CN101519237A - Compound high-efficiency flocculating agent - Google Patents
Compound high-efficiency flocculating agent Download PDFInfo
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- CN101519237A CN101519237A CN200810050405A CN200810050405A CN101519237A CN 101519237 A CN101519237 A CN 101519237A CN 200810050405 A CN200810050405 A CN 200810050405A CN 200810050405 A CN200810050405 A CN 200810050405A CN 101519237 A CN101519237 A CN 101519237A
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Abstract
The invention relates to a compound high-efficiency flocculating agent used for seriously polluted water. The flocculating agent takes water soluble polymer polyacrylamide as main materials, takes water soluble polymer acrylic acid, hydroxyethyl cellulose and ethyl acrylate as active coagulant aid, takes ferrous sulphate and aluminium sulphate of inorganic salts as catalyzing flocculating agent, uses the configured universal chemical industrial production equipment and adopts the technique processing technologies of metering blending, synthetic reaction, stabile concentration, vacuum hydrolysis and spray drying and the like; and a compound high-efficiency flocculating agent with high polymerization degree, high relative molecular quality, low use amount and simple use method is developed. Due to the unique molecular structure and chemical function, the compound high-efficiency flocculating agent has stronger absorption and flocculating effect to fine particles in seriously polluted water, can absorb the fine particles containing various inorganic substances and difficult degradable organic substances in the seriously polluted water and flocculate the fine particles into floccules, and can realize the purpose of improving and purifying the water quality after the flocculating groups are removed. The flocculating agent is especially applicable to the industrial wastewater treatment of seriously polluted enterprises of paper-making, printing and dyeing, leather-making, electroplating, food and chemical engineering and the like.
Description
Technical field
The present invention relates to a kind of technical field of sewage, the composite efficient of subparticle wadding is doubted agent in the artificial synthesising macromolecule copolymer adsorption-flocculation of a kind of specifically usefulness sewage.
Background technology
Along with China's industrialization, fast development of urbanization, the particularly development of the national economy grow at top speed for years, and the quantum of output of sanitary sewage and trade effluent is also more and more.In the sewage of these outputs, contain multiple hazardous and noxious substances, polluted water, contaminate environment is detrimental to health; Polluted enterprises such as particularly papermaking, process hides, printing and dyeing, plating, food, chemical industry, the trade effluent hazard rating of discharge is even more serious.Smelting reason sewage is protected environment, has become the important duty of governments at all levels.
Along with making constant progress of science and technology, sewage disposal technology has also obtained fast development; Add the sewage chemical treatment technology of " flocculation agent " in severe sewage, a kind of exactly new and high technology method of the improvement severe sewage that has just risen has caused that now each side shows great attention to.
Flocculation agent is a kind of polymer organic polymer of synthetic.This polymer organic polymer, because of its distinctive molecular structure and chemical functional, subparticle in the severe sewage is had stronger absorption, throwing out, can become " floc sedimentation " to the subparticle adsorption-condensation of inorganic substance that contain in the severe sewage and hardly degraded organic substance matter; By " on the floating " technology in the sewage disposal technology, floc sedimentation is emerged again, remove out and can realize the purpose that improves, purify water behind the floc sedimentation.
The adsorptive power of flocculation agent and flocculating effect, relevant with polymer organic polymer kind, the composition selected for use, also relevant, more relevant with quality index such as the polymerization degree of flocculation agent, molecular masses with the processing parameter of manufacturing flocculation agent.At present, the flocculation agent of selling in batches on the market at home, the overwhelming majority is to be major ingredient with natural polymerses such as treated starch, modified fibre, Sodium Alginates, mixing is mixed behind the high molecular polymer of a small amount of synthetic makes.Manufacture this class flocculation agent, technology is simple, equipment is few, and investment is little, and cost is not high; But because of the polymerization degree is lower, molecular mass is not high, large usage quantity during use, and need powerful mechanical stirring, so flocculating effect is not good; But be slightly better than nothing after all.
Summary of the invention
The objective of the invention is that the polymerization degree that exists at domestic flocculant product is lower, relative molecular mass is not high, weakness or deficiency such as big, the powerful mechanical stirring of needs of consumption when using, a kind of have high-polymerization degree, high molecule mass, consumption is lower, usage is simple, the absorption ability is strong, flocculating effect is good compound high-efficiency flocculating agent are provided.
The object of the present invention is achieved like this, research and design of the present invention be major ingredient with the water-soluble polymers polyacrylamide, with water-soluble polymers vinylformic acid, Natvosol, ethyl propenoate is active coagulant aids, with inorganic salts ferrous sulfate, Tai-Ace S 150 is the ingredients technical of catalysis flocculation agent, be basic theories such as the substance characteristics according to various groups of material, mutual compatibility synthesis mechanism, selection is determined after multiple scheme contrast screening.
The raw material of this flocculation agent forms and proportioning (calculating according to the mass fraction) is as follows: 75 parts of polyacrylamides; 8 parts in vinylformic acid; 6 parts of ethyl propenoates; 6 parts of Natvosols; 3 parts in ferrous sulfate; 2 parts in Tai-Ace S 150;
The flocculation agent outward appearance of being produced is a white powder, and putting into water has the suspension diffustivity, proportion: 0.922g/cm
3, fusing point: 160～170 ℃, burning-point: 595 ℃.
In above-mentioned proportion scale, all group material allocate component into, all allow ± 5% allocate the share deviation into.
This flocculant poly degree can reach 2 * 10
4～2 * 10
5Relative molecular mass can be up to 1,000 ten thousand～1,500 ten thousand;
The preparation method of flocculation agent of the present invention by metering be mixed, building-up reactions, stable concentrate, vacuum hydro-extraction, five processing steps of spraying drying realizes.
The described metering process of being mixed is; All group material weighing meterings, add distilled water then, after heating, stir into lysate; Metering is mixed and finishes in the general chemical production equipment " blade stirrer " of configuration; Common table scale is adopted in metering, weighs by the mass fraction of proportion scale requirement; The distilled water additional proportion heavily adds by 70～80% of all group material gross weights; Heating and temperature control is at 45 ℃～50 ℃; The rotating speed of blade stirrer is controlled at 25～30r/min; Churning time is controlled at 35～40min.
Described synthetic reaction process is: group material lysate is placed in vacuum, high temperature, the highly compressed environment, finishes the reaction of fusion synthetic chemistry, prepare the compound high-efficiency flocculating agent aqueous solution; Building-up reactions is finished in the general chemical production equipment " rotary type vacuum reactor " of configuration; Heating and temperature control is at 110 ℃～120 ℃; Reacting kettle inner pressure is controlled at 0.15～0.20Mpa; Reaction times is controlled at 65～70min; The rotation of reactor rotating cylinder is controlled at 40～45r/min; The reactor rotation is controlled at 10～15r/min.
Described stable concentration process is: the synthetic compound high-efficiency flocculating agent aqueous solution, carry out degree of depth stopping reaction by heated and stirred, and carry out preliminary hydro-extraction, the aqueous solution is condensed into the flocculation agent gel; Stable concentration process is to finish in the general chemical production equipment " evaporation concentration jar " of configuration; Heating and temperature control is at 75 ℃～80 ℃; Agitator speed is controlled at 40～45r/min; By realizing degree of enrichment 75～80% control concentration times.
Described vacuum hydro-extraction process is: being condensed into the flocculation agent gel, carry out the processed of solid-liquid separation again, make the flocculation agent gel of water ratio 20～25%, be processed into the flocculation agent floc sedimentation of water ratio≤8%; Vacuum hydro-extraction is to finish in the universalization construction equipment " traditional vacuum water extracter " of configuration; Centrifugal speed of rotation is controlled at 〉=800r/min; The filter membrane material is selected the polyethersulfone that water flux is big, rejection is high (PES) ultra-filtration membrane for use; Component type is selected scroll-type for use; Centrifugal impellent is controlled at 0.4～0.5Mpa.
Described spray-drying process is: the flocculation agent floc sedimentation that dewaters substantially, pulverize, spray, dry, material sieving technology handles, and makes powdered flocculation agent commodity; Spraying drying is to finish in the universalization construction equipment " spraying drying sieve apparatus " of configuration; Ejection pressure 〉=0.5Mpa; Drying temperature 〉=150 ℃; Ejection ability 50g/s; Water ratio≤0.3%.
The present invention has the following advantages and positively effect:
1, owing to select compatibility group material science, makes the group material in synthetic reaction process, can not only produce a large amount of type crystallizations fast, can also form the micro-pore structure at intramolecule; And the compatibility group material list body molecular chain that all has certain linear length, mutual coiling can take place, run through in synthetic reaction process in this long chain molecule chain link, forms reticulated structure.This molecular structure characteristics make flocculation agent possess absorption, coagulate the wadding ability.This separation structure characteristics of the compound high-efficiency flocculating agent that research and design of the present invention goes out, the polymerization degree can reach 2 * 10
4～2 * 10
5Relative molecular mass can be up to 1,000 ten thousand～1,500 ten thousand; Adsorptive power and flocculating effect to subparticle in the sewage can reach 98%.
2, flocculation agent is used in sewage disposal of the present invention, will come the various inorganic substance that contain in absorption, the flocculation sewage and the subparticle of hardly degraded organic substance matter by flocculation agent exactly, realizes the purpose that improves, purifies water.Have only the molecular structure of flocculation agent to have absorption and coagulate the characteristics of wadding, and the polymerization degree and relative molecular mass are high more, the absorption ability could be strong more, and flocculating effect could be good more.
3, the present invention is by multiple scheme test contrast screening, and research and design goes out optimum proportion component, the each component ratio mass fraction of compound high-efficiency flocculating agent, and the quantity that has solved selection batching during actual production is made is according to difficult problem.
4, the present invention is by the test examination, research and design goes out to manufacture the complete practical production technology route of compound high-efficiency flocculating agent and the Technology equipment of configuration, simultaneously accurately design concrete processing parameter, solved the good technique difficult problem in the actual production process.
Description of drawings
Fig. 1 is compound high-efficiency flocculating agent technological process of production figure.
Embodiment
Actual production manufacturing processed with preparation 180kg " compound high-efficiency flocculating agent " is an example
1., at first, the mass fraction of the component of preparing burden according to the present invention after taking into full account influence factors such as raw material processes expend and evaporation drying dehydration, calculates all group material of manufacturing 180kg " composite efficient flocculant " and allocates quantity into.
Various groups of material best in quality umbers of the present invention's design: 75 parts of polyacrylamides; 8 parts in vinylformic acid; 6 parts of ethyl propenoates; 6 parts of Natvosols; 3 parts in ferrous sulfate; 2 parts in Tai-Ace S 150.According to practical experience, the raw material process loss is about 5-6% in the production process.In view of the above, manufacture 180kg " compound high-efficiency flocculating agent ", need allocate various groups of material gross weights into and answer 190kg.Allocate mass fraction into by various groups of material, need allocate into after as calculated: poly-propionic acid acid amides 142.5kg; Vinylformic acid 15.2kg; Ethyl propenoate 11.4kg; Natvosol 11.4kg; Ferrous sulfate 5.7kg; Tai-Ace S 150 3.8kg; Add up to 190kg.
The group material lysate of allocating into of the present invention's design stipulates that dissolve medium is selected distilled water for use, allocates in all group material ultimate production 70-80% ratios; According to practical experience, select 75% allocation ratio, allocate distilled water 142kg into, the batching water ratio accounts for gross weight 43%.
2., " metering is mixed " processes, the configuration general chemical production equipment " blade stirrer " in finish.190kg all group material and 142kg distilled waters with computation weigh all join in " blade stirrer ", measure the processes that is mixed and handle.The Heating temperature of " blade stirrer " is controlled at 45-50 ℃; Rotating speed is controlled at 25-30r/min; Churning time is controlled at 35-40min.
After the processing of " metering is mixed " processes, obtain group material lysate gross weight 296kg.Wherein, group material component has 189.4kg, and consume 0.6kg accounts for and allocates 0.3% of group material total amount into; The distilled water of allocating into contains 106.6kg, vapour loss 35.4kg; Lysate water ratio 36%.
3., group material lysate is carried out " building-up reactions " processes.The 296kg of the success that is mixed group material lysate, all put into have vacuum, " the rotary type vacuum reactor " of high temperature, hyperbaric environment, carry out the synthesis process processing treatment.
The reaction heating and temperature control of " rotary type vacuum reactor " is at 110-120 ℃; Reacting kettle inner pressure is controlled at 0.15-0.20Mpa; Synthesising reacting time is controlled at 65-70min; Reactor rotating cylinder rotational velocity is controlled at 40-45r/min; The reactor speed of rotation is controlled at 10-15r/min.
After the processing of " building-up reactions " processes, obtain synthetic compound high-efficiency flocculating agent aqueous solution 290kg.Wherein, group material component has 189kg, and consume 0.4kg accounts for and allocates 0.2% of group material total amount into; The distilled water of allocating into contains 101kg, the little consumption of vacuum 5.6kg; The water ratio of flocculant aqueous solution is 35%.
4., flocculant aqueous solution is carried out " stable concentrating " processes.Synthetic flocculant aqueous solution, put into " evaporation concentration jar " and carry out degree of depth stopping reaction, simultaneously, carry out the preliminary hydro-extraction concentration technology and handle.
The heating and temperature control of " evaporation concentration jar " is at 75-80 ℃; Agitator speed is controlled at 40-45r/min; The degree of enrichment of the 75-80% that reaches according to processing requirement, the control stabilization concentration time makes flocculant aqueous solution be condensed into gel.
After " stable concentrating " processes is handled, the shape flocculation agent gel 241kg that obtains.Wherein, group material component has 186.6kg, and consume 2.4kg accounts for and allocates 1.2% of group material total amount into; Distilled water contains 54.4kg, deviates from moisture 46.6kg; The water ratio of flocculation agent gel is 22.6%.Degree of enrichment reaches 77.4%.
5., the flocculation agent gel is carried out " vacuum hydro-extraction " processes.Put into " traditional vacuum water extracter " and carry out dehydration processing again and handle stablizing spissated flocculation agent gel.
The speed of rotation of " traditional vacuum water extracter " is controlled at 〉=800r/min; Centrifugal impellent is controlled at 0.4-0.5Mpa; The filter membrane material selects for use water flux big, " polyethersulfone (PES) " ultra-filtration membrane that rejection is high; Component type is selected scroll-type for use.
After " vacuum hydro-extraction " processes is handled, obtain flocculation agent floc sedimentation 202.6kg.Wherein, group material component has 186kg, and consume 0.6kg accounts for the 0.3kg that allocates group material gross weight into; Distilled water contains 16.6kg, deviates from moisture 37.8kg; The water ratio of flocculation agent floc sedimentation is 8.19%.
6., the flocculation agent floc sedimentation is carried out " spraying drying " processes.The flocculation agent floc sedimentation, put into " spraying drying sieve apparatus ", pulverize, spray, dry, screening handles, and makes powdered flocculation agent commodity.
After " spraying drying " processes is handled, the compound high-efficiency flocculating agent powdered commodity 180kg that obtains.Wherein, group material component has 179.55kg, and wastage in bulk or weight 10.45kg accounts for and allocates 5.5% of group material gross weight into; The distilled water of allocating into contains 0.45kg, drying and dehydrating 16.15kg; Flocculation agent powder commodity water ratio 0.25%.
7., the flocculation agent powder made, after the weighing, the packing warehouse-in is treated pin as calculated.
Claims (2)
1, a kind of compound high-efficiency flocculating agent, it is characterized in that: this flocculation agent is to be major ingredient with the water-soluble polymers polyacrylamide, with water-soluble polymers vinylformic acid, Natvosol, ethyl propenoate is active coagulant aids, with inorganic salts ferrous sulfate, Tai-Ace S 150 is the catalysis flocculation agent, by metering be mixed, building-up reactions, stable concentrate, white powder material that vacuum hydro-extraction, five processing steps of spraying drying are prepared from;
The concrete weight proportion of above-mentioned raw materials is as follows:
75 parts of polyacrylamides, 8 parts in vinylformic acid, 6 parts of ethyl propenoates,
6 parts of Natvosols, 3 parts in ferrous sulfate, 2 parts in Tai-Ace S 150;
The flocculation agent that makes is put into water the suspension diffustivity, proportion: 0.922g/cm
3, fusing point: 160～170 ℃, burning-point: 595 ℃;
The polymerization degree is 2 * 10
4～2 * 10
5Relative molecular mass is 1,000 ten thousand～1,500 ten thousand.
2, a kind of compound high-efficiency flocculating agent according to claim 1 is characterized in that:
1., the described metering process of being mixed is; All group material weighing meterings, add distilled water then, after heating, stir into lysate; Metering is mixed and finishes in the general chemical production equipment " blade stirrer " of configuration; Common table scale is adopted in metering, weighs by the mass fraction of proportion scale requirement; The distilled water additional proportion heavily adds by 70～80% of all group material gross weights; Heating and temperature control is at 45 ℃～50 ℃; The rotating speed of blade stirrer is controlled at 25～30r/min; Churning time is controlled at 35～40min;
2., described synthetic reaction process is: group material lysate is placed in vacuum, high temperature, the highly compressed environment, finishes the reaction of fusion synthetic chemistry, prepare the compound high-efficiency flocculating agent aqueous solution; Building-up reactions is finished in the general chemical production equipment " rotary type vacuum reactor " of configuration; Heating and temperature control is at 110 ℃～120 ℃; Reacting kettle inner pressure is controlled at 0.15～0.20Mpa; Reaction times is controlled at 65～70min; The rotation of reactor rotating cylinder is controlled at 40～45r/min; The reactor rotation is controlled at 10～15r/min;
3., described stable concentration process is: the synthetic compound high-efficiency flocculating agent aqueous solution, carry out degree of depth stopping reaction by heated and stirred, and carry out preliminary hydro-extraction, the aqueous solution is condensed into the flocculation agent gel; Stable concentration process is to finish in the general chemical production equipment " evaporation concentration jar " of configuration; Heating and temperature control is at 75 ℃～80 ℃; Agitator speed is controlled at 40～45r/min; By realizing degree of enrichment 75～80% control concentration times;
4., described vacuum hydro-extraction process is: being condensed into the flocculation agent gel, carry out the processed of solid-liquid separation again, make the flocculation agent gel of water ratio 20～25%, be processed into the flocculation agent floc sedimentation of water ratio≤8%; Vacuum hydro-extraction is to finish in the universalization construction equipment " traditional vacuum water extracter " of configuration; Centrifugal speed of rotation is controlled at 〉=800r/min; The filter membrane material is selected the polyethersulfone that water flux is big, rejection is high (PES) ultra-filtration membrane for use; Component type is selected scroll-type for use; Centrifugal impellent is controlled at 0.4～0.5Mpa;
5., described spray-drying process is: the flocculation agent floc sedimentation that dewaters substantially, pulverize, spray, dry, material sieving technology handles, and makes powdered flocculation agent commodity; Spraying drying is to finish in the universalization construction equipment " spraying drying sieve apparatus " of configuration; Ejection pressure 〉=0.5Mpa; Drying temperature 〉=150 ℃; Ejection ability 50g/s; Water ratio≤0.3%.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464399A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Composite agent for removing manganese in wastewater and application method thereof |
| CN103011466A (en) * | 2012-12-07 | 2013-04-03 | 常州大学 | Method for removing manganese in sewage |
| CN104261529A (en) * | 2014-09-19 | 2015-01-07 | 句容亿格纳米材料厂 | Nano titanium dioxide coating flocculant and preparation method thereof |
| CN106365283A (en) * | 2016-11-24 | 2017-02-01 | 刘可 | Flocculant for treating slaughter wastewater, and preparation method and application thereof |
| CN107986415A (en) * | 2017-12-08 | 2018-05-04 | 周爱国 | A kind of sludge separation formula and preparation method thereof |
| CN109650593A (en) * | 2019-01-14 | 2019-04-19 | 广州市汇鹏建设有限公司 | A kind of method for the treatment of city waste water |
| CN111995028A (en) * | 2020-07-07 | 2020-11-27 | 广西夏阳环保科技有限公司 | Printing and dyeing wastewater composite treatment agent and preparation method thereof |
-
2008
- 2008-02-25 CN CN200810050405A patent/CN101519237A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464399A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Composite agent for removing manganese in wastewater and application method thereof |
| CN103011466A (en) * | 2012-12-07 | 2013-04-03 | 常州大学 | Method for removing manganese in sewage |
| CN104261529A (en) * | 2014-09-19 | 2015-01-07 | 句容亿格纳米材料厂 | Nano titanium dioxide coating flocculant and preparation method thereof |
| CN106365283A (en) * | 2016-11-24 | 2017-02-01 | 刘可 | Flocculant for treating slaughter wastewater, and preparation method and application thereof |
| CN107986415A (en) * | 2017-12-08 | 2018-05-04 | 周爱国 | A kind of sludge separation formula and preparation method thereof |
| CN109650593A (en) * | 2019-01-14 | 2019-04-19 | 广州市汇鹏建设有限公司 | A kind of method for the treatment of city waste water |
| CN109650593B (en) * | 2019-01-14 | 2021-09-24 | 广州市汇鹏建设有限公司 | Urban sewage treatment method |
| CN111995028A (en) * | 2020-07-07 | 2020-11-27 | 广西夏阳环保科技有限公司 | Printing and dyeing wastewater composite treatment agent and preparation method thereof |
| CN111995028B (en) * | 2020-07-07 | 2023-01-06 | 广西夏阳环保科技有限公司 | Printing and dyeing wastewater composite treatment agent and preparation method thereof |
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Open date: 20090902 |