KR101500656B1 - Clay ball with chloride and method for fabricating the same and method for regeneration of the same - Google Patents
Clay ball with chloride and method for fabricating the same and method for regeneration of the same Download PDFInfo
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- KR101500656B1 KR101500656B1 KR1020130076722A KR20130076722A KR101500656B1 KR 101500656 B1 KR101500656 B1 KR 101500656B1 KR 1020130076722 A KR1020130076722 A KR 1020130076722A KR 20130076722 A KR20130076722 A KR 20130076722A KR 101500656 B1 KR101500656 B1 KR 101500656B1
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
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Abstract
본 발명은 녹조 제거 기능을 갖는 황토에 염소기(Cl-)를 담지시켜 인산염 및 질산염 제거효율을 극대화할 수 있는 염소기를 구비한 황토볼 및 그 제조방법과 재생방법에 관한 것으로서, 본 발명에 따른 염소기가 구비된 황토볼의 제조방법은 황토 분말을 준비하는 단계와, 황토 분말과 물을 혼합, 반죽한 다음, 일정 형상으로 성형한 후 소성하여 황토볼을 형성하는 단계와, 상기 황토볼을 염산 수용액에 침지시켜 황토볼의 표면 및 기공에 염소기(Cl-)를 흡착시키는 단계 및 상기 염소기가 흡착된 황토볼을 가열하여, 황토볼 내의 수소 이온 성분을 제거함과 함께 염소기를 고정화하는 단계를 포함하여 이루어지는 것을 특징으로 한다. 또한, 녹조가 발생한 하천 수계에 적용시, ball type의 본 발명 소재를 격자망에 넣어 쉽게 투입 및 회수가 용이하여 수환경을 교란시키지 않을 수 있다.The present invention relates to a loess ball having a chlorine group capable of maximizing the efficiency of removing phosphate and nitrate by supporting a chlorine group (Cl-) on a loess having a function of removing green algae, a method for producing the loess ball, and a regeneration method. A method for producing a loess ball having a chlorine group comprises the steps of preparing a loess powder, mixing and kneading the loess powder with water, molding the loess ball into a predetermined shape and then firing to form a loess ball, (C1-) on the surface and pores of the loess ball and heating the loess ball adsorbed by the chlorine group to remove the hydrogen ion component in the loess ball and immobilizing the chlorine group . In addition, when applied to a river water system in which green tide is generated, the ball material of the present invention can be easily inserted and collected in a lattice network, thereby not disturbing the water environment.
Description
본 발명은 염소기를 구비한 황토볼 및 그 제조방법과 재생방법에 관한 것으로서, 보다 상세하게는 녹조 제거 기능을 갖는 황토에 염소기(Cl-)를 담지시켜 인산염 및 질산염과 같은 녹조 유발 원인 물질의 제거효율을 극대화하는 것과 동시에 재회수를 통해 수환경에 영향을 최소화 할 수 있는 염소기를 구비한 황토볼 및 그 제조방법과 재생방법에 관한 것이다.
The present invention relates to a loess ball having a chlorine group, and a method for producing and regenerating the loess ball. More particularly, the present invention relates to a loess ball having a chlorosurfacting function and a chlorine group (Cl - The present invention relates to a loess ball having a chlorine group capable of maximizing the removal efficiency and minimizing the influence on the water environment through re-circulation, and a manufacturing method and a regeneration method thereof.
최근 부영양화된 호소 및 유속이 느린 하천에서 녹조류와 남조류가 급속히 성장하여 녹조 현상으로 인한 수생태계 오염이 대두되고 있다. 녹조가 발생하게 되면 수중으로 태양광이 차단되고 용존산소의 함량이 급속히 감소되어 수중생물의 사멸과 부패로 인한 생태계 파괴가 가속화된다. 이를 제거하기 위한 기법으로 황토 살포가 이루어지고 있는데, 과다하게 살포될 경우 어류의 호흡기에 영향을 주어 집단 폐사 시킬 수 있다는 문제점과 하상 바닥에 퇴적된 후 부패되어 발생할 수 있는 문제점 등을 안고 있다. Recently, green algae and cyanobacteria are rapidly growing in rivers with slow eutrophication and flow rate, and aquatic ecosystem pollution is emerging due to the algae phenomenon. When green algae occur, sunlight is blocked in the water and the content of dissolved oxygen is rapidly reduced, accelerating destruction of ecosystem due to the death and corruption of aquatic organisms. As a technique to remove it, loess is sprayed, and when it is sprayed excessively, it affects the respiratory system of the fish, and it causes the problem of mass death, and the problems that may be caused by being corrupted after being deposited on the bottom of the river bed.
이러한 녹조의 주된 원인 가운데 하나인, 하천으로 배출되는 하수 내 인산염과 질산염을 제거하는 방법으로 생물학적 제거방법, 응집-침전법, 결정법, 흡착법 등이 있으며 이 중, 생물학적 제거방법과 응집-침전법이 널리 이용되고 있다. 그러나, 생물학적 제거방법은 처리 후의 수질이 수 mg P/L로 다소 높게 유지되고 처리효율이 낮은 단점이 있다. Biological removal methods, coagulation - sedimentation method, crystallization method, and adsorption method are the methods of removing phosphates and nitrates in sewage discharged to rivers, which are one of the main causes of green algae. Among them, biological removal method and coagulation - sedimentation method It is widely used. However, the biological removal method has a disadvantage in that the water quality after treatment is maintained at a high level of several mg P / L and the treatment efficiency is low.
한편, 인산염과 질산염의 물리화학적 처리방법으로 응집제를 이용한 응집-침전법은 공정의 간편성과 높은 효율로 인해 가장 많이 사용되고 있다. 응집-침전법의 경우 인을 저농도까지 제거할 수 있지만 안정적인 처리효율을 달성하기 위해서는 다량의 약품이 필요하여 운영경비가 상승하는 등의 문제가 있다. 또한, 발생된 폐슬러지의 처리에 많은 비용이 소모되고 그 처분방법에 대하여 아직까지 환경 친화적인 처리대안이 없는 상태이다. On the other hand, the coagulation - precipitation method using coagulant by the physicochemical treatment method of phosphate and nitrate is most used because of simplicity of process and high efficiency. In the case of the flocculation-precipitation method, phosphorus can be removed to a low concentration. However, in order to achieve a stable treatment efficiency, a large amount of chemicals are required, which raises operational expenses. In addition, the disposal of the waste sludge is costly and there is no environmentally friendly treatment option for the disposal method.
이상의 생물학적 제거법 및 응집-침전법은 모두 넓은 설치면적을 필요로 하며 다량의 오니가 발생하는 등의 문제가 있고 또한, 제거된 인의 회수-재자원화도 곤란하다. 결정법은 수중의 인산염을 칼슘하이드록시아파타이트로서 제거하기 때문에 비료로서 이용 가능하지만 복잡한 전처리가 필요하기 때문에 실용화 사례가 적다. Both the biological removal method and the flocculation-precipitation method require a wide installation area, and there is a problem that a large amount of sludge is generated, and recovery of the removed phosphorus - recycling is also difficult. The crystallization method can be used as a fertilizer because it removes phosphoric acid in water as calcium hydroxyapatite, but it requires a complicated pretreatment, so there are few practical examples.
흡착법은 흡착제를 이용하여 수중의 부영양 유발물질(인산염, 질산염)을 제거하는 방법으로서, 일반적으로 지르코늄 메조구조체가 흡착제로 널리 이용되고 있다. 한국특허출원 제2007-99호는 입상 지르코늄 메조구조체의 제조방법을 제시하고 있고, 구체적으로 분말 지르코늄 메조구조체와 소듐 알지네이트를 이용하여 입상 지르코늄 메조구조체를 제조하고 이를 통해 수중의 인을 흡착, 제거하는 방법을 기재하고 있다. 그러나, 지르코늄 자체의 단가가 매우 높아 분말 지르코늄 메조구조체 및 입상 지르코늄 메조구조체의 상업적 이용을 제한하는 요인으로 작용하고 있다.
The adsorption method is a method for removing an adrenaline-inducing substance (phosphate, nitrate) in water by using an adsorbent, and zirconium meso structure is generally widely used as an adsorbent. Korean Patent Application No. 2007-99 discloses a method for producing a granular zirconium meso structure. Specifically, a granular zirconium meso structure is prepared using a powder zirconium meso structure and sodium alginate, and adsorbed and removed phosphorus Method. However, the unit price of zirconium itself is very high, thus restricting commercial use of powder zirconium mesostructures and granular zirconium mesostructures.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 녹조 제거 기능을 갖는 황토에 염소기(Cl-)를 담지시켜 녹조 유발원인 물질인 인산염과 질산염 제거효율을 극대화하는 것과 동시에 소재 자체를 재회수하여 수환경에 영향을 최소화 할 수 있는 염소기를 구비한 황토볼 및 그 제조방법과 재생방법을 제공하는데 그 목적이 있다.
Disclosure of the Invention The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method for removing phosphorus and nitrate, which is a cause of green algae, by carrying chlorine group (Cl & And to provide a method for producing the same, and a method for regenerating the same.
상기의 목적을 달성하기 위한 본 발명에 따른 염소기가 구비된 황토볼의 제조방법은 황토 분말을 준비하는 단계와, 황토 분말과 물을 혼합, 반죽한 다음, 일정 형상으로 성형한 후 소성하여 황토볼을 형성하는 단계와, 상기 황토볼을 염산 수용액에 침지시켜 황토볼의 표면 및 기공에 염소기(Cl-)를 흡착시키는 단계, 그리고 상기 염소기가 흡착된 황토볼을 가열하여, 황토볼 내의 수소 이온 성분을 제거함과 함께 염소기를 고정화하는 단계를 포함하여 이루어지는 것을 특징으로 한다. In order to accomplish the above object, the present invention provides a method for manufacturing a loess ball having a chlorine group, comprising the steps of preparing a loess powder, mixing and kneading the loess powder and water, molding the loess ball into a predetermined shape, (Cl <">) on the surface and pores of the loess ball by immersing the loess ball in an aqueous hydrochloric acid solution, heating the loess ball adsorbed by the chlorine group, And removing the component and immobilizing the chlorine group.
상기 황토볼의 가열은 95∼105℃의 온도 하에서 진행되며, 상기 염산 수용액은 5∼15v/v%이다. The heating of the loess balls proceeds at a temperature of 95 to 105 DEG C, and the aqueous hydrochloric acid solution is 5 to 15 v / v%.
본 발명에 따른 염소기를 구비한 황토볼은 황토 분말과 물을 섞어 성형, 소성한 황토볼을 5∼15v/v%의 염산 수용액에 침지시켜 염소기(Cl-)가 황토볼에 흡착되도록 한 다음, 95∼105℃의 온도로 가열시켜 제조된 것을 특징으로 한다. The loess balls having a chlorine group according to the present invention are prepared by dipping a loess ball in a form of a mixture of loess powder and water in an aqueous hydrochloric acid solution of 5 to 15 v / v% so that the chlorine group (Cl - ) is adsorbed on the loess ball , And heating at a temperature of 95 to 105 占 폚.
본 발명에 따른 염소기를 구비한 황토볼의 재생방법은 염소기를 구비한 황토볼의 재생방법에 있어서, 상기 염소기를 구비한 황토볼을 5∼15v/v% 염화나트륨 수용액에 침지시켜 황토볼 표면에 포집된 인산염 및 질산염을 제거하며, 상기 염소기를 구비한 황토볼은, 황토 분말과 물을 섞어 성형, 소성한 황토볼을 5∼15v/v%의 염산 수용액에 침지시켜 염소기(Cl-)가 황토볼에 흡착되도록 한 다음, 95∼105℃의 온도로 가열시켜 제조된 것을 특징으로 한다.
A method for regenerating a loess ball having a chlorine group according to the present invention is a method for regenerating a loess ball having a chlorine group, wherein the loess ball having the chlorine group is immersed in an aqueous solution of 5 to 15 v / v% (Cl - ) is dissolved in an aqueous solution of an aldehyde (Cl - ) in an aqueous hydrochloric acid solution at a concentration of 5 to 15 v / v% by mixing the loess balls, which are formed by mixing the loess powder and water, And then heated to a temperature of 95 to 105 캜.
본 발명에 따른 염소기를 구비한 황토볼 및 그 제조방법과 재생방법은 다음과 같은 효과가 있다. The yellow loam ball having a chlorine group according to the present invention, and its manufacturing method and regeneration method have the following effects.
미세기공이 풍부한 황토볼에 염소기를 도입함으로써, 황토 고유의 녹조 제거 특성을 그대로 유지함과 함께 염소기에 의한 인산염과 질산염 이온교환을 통해 인 및 질소 제거효율을 극대화할 수 있게 된다. 또한, 인산염 및 질산염이 포집된 황토볼을 소정의 처리를 통해 재생 가능하도록 함으로써 재이용 특성을 향상시킬 수 있다.
By introducing the chlorine group into the fine pore-rich loess balls, the phosphorus and nitrogen removal efficiency can be maximized through the exchange of phosphate and nitrate ions by the chlorine group, while retaining the algae-removing characteristics inherent in the loess. In addition, the recycling characteristics can be improved by allowing the loess balls, in which the phosphate and nitrate are collected, to be regenerated through a predetermined treatment.
도 1은 본 발명의 일 실시예에 따른 염소기를 구비한 황토볼의 제조방법을 설명하기 위한 순서도.
도 2는 본 발명의 일 실시예에 따라 제조된 염소기를 구비한 황토볼의 사진.
도 3은 FESEM(field emission scanning electron microscope)를 이용한 <염소기가 구비되지 않은 황토볼>과 <염소기가 구비된 황토볼> 및 <재생 과정을 거친 황토볼>의 표면 원소분석결과.
도 4는 <염소기가 구비되지 않은 황토볼>과 <염소기가 구비된 황토볼>의 평행배치 실험결과. 1 is a flowchart illustrating a method of manufacturing a loess ball having a chlorine group according to an embodiment of the present invention.
2 is a photograph of a loess ball having a chlorine group manufactured according to an embodiment of the present invention.
FIG. 3 shows the result of surface element analysis of <loess ball not containing chlorine group>, <loess ball containing chlorine group> and <loess ball after regeneration process> using field emission scanning electron microscope (FESEM).
FIG. 4 is a result of parallel placement of the <loess ball with no chlorine group> and <loess ball with chlorine group>.
이하, 도면을 참조하여 본 발명의 일 실시예에 따른 염소기를 구비한 황토볼 및 그 제조방법과 재생방법을 상세히 설명하기로 한다. 도 1은 본 발명의 일 실시예에 따른 염소기를 구비한 황토볼 제조방법을 설명하기 위한 순서도이다. Hereinafter, a loess ball having a chlorine group according to an embodiment of the present invention, a method of manufacturing the same, and a method of reproducing the same will be described in detail with reference to the drawings. 1 is a flowchart illustrating a method for manufacturing a loess ball having a chlorine group according to an embodiment of the present invention.
도 1을 참조하면, 먼저 황토 분말을 준비한다(S101). 이 때, 상기 황토 분말은 16번(1130㎛)∼28번(577㎛) 메쉬체를 통과할 정도의 크기를 갖는 것이 바람직하다. 황토는 자연물질로서 비표면적이 크고 미세 세공이 발달되어 있으며, Al3+, Fe3+, Ca2+ 등 다(多)가의 양이온 함량이 풍부하여 수중의 인산염, 질산염 및 중금속의 제거에 사용된다. 참고로, 아래 표 1은 황토의 구성성분을 분석한 XRD(X-ray diffraction) 결과이다. Referring to FIG. 1, a loess powder is first prepared (S101). At this time, it is preferable that the loess powder has a size enough to pass through 16 (1130 탆) to 28 (577 탆) mesh bodies. Loess is a natural substance with large specific surface area and fine pores. It is rich in cationic contents such as Al 3+ , Fe 3+ , Ca 2+, etc., and is used to remove phosphates, nitrates and heavy metals in water . For reference, Table 1 below shows the results of XRD (X-ray diffraction) analysis of constituents of loess.
이어, 상기 일정 크기로 선별된 황토 분말을 증류수와 혼합, 반죽한다. 그런 다음, 필요한 형상 및 크기로 성형한 후 800∼1,000℃의 온도에서 소성하여 황토볼 형태를 완성한다(S102)(S103). 이 때, 상기 황토 분말과 증류수의 반죽 과정에서, 지푸라기 등 탄화되어 황토볼의 미세공 발달에 도움을 줄 수 있는 매질을 첨가할 수 있다. Then, the yellow loess powder having the predetermined size is mixed with distilled water and kneaded. Then, it is formed into a desired shape and size, and then baked at a temperature of 800 to 1,000 DEG C to complete the loess ball shape (S102) (S103). At this time, in the kneading process of the loess powder and the distilled water, a medium which can be carbonized such as straw and help the microball development of the loess ball can be added.
상기 황토볼이 완성된 상태에서, 완성된 황토볼을 염산 수용액에 침지시켜 황토볼의 표면 및 기공에 염소기(Cl-, chloride)가 흡착되도록 한다(S104). 이 때, 염소기(Cl-)의 흡착효율을 향상시키기 위해 5∼15v/v%의 염산 수용액을 이용하는 것이 바람직하다. 이어, 염소기(Cl-)가 흡착된 황토볼을 95∼105℃의 온도로 가열하여, 염소기를 고정화함과 함께 황토볼 내의 수소 이온 성분을 제거함으로써 염소기가 구비된 황토볼을 제조한다(S105)(도 2 참조). 염산(HCl)을 이용한 염소기(Cl-) 코팅은 110℃ 이상의 온도에서 휘발됨에 따라, 황토볼의 가열은 95~105℃의 온도 하에서 진행하는 것이 바람직하다. In a state where the loess ball is completed, the completed loess ball is immersed in an aqueous hydrochloric acid solution so that chlorine (Cl - , chloride) is adsorbed on the surface and pores of the loess ball (S104). At this time, it is preferable to use an aqueous hydrochloric acid solution of 5 to 15 v / v% to improve the adsorption efficiency of the chlorine group (Cl < - >). Next, the loess balls in which the chlorine group (Cl < - >) is adsorbed are heated to a temperature of 95 to 105 DEG C to fix the chlorine groups and remove the hydrogen ion components in the loess balls to produce loess balls equipped with chlorine groups ) (See Fig. 2). As the chlorine (Cl - ) coating using hydrochloric acid (HCl) is volatilized at a temperature of 110 ° C or higher, the heating of the loess balls preferably proceeds at a temperature of 95 to 105 ° C.
상기의 과정을 통해 염소기가 구비된 황토볼의 제조는 완료되며, 황토볼의 표면 및 기공에 구비된 염소기(Cl-)는 수중의 인 이온(PO4 3-, HPO4 2-) 및 질소 이온 (NO3 -)과 이온교환이 가능하다. 즉, 인산염과 질산염의 농도가 높은 하수처리시설 또는 하천수 내에 본 발명에 따른 염소기가 구비된 황토볼을 투입하게 되면, 황토 자체의 녹조 제거성능에 더해 염소기(Cl-)와 인/질소 이온의 이온교환 반응에 의해 인(P)과 질소(N) 제거효율이 향상된다. The chlorine group (Cl - ) provided on the surface and pores of the loess ball is converted into phosphorus ions (PO 4 3- , HPO 4 2- ) and nitrogen Ion (NO 3 - ) ion exchange is possible. That is, when a loess ball having a chlorine group according to the present invention is introduced into a wastewater treatment facility or river water having a high concentration of phosphate and nitrate, chlorine (Cl-) and phosphorus / nitrogen The ion exchange reaction improves the removal efficiency of phosphorus (P) and nitrogen (N).
한편, 본 발명에 따른 염소기를 구비한 황토볼은 표면에 포집된 인산염 및/또는 질산염을 제거함으로써 재생이 가능하다. 구체적으로, 인산염 및/또는 질산염이 포집된 황토볼을 5∼15v/v% 염화나트륨(NaCl) 수용액에 일정 시간 침지시키면 포집된 인산염 및/또는 질산염을 탈착시켜 황토볼을 재생시킬 수 있다(S106). On the other hand, the loess balls having a chlorine group according to the present invention can be regenerated by removing phosphates and / or nitrate salts collected on the surface. Specifically, if the loess balls in which phosphates and / or nitrates are collected are immersed in an aqueous solution of 5 to 15 v / v% sodium chloride (NaCl) for a predetermined time, the collected loess particles can be regenerated by desorbing the collected phosphates and / or nitrates (S106) .
이하에서는, 본 발명의 일 실시예에 따라 제조된 염소기를 구비한 황토볼의 특성 및 인산염 제거효율을 살펴보기로 한다.
Hereinafter, characteristics of a loess ball having a chlorine group manufactured according to an embodiment of the present invention and phosphate removal efficiency will be described.
<실험예><Experimental Example>
직경 5mm의 황토볼을 10v/v% 염산 수용액에 14시간 침지시킨 후, 100℃의 온도에서 3시간 동안 소성시켜, 염소기가 구비된 황토볼을 제조하였다. 이 때, 소성 조건은 승온과 강온 모두 4℃/min으로 진행하였다. A loess ball having a diameter of 5 mm was immersed in a 10 v / v% hydrochloric acid aqueous solution for 14 hours and then baked at a temperature of 100 캜 for 3 hours to prepare a loess ball having a chlorine group. At this time, the firing conditions were 4 ° C / min for both the temperature rise and the temperature decrease.
상기 실험예를 통해 제조된 염소기가 구비된 황토볼의 염소기 흡착 상태를 살펴보았다. 아래의 표 2과 도 3은 <염소기가 구비되지 않은 황토볼>(도 3의 (a) 참조)과 <염소기가 구비된 황토볼>(도 3의 (b) 참조)의 FESEM(field emission scanning electron microscope)를 이용한 원소분석결과이다. The chlorine adsorption state of the loess balls provided with the chlorine groups prepared through the above Experimental Example was examined. Table 2 and FIG. 3 below show the results of field emission scanning (FESEM) of <yellow soil ball without chlorine group (see FIG. 3A) and <yellow soil ball with chlorine group (see FIG. electron microscope).
표 2 및 도 3을 참고하면, <염소기가 구비되지 않은 황토볼>의 경우 실리콘(Si)과 산소(O)가 각각 20.90wt%, 56.44wt% 차지하고 있으나, 염소기 코팅 과정이 적용된 <염소기가 구비된 황토볼>의 경우 실리콘은 1.45wt%, 산소는 7.99wt%로 감소한 반면, 염소(Cl)는 54.18wt%를 나타내고 있어 황토볼의 표면 및 기공에 다량의 염소가 흡착되어 있음을 확인할 수 있다. 또한, 재생 과정을 거친 황토볼(도 3의 (c) 참조)의 경우 인산염 또는 질산염의 성분은 제거되고 염소(Cl) 성분만 나타냄을 확인할 수 있다.
In Table 2 and FIG. 3, it can be seen that silicon (Si) and oxygen (O) occupy 20.90 wt% and 56.44 wt%, respectively, in the case of <loess ball not provided with chlorine group> The amount of chlorine adsorbed on the surface and pores of the loess balls was found to be adsorbed on the surface of the loess balls because the amount of silicon was 1.45 wt% and the content of oxygen was 7.99 wt% while the content of chlorine (Cl) was 54.18 wt% have. In addition, in the case of the loess balls (see FIG. 3 (c)) after the regeneration process, it is confirmed that the phosphate or nitrate components are removed and only the chlorine (Cl) component is shown.
다음으로, 상기 실험예에 의해 제조된 <염소기가 구비된 황토볼>의 인산염 제거특성을 살펴보기 위해 평행배치 실험을 수행하였다. 도 4를 참고하면, <염소기가 구비된 황토볼>(도 4의 '●' 표시 참고)의 경우 단위질량당 최대 흡착량이 1.760mg/g인 반면, <염소기가 구비되지 않은 황토볼>(도 4의 '○' 표시 참고)의 경우 농도의 변화가 거의 발생되지 않음을 확인할 수 있다. 이 때, 평행배치 실험은 1, 2, 5, 10, 20mg/L의 인산염 초기농도를 갖는 하수를 대상으로 실시하였다. Next, in order to examine the phosphate removal characteristics of the <yellow soil ball with chlorine group> prepared by the above Experimental Example, a parallel arrangement experiment was performed. 4, the maximum adsorption amount per unit mass was 1.760 mg / g in the case of the <yellow soil ball with a chlorine group (see the symbol "" in FIG. 4), while <yellow soil ball with no chlorine group> 4), it can be confirmed that the change in the concentration hardly occurs. At this time, parallel placement experiments were performed on sewage having initial phosphate concentrations of 1, 2, 5, 10, and 20 mg / L.
Claims (5)
황토 분말과 물을 혼합, 반죽한 다음, 일정 형상으로 성형한 후 소성하여 황토볼을 형성하는 단계;
상기 황토볼을 염산 수용액에 침지시켜 황토볼의 표면 및 기공에 염소기(Cl-)를 흡착시키는 단계; 및
상기 염소기가 흡착된 황토볼을 가열하여, 황토볼 내의 수소 이온 성분을 제거함과 함께 염소기를 고정화하는 단계를 포함하여 이루어지는 것을 특징으로 하며,
상기 황토볼의 가열은 95∼105℃의 온도 하에서 진행되며,
상기 염산 수용액은 5∼15v/v%인 것을 특징으로 하는 염소기가 구비된 황토볼의 제조방법.
Preparing loess powder;
Mixing and kneading the loess powder with water, shaping the mixture into a predetermined shape, and firing to form loess balls;
The step of adsorbing-chlorine group (Cl) to the surface and pores of immersing the ocher seen in hydrochloric acid solution loess ball; And
Heating the loess ball on which the chlorine group has been adsorbed to remove the hydrogen ion component in the loess ball and fixing the chlorine group,
The heating of the loess balls proceeds at a temperature of 95 to 105 캜,
Wherein the aqueous hydrochloric acid solution is 5 to 15 v / v%.
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| KR100978589B1 (en) * | 2010-07-02 | 2010-08-27 | 한국과학기술연구원 | Zero-valent iron supported yellow soil ball and method for fabricating the same |
| CN102992414A (en) * | 2011-09-16 | 2013-03-27 | 关书瑶 | Production of water purification agent by using hydrochloric acid and loess |
| KR20130048097A (en) * | 2011-11-01 | 2013-05-09 | (주)미시간기술 | Activated absorption member, method of manufacturing the same, apparatus and method for water treatment using the activated absorption member |
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| KR100978589B1 (en) * | 2010-07-02 | 2010-08-27 | 한국과학기술연구원 | Zero-valent iron supported yellow soil ball and method for fabricating the same |
| CN102992414A (en) * | 2011-09-16 | 2013-03-27 | 关书瑶 | Production of water purification agent by using hydrochloric acid and loess |
| KR20130048097A (en) * | 2011-11-01 | 2013-05-09 | (주)미시간기술 | Activated absorption member, method of manufacturing the same, apparatus and method for water treatment using the activated absorption member |
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