CN102000579B - Wastewater treatment catalyst and preparation method thereof - Google Patents
Wastewater treatment catalyst and preparation method thereof Download PDFInfo
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- CN102000579B CN102000579B CN2010105262464A CN201010526246A CN102000579B CN 102000579 B CN102000579 B CN 102000579B CN 2010105262464 A CN2010105262464 A CN 2010105262464A CN 201010526246 A CN201010526246 A CN 201010526246A CN 102000579 B CN102000579 B CN 102000579B
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- iron oxide
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Abstract
The invention relates to a wastewater treatment catalyst and a preparation method thereof. The wastewater treatment catalyst comprises the following raw materials in percentage by mass: 15 percent of elemental iron, 4.5 percent of bivalent iron oxide, 17.5 percent of trivalent iron oxide, 30 percent of magnesium oxide, 2.7 percent of nickel, 1.4 percent of zinc and 28.9 percent of yellow mud. The invention has the advantages that the sintering stability of added metal materials and metal oxide materials is ensured by utilizing the inherent viscosity of the yellow mud, and the yellow mud does not contain impurities of metals and metal oxides per se, therefore, the purity of a sintering result is ensured; various metals and metal oxides have good uniformity and dispersibility in a process of repeated sintering; and the yellow mud volatilizes per se in the sintering process to form gaps, and therefore, catalyst particles have good hydrophilicity and dispersion rate.
Description
Technical field
The present invention relates to chemical field, relate in particular to a kind of sewage disposal Catalysts and its preparation method.
Background technology
Water is the primary condition that the mankind depend on for existence, but along with economic development, manufacturing prosperity; Various sewage produce in a large number; Existent environment of people is caused huge threat, and for example the waste water from pesticide factory water yield is bigger, and residual agricultural chemicals and chemical agent is more in the water; Cause water body to have higher toxicity, belong to more unmanageable a kind of waste water.There is structural instability in catalyst at present commonly used, can loses and deficiency such as service life is short with current.
Summary of the invention
The purpose of this invention is to provide a kind of sewage disposal Catalysts and its preparation method, overcome existing commonly used sewage disposal catalyst and have structural instability, can lose and deficiency such as service life is short with current.
The objective of the invention is to realize through following technical scheme:
A kind of sewage disposal catalyst, it comprises by the raw material of following mass percent processes: fe 15, divalence iron oxide 4.5, trivalent iron oxide 17.5, magnesia 30, nickel 2.7, zinc 1.4, yellow mud 28.9.
Above-mentioned sewage disposal Preparation of catalysts method may further comprise the steps:
Mix, at first metal and the metal oxide with said mass percent is blended in the yellow mud;
Sintering at 1500 degrees centigrade of following sintering, cuts said mixture matter and moulds granulating behind the sintering, the diameter of particle is the 1.5cm spheroidal particle;
High temperature sintering carries out the particle of moulding moulding sintering under 1500-1800 degree centigrade the high temperature once more, fires 3～5 times, and each firing time continues 2～5 hours.
Beneficial effect of the present invention is:
1, to utilize the intrinsic viscosity of yellow mud itself to guarantee to add the sintering of metal and metal oxide material stable in the present invention, and yellow mud itself not containing metal and metal oxide-type impurity, guaranteed sintering result's purity;
2, multiple metal and metal oxide have the good uniformity and dispersiveness in sintering process repeatedly;
3, yellow mud becomes the space from volatility in sintering process, helps catalyst particle and has good hydrophilicity and dispersion rate.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described further.
The described a kind of sewage disposal catalyst of present embodiment, it comprises the raw material of following quality (kg): fe 15, divalence iron oxide 4.5, trivalent iron oxide 17.5, magnesia 30, nickel 2.7, zinc 1.4, yellow mud 28.9.Said yellow mud is taken from ground after the band geology sedimentation of the south of the River one below 3 meters.
Above-mentioned sewage disposal Preparation of catalysts method, it may further comprise the steps:
Mix, at first above-mentioned metal and metal oxide are blended in the yellow mud of 28.9kg;
Sintering at 1500 degrees centigrade of following sintering, cuts said mixture matter and moulds granulating behind the sintering, the diameter of particle is the 1.5cm spheroidal particle;
High temperature sintering carries out the particle of moulding moulding sintering under 1700 degrees centigrade the high temperature once more, fires 4 times, and each firing time continues 3 hours; Concrete condition will be seen the caking ability and the moisture content of the yellow mud raw material that is adopted, because the nature difference of each yellow mud that adopts itself, water content is high more, and sintering number is many more, and each sintering temperature is low, and the duration is short; Water content is few more, and sintering number is few more, and each sintering temperature is more higher.
Sewage disposal catalyst of the present invention uses in the catalytic oxidation bed; Under hydraulic retention HRT=2 hour prerequisite; Catalyst forms the OH free radical with after water surface fully contacts under the oxidant effect, the OH free radical contact effect of realization open loop and chain rupture under the oxidant effect afterwards with water body; Reduce influent density, improved the water body biodegradability.For follow-up biochemical processing process creates conditions.
1), solid-state structure sewage disposal catalyst major advantage of the present invention is:, do not need to add for a long time; 2), Stability Analysis of Structures, can not lose with current, generally speaking, to industrial wastewater or the food processing wastewater of COD concentration at 10000～100000mg/L, can reach 7～10 years its service life;
Sewage disposal Application of Catalyst instance of the present invention: 2009; In being directed against the sewage disposal project of Shandong insecticide factory; Because this waste water from pesticide factory water yield is bigger; And agricultural chemicals and chemical agent residual in the water are more, cause water body to have higher toxicity, belong to more unmanageable a kind of waste water.Adopt after this catalyst, adding under the little amount of catalyst effect, water body toxicity reduces greatly, and COD concentration reduces greatly, and the ammonia nitrogen in the water body, phosphorus content also descend to some extent, and water body eutrophication degree is eased.Can directly carry out good biochemical microbial reaction through the reacted water of catalyst, finally reach country-level processing standard and directly discharging.
Claims (2)
1. a sewage disposal catalyst is characterized in that, its raw material by following mass percent is processed: fe 15, divalence iron oxide 4.5, trivalent iron oxide 17.5, magnesia 30, nickel 2.7, zinc 1.4, yellow mud 28.9.
2. the described sewage disposal Preparation of catalysts of claim 1 method is characterized in that it may further comprise the steps:
Mix, at first metal and the metal oxide with said mass percent is blended in the yellow mud;
Sintering at 1500 degrees centigrade of following sintering, cuts said mixture matter and moulds granulating behind the sintering, particle is that diameter is the spheroidal particle of 1.5cm;
High temperature sintering carries out the particle of moulding moulding sintering under 1500-1800 degree centigrade the high temperature once more, fires 3～5 times, and each firing time continues 2～5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105262464A CN102000579B (en) | 2010-11-01 | 2010-11-01 | Wastewater treatment catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105262464A CN102000579B (en) | 2010-11-01 | 2010-11-01 | Wastewater treatment catalyst and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102000579A CN102000579A (en) | 2011-04-06 |
| CN102000579B true CN102000579B (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105262464A Expired - Fee Related CN102000579B (en) | 2010-11-01 | 2010-11-01 | Wastewater treatment catalyst and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477776A (en) * | 2016-11-25 | 2017-03-08 | 南宁市黑晶信息技术有限公司 | A kind of sewage water treatment method |
| CN106745959A (en) * | 2016-11-25 | 2017-05-31 | 南宁市黑晶信息技术有限公司 | A kind of petrochemical wastewater processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1358567A (en) * | 2001-11-16 | 2002-07-17 | 中国科学院大连化学物理研究所 | Copper base catalyst for catalyzing wet oxidation method treating industrial waste water |
| CN101397154A (en) * | 2007-09-27 | 2009-04-01 | 中国科学院过程工程研究所 | Water treatment agent prepared by blast furnace slag and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132657A (en) * | 1975-05-12 | 1976-11-17 | Mitsubishi Rayon Co Ltd | Waste water treatment method |
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2010
- 2010-11-01 CN CN2010105262464A patent/CN102000579B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1358567A (en) * | 2001-11-16 | 2002-07-17 | 中国科学院大连化学物理研究所 | Copper base catalyst for catalyzing wet oxidation method treating industrial waste water |
| CN101397154A (en) * | 2007-09-27 | 2009-04-01 | 中国科学院过程工程研究所 | Water treatment agent prepared by blast furnace slag and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开昭51-132657B 1976.11.17 |
| 王路明.氢氧化镁对酸性废水处理的研究.《盐业与化工》.2008,第37卷(第6期),21-24. * |
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| CN102000579A (en) | 2011-04-06 |
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Owner name: JIANGSU WOTU ENVIRONMENT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YIN HENG Effective date: 20140620 |
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Effective date of registration: 20140620 Address after: 214000, No. 198, Dongxing Road, anzhen Town, Xishan District, Jiangsu, Wuxi Patentee after: Jiangsu fertile environment Technology Co., Ltd. Address before: 704, room 50, Cheng Yin building, 210018 Cheng Yin Street, Jiangsu, Nanjing Patentee before: Yin Heng |
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