CN106673164A - Sewage treatment agent and preparation method thereof - Google Patents
Sewage treatment agent and preparation method thereof Download PDFInfo
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- CN106673164A CN106673164A CN201710069358.3A CN201710069358A CN106673164A CN 106673164 A CN106673164 A CN 106673164A CN 201710069358 A CN201710069358 A CN 201710069358A CN 106673164 A CN106673164 A CN 106673164A
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- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
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- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a sewage treatment agent. The sewage treatment agent is prepared from the following raw materials in parts by weight: 15-31 parts of water supply plant sludge, 0.5-3 parts of hydrochloric acid, 2-6 parts of waste aluminum scrap, 4-8 parts of calcium oxide powder, 3-10 parts of metronidazole, 2.5-6 parts of alum, 5-12 parts of coal ash, 10-22 parts of lithopone, 2-6 parts of sodium silicate, 2-8 parts of isothiazolinone and 1.5-7 parts of graphite. The invention further discloses a preparation method of the sewage treatment agent. The sewage treatment agent is wide in raw material source, simple in preparation process and low in investment cost and applicable to large-scale industrial production; and a compound flocculant is generated by virtue of hydrolysis and condensation polymerization actions of metronidazole, sludge burning residue, waste aluminum scrap, lithopone, isothiazolinone and graphite, is capable of flocculating pollutants and wide in pollutant treatment range, has stable and good use effect and is a comprehensive sewage treatment agent.
Description
Technical field
The present invention relates to sewage treatment area, specifically a kind of sewage treatment drug.
Background technology
With the expansion and industrialized development of city size, the sewage quantity produced in life and production is also more and more,
For resource reutilization, people discharge again people after sewage can be processed, and sewage-treating agent is in sewage treatment area
Conventional chemical assistant, is separated thick, the thin impurity in water by sewage-treating agent, so as to realize the effect of purification of water quality.So
And, in the modern life, the species of sewage is more, including the industry-by-industry such as life, medical treatment, industry, agricultural, chemical industry, machinery
Waste water.Due to the demand of every profession and trade, the composition of sewage-treating agent is different, but is all required alone, reaches respective purposes.
Although such inorganic agent high treating effect, thoroughly, feature is relatively simple for Impurity removal, and not realizing can be except industry
The function of class sewage and energy purifying domestic sewage.
The content of the invention
It is an object of the invention to provide a kind of sewage treatment drug, to solve the problems, such as above-mentioned background technology in propose.
For achieving the above object, the present invention provides following technical scheme:
A kind of sewage treatment drug, is made up of following raw material according to weight portion:Alum sludge 15-31 parts, hydrochloric acid
It is 0.5-3 parts, aluminium scrap bits 2-6 parts, lime powder 4-8 parts, metronidazole 3-10 parts, Alumen 2.5-6 parts, flyash 5-12 parts, vertical
Moral powder 10-22 parts, sodium silicate 2-6 parts, isothiazolone 2-8 parts and graphite 1.5-7 parts.
As further scheme of the invention:The granularity of lime powder and sodium silicate is 100-240 mesh, graphite it is straight
Footpath is 150-300um.
As further scheme of the invention:The molar concentration of hydrochloric acid is 0.8-1.4mol/L.
The preparation method of the sewage treatment drug, comprises the following steps that:
Step one, by alum sludge calcination is carried out, and obtains burnt waste slag of sludge, by aluminium scrap bits add hydrochloric acid in and
Be slowly added to burnt waste slag of sludge under magnetic stirring, being added completely into after finishing carries out closed stirring 1.5-3 hours, then with centrifugation
Seperator isolates the solution of chloride containing aluminum;
Step 2, during flyash and lime powder to be slowly stirred the solution for adding chloride containing aluminum, obtains the first mixing
Thing;
Step 3, by metronidazole, Alumen, graphite and lithopone ball milling pearl, ball milling 1-2.5 are added in ball grinder and add
Hour, obtain the second mixture;
Step 4, be in its 5-12 times deionized water by isothiazolone addition quality, then it is added thereto to sodium silicate
With the first mixture and homogenizing stirring is carried out, the second mixture is added after stirring completely and is stirred, obtained
Final mixture, by final mixture process is dried under 100-130 degree Celsius, is removed moisture therein and is obtained into
Product.
As further scheme of the invention:The mixing speed of step 2 is 150-360rpm, and whipping temp is taken the photograph for 40-60
Family name's degree, the weight ratio of the gross weight of metronidazole, Alumen, graphite and lithopone and ball milling pearl is 1 in step 3:6-9, ball milling temperature
Spend for 30-42 degree Celsius.
Compared with prior art, the invention has the beneficial effects as follows:Raw material sources of the present invention extensively, preparation process is simple and
Equipment investment cost is low, it is adaptable to large-scale industrial production;Metronidazole, burnt waste slag of sludge, aluminium scrap are considered to be worth doing, stood in the present invention
Moral powder, isothiazolone and graphite generate composite flocculation agent by hydrolysis and polycondensation, and pollutant can be flocculated, dirty
Dye thing process range is wide, and using effect is stable and using effect is good, is a kind of comprehensive sewage treatment drug.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Embodiment 1
A kind of sewage treatment drug, is made up of following raw material according to weight portion:15 parts of alum sludge, 0.5 part of hydrochloric acid,
Aluminium scrap consider to be worth doing 2 parts, it is 4 parts of lime powder, 3 parts of metronidazole, 2.5 parts of Alumen, 5 parts of flyash, 10 parts of lithopone, 2 parts of sodium silicate, different
1.5 parts of 2 parts of thiazolinone and graphite.The granularity of lime powder and sodium silicate is 120 mesh, a diameter of 170um of graphite.
The preparation method of the sewage treatment drug, comprises the following steps that:
Step one, by alum sludge calcination is carried out, and obtains burnt waste slag of sludge, by aluminium scrap bits add hydrochloric acid in and
Burnt waste slag of sludge is slowly added under magnetic stirring, and being added completely into after finishing carries out closed stirring 1.5 hours, then is divided with centrifugation
Disembark and isolate the solution of chloride containing aluminum;
Step 2, during flyash and lime powder to be slowly stirred the solution for adding chloride containing aluminum, obtains the first mixing
Thing;
Step 3, metronidazole, Alumen, graphite and lithopone are added in ball grinder and ball milling pearl is added, and ball milling 1.5 is little
When, obtain the second mixture;
Step 4, be in its 6 times deionized water by isothiazolone addition quality, then it is added thereto to sodium silicate and the
One mixture and homogenizing stirring is carried out, the second mixture is added after stirring completely and is stirred, obtain final
Mixture, by final mixture process is dried under 105 degrees Celsius, removes moisture therein and finished product is obtained.
Embodiment 2
A kind of sewage treatment drug, is made up of following raw material according to weight portion:22 parts of alum sludge, 1.5 parts of hydrochloric acid,
Aluminium scrap consider to be worth doing 3 parts, 5.5 parts of lime powder, 5 parts of metronidazole, 4 parts of Alumen, 7 parts of flyash, 13 parts of lithopone, 3.5 parts of sodium silicate,
3 parts of 4 parts of isothiazolone and graphite.The molar concentration of hydrochloric acid is 0.9mol/L.
The preparation method of the sewage treatment drug, comprises the following steps that:
Step one, by alum sludge calcination is carried out, and obtains burnt waste slag of sludge, by aluminium scrap bits add hydrochloric acid in and
Burnt waste slag of sludge is slowly added under magnetic stirring, and being added completely into after finishing carries out closed stirring 2 hours, then uses centrifugation
Machine isolates the solution of chloride containing aluminum;
Step 2, during flyash and lime powder to be slowly stirred the solution for adding chloride containing aluminum, mixing speed is
180rpm, whipping temp is 43 degrees Celsius, obtains the first mixture;
Step 3, metronidazole, Alumen, graphite and lithopone are added in ball grinder and ball milling pearl is added, metronidazole, bright
The gross weight of vitriol, graphite and lithopone and the weight ratio of ball milling pearl are 1:7, ball milling temperature is 34 degrees Celsius, ball milling 2 hours,
Obtain the second mixture;
Step 4, be in its 8 times deionized water by isothiazolone addition quality, then it is added thereto to sodium silicate and the
One mixture and homogenizing stirring is carried out, the second mixture is added after stirring completely and is stirred, obtain final
Mixture, by final mixture process is dried under 113 degrees Celsius, removes moisture therein and finished product is obtained.
Embodiment 3
A kind of sewage treatment drug, is made up of following raw material according to weight portion:It is 26 parts of alum sludge, 2 parts of hydrochloric acid, useless
5 parts of aluminium skimmings, 7 parts of lime powder, 8 parts of metronidazole, 5 parts of Alumen, 9 parts of flyash, 19 parts of lithopone, 4.5 parts of sodium silicate, different thiophene
6 parts of 6 parts of oxazoline ketone and graphite.The granularity of lime powder and sodium silicate is 160 mesh, a diameter of 220um of graphite.Hydrochloric acid
Molar concentration is 1.2mol/L.
The preparation method of the sewage treatment drug, comprises the following steps that:
Step one, by alum sludge calcination is carried out, and obtains burnt waste slag of sludge, by aluminium scrap bits add hydrochloric acid in and
Burnt waste slag of sludge is slowly added under magnetic stirring, and being added completely into after finishing carries out closed stirring 2.5 hours, then is divided with centrifugation
Disembark and isolate the solution of chloride containing aluminum;
Step 2, during flyash and lime powder to be slowly stirred the solution for adding chloride containing aluminum, obtains the first mixing
Thing;
Step 3, metronidazole, Alumen, graphite and lithopone are added in ball grinder and ball milling pearl is added, and ball milling 1 is little
When, obtain the second mixture;
Step 4, be in its 9 times deionized water by isothiazolone addition quality, then it is added thereto to sodium silicate and the
One mixture and homogenizing stirring is carried out, the second mixture is added after stirring completely and is stirred, obtain final
Mixture, final mixture is dried at one hundred and twenty degrees centigrade process, removes moisture therein and finished product is obtained.
Embodiment 4
A kind of sewage treatment drug, is made up of following raw material according to weight portion:It is 29 parts of alum sludge, 3 parts of hydrochloric acid, useless
It is 5 parts of aluminium skimmings, 7.5 parts of lime powder, 9 parts of metronidazole, 5 parts of Alumen, 11 parts of flyash, 21 parts of lithopone, 5 parts of sodium silicate, different
6 parts of 8 parts of thiazolinone and graphite.The granularity of lime powder and sodium silicate is 210 mesh, a diameter of 280um of graphite.Hydrochloric acid
Molar concentration be 1.4mol/L.
The preparation method of the sewage treatment drug, comprises the following steps that:
Step one, by alum sludge calcination is carried out, and obtains burnt waste slag of sludge, by aluminium scrap bits add hydrochloric acid in and
Burnt waste slag of sludge is slowly added under magnetic stirring, and being added completely into after finishing carries out closed stirring 3 hours, then uses centrifugation
Machine isolates the solution of chloride containing aluminum;
Step 2, during flyash and lime powder to be slowly stirred the solution for adding chloride containing aluminum, mixing speed is
260rpm, whipping temp is 52 degrees Celsius, obtains the first mixture;
Step 3, metronidazole, Alumen, graphite and lithopone are added in ball grinder and ball milling pearl is added, metronidazole, bright
The gross weight of vitriol, graphite and lithopone and the weight ratio of ball milling pearl are 1:8, ball milling temperature is 38 degrees Celsius, ball milling 2 hours,
Obtain the second mixture;
Step 4, be in its 10 times deionized water by isothiazolone addition quality, then be added thereto to sodium silicate and
First mixture and homogenizing stirring is carried out, the second mixture is added after stirring completely and is stirred, obtained most
Whole mixture, by final mixture process is dried under 124 degrees Celsius, removes moisture therein and finished product is obtained.
Comparative example
Except metronidazole is not contained, remaining component of comparative example 1 and preparation method are same as Example 3.
The product of the product of embodiment 1-4 and comparative example 1 is put into into the printing and dyeing dirt that certain printing and dyeing mill discharges with the dosage of 20g/L
In water, the organic concentration after the product input of embodiment 1-4 in dyeing and printing sewage is greatly lowered, the product input of comparative example 1
Organic concentration afterwards in dyeing and printing sewage is almost unchanged.
The product of the product of embodiment 1-4 and comparative example 1 is put in sanitary sewage with the dosage of 40g/L, embodiment 1-4
Product input after organic concentration in sanitary sewage be greatly lowered, the impurity such as solid suspension, oils and fatss, jelly is inhaled
Attached, the organic concentration after the product input of comparative example 1 in sanitary sewage reduces a small amount of, solid suspension, oils and fatss, jelly etc.
Impurity is constant.
The product of the product of embodiment 1-4 and comparative example 1 is put into into the sewage that certain chemical plant is discharged with the dosage of 20g/L
In, the heavy metal concentration such as trivalent chromium, Cr VI, mercury ion, copper ion after the product input of embodiment 1-4 in sewage is significantly
Reduce, the heavy metal concentration after the product input of comparative example 1 in sewage is almost unchanged.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that for clarity those skilled in the art should
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (5)
1. a kind of sewage treatment drug, it is characterised in that be made up of according to weight portion following raw material:Alum sludge 15-31
Part, hydrochloric acid 0.5-3 parts, aluminium scrap bits 2-6 parts, lime powder 4-8 parts, metronidazole 3-10 parts, Alumen 2.5-6 parts, flyash 5-
12 parts, lithopone 10-22 parts, sodium silicate 2-6 parts, isothiazolone 2-8 parts and graphite 1.5-7 parts.
2. sewage treatment drug according to claim 1, it is characterised in that the granularity of the lime powder and sodium silicate
It is 100-240 mesh, a diameter of 150-300um of graphite.
3. sewage treatment drug according to claim 1 and 2, it is characterised in that the molar concentration of the hydrochloric acid is 0.8-
1.4mol/L。
4. a kind of preparation method of the sewage treatment drug as described in claim 1-3 is arbitrary, it is characterised in that concrete steps are such as
Under:
Step one, by alum sludge calcination is carried out, and obtains burnt waste slag of sludge, and aluminium scrap bits are added in hydrochloric acid and in magnetic
Burnt waste slag of sludge is slowly added under power stirring, being added completely into after finishing carries out closed stirring 1.5-3 hours, then uses centrifugation
Machine isolates the solution of chloride containing aluminum;
Step 2, during flyash and lime powder to be slowly stirred the solution for adding chloride containing aluminum, obtains the first mixture;
Step 3, metronidazole, Alumen, graphite and lithopone are added in ball grinder and ball milling pearl is added, and ball milling 1-2.5 is little
When, obtain the second mixture;
Step 4, be in its 5-12 times deionized water by isothiazolone addition quality, then it is added thereto to sodium silicate and the
One mixture and homogenizing stirring is carried out, the second mixture is added after stirring completely and is stirred, obtain final
Mixture, by final mixture process is dried under 100-130 degree Celsius, removes moisture therein and finished product is obtained.
5. the preparation method of sewage treatment drug according to claim 4, it is characterised in that the stirring speed of the step 2
Spend for 150-360rpm, whipping temp is 40-60 degree Celsius, the gross weight of metronidazole, Alumen, graphite and lithopone in step 3
It is 1 with the weight ratio of ball milling pearl:6-9, ball milling temperature is 30-42 degree Celsius.
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CN201710069358.3A CN106673164A (en) | 2017-02-08 | 2017-02-08 | Sewage treatment agent and preparation method thereof |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107140700A (en) * | 2017-06-03 | 2017-09-08 | 郭发亮 | Purifying agent for polluted water and preparation method thereof |
CN107416939A (en) * | 2017-07-13 | 2017-12-01 | 伍超群 | A kind of inorganic agent for removing heavy metal ions in sewage and preparation method thereof |
CN107601639A (en) * | 2017-10-31 | 2018-01-19 | 广西贝仕特环保科技有限公司 | A kind of high-efficiency industrial wastewater cleanser and preparation method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1035623A (en) * | 1989-03-02 | 1989-09-20 | 周天保 | Produce the method for composite flocculation agent with the cinder powder |
CN103478170A (en) * | 2013-09-18 | 2014-01-01 | 中国海洋石油总公司 | Preparation method for bromine biocide suitable for high ammonia nitrogen and high COD water quality |
CN103641182A (en) * | 2013-11-28 | 2014-03-19 | 大连创达技术交易市场有限公司 | Sewage treatment drug |
CN103641226A (en) * | 2013-12-26 | 2014-03-19 | 张�成 | Heavy metal sewage treating agent and preparation method thereof |
CN105642221A (en) * | 2016-01-11 | 2016-06-08 | 河南城建学院 | Phosphorus removal water purifying agent and preparation method thereof |
CN105688843A (en) * | 2016-01-26 | 2016-06-22 | 蒋金香 | Mesoporous carbon material of heavy metal ion adsorbent for sewage and preparation method of mesoporous carbon material |
CN105884047A (en) * | 2016-07-07 | 2016-08-24 | 王瑞明 | Treatment agent for printing and dyeing wastewater |
-
2017
- 2017-02-08 CN CN201710069358.3A patent/CN106673164A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1035623A (en) * | 1989-03-02 | 1989-09-20 | 周天保 | Produce the method for composite flocculation agent with the cinder powder |
CN103478170A (en) * | 2013-09-18 | 2014-01-01 | 中国海洋石油总公司 | Preparation method for bromine biocide suitable for high ammonia nitrogen and high COD water quality |
CN103641182A (en) * | 2013-11-28 | 2014-03-19 | 大连创达技术交易市场有限公司 | Sewage treatment drug |
CN103641226A (en) * | 2013-12-26 | 2014-03-19 | 张�成 | Heavy metal sewage treating agent and preparation method thereof |
CN105642221A (en) * | 2016-01-11 | 2016-06-08 | 河南城建学院 | Phosphorus removal water purifying agent and preparation method thereof |
CN105688843A (en) * | 2016-01-26 | 2016-06-22 | 蒋金香 | Mesoporous carbon material of heavy metal ion adsorbent for sewage and preparation method of mesoporous carbon material |
CN105884047A (en) * | 2016-07-07 | 2016-08-24 | 王瑞明 | Treatment agent for printing and dyeing wastewater |
Non-Patent Citations (3)
Title |
---|
张分电: "《高含硫气田污水处理工》", 31 January 2014, 中国石化出版社 * |
李汴生 阮征: "《非热杀菌技术与应用》", 30 September 2004, 化学工业出版社 * |
胡小龙: "《粉煤灰利用分离技术》", 31 December 2013, 冶金工业出版社 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107140700A (en) * | 2017-06-03 | 2017-09-08 | 郭发亮 | Purifying agent for polluted water and preparation method thereof |
CN107416939A (en) * | 2017-07-13 | 2017-12-01 | 伍超群 | A kind of inorganic agent for removing heavy metal ions in sewage and preparation method thereof |
CN107601639A (en) * | 2017-10-31 | 2018-01-19 | 广西贝仕特环保科技有限公司 | A kind of high-efficiency industrial wastewater cleanser and preparation method thereof |
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Application publication date: 20170517 |