CN110590392A - Ceramsite prepared from oily sludge and used for water treatment and preparation method thereof - Google Patents
Ceramsite prepared from oily sludge and used for water treatment and preparation method thereof Download PDFInfo
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0022—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors
- C04B38/0025—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors starting from inorganic materials only, e.g. metal foam; Lanxide type products
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- C04B38/063—Preparing or treating the raw materials individually or as batches
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
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Abstract
The invention discloses a ceramsite for water treatment prepared by utilizing oily sludge and a preparation method thereof, wherein the ceramsite for water treatment is mainly prepared from oily sludge with the water content of 45 ~ 55% after oil recovery, clay ore, a dispersing agent, a pore-forming agent, an additive and hematite.
Description
Technical Field
The invention relates to the field of preparation of fillers for water treatment, in particular to ceramsite for water treatment prepared from oily sludge and a preparation method thereof.
Background
The oily sludge has the characteristics of large production amount, high oil content, high heavy oil component, few comprehensive utilization modes, high treatment difficulty and the like, contains various pollutants, and generally has an oil content range of 5 percent ~ 45 percent.
The oily sludge is treated according to the principle of reduction, resource utilization and harmlessness. With the release and implementation of new environmental protection methods and the continuous emergence of novel oily sludge treatment technologies, the oily sludge treatment methods have diversified development trends, such as incineration treatment technologies, pyrolysis treatment technologies, ultrasonic treatment technologies, solvent extraction technologies, chemical hot washing technologies, solidification treatment technologies, biological treatment technologies and the like. For the oily sludge with high oil content, the technologies such as pyrolysis, extraction, hot washing and the like can recover oil to realize resource utilization, but the treated sludge components still have a problem to be solved urgently.
Researches show that the comprehensive utilization ways of the oily sludge also show diversified trends, and the oily sludge is mainly used as building materials (such as paving roadbeds, making bricks, protecting slopes, building dams and the like), producing fuels, manufacturing rubber fillers, manufacturing adsorbing materials and the like.
In the field of water treatment, ceramsite is often required, and according to the technical ceramsite filter material for water treatment (CJ/T-2008), the water treatment ceramsite filter material is a ceramic granular product which is prepared by crushing, compounding, forming and then sintering at high temperature by taking clay, fly ash, shale and the like as main raw materials. The ceramsite has hard surface, is spherical granular, has developed micropores, large specific surface area and high porosity, thereby having strong pollutant interception capability and high filtration rate. The ceramsite for water treatment can be divided into a water treatment filter material and a sewage treatment filter material according to different purposes.
Chinese patent CN109851323A discloses a ceramsite prepared by utilizing oil-containing sludge thermal desorption residues and a preparation method thereof, the method takes the oil-containing sludge thermal desorption residues as main raw materials, and prepares the ceramsite with light weight, high porosity, high cylinder pressure strength, low stacking density and low water absorption by matching with fly ash and waste glass powder, widens the application approach of the oil-containing sludge thermal desorption residues, and finds a new direction for resource utilization of the residual solid phase of the treated oil-containing sludge, the utilization rate of the oil-containing sludge thermal desorption residues in the invention can reach 50 percent, solves the major technical problems of incomplete effective treatment and safe utilization of the oil-containing sludge thermal desorption residues in the sustainable development of oil fields in China at present, and has good social benefit and economic benefit; firstly, oil recovery is not carried out in the patent, but the oily sludge is directly subjected to thermal desorption, so that resource waste is caused, and the energy consumption of thermal desorption is high; the porosity of the ceramsite prepared by utilizing the fly ash and the waste glass powder has the defects of insufficient uniformity and consistency and the like.
In conclusion, the oil recovery of the oily sludge is realized under the condition of low investment, and the reuse of the oily sludge after the oil recovery is a problem which needs to be solved urgently at present.
In addition, the heating furnace of the present invention may be a conventional muffle furnace or other device for heating.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the ceramsite for water treatment prepared by using the oily sludge and the preparation method thereof, wherein the ceramsite is low in production cost, low in equipment investment cost, capable of realizing oil recovery and harmless resource utilization of hazardous wastes.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a ceramsite for water treatment prepared by utilizing oily sludge is prepared from 40 ~ 45% of oily sludge with the water content of 45 ~ 55% after oil recovery, 35 ~ 40% of clay ore, 5 ~ 10% of dispersing agent, 5 ~ 10% of pore-forming agent, 5 ~ 10% of additive and 1 ~ 2% of hematite by mass percentage.
Preferably, the clay mineral is attapulgite clay.
Preferably, the dispersant is polyacrylamide.
Preferably, the pore-forming agent mainly comprises one or more of coal powder, talc, wollastonite, limestone or dolomite.
Preferably, the additive is yttrium oxide, lanthanum oxide, cerium oxide or neodymium oxide, and can also be other similar rare earth oxides.
A method for preparing ceramsite for water treatment by utilizing oily sludge comprises the following steps:
s1, adding a demulsifier into the oily sludge with the oil content of 10- ~ 50%, stirring, heating, standing, separating three phases, recovering oil products on the upper layer, collecting sewage on the middle layer, and discharging to subsequent treatment to form oily sludge with recovered oil products at the bottom;
s2, carrying out filter pressing on the oily sludge obtained after the oil product is recovered in the step S1 to obtain cake-shaped sludge with the water content of 45 ~ 55%;
s3: adding clay ore, a dispersing agent, a pore-forming agent, an additive and hematite into the cake-shaped mud obtained in the step S2 in proportion, stirring to uniformly mix the materials and preparing the mixture into paste;
s4, putting the paste obtained in the step S3 into a grinder to be ground for 30 ~ 60 min, wherein the grain size of the ground material is 80 ~ 100 meshes;
s5, inputting the crushed material in the step S4 into a granulator to prepare spherical particles with the particle size of 0.2 ~ 0.5.5 cm;
s6, putting the spherical particles in the step S5 into a heating furnace, pretreating for 30 ~ 60 min at 300 ~ 450 ℃, then quickly transferring to a rotary kiln, sintering for 30 ~ 60 min at 1100 ~ 1200 and 1200 ℃, and naturally cooling to obtain the ceramsite for water treatment.
S7: and (5) conveying the ceramsite for water treatment obtained in the step (S6) to a classification screening machine through a conveying belt, and screening to obtain the ceramsite with different particle sizes.
The invention has the beneficial effects that:
(1) the method for preparing the ceramsite for water treatment by utilizing the oily sludge, provided by the invention, has the advantages that the used equipment is the prior art, can be purchased in the market, is low in production cost and low in equipment investment cost, can realize oil recovery, realizes harmless resource utilization of hazardous wastes, and has strategic significance for protecting the environment and implementing sustainable development;
(2) the ceramsite prepared by the method for preparing the ceramsite for water treatment by using the oily sludge provided by the invention has the advantages of good adsorption effect, large specific surface area, high mechanical strength, high physical and chemical properties, reusability and the like, contains hematite, has an iron-carbon micro-electrolysis function, can be used in the fields of domestic sewage, industrial wastewater and the like, and has wide application prospect;
(3) the method for preparing the ceramsite for water treatment by using the oily sludge provided by the invention does not need to supplement water additionally in the preparation process, and reduces the water resource consumption and the wastewater discharge in the production process.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below.
Example 1
A ceramsite for water treatment prepared from oily sludge is prepared from the following raw materials in percentage by mass: 40g of oily sludge with water content of 55% after oil recovery, 35g of clay ore, 10g of dispersing agent, 7g of pore-forming agent, 7g of additive and 1g of hematite.
The dispersing agent is: polyacrylamide.
The pore-forming agent is: limestone.
The additive is as follows: and (3) cerium oxide.
The method for preparing the ceramsite for water treatment by using the oily sludge comprises the following steps:
s1, adding a demulsifier into the oily sludge with the oil content of 10- ~ 50%, stirring, heating, standing, separating three phases, recovering oil products on the upper layer, collecting sewage on the middle layer, and discharging to subsequent treatment to form oily sludge with recovered oil products at the bottom;
s2: filter-pressing the oily sludge obtained after the oil product is recovered in the step S1 to cake-shaped sludge with the water content of 55%;
s3: adding clay ore, polyacrylamide, limestone, cerium oxide and hematite into the cake-shaped mud obtained in the step S2 in proportion, stirring to uniformly mix the materials and preparing the materials into paste;
s4: putting the paste in the step S3 into a grinder to be ground for 60 min, wherein the grain diameter of the ground material is 100 meshes;
s5, inputting the crushed material in the step S4 into a granulator to prepare spherical particles with the particle size of 0.2 ~ 0.5.5 cm;
s6: placing the spherical particles in the step S5 in a muffle furnace, and pretreating at 450 ℃ for 30 min; then quickly transferring to a rotary kiln, sintering at 1100 ℃ for 30 min, and naturally cooling to obtain the ceramsite for water treatment;
s7: and (5) conveying the ceramsite for water treatment obtained in the step (S6) to a classification screening machine through a conveying belt, and screening to obtain the ceramsite with the particle size of 0.2 cm, 0.3 cm, 0.4 cm and 0.5 cm respectively.
Example 2
A ceramsite for water treatment prepared from oily sludge is prepared from the following raw materials in percentage by mass: 40g of oily sludge with water content of 45% after oil recovery, 40g of clay ore, 8g of dispersing agent, 5g of pore-forming agent, 5g of additive and 2g of hematite.
The dispersing agent is: polyacrylamide.
The pore-forming agent is: dolomite.
The additive is as follows: lanthanum oxide.
The method for preparing the ceramsite for water treatment by using the oily sludge comprises the following steps:
s1, adding a demulsifier into the oily sludge with the oil content of 10- ~ 50%, stirring, heating, standing, separating three phases, recovering oil products on the upper layer, collecting sewage on the middle layer, and discharging to subsequent treatment to form oily sludge with recovered oil products at the bottom;
s2: filter-pressing the oily sludge obtained after the oil product is recovered in the step S1 to cake-shaped sludge with the water content of 55%;
s3: adding clay ore, polyacrylamide, dolomite, lanthanum oxide and hematite into the cake-shaped mud obtained in the step S2 in proportion, stirring to uniformly mix the materials and preparing the materials into paste;
s4: putting the paste in the step S3 into a grinder to be ground for 30 min, wherein the grain diameter of the ground material is 100 meshes;
s5, inputting the crushed material in the step S4 into a granulator to prepare spherical particles with the particle size of 0.2 ~ 0.5.5 cm;
s6: placing the spherical particles in the step S5 in a muffle furnace, and pretreating at 300 ℃ for 30 min; then quickly transferring to a rotary kiln to sinter for 30 min at 1200 ℃, and naturally cooling to obtain the ceramsite for water treatment;
s7: and (5) conveying the ceramsite for water treatment obtained in the step (S6) to a classification screening machine through a conveying belt, and screening to obtain the ceramsite with the particle size of 0.2 cm, 0.3 cm, 0.4 cm and 0.5 cm respectively.
Example 3
A ceramsite for water treatment prepared from oily sludge is prepared from the following raw materials in percentage by mass: 45g of oily sludge with water content of 50% after oil recovery, 35g of clay ore, 5g of dispersing agent, 8g of pore-forming agent, 5g of additive and 2g of hematite.
The dispersing agent is: polyacrylamide.
The pore-forming agent is: talc.
The additive is as follows: and (3) neodymium oxide.
The method for preparing the ceramsite for water treatment by using the oily sludge comprises the following steps:
s1, adding a demulsifier into the oily sludge with the oil content of 10- ~ 50%, stirring, heating, standing, separating three phases, recovering oil products on the upper layer, collecting sewage on the middle layer, and discharging to subsequent treatment to form oily sludge with recovered oil products at the bottom;
s2: filter-pressing the oily sludge obtained after the oil product is recovered in the step S1 to cake-shaped sludge with the water content of 50%;
s3: adding clay ore, polyacrylamide, talc, neodymium oxide and hematite into the cake-shaped mud obtained in the step S2 in proportion, stirring to uniformly mix the materials and preparing the materials into paste;
s4: putting the paste in the step S3 into a grinder to be ground for 60 min, wherein the grain size of the ground material is 80 meshes;
s5, inputting the crushed material in the step S4 into a granulator to prepare spherical particles with the particle size of 0.2 ~ 0.5.5 cm;
s6: placing the spherical particles in the step S5 in a muffle furnace, and pretreating at 450 ℃ for 30 min; and then quickly transferring the ceramic particles to a rotary kiln to sinter the ceramic particles for 60 min at 1150 ℃, and naturally cooling the ceramic particles to obtain the ceramic particles for water treatment.
S7: and (5) conveying the ceramsite for water treatment obtained in the step (S6) to a classification screening machine through a conveying belt, and screening to obtain the ceramsite with the particle size of 0.2 cm, 0.3 cm, 0.4 cm and 0.5 cm respectively.
The ceramsite for water treatment prepared in the above examples 1-3 was tested, and the porosity, uniformity, bulk density and other performance parameters of the ceramsite are shown in table 1:
TABLE 1 ceramsite performance parameters for water treatment
| Porosity (%) | Apparent density (kg/m)3) | Bulk Density (kg/m)3) | |
| Example 1 | 37 | 1680 | 810 |
| Example 2 | 41 | 1730 | 970 |
| Example 3 | 43 | 1770 | 1060 |
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (7)
1. The ceramsite for water treatment is prepared from 40 ~ percent of oily sludge with the water content of 45 ~ percent after oil recovery, 35 ~ percent of clay ore, 5 ~ percent of dispersant, 5 ~ percent of pore-forming agent, 5 ~ percent of additive and 1 ~ percent of hematite by mass percent.
2. The ceramsite for water treatment, prepared from oil-containing sludge, according to claim 1, is characterized in that: the clay ore is attapulgite clay.
3. The ceramsite for water treatment, prepared from oil-containing sludge, according to claim 1, is characterized in that: the dispersant is polyacrylamide.
4. The ceramsite for water treatment, prepared from oil-containing sludge, according to claim 1, is characterized in that: the pore-forming agent comprises one or more of pulverized coal, talc, wollastonite, limestone or dolomite.
5. The ceramsite for water treatment, prepared from oil-containing sludge, according to claim 1, is characterized in that: the additive is yttrium oxide, lanthanum oxide, cerium oxide or neodymium oxide.
6. A method for preparing the ceramsite for water treatment prepared from the oily sludge according to any one of claims 1-5, wherein the ceramsite is prepared from the following raw materials in parts by weight: the method comprises the following steps:
s1, adding a demulsifier into the oily sludge with the oil content of 10- ~ 50%, stirring, heating, standing, separating three phases, recovering oil products on the upper layer, collecting sewage on the middle layer, and discharging to subsequent treatment to form oily sludge with recovered oil products at the bottom;
s2, carrying out filter pressing on the oily sludge obtained after the oil product is recovered in the step S1 to obtain cake-shaped sludge with the water content of 45 ~ 55%;
s3: adding clay ore, a dispersing agent, a pore-forming agent, an additive and hematite into the cake-shaped mud obtained in the step S2 in proportion, stirring to uniformly mix the materials and preparing the mixture into paste;
s4, putting the paste obtained in the step S3 into a grinder to be ground for 30 ~ 60 min, wherein the grain size of the ground material is 80 ~ 100 meshes;
s5, inputting the crushed material in the step S4 into a granulator to prepare spherical particles with the particle size of 0.2 ~ 0.5.5 cm;
s6, putting the spherical particles in the step S5 into a heating furnace, pretreating for 30 ~ 60 min at 300 ~ 450 ℃, then quickly transferring to a rotary kiln, sintering for 30 ~ 60 min at 1100 ~ 1200 and 1200 ℃, and naturally cooling to obtain the ceramsite for water treatment.
7, S7: and (5) conveying the ceramsite for water treatment obtained in the step (S6) to a classification screening machine through a conveying belt, and screening to obtain the ceramsite with different particle sizes.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792916A (en) * | 2020-07-15 | 2020-10-20 | 成都德菲环境工程有限公司 | Method for preparing ceramsite by using oily sludge |
| CN112495337A (en) * | 2020-11-11 | 2021-03-16 | 常熟理工学院 | Method for preparing ceramsite filter material by using oil-containing sludge |
| CN112608130A (en) * | 2020-12-18 | 2021-04-06 | 天津大学 | Novel light high-porosity ceramic filter material and preparation method thereof |
| CN112919879A (en) * | 2021-04-27 | 2021-06-08 | 陕西中禾天成环保科技有限公司 | Method for preparing high-strength ceramsite from oil sludge |
| CN113105137A (en) * | 2021-03-17 | 2021-07-13 | 重庆大学 | Method for preparing artificial aggregate green pellets by utilizing oil sludge pyrolysis residues |
| CN113121203A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | Method for preparing ceramsite from oily sludge |
| CN115215636A (en) * | 2022-08-19 | 2022-10-21 | 安徽美琛生态科技有限公司 | Method for preparing ceramsite by using oily sludge |
| CN115304353A (en) * | 2022-08-10 | 2022-11-08 | 甘肃新鑫能源工程有限公司 | Method and device for preparing ceramsite from tailings based on pyrolysis of oily sludge |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367156A (en) * | 2002-03-07 | 2002-09-04 | 华南理工大学 | Method for baking clay ceramsite by using biological sludge of sewage treatment plant |
| CN101475362A (en) * | 2008-12-15 | 2009-07-08 | 山东省农业科学院土壤肥料研究所 | Biochemical ceramic as well as preparation method and application thereof |
| CN101618971A (en) * | 2009-07-31 | 2010-01-06 | 西安墙体材料研究设计院 | Municipal sludge expanded ceramsite and preparation method thereof |
| CN102249584A (en) * | 2011-05-17 | 2011-11-23 | 惠州绿润环保科技有限公司 | Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge |
| CN102260090A (en) * | 2011-04-12 | 2011-11-30 | 河北省地矿局第三地质大队 | Method for preparing ceramsite by using gold extraction tailings |
| CN103241970A (en) * | 2013-05-08 | 2013-08-14 | 清远绿由环保科技有限公司 | Sintering expansion type light ceramsite produced by using oily sludge and manufacture method of sintering expansion type light ceramsite |
| CN105498625A (en) * | 2015-12-17 | 2016-04-20 | 陕西延长石油（集团）有限责任公司 | Method for oil sludge tempering and solidification pelletizing |
| CN105688917A (en) * | 2016-02-24 | 2016-06-22 | 湖南永清环保研究院有限责任公司 | Porous ceramsite Fenton catalyst and preparation method thereof |
| CN106277692A (en) * | 2015-06-03 | 2017-01-04 | 宁波平海建材有限公司 | The new method of urban industry recycling sludge |
-
2019
- 2019-08-29 CN CN201910808089.7A patent/CN110590392A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367156A (en) * | 2002-03-07 | 2002-09-04 | 华南理工大学 | Method for baking clay ceramsite by using biological sludge of sewage treatment plant |
| CN101475362A (en) * | 2008-12-15 | 2009-07-08 | 山东省农业科学院土壤肥料研究所 | Biochemical ceramic as well as preparation method and application thereof |
| CN101618971A (en) * | 2009-07-31 | 2010-01-06 | 西安墙体材料研究设计院 | Municipal sludge expanded ceramsite and preparation method thereof |
| CN102260090A (en) * | 2011-04-12 | 2011-11-30 | 河北省地矿局第三地质大队 | Method for preparing ceramsite by using gold extraction tailings |
| CN102249584A (en) * | 2011-05-17 | 2011-11-23 | 惠州绿润环保科技有限公司 | Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge |
| CN103241970A (en) * | 2013-05-08 | 2013-08-14 | 清远绿由环保科技有限公司 | Sintering expansion type light ceramsite produced by using oily sludge and manufacture method of sintering expansion type light ceramsite |
| CN106277692A (en) * | 2015-06-03 | 2017-01-04 | 宁波平海建材有限公司 | The new method of urban industry recycling sludge |
| CN105498625A (en) * | 2015-12-17 | 2016-04-20 | 陕西延长石油（集团）有限责任公司 | Method for oil sludge tempering and solidification pelletizing |
| CN105688917A (en) * | 2016-02-24 | 2016-06-22 | 湖南永清环保研究院有限责任公司 | Porous ceramsite Fenton catalyst and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郑延力等主编: "《非金属矿产开发应用指南》", 31 December 1989, 地质矿产部直属单位管理局 * |
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| CN115304353A (en) * | 2022-08-10 | 2022-11-08 | 甘肃新鑫能源工程有限公司 | Method and device for preparing ceramsite from tailings based on pyrolysis of oily sludge |
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