KR20120008557A - Method for manufacturing standardization product by using sludge - Google Patents

Method for manufacturing standardization product by using sludge Download PDF

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Publication number
KR20120008557A
KR20120008557A KR1020100069284A KR20100069284A KR20120008557A KR 20120008557 A KR20120008557 A KR 20120008557A KR 1020100069284 A KR1020100069284 A KR 1020100069284A KR 20100069284 A KR20100069284 A KR 20100069284A KR 20120008557 A KR20120008557 A KR 20120008557A
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South Korea
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sludge
dried
product
purified
viscosity
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KR1020100069284A
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Korean (ko)
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오철
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박성희
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    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/14—Colouring matters
    • 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
    • C04B33/00—Clay-wares
    • C04B33/30—Drying methods
    • 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
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/44—Thickening, gelling or viscosity increasing agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

PURPOSE: A method for manufacturing standardized products using water purification sludge is provided to manufacture construction materials by using sludge generated after a water purifying process in a water purifying facility. CONSTITUTION: A method for manufacturing standardized products using water purification sludge includes the following: sludge filtered from water purification sludge is dried(S10); a thickening agent is mixed with the dried sludge to increase the viscosity of the dried sludge(S12); natural materials containing loess, terra alba, and other materials is selectively mixed with the dried sludge to increase the viscosity of the dried sludge and obtain desired color; the sludge of the increased viscosity is introduced into a shaping unit and undergoes vacuum treatment to obtain standardized products(S14); the standardized products are dried in a drying furnace(S16); the dried standardized products are baked(S18).

Description

정수슬러지를 이용한 정형화제품 제조방법{Method for manufacturing standardization product by using sludge}Method for manufacturing standardization product by using sludge}

본 발명은 정수시설의 슬러지(sludge)를 이용한 정형화제품(standardization product) 제조방법에 관한 것으로, 특히, 크락샤, 폐수처리장, 정수처리장, 및 하수처리장 등 모든 정수시설의 정수공정 후 필연적으로 생성되는 슬러지를 이용하여 건축자재 등 정형화제품을 생산하기 위한 정수슬러지를 이용한 정형화제품 제조방법에 관한 것이다.
The present invention relates to a method for manufacturing a standardization product using sludge of water purification facilities, and in particular, is inevitably generated after the water purification process of all water purification facilities, such as crushers, wastewater treatment plants, water treatment plants, and sewage treatment plants. The present invention relates to a method for manufacturing a formalized product using purified sludge for producing a formalized product such as building materials using sludge.

일반적으로 수도정수장, 산업현장의 폐수 및 가정의 생활하수에서 다량으로 발생하게 되는 슬러지는 매우 다양하고, 그 종류 또한 여러 가지이며 특히 산업의 발달 및 생활환경의 변화에 따라 발생되는 슬러지 양이 상당히 증가되고 있는 추세이다.In general, a large amount of sludge is generated in waterworks, industrial wastewater, and household sewage, and there are various types of sludge, and the amount of sludge generated by industrial development and changes in living environment is considerably increased. It is becoming a trend.

한편, 상기 각종 정수시설로부터 얻어지게 되는 슬러지는 그 자체에 각종 유해물질이 함유되어 있을 뿐만 아니라, 상당한 악취를 발생시키게 되기 때문에 그 처리의 방법에 많은 곤란성을 야기시키게 된다.On the other hand, the sludge obtained from the above various water purification facilities not only contains various harmful substances in itself, but also generates considerable odor, which causes a lot of difficulties in the method of treatment.

이와 같은 슬러지를 처리하기 위한 특별한 방법은 없으며, 대부분의 슬러지를 매립하고 있는 실정이다.There is no special method for treating such sludge, and most of the sludge is landfilled.

전술된 바와 같이 대부분의 슬러지를 매립함에 따라 슬러지에 포함된 각종 유해물질(중금속 등)이 토양을 심각하게 오염시키게 됨은 물론, 인체에 매우 유해한 침출수를 방출시키게 되기 때문에 수질(지하수)이 오염되며, 이와 같은 문제로 매립지확보에도 많은 곤란성을 야기시키고 있다.
As described above, as most of the sludge is landfilled, various harmful substances (heavy metals, etc.) contained in the sludge not only seriously pollute the soil, but also release leachate which is very harmful to the human body, which contaminates water quality (ground water). Such problems have caused many difficulties in securing landfills.

예로, 정수장에서 정수공정 후 슬러지가 필연적으로 생성된다.For example, sludge is inevitably generated after a water purification process in a water purification plant.

이와 같은 슬러지를 별다른 처리과정 없이 바로 매립할 경우 환경에 상당한 악영향을 끼치기 때문에, 슬러지와 양질의 흙을 50 대 50으로 섞어 매립하게 되는데, 이 경우에도 환경오염을 방지할 수 없고 슬러지 처리를 위한 비용만 가중시키게 된다.
If the sludge is landfilled without any special treatment, it will adversely affect the environment, so the sludge and the good soil will be mixed with 50 to 50. Even in this case, environmental pollution cannot be prevented and the cost for sludge treatment Only weighted.

본 발명은 전술한 과제를 해결하기 위하여 안출한 것으로, 크락샤, 폐수처리장, 정수처리장, 및 하수처리장 등 모든 정수시설의 정수공정 후 필연적으로 생성되는 슬러지를 이용하여 건축자재 등 정형화제품을 생산하기 위한 정수슬러지를 이용한 정형화제품 제조방법을 제공하는 데 그 목적이 있다.
The present invention has been made in order to solve the above problems, to produce a standardized product, such as building materials using sludge generated inevitably after the water purification process of all water purification facilities, such as crusher, wastewater treatment plant, water treatment plant, and sewage treatment plant. An object of the present invention is to provide a method for producing a formalized product using purified sludge.

이와 같은 목적을 달성하기 위하여,In order to achieve this object,

본 발명의 일 형태에 따르면,According to one embodiment of the present invention,

정수슬러지를 이용하여 정형화제품을 제조하는 방법으로서,As a method of manufacturing a formalized product using purified sludge,

정수슬러지가 슬러지와 물로 여과된 것 중 상기 슬러지를 건조시키는 제1 단계;A first step of drying the sludge out of purified sludge filtered with sludge and water;

상기 건조된 슬러지에 증점제를 섞어 상기 건조된 슬러지의 점도를 높이고, 원하는 색을 시현하고 점도를 더 높이기 위해 황토, 백토, 석분토, 산청토를 포함하는 자연재료를 10% 내지 50%의 비율로 선택적으로 혼합하는 제2 단계;In order to increase the viscosity of the dried sludge by adding a thickener to the dried sludge, to achieve the desired color and to increase the viscosity, natural materials including ocher, white clay, stone dust, and fresh blue soil are selected at a ratio of 10% to 50%. Mixing with a second step;

상기 점도를 높인 슬러지를 성형기에 넣고 높은 진공처리를 통해 슬러지 내 공기를 포함하는 잔류 가스를 제거해서 상기 슬러지의 점도를 더 높여 해당 정형화제품을 만드는 제3 단계;A third step of adding the sludge with the increased viscosity to a molding machine to remove residual gas containing air in the sludge through a high vacuum treatment to further increase the viscosity of the sludge to make the shaped product;

상기 제3 단계에서 만들어진 정형화제품을 습도 40%미만, 온도 40℃ 내지 70℃의 건조로에서 건조시키는 제4 단계; 및A fourth step of drying the shaping product made in the third step in a drying furnace having a humidity of less than 40% and a temperature of 40 ° C. to 70 ° C .; And

상기 제4 단계에서 건조된 정형화제품을 가마에서 각 온도별로 굽는 제5 단계;A fifth step of baking the formalized product dried in the fourth step at each temperature in a kiln;

를 포함하는 것을 특징으로 한다.
Characterized in that it comprises a.

상기 제1 단계의 건조된 슬러지는 수분이 8% 내지 13%인 것을 특징으로 한다.
The dried sludge of the first step is characterized in that the moisture of 8% to 13%.

상기 성형기의 진공도는 650mHg 이상인 것을 특징으로 한다.
The vacuum degree of the molding machine is characterized in that more than 650mHg.

상기 정형화제품은 벽돌, 보도블록, 인공어초, 타일, 및 인공돌을 포함하는 것을 특징으로 한다.
The formalized product is characterized in that it comprises a brick, walkway blocks, artificial reefs, tiles, and artificial stones.

상기 제4 단계의 건조된 정형화제품의 수분이 3%미만인 것을 특징으로 한다.
The moisture of the dried formalized product of the fourth step is less than 3%.

상기 제5 단계는 자연 그대로의 기온에서 300℃까지 1시간 동안, 이어서 400℃까지 1시간 동안, 이어서 500℃까지 30분 동안, 이어서 600℃까지 1시간 동안, 및 이어서 1080℃까지 3시간 30분 내지 4시간 동안 차례로 굽는 것을 특징으로 한다.
The fifth step is for one hour up to 300 ° C. for 1 hour, then for one hour up to 400 ° C., for 30 minutes up to 500 ° C., then for one hour up to 600 ° C., and then up to 1080 ° C. for three hours 30 minutes. It is characterized by baking for 4 hours.

본 발명은, 크락샤, 폐수처리장, 정수처리장, 및 하수처리장 등 모든 정수시설의 정수공정 후 필연적으로 생성되는 슬러지를 이용하여 건축자재 등 정형화제품을 생산하기 때문에, 슬러지를 매립할 필요가 없어 환경오염이 방지되고 슬러지 처리를 위한 비용도 소요되지 않아 경제적인 효과가 있다.
The present invention uses the sludge generated inevitably after the water purification process of all water purification facilities such as crushers, wastewater treatment plants, water treatment plants, and sewage treatment plants to produce standardized products such as construction materials, so that the sludge does not need to be landfilled. It is economical because contamination is prevented and the cost of sludge treatment is not required.

도 1은 본 발명에 따른 정수슬러지를 이용한 정형화제품 제조방법의 일 실시 예를 단계별로 나타낸 공정도이다.1 is a process chart showing step by step an embodiment of a method for producing a shaping product using water purification sludge according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 따른 실시 예를 상세히 설명하면 다음과 같다.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 정수슬러지를 이용한 정형화제품 제조방법의 일 실시 예를 단계별로 나타낸 공정도이다.1 is a process chart showing step by step an embodiment of a method for producing a shaping product using water purification sludge according to the present invention.

먼저 정수슬러지를 필터프레스를 사용하여 여과해서 슬러지와 물로 분리시키고 여과된 슬러지를 해당 슬러지처리공장으로 수송한다. 이때 여과된 슬러지는 수분이 20%이다.First, the purified sludge is filtered using a filter press, separated into sludge and water, and the filtered sludge is transported to the sludge treatment plant. At this time, the filtered sludge has 20% moisture.

다음 슬러지처리공장에서 수송된 슬러지를 건조시켜 슬러지의 수분이 8% 내지 13%가 되도록 한다(단계 S10).Next, the sludge transported from the sludge treatment plant is dried so that the water content of the sludge is 8% to 13% (step S10).

단계(S10)에서 건조된 슬러지에 증점제를 섞어 건조된 슬러지의 점도를 높이고, 원하는 색을 시현하고 점도를 더 높이기 위해 황토, 백토, 석분토, 산청토를 포함하는 자연재료를 10% 내지 50%의 비율로 선택적으로 혼합한다(단계 S12).In step (S10) by mixing the thickener in the dried sludge to increase the viscosity of the dried sludge, to achieve the desired color and to increase the viscosity of natural materials including loess, white clay, stone clay, and fresh blue soil 10% to 50% Mixing is performed selectively at a ratio (step S12).

단계(S12)에서 점도를 높인 슬러지를 성형기에 넣고 성형기의 진공도를 650mHg 이상으로 설정하여 슬러지 내 공기를 포함하는 잔류 가스를 제거해서 상기 슬러지의 점도를 더 높여 벽돌 등 해당 정형화제품을 만든다(단계 S14). 정형화제품은 벽돌, 보도블록, 인공어초, 타일, 및 인공돌 등을 포함한다. 이때 인공어초는 물고기가 많이 모이도록 하기 위한 블록 등을 의미한다.In step S12, the sludge with the increased viscosity is put into the molding machine, and the vacuum degree of the molding machine is set to 650 mHg or more to remove residual gas containing air in the sludge to increase the viscosity of the sludge to make the corresponding shaping product such as brick (step S14). ). Formal products include bricks, sidewalk blocks, artificial reefs, tiles, and artificial stones. At this time, the artificial reef means a block for collecting a lot of fish.

단계(S14)에서 만들어진 정형화제품을 습도 40%미만, 온도 40℃ 내지 70℃의 건조로에서 건조시켜 정형화제품의 수분이 3%미만이 되도록 한다(단계 S16).The shaping product made in step S14 is dried in a drying furnace with a humidity of less than 40% and a temperature of 40 ° C to 70 ° C so that the moisture of the shaping product is less than 3% (step S16).

단계(S16)에서 건조된 정형화제품을 가마에서 각 온도별로 굽는다(단계 S18). 예로, 자연 그대로의 기온에서 300℃까지 1시간 동안, 이어서 400℃까지 1시간 동안, 이어서 500℃까지 30분 동안, 이어서 600℃까지 1시간 동안, 및 이어서 1080℃까지 3시간 30분 내지 4시간 동안 차례로 굽는 것을 특징으로 한다.
The formalized product dried in step S16 is baked for each temperature in a kiln (step S18). For example, at natural temperature for 1 hour up to 300 ° C., then 1 hour up to 400 ° C., then 30 minutes up to 500 ° C., then 1 hour up to 600 ° C., and then 3 hours 30 minutes to 4 hours up to 1080 ° C. It is characterized by baking in turn.

이와 같은 본 발명은 크락샤, 폐수처리장, 정수처리장, 및 하수처리장 등 모든 정수시설의 정수공정 후 필연적으로 생성되는 슬러지를 이용하여 건축자재 등 정형화제품을 생산하기 때문에, 슬러지를 매립할 필요가 없어 환경오염이 방지되고 슬러지 처리를 위한 비용도 소요되지 않아 경제적인 장점이 있다.
As such, the present invention uses the sludge generated inevitably after the water purification process of all water purification facilities such as crushers, wastewater treatment plants, water treatment plants, and sewage treatment plants to produce standardized products such as building materials. There is an economic advantage because environmental pollution is prevented and no cost for sludge treatment is required.

이상에서 본 발명에 대한 기술사상을 첨부도면과 함께 서술하였지만 이는 본 발명의 바람직한 실시 예를 예시적으로 설명한 것이지 본 발명을 한정하는 것은 아니다. 또한, 이 기술분야의 통상의 지식을 가진 자라면 누구나 본 발명의 기술사상의 범주를 이탈하지 않는 범위 내에서 다양한 변형 및 모방이 가능함은 명백한 사실이다.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (6)

정수슬러지를 이용하여 정형화제품을 제조하는 방법으로서,
정수슬러지가 슬러지와 물로 여과된 것 중 상기 슬러지를 건조시키는 제1 단계;
상기 건조된 슬러지에 증점제를 섞어 상기 건조된 슬러지의 점도를 높이고, 원하는 색을 시현하고 점도를 더 높이기 위해 황토, 백토, 석분토, 산청토를 포함하는 자연재료를 10% 내지 50%의 비율로 선택적으로 혼합하는 제2 단계;
상기 점도를 높인 슬러지를 성형기에 넣고 높은 진공처리를 통해 슬러지 내 공기를 포함하는 잔류 가스를 제거해서 상기 슬러지의 점도를 더 높여 해당 정형화제품을 만드는 제3 단계;
상기 제3 단계에서 만들어진 정형화제품을 습도 40%미만, 온도 40℃ 내지 70℃의 건조로에서 건조시키는 제4 단계; 및
상기 제4 단계에서 건조된 정형화제품을 가마에서 각 온도별로 굽는 제5 단계;
를 포함하는 것을 특징으로 하는 정수슬러지를 이용한 정형화제품 제조방법.
As a method of manufacturing a formalized product using purified sludge,
A first step of drying the sludge out of purified sludge filtered with sludge and water;
In order to increase the viscosity of the dried sludge by adding a thickener to the dried sludge, to achieve the desired color and to increase the viscosity, natural materials including ocher, white clay, stone dust, and fresh blue soil are selected at a ratio of 10% to 50%. Mixing with a second step;
A third step of adding the sludge with the increased viscosity to a molding machine to remove residual gas containing air in the sludge through a high vacuum treatment to further increase the viscosity of the sludge to make the shaped product;
A fourth step of drying the shaping product made in the third step in a drying furnace having a humidity of less than 40% and a temperature of 40 ° C. to 70 ° C .; And
A fifth step of baking the formalized product dried in the fourth step at each temperature in a kiln;
Formulation product manufacturing method using a purified water sludge, characterized in that it comprises a.
청구항 1에 있어서,
상기 제1 단계의 건조된 슬러지는 수분이 8% 내지 13%인 것을 특징으로 하는 정수슬러지를 이용한 정형화제품 제조방법.
The method according to claim 1,
The dried sludge of the first step is a method for producing a purified product using purified sludge, characterized in that the water is 8% to 13%.
청구항 1에 있어서,
상기 성형기의 진공도는 650mHg 이상인 것을 특징으로 하는 정수슬러지를 이용한 정형화제품 제조방법.
The method according to claim 1,
The vacuum degree of the molding machine is a method for producing a shaping product using purified sludge, characterized in that more than 650mHg.
청구항 1에 있어서,
상기 정형화제품은 벽돌, 보도블록, 인공어초, 타일, 및 인공돌을 포함하는 것을 특징으로 하는 정수슬러지를 이용한 정형화제품 제조방법.
The method according to claim 1,
The shaping product is a method of manufacturing a shaping product using purified sludge, characterized in that it comprises a brick, sidewalk blocks, artificial reefs, tiles, and artificial stones.
청구항 1에 있어서,
상기 제4 단계의 건조된 정형화제품의 수분이 3%미만인 것을 특징으로 하는 정수슬러지를 이용한 정형화제품 제조방법.
The method according to claim 1,
Method for producing a shaping product using purified sludge, characterized in that the moisture of the dried shaping product of the fourth step is less than 3%.
청구항 1에 있어서,
상기 제5 단계는 자연 그대로의 기온에서 300℃까지 1시간 동안, 이어서 400℃까지 1시간 동안, 이어서 500℃까지 30분 동안, 이어서 600℃까지 1시간 동안, 및 이어서 1080℃까지 3시간 30분 내지 4시간 동안 차례로 굽는 것을 특징으로 하는 정수슬러지를 이용한 정형화제품 제조방법.
The method according to claim 1,
The fifth step is for one hour up to 300 ° C. for 1 hour, then for one hour up to 400 ° C., for 30 minutes up to 500 ° C., then for one hour up to 600 ° C., and then up to 1080 ° C. for three hours 30 minutes. Method for producing a shaping product using purified sludge, characterized in that to bake sequentially for 4 hours.
KR1020100069284A 2010-07-19 2010-07-19 Method for manufacturing standardization product by using sludge KR20120008557A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101241758B1 (en) * 2012-09-27 2013-03-13 강진봉황옹기주식회사 Method for manufacturing loess earthenware soil plate for saltern flooring
CN104609834A (en) * 2015-01-19 2015-05-13 广东科达洁能股份有限公司 Porcelain tile
CN105060663A (en) * 2015-07-25 2015-11-18 合肥智凯电子科技有限公司 Environment-friendly resource-recovery sludge processing and brick producing system
WO2020135977A1 (en) 2018-12-24 2020-07-02 Arcelik Anonim Sirketi Cooling appliance having a top panel cover

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101241758B1 (en) * 2012-09-27 2013-03-13 강진봉황옹기주식회사 Method for manufacturing loess earthenware soil plate for saltern flooring
CN104609834A (en) * 2015-01-19 2015-05-13 广东科达洁能股份有限公司 Porcelain tile
CN105060663A (en) * 2015-07-25 2015-11-18 合肥智凯电子科技有限公司 Environment-friendly resource-recovery sludge processing and brick producing system
WO2020135977A1 (en) 2018-12-24 2020-07-02 Arcelik Anonim Sirketi Cooling appliance having a top panel cover

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