CN101708907A - Silt and sewage treatment method - Google Patents
Silt and sewage treatment method Download PDFInfo
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- CN101708907A CN101708907A CN200910154347A CN200910154347A CN101708907A CN 101708907 A CN101708907 A CN 101708907A CN 200910154347 A CN200910154347 A CN 200910154347A CN 200910154347 A CN200910154347 A CN 200910154347A CN 101708907 A CN101708907 A CN 101708907A
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Abstract
The invention relates to a silt and sewage treatment method, and belongs to the technical field of mine sewage treatment. The method comprises the following steps: (1) performing silt separation, namely performing primary separation on the silt and the sewage, and separating sand out; (2) performing sedimentation treatment, namely adding 0.2 to 0.4 mass percent solution of anionic polyacrylamide into the sewage, then adding 0.1 to 0.3 mass percent solution of anionic polyacrylamide into the sewage after sediment is generated, and separating the sediment out; and (3) performing sediment filter pressing, namely filter-pressing the sediment separated out by the step (2). The method of the invention effectively solves the mine sewage treatment problem, and separates three useful substances out comprising coarse sand, fine sand and sludge so as to increase the creation income of the enterprise.
Description
Technical field
The present invention relates to a kind of silt and sewage treatment method, belong to the mine technical field of sewage.
Background technology
The processing of the washing sewage that rubble produced is a great problem of bargh always, and traditional way is general to adopt three grades of settling tanks that sewage is handled.This kind method is used till today in numerous barghs always.But three grades of precipitations have many drawbacks, the one, and the sedimentary time is longer; The 2nd, contain the more chiltern useful matter that becomes to grade in the mud that goes out clearly, resource loss in vain; The 3rd, the mud water ratio height that goes out clearly must could handle after the natural mummification, but drying time is oversize, not only takies large-area soil, but also might be caused environmental pollution.
Summary of the invention
The objective of the invention is provides a kind of silt and sewage treatment method for solving the problems of the technologies described above.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of silt and sewage treatment method comprises the steps:
1. sand separation: silt particle sewage is carried out initial gross separation, isolate sand grains;
2. precipitation process: add mass concentration and be 0.2～0.4% anion-polyacrylamide solution; After precipitation generates, add 0.1～0.3% anion-polyacrylamide solution again; Isolate precipitation;
3. precipitate press filtration: will 2. go on foot isolated precipitation press filtration.
In the technique scheme of the present invention, 1. step is that granularity is big, that density is big sandstone is separated from water; Step 2. be with flocculation agent with all kinds of Impurity removals in the sewage, sewage just can become clear water, can satisfy the demand of mine water; 3. step is that the precipitation that 2. step obtains is pressed dry, and just can obtain mud, and described mud also is a kind of product.The present invention can not only comparatively fast reclaim the various solid contents in the rubble sewage, has also solved the technical problem that the prior art sedimentation time is long, resource runs off in vain and the mud water ratio is high effectively.
As preferably, described silt particle sewage carries out initial gross separation and comprises flash trapping stage and secondary separating step, and described flash trapping stage is a step of isolating coarse sand, and it is the step of isolating fine sand that described secondary separates.
Coarse sand and fine sand are separated respectively, improved the utilization ratio of resource, improved the speed and the quality of sewage treatment process simultaneously.
As preferably, described flash trapping stage goes out coarse sand for adopting spiral centrifugation.
As preferably, described secondary is separated into and adopts swirler group and high-frequency vibration device to isolate fine sand.
As preferably, the press filtration of step described in 3. utilizes automatic arm-tie pressure filter to finish.
Described spiral separating centrifuge, swirler group and high-frequency vibration device, automatic arm-tie pressure filter are the plant and instrument that those skilled in the art use always in rubble manufacturing, production process.
As preferably, 2. described step is 0.3% anion-polyacrylamide solution for adding mass concentration; After precipitation generates, add 0.2% anion-polyacrylamide solution again, isolate precipitation at last.
Successively adopted massfraction to be respectively 0.3% and 0.2% anion-polyacrylamide in the technique scheme and obviously improved water purifying efficient as flocculation agent.
Organic polymer coargulator has that consumption is few, flocculation rate is fast, coexisted salt pH value and temperature effect are little, and characteristics such as processing easily.Its flocculation mechanism of flocculation agent that anion-polyacrylamide uses as the present invention have following some: because it has polarity gene-amide group, be easy to borrow its hydrogen strong act on the sand grain surface adsorption; Because of it has very long molecular chain, the long-chain of the big order of magnitude has huge adsorption surface area in water, so throwing out is good, can utilize long-chain to build bridge between particle, forms oarse-grained flocs unit, quickens sedimentation; By means of the flocculation of polyacrylamide-help and coagulate, coagulate at the mud of clean water treatment the double ioinization compression may take place in the process, particle aggregation stability is reduced, and particle combines under the molecular attraction effect, and the simple negatively charged ion of disperse phase can be aggregated the thing anionic group and replace; Suspended substance in material during polymer and natural water are formed and the water, or chemical interaction takes place between the ion of the hydrolysis coagulating agent that added before it, may be complex reaction; Because molecular chain is fixed on the surface of variable grain, form the polymerization bridge between each solid phase particles.The consolidating of above-mentioned characteristic and rubble sewage contains thing and matches.
But be not that the flocculation agent consumption is The more the better, when particle surface is aggregated the supersaturation of thing molecule, will cause flocculation to worsen, because the free terminal of flocculating agent molecule also can be adsorbed on the same surface in this case, form bending, lead intergranular bridge formation mutually in conjunction with number thereby minimizing.So the inventor obtains following technical scheme through long term studies and summary: the concentration of selected flocculation agent can not be too high when disposing of sewage, when first treated, select for use 0.3% to be advisable, but only may not reach the standard of purification of water quality by primary treatment.So take two sections purification process methods to remove impurity in the sewage, the concentration of anion-polyacrylamide is 0.2% to be advisable during secondary treatment.
As preferably, also include before 2. in described step and to add the step that concentration is 3～5% polymeric aluminum chlorides solution.
The inorganic polymer flocculation agent can provide a large amount of complexing ions, and can the strong adsorption colloidal particle, by absorption, crane span structure, crosslinked action, thereby makes coacervation of colloid; Also physicochemical change can take place simultaneously, in and the electric charge on colloidal particle and suspended substance surface, reduce the δ current potential, colloidal particle are become mutually by original repelling each other inhale, colloidal particle are collided mutually, thereby form cotton-shaped coagulating sedimentation.Polymerize aluminum chloride is as the selected inorganic polymer flocculation agent of the inventive method, is that aluminium salt hydrolysis-polymerisate electrically neutralizes, takes off steady to it and the adsorption bridging effect generates the coarse particles flocs unit and removes to the coagulation of water-borne glue body particle or colloid pollution thing.Its molecular chain of anion-polyacrylamide is very long, its amide group (CONH
2) can be affine with many materials, absorption forms hydrogen bond, this just makes it build bridge between the particle of absorption, and several even dozens of particle are linked together, and generates floc sedimentation, accelerated particle sinks.The flocculation mechanism difference of these two kinds of flocculation agents is successively used the effect that can play mutual help.
But the tiring when the possibility of result that two class flocculation agents use simultaneously uses respectively than both is lower, its reason is: do not quicken sedimentation thereby can all not combine with multiple flocculation agent when having multiple flocculation agent around the particle, cause the ability of conglomeration to reduce thereby can combine different types of flocculation agent because of particle on the contrary, thereby make the effect of flocculation weaken.The present invention successively uses two kinds of flocculation agents, and colloidal solid or colloid pollution thing in going out to anhydrate with polymerize aluminum chloride are earlier removed remaining most impurity by anion-polyacrylamide again, obtain optimization with the effect of guaranteeing to flocculate.
As preferably, the mass concentration of described polymerize aluminum chloride is 5%.
As preferably, the compound method of described anion-polyacrylamide solution is: add water and stir under the condition of 50～60 ℃ of temperature, stirring velocity remains on 500～600 rev/mins.
The dissolving of polyacrylamide needs certain temperature, to accelerate dissolution rate.But temperature is too high, can make the molecular rupture of superpolymer again, reduces result of use, and suitable solvent temperature is 50～60 ℃.The dissolving of polyacrylamide should avoid strong shearing force to stir, and strong excessively stirring can make molecular rupture, thereby reduced result of use.
Be also noted that following item when preparation anion-polyacrylamide solution: homodisperse feeds intake, anion-polyacrylamide dissolved key link is the homodisperse that feeds intake, after starting stirrer, preferably adopt the mechanical shock screen cloth to feed intake, avoid producing " agglomerate bulk ", " fish-eye shaped " indissoluble particle daytime, thereby make the poly-propionic acid amide of anionic fully be dissolved the result of use of bringing into play; Avoid connecing and separate, stir and carry in the dosing system, preferably adopt materials such as plastics, enamel, aluminium, stainless steel in dissolving with iron; Prepare two dissolvers for every section, the dissolving of polyacrylamide need be stirred about 40 minutes, and no anion-polyacrylamide solution adds in the process of changing dressings in order to avoid, and should prepare two dissolvers for every section.
The inventor has done following experiment when studying polymerize aluminum chloride and anion-polyacrylamide to the particulate throwing out in the sewage:
Respectively pack into the sewage of 200ml of 10 beakers is got in experiment one, is taken up in order of priority by different ratios then to add polymeric aluminum chlorides solution and anion-polyacrylamide solution, carries out the sedimentation floc test, and experimental result is as shown in the table.
Respectively pack into the sewage of 200ml of 10 beakers is got in experiment two, adds the anion-polyacrylamide solution of different amounts then respectively.This is tested APAM concentration and is respectively 1 ‰ and 2 ‰, joins in the 200ml sewage by different ratios, carries out the sedimentation floc test, and test-results is as shown in the table.
From experimental result as can be seen, after using polymerize aluminum chloride and two kinds of dissimilar flocculation agents of anion-polyacrylamide, there has been tangible shortening the settling time, just means that also effect of settling is better.As test one the 7th group of data presentation, and the alumen ustum size is bigger as a result for this group, and the settling time is shorter.But because will consider the factors such as toxicity of Financial cost, flocculation agent, often selecting not is the best scheme group of effect but effect scheme group preferably when using at ordinary times.
In sum, the present invention has following beneficial effect:
1, the inventive method has solved the difficult problem how sewage in mine is handled effectively, and isolates coarse sand, fine sand, the useful material of mud three classes, has increased enterprise's extra earning.
2, the inventive method has the cleaning water height, the advantage that purifying water effect is good;
3, the inventive method has successively used polymerize aluminum chloride and anion-polyacrylamide as flocculation agent at the characteristics of silt particle sewage, has beyond thought effect;
4, the inventive method is taken all factors into consideration from purifying water effect, cleaning water and economy and environmental angle many-side, and demonstration by experiment, and the concentration of two kinds of flocculation agents that adopted is the most rational; Moreover, both successively use the effect that is obtained to use the effect that is obtained far better respectively than both;
5, through measuring and calculating, the enterprise that a day produces 4000 tons of sewage can extract about 92 tons of coarse sand every day, by 25 yuan of/ton calculating, can increase income 2300 yuan/day; After the second-stage treatment, make water medium sand mud solids content drop to 1.54% from 3.2% and reduced 1.66%, can extract about 66.4 tons of fine sand same every day; 61.6 tons in mud after the mummification by 3 yuan of/ton calculating, can increase income 185 yuan/day.Enterprise increases income 4327 yuan (coarse sands: 2300 yuan, fine sand: 996 yuan, mud: 185 yuan, cycling use of water: 846 yuan) every day.1 year by calculating in 300 days, increase income 129.8 ten thousand yuan every year, (the electricity charge :=560 yuan/day of 800 degree/skies * 0.7 yuan/spend, 320 yuan/day of mechanical consumable accessorys of annual 31.8 ten thousand yuan of deduction running cost, medicament expense: 180 yuan/day, add up to 1060 yuan/day, annual by calculating in 300 days), have a net increase of 980,000 yuan of incomes every year.Dispose of sewage input 1,500,000 yuan like this, just be recoverable to less than 2 years.The utilization of novel process, new technology, new installation is for the comprehensive utilization of the making full use of of water resources, Mineral resources is laid a good foundation.
Embodiment
This specific embodiment only is an explanation of the invention; it is not a limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as all are subjected to the protection of patent law in claim scope of the present invention.
Embodiment 1
A kind of silt and sewage treatment method, sewage are that stone quarry washing rubble produces, and wherein contain a large amount of silt particles, and solid content is about 4%.Present embodiment is directly handled producing the sewage of discharging on the line, the sewage coarse sand tripping device of flowing through successively, fine sand tripping device, one-level flocculation agent adding apparatus, secondary flocculation agent adding apparatus.Said apparatus is handled sewage successively.
At first above-mentioned sewage is at first carried out sand separation, above-mentioned sand separation step comprises flash trapping stage and secondary separating step.The flash trapping stage step adopts spiral centrifugation to go out coarse sand in the sewage, and secondary separates and adopts swirler group and high-frequency vibration device to isolate fine sand in the sewage.
Preparation anion-polyacrylamide solution: add water and stirring under the about 50 ℃ condition of temperature in the container that fills anion-polyacrylamide, its stirring velocity remains on 500 rev/mins, treats that fully the dissolving back is standby.
Anion-polyacrylamide (APAM) solution for preparing is joined through in the sewage of above-mentioned sand separation step.The step of above-mentioned adding anion-polyacrylamide solution is divided into two stages, at first adds 2 ‰ APAM solution in sewage, and the volume ratio of solution and sewage is about 1: 40000.After adding APAM solution, produce post precipitation in the sewage, add 1 ‰ APAM solution once more in sewage, the volume ratio of solution and sewage is about 1: 40000.Be 10～30 seconds the pitch time of above-mentioned usually twice adding APAM solution.
In the present embodiment, the anion-polyacrylamide dissolving requires to feed intake homodisperse.It adopts the mechanical shock screen cloth to feed intake, and avoids producing " agglomerate bulk ", " fish-eye shaped " indissoluble particle, thereby makes poly-propionic acid amide fully be dissolved the result of use of bringing into play.Solution preferably adopts materials such as plastics, enamel, aluminium, stainless steel in dissolving stirring and conveying dosing system, avoid adopting ferrous material.
After adding twice flocculation agent, sewage precipitates through three grades of settling tanks, isolates behind the throw out from three grades of settling tank water outlets.Throw out in three grades of settling tanks also needs through automatic arm-tie pressure filter pressure filtration yielding water.
Embodiment 2
A kind of silt and sewage treatment method, sewage are that stone quarry washing rubble produces, and wherein contain a large amount of silt particles, and solid content is about 5%.Present embodiment is directly handled producing the sewage of discharging on the line, the sewage coarse sand tripping device of flowing through successively, fine sand tripping device, one-level flocculation agent adding apparatus, secondary flocculation agent adding apparatus.Said apparatus is handled sewage successively.
At first above-mentioned sewage is at first carried out sand separation, above-mentioned sand separation step comprises flash trapping stage and secondary separating step.The flash trapping stage step adopts spiral centrifugation to go out coarse sand in the sewage, and secondary separates and adopts swirler group and high-frequency vibration device to isolate fine sand in the sewage.
Preparation anion-polyacrylamide solution: add water and stirring under the about 60 ℃ condition of temperature in the container that fills anion-polyacrylamide, its stirring velocity remains on 600 rev/mins, treats that fully the dissolving back is standby.
The anion-polyacrylamide solution for preparing is joined through in the sewage of above-mentioned sand separation step.The step of above-mentioned adding anion-polyacrylamide solution is divided into two stages, at first adds 4 ‰ APAM solution in sewage, and the volume ratio of solution and sewage is about 1: 40000.After adding APAM solution, produce post precipitation in the sewage, add 3 ‰ APAM solution once more in sewage, the volume ratio of solution and sewage is about 1: 40000.Be 10～30 seconds the pitch time of above-mentioned usually twice adding APAM solution.
In the present embodiment, the dissolving of anion-polyacrylamide requires to feed intake homodisperse.It adopts the mechanical shock screen cloth to feed intake, and avoids producing " agglomerate bulk ", " fish-eye shaped " indissoluble particle, thereby makes poly-propionic acid amide fully be dissolved the result of use of bringing into play.Solution preferably adopts materials such as plastics, enamel, aluminium, stainless steel in dissolving stirring and conveying dosing system, avoid adopting ferrous material.
After adding twice flocculation agent, sewage precipitates through three grades of settling tanks, isolates behind the throw out from three grades of settling tank water outlets.Throw out in three grades of settling tanks also needs through automatic arm-tie pressure filter pressure filtration yielding water.
Embodiment 3
A kind of silt and sewage treatment method, sewage are that stone quarry washing rubble produces, and wherein contain a large amount of silt particles, and solid content is about 4.5%.Present embodiment is directly handled producing the sewage of discharging on the line, the sewage coarse sand tripping device of flowing through successively, fine sand tripping device, one-level flocculation agent adding apparatus, secondary flocculation agent adding apparatus.Said apparatus is handled sewage successively.
At first above-mentioned sewage is at first carried out sand separation, above-mentioned sand separation step comprises flash trapping stage and secondary separating step.The flash trapping stage step adopts spiral centrifugation to go out coarse sand in the sewage, and secondary separates and adopts swirler group and high-frequency vibration device to isolate fine sand in the sewage.
Preparation anion-polyacrylamide solution: add water and stirring under the about 55 ℃ condition of temperature in the container that fills anion-polyacrylamide, its stirring velocity remains on 550 rev/mins, treats that fully the dissolving back is standby.
The anion-polyacrylamide solution for preparing is joined through in the sewage of above-mentioned sand separation step.The step of above-mentioned adding anion-polyacrylamide solution is divided into two stages, at first adds 3 ‰ APAM solution in sewage, and the volume ratio of solution and sewage is about 1: 38000.After adding APAM solution, produce post precipitation in the sewage, add 2 ‰ APAM solution once more in sewage, the volume ratio of solution and sewage is about 1: 40000.Be 10～30 seconds the pitch time of above-mentioned usually twice adding APAM solution.
In the present embodiment, the anion-polyacrylamide dissolving requires to feed intake homodisperse.It adopts the mechanical shock screen cloth to feed intake, and avoids producing " agglomerate bulk ", " fish-eye shaped " indissoluble particle, thereby makes poly-propionic acid amide fully be dissolved the result of use of bringing into play.Solution preferably adopts materials such as plastics, enamel, aluminium, stainless steel in dissolving stirring and conveying dosing system, avoid adopting ferrous material.
After adding twice flocculation agent, sewage precipitates through three grades of settling tanks, isolates behind the throw out from three grades of settling tank water outlets.Throw out in three grades of settling tanks also needs through automatic arm-tie pressure filter pressure filtration yielding water.
Embodiment 4
A kind of silt and sewage treatment method, sewage are that stone quarry washing rubble produces, and wherein contain a large amount of silt particles, and solid content is about 4%.Present embodiment is directly handled producing the sewage of discharging on the line, the sewage coarse sand tripping device of flowing through successively, fine sand tripping device, one-level flocculation agent adding apparatus, secondary flocculation agent adding apparatus.Said apparatus is handled sewage successively.
At first above-mentioned sewage is at first carried out sand separation, above-mentioned sand separation step comprises flash trapping stage and secondary separating step.The flash trapping stage step adopts spiral centrifugation to go out coarse sand in the sewage, and secondary separates and adopts swirler group and high-frequency vibration device to isolate fine sand in the sewage.
Preparation anion-polyacrylamide solution: add water and stirring under the about 53 ℃ condition of temperature in the container that fills anion-polyacrylamide, its stirring velocity remains on 560 rev/mins, treats that fully the dissolving back is standby.Adopt the dissolving that uses the same method and obtain 5% polymeric aluminum chlorides solution, standby.
The anion-polyacrylamide solution for preparing is joined through in the sewage of above-mentioned sand separation step.The step of above-mentioned adding anion-polyacrylamide solution is divided into two stages, at first adds 3 ‰ APAM solution in sewage, and the volume ratio of solution and sewage is about 1: 40000.After adding APAM solution, produce post precipitation in the sewage, add 2 ‰ APAM solution once more in sewage, the volume ratio of solution and sewage is about 1: 37000.Be 10～30 seconds the pitch time of above-mentioned usually twice adding APAM solution.Add 5% polymeric aluminum chlorides solution once more in sewage, the ratio of solution and sewage is 1: 40000.
In the present embodiment, the anion-polyacrylamide dissolving requires to feed intake homodisperse.It adopts the mechanical shock screen cloth to feed intake, and avoids producing " agglomerate bulk ", " fish-eye shaped " indissoluble particle, thereby makes poly-propionic acid amide fully be dissolved the result of use of bringing into play.Solution preferably adopts materials such as plastics, enamel, aluminium, stainless steel in dissolving stirring and conveying dosing system, avoid adopting ferrous material.
After adding three flocculation agents, sewage also needs through three grades of settling tanks precipitations, isolates behind the throw out from three grades of settling tank water outlets.Throw out in three grades of settling tanks also needs through automatic arm-tie pressure filter pressure filtration yielding water.
Embodiment 5
A kind of silt and sewage treatment method, sewage are that stone quarry washing rubble produces, and wherein contain a large amount of silt particles, and solid content is about 4%.Present embodiment is directly handled producing the sewage of discharging on the line, the sewage coarse sand tripping device of flowing through successively, fine sand tripping device, one-level flocculation agent adding apparatus, secondary flocculation agent adding apparatus.Said apparatus is handled sewage successively.
At first above-mentioned sewage is at first carried out sand separation, above-mentioned sand separation step comprises flash trapping stage and secondary separating step.The flash trapping stage step adopts spiral centrifugation to go out coarse sand in the sewage, and secondary separates and adopts swirler group and high-frequency vibration device to isolate fine sand in the sewage.
Preparation anion-polyacrylamide solution: add water and stirring under the about 50 ℃ condition of temperature in the container that fills anion-polyacrylamide, its stirring velocity remains on 500 rev/mins, treats that fully the dissolving back is standby.Adopt the dissolving that uses the same method and obtain 5% polymeric aluminum chlorides solution, standby.
The anion-polyacrylamide solution for preparing is joined through in the sewage of above-mentioned sand separation step.The step of above-mentioned adding anion-polyacrylamide solution is divided into two stages, at first adds 2 ‰ APAM solution in sewage, and the volume ratio of solution and sewage is about 1: 40000.After adding APAM solution, produce post precipitation in the sewage, add 1 ‰ APAM solution once more in sewage, the volume ratio of solution and sewage is about 1: 40000.Be 10～30 seconds the pitch time of above-mentioned usually twice adding APAM solution.Add 5% polymeric aluminum chlorides solution once more in sewage, the ratio of solution and sewage is 1: 40000.
In the present embodiment, the anion-polyacrylamide dissolving requires to feed intake homodisperse.It adopts the mechanical shock screen cloth to feed intake, and avoids producing " agglomerate bulk ", " fish-eye shaped " indissoluble particle, thereby makes poly-propionic acid amide fully be dissolved the result of use of bringing into play.Solution preferably adopts materials such as plastics, enamel, aluminium, stainless steel in dissolving stirring and conveying dosing system, avoid adopting ferrous material.
After adding three flocculation agents, sewage also needs through three grades of settling tanks precipitations, isolates behind the throw out from three grades of settling tank water outlets.Throw out in three grades of settling tanks also needs through automatic arm-tie pressure filter pressure filtration yielding water.
Claims (9)
1. a silt and sewage treatment method comprises the steps:
1. sand separation: silt particle sewage is carried out initial gross separation, isolate sand grains;
2. precipitation process: adding mass concentration is the anion-polyacrylamide solution of 0.2-0.4%; After precipitation is finished, add the anion-polyacrylamide solution of 0.1-0.3% again; Isolate precipitation;
3. precipitate press filtration: will 2. go on foot isolated precipitation press filtration.
2. silt and sewage treatment method according to claim 1 is characterized in that:
Described silt particle sewage carries out initial gross separation and comprises flash trapping stage and secondary separating step, and described flash trapping stage is a step of isolating coarse sand, and it is the step of isolating fine sand that described secondary separates.
3. silt and sewage treatment method according to claim 2 is characterized in that: described flash trapping stage goes out coarse sand for adopting spiral centrifugation.
4. silt and sewage treatment method according to claim 2 is characterized in that: described secondary is separated into and adopts swirler group and high-frequency vibration device to isolate fine sand.
5. silt and sewage treatment method according to claim 1 is characterized in that: the press filtration of step described in 3. utilizes automatic arm-tie pressure filter to finish.
6. silt and sewage treatment method according to claim 1 is characterized in that: also include before 2. in described step and add the step that concentration is 3～5% polymeric aluminum chlorides solution.
7. silt and sewage treatment method according to claim 1 is characterized in that: the compound method of described anion-polyacrylamide solution is, adds water and stir under the condition of 50～60 ℃ of temperature, and stirring velocity remains on 500～600 rev/mins.
8. silt and sewage treatment method according to claim 1 is characterized in that: 2. described step is 0.3% anion-polyacrylamide solution for the adding mass concentration; After precipitation is finished, add 0.2% anion-polyacrylamide solution again, isolate precipitation at last.
9. a kind of silt sewage water treatment method according to claim 6 is characterized in that: the mass concentration of described polymerize aluminum chloride is 5%.
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| CN102260032A (en) * | 2010-05-26 | 2011-11-30 | 佛山科创玮景环保技术有限公司 | Sludge treatment method |
| CN104261633A (en) * | 2014-10-16 | 2015-01-07 | 滁州友林科技发展有限公司 | High-sludge industrial sewage treatment process |
| CN104556456A (en) * | 2015-01-20 | 2015-04-29 | 重庆科创职业学院 | Integrated sewage treatment experiment tank |
| CN105836932A (en) * | 2016-06-12 | 2016-08-10 | 贵州晨辉达矿业工程设计有限公司 | Method for treating wastewater containing sediment |
| CN107473352A (en) * | 2017-08-30 | 2017-12-15 | 杭州萧山环境投资发展有限公司 | A kind of flocculant and its purification method of slime water fast purification |
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| CN1990129A (en) * | 2005-12-28 | 2007-07-04 | 罗以杰 | A method for comprehensive treatment of construction refuse |
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| CN102260032A (en) * | 2010-05-26 | 2011-11-30 | 佛山科创玮景环保技术有限公司 | Sludge treatment method |
| CN102260032B (en) * | 2010-05-26 | 2013-06-12 | 佛山科创玮景环保技术有限公司 | Sludge treatment method |
| CN104261633A (en) * | 2014-10-16 | 2015-01-07 | 滁州友林科技发展有限公司 | High-sludge industrial sewage treatment process |
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| CN111847731A (en) * | 2020-08-27 | 2020-10-30 | 湖北磊雅鑫盛石业有限公司 | Method for recycling stone wastewater and by-producing building raw materials |
| CN113354155A (en) * | 2021-07-08 | 2021-09-07 | 新汶矿业集团设计研究院有限公司 | Horizontal centrifuge-based sewage treatment system and method for mine construction |
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