 g, 2 g 씩 각각 농도를 달리하여 표 1과 같이 4개의 시료를 제조해 Jar test를 통해서 250 rpm으로 접촉시키는 회분식 실험을 실시하였다. 단위는 mg/l이다.In order to determine the degree of treatment of contaminants using the activated slag prepared in Example 1, four samples were prepared as shown in Table 1 by varying the concentration of activated slag 1 g and 2 g per 500 ml of contaminated wastewater. A batch test was carried out in contact with the jar test at 250 rpm. The unit is mg / l.
상기 표1에서 보는 바와 같이 중금속의 경우는 활성화 된 슬래그를 주입량이 1 g 보다 2 g의 경우가 상대적으로 처리효율이 높게 나타났으며, COD의 처리효율은 50 %정도이며, 특히 색도의 경우는 가장 높은 처리효율을 나타내고 있다. 전반적으로 D시료에서 처리효율이 높게 확인됨으로서 활성화된 슬래그가 폐수 속에 오염물질의 제거에 효과가 있음을 알 수 있다.As shown in Table 1, in the case of heavy metals, the injection efficiency of activated slag was 2 g rather than 1 g, and the treatment efficiency was relatively high. The treatment efficiency of COD was about 50%, especially in the case of chromaticity. The highest processing efficiency is shown. Overall, the treatment efficiency is high in the D sample, indicating that the activated slag is effective in removing contaminants from the wastewater.
[실시예 3]Example 3
상기 실시한 실시예 2의 회분식 실험에서의 D시료를 대상으로 연속식으로 오염물질의 제거를 위한 흡착탑을 설치하여 10분, 30분, 1시간, 2시간, 5시간, 10시간 간격으로 일정량씩 시료를 채취하여 오염물질의 처리정도를 관찰하였다.The adsorption tower for continuous removal of contaminants was continuously installed on the D sample in the batch experiment of Example 2, and the sample was fixed at regular intervals every 10 minutes, 30 minutes, 1 hour, 2 hours, 5 hours, and 10 hours. Was collected to observe the degree of contamination.
그 결과 도 1과 같이 중금속(Cr, Pb)의 제거율은 약 80 내지 90 %이며, 3시간대에서 거의 완료됨을 알 수 있으므로 3시간대가 최적의 접촉 시간대임을 확인하였다. 색도의 경우는 도 2에서 보는 바와 같이 1시간대에서 85 % 이상의 제거율을 나타내고 있다. 또한 도 3에서 나타나는 바와 같이 화학적산소요구량(COD)의 제거율은 2시간 이후 약 80 % 정도 이상임을 보여 주었다.As a result, as shown in Figure 1, the removal rate of heavy metals (Cr, Pb) is about 80 to 90%, it can be seen that almost complete in 3 hours, it was confirmed that the 3 hours is the optimal contact time. In the case of chromaticity, as shown in FIG. 2, the removal rate was over 85% in one hour. In addition, as shown in Figure 3 showed that the removal rate of the chemical oxygen demand (COD) is about 80% or more after 2 hours.
상기 결과는 본 발명의 활성화 슬래그를 폐수 리터당 4 g 이상, 슬래그를 투입한 후 3시간 정도의 접촉시간을 유지함이 가장 바람직한 처리 조건임을 보여준다.The results show that the activated slag of the present invention is at least 4 g per liter of wastewater, and the contact time of about 3 hours after the slag is added is the most preferable treatment condition.
상술한 바와 같이 본 발명은 슬래그의 활성화 과정을 통해서 슬래그 내의 기공의 형성을 발달시켜 폐수 속의 오염물질을 효과적으로 제거하여 하천, 해양 등의 수자원보호와 생태계의 파괴를 방지할 수 있다. As described above, the present invention can improve the formation of pores in the slag through the activation process of the slag to effectively remove the contaminants in the wastewater to prevent the destruction of ecosystems and the protection of water resources such as rivers, oceans.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000080330A KR100711757B1 (en) | 2000-12-22 | 2000-12-22 | Activated slag for treating wastewater and wastewater treating method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000080330A KR100711757B1 (en) | 2000-12-22 | 2000-12-22 | Activated slag for treating wastewater and wastewater treating method using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020051009A KR20020051009A (en) | 2002-06-28 |
| KR100711757B1 true KR100711757B1 (en) | 2007-04-25 |
Family
ID=27684666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000080330A KR100711757B1 (en) | 2000-12-22 | 2000-12-22 | Activated slag for treating wastewater and wastewater treating method using same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100711757B1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377483A (en) * | 1979-07-13 | 1983-03-22 | Nippon Kokan Kabushiki Kaisha | Method of removing dissolved heavy metals from aqueous waste liquids |
| JPS5980388A (en) * | 1983-05-06 | 1984-05-09 | Agency Of Ind Science & Technol | Agent for comprehensive disposal of ammonia-contg. liquid matter and comprehensive disposal of said liquid matter |
| JPS61271287A (en) * | 1985-05-21 | 1986-12-01 | フアイザ−・インコ−ポレ−テツド | Hypoglycemiant thiazolidinedione |
| KR920000950A (en) * | 1990-06-29 | 1992-01-29 | 한형수 | Purification method of aluminum |
| KR920000950B1 (en) * | 1989-12-28 | 1992-01-31 | 포항종합제철 주식회사 | Chrome-contained waste water treating method |
| US5417738A (en) * | 1993-06-03 | 1995-05-23 | Ok-Soo Oh | Method for recovering metals included in the slag generated from steel making process |
| KR101995001B1 (en) * | 2017-12-01 | 2019-07-01 | 삼성중공업 주식회사 | Heat generating module |
| KR950010000B1 (en) * | 1992-11-13 | 2020-03-30 | 쌍용양회공업주식회사 | Method for preparing actirated slag powder for nonseparable cement composition used for making underwater concrete |
-
2000
- 2000-12-22 KR KR1020000080330A patent/KR100711757B1/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377483A (en) * | 1979-07-13 | 1983-03-22 | Nippon Kokan Kabushiki Kaisha | Method of removing dissolved heavy metals from aqueous waste liquids |
| JPS5980388A (en) * | 1983-05-06 | 1984-05-09 | Agency Of Ind Science & Technol | Agent for comprehensive disposal of ammonia-contg. liquid matter and comprehensive disposal of said liquid matter |
| JPS61271287A (en) * | 1985-05-21 | 1986-12-01 | フアイザ−・インコ−ポレ−テツド | Hypoglycemiant thiazolidinedione |
| KR920000950B1 (en) * | 1989-12-28 | 1992-01-31 | 포항종합제철 주식회사 | Chrome-contained waste water treating method |
| KR920000950A (en) * | 1990-06-29 | 1992-01-29 | 한형수 | Purification method of aluminum |
| KR950010000B1 (en) * | 1992-11-13 | 2020-03-30 | 쌍용양회공업주식회사 | Method for preparing actirated slag powder for nonseparable cement composition used for making underwater concrete |
| US5417738A (en) * | 1993-06-03 | 1995-05-23 | Ok-Soo Oh | Method for recovering metals included in the slag generated from steel making process |
| KR101995001B1 (en) * | 2017-12-01 | 2019-07-01 | 삼성중공업 주식회사 | Heat generating module |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020051009A (en) | 2002-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101876931B1 (en) | Ceramic filter for treating contaminated water and the manufacturing method thereof | |
| US20110220571A1 (en) | Method of making and using adsorbent to remove heavy metal from waste water | |
| Uçar et al. | Use of aluminium hydroxide sludge as adsorbents for the removal of reactive dyes: equilibrium, thermodynamic, and kinetic studies | |
| CN102580666B (en) | Modified pumice for purifying heavy metal sewage and preparation method and application of modified pumice | |
| Rai et al. | Remediation of industrial effluents | |
| del Mundo Dacera et al. | Use of citric acid for heavy metals extraction from contaminated sewage sludge for land application | |
| CN112569900A (en) | Preparation method and application of novel municipal sludge biochar | |
| CN104478055A (en) | Sewage treatment complexing agent as well as preparation method and application method thereof | |
| KR100711757B1 (en) | Activated slag for treating wastewater and wastewater treating method using same | |
| CN107512746A (en) | A kind of filtering agent and its manufacture method produced with municipal sludge for handling sewage | |
| KR101616174B1 (en) | Method for the remediation of heavy metals polluted soil using recyclable leaching agent | |
| CN115722227A (en) | Iron slag-doped wine-making sludge biochar material and preparation method and application thereof | |
| Yerbolov et al. | Waste water purification from metal ions by ultra-dispersed natural sorbents | |
| Puari et al. | Removal of Ammonium by Biochar Derived from Exhausted Coffee Husk (ECH) at Different Carbonisation Parameter | |
| KR20010018329A (en) | Development of water treatment materials using shell waste | |
| RU2689576C1 (en) | Method of purifying high-arsenic-containing waste water | |
| KR100519886B1 (en) | purificatory chemicals using red mud and manufacturing method thereof | |
| KR100483694B1 (en) | Adsorption Reaction Unit Using Power Active Corbon and Method Thereof | |
| JP2005034742A (en) | Method for treating spent carbon and usage of the carbon | |
| Do et al. | Application of zero valent iron to removal chromium and other heavy metals in metallurgical wastewater | |
| as Hotspots | Check for Wastewater Treatment Plants as Hotspots of Microplastic Pollution Nilam A. Salunkhe-Patil, Pranjali Mahamuni-Badiger, Maruti J. Dhanavade, and Mudasir Ahmad Dar | |
| KR102509225B1 (en) | Method for continuous removal of heavy metals and continuous bioreduction process including the same | |
| KR20030052376A (en) | Wastewater treatment method using slag and briquette of ash | |
| KR0151923B1 (en) | Flocculant making use of pulp sludge ash and method for producing the same | |
| Isa et al. | Fe removal by adsorption using ash from oil palm factory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20120323 Year of fee payment: 6 |
|
| FPAY | Annual fee payment |
Payment date: 20130404 Year of fee payment: 7 |
|
| LAPS | Lapse due to unpaid annual fee |