CN110467288A - A kind for the treatment of process of Mine System - Google Patents
A kind for the treatment of process of Mine System Download PDFInfo
- Publication number
- CN110467288A CN110467288A CN201910797844.6A CN201910797844A CN110467288A CN 110467288 A CN110467288 A CN 110467288A CN 201910797844 A CN201910797844 A CN 201910797844A CN 110467288 A CN110467288 A CN 110467288A
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- CN
- China
- Prior art keywords
- water
- mine system
- carries out
- mine
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind for the treatment of process of Mine System, are related to technical field of sewage, comprising the following steps: Mine System enters the adjusting that conditioning tank carries out water and water quality；Mine System after adjusting enters mixed flocculation reaction deposition device, and the pH that sodium hydroxide adjusts Mine System is added, and milk of lime is then added using lime softening method and carries out hard-off processing, adds PAC and PAM and carries out flocculation sedimentation processing, is finally separated by solid-liquid separation；The high water tank that supernatant after separation of solid and liquid is promoted to gravity valveless filtered water reservoir through intermediate pool pump is filtered processing, water outlet adds disinfectant and carries out disinfection processing into reuse pool；Sludge after separation of solid and liquid is discharged into sludge concentration tank, PAM is added and carries out flocculation sedimentation, supernatant is back to conditioning tank, sludge is drawn into filter press through sludge pump and is dehydrated, dry mud outward transport.The present invention uses coagulation, precipitating, the treatment process of filtering, can be effectively reduced turbidity in waste water of mine, hardness and coloration.
Description
Technical field
The present invention relates to technical field of sewage more particularly to a kind for the treatment of process of Mine System.
Background technique
Coal resources in China is abundant, and annual output occupies first of the world, and in progress of coal mining, underground water connects with coal seam, rock stratum
Touching has occurred a series of physics, chemistry and biochemical reaction and penetrates into the tunnel in and generate greatly in addition the movable influence of the mankind
The Mine System of amount need to discharge it to keep the safety in production.
The water quality of Mine System have significant coal industry feature: due to a large amount of coal dusts, rock dust, artificial pollution and
Microorganism enters in water, and ss suspended solid content is significantly larger than surface water in mine water, and sensory properties is poor, and contained suspended matter
Granularity is small, light specific gravity, sinking speed is slow, coagulation effect is poor；Also containing organic pollutions such as used oil, oil emulsions in mine water
Object.The hardness of mine water is higher, and the total ion concentration contained in water is more much higher than general surface water, and is greatly sulphur
Acid ion, water quality meta-alkalescence.In addition, containing a certain amount of COD in general mine watercr, mainly as caused by coal dust, by
In water caused by reproducibility carbon, generally with the removal COD of suspended mattercrIt can remove therewith.Therefore, the improvement of Mine System
Mainly remove SS, hardness and organic matter etc..The object of the invention is to develop a kind of technique for being capable of handling Mine System,
New technology is provided for the processing of coal mining regional waste-water.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind for the treatment of process of Mine System, using mixed
Solidifying, precipitating, the combined treatment process filtered, can be effectively reduced turbidity in waste water, SS and hardness, reach recycle water standard.
A kind for the treatment of process of Mine System proposed by the present invention, comprising the following steps:
(1) Mine System enters the adjusting that conditioning tank carries out water and water quality；
(2) the boosted pump of Mine System after adjusting is lifted into mixed flocculation reaction deposition device, and sodium hydroxide is added and adjusts
Then the pH of Mine System is added milk of lime using lime softening method and carries out hard-off processing, adds PAC and PAM flocculates
Precipitation process is finally separated by solid-liquid separation；
(3) supernatant after separation of solid and liquid is promoted to the high water tank of gravity valveless filtered water reservoir through intermediate pool pump
It is filtered processing, water outlet enters reuse pool, adds disinfectant and carries out disinfection processing；
(4) sludge after separation of solid and liquid is discharged into sludge concentration tank, PAM is added and carries out flocculation sedimentation, supernatant is flowed back
To conditioning tank, sludge is drawn into filter press through sludge pump and is dehydrated, dry mud outward transport.
Preferably, in step (2), the pH to 10-10.5 of Mine System is adjusted using sodium hydroxide.
Preferably, in step (2), the dosage of PAC is 20mg/L, and the dosage of PAM is 1mg/L.
Preferably, in step (4), using chamber-type press filter.
The utility model has the advantages that the present invention uses physico-chemical process, i.e., using coagulation, precipitating, the treatment process of filtering to mine
Sewage is handled.Since hydrolysis can occur for coagulant dosage, the pH of waste water is reduced, so that coagulation effect is influenced, therefore,
NaOH and milk of lime are first put into the stage of reaction, while removing hardness, turbidity and suspended matter, improves the basicity in water, so
After add PAC and PAM and carry out flocculation sedimentation, and milk of lime also has effect of flocculant, so that coagulation effect is more preferable；Through coagulation
After waste water after precipitating is filtered through gravity valveless again, turbidity, SS and hardness are greatly lowered, and reach recycle-water requirement.
Detailed description of the invention
Fig. 1 is the flow chart of the treatment process of Mine System proposed by the present invention.
Specific embodiment
Referring to Fig.1, the flow chart of the treatment process of Mine System proposed by the present invention.
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
The treating mine drainage engineering that generates when Shanxi mine produces, influent quality are as follows: pH value 7~9, COD150mg/L,
SS 1500mg/L, sulfate 837mg/L, phosphate 1.89mg/L, iron ion 1.73mg/L, total hardness 760mg/L.The mine
Sewage total hardness is larger, and suspended matter is excessively high, and ferric ion, sulfate and phosphate are exceeded, belongs to and pollutes more serious dirt
Water.
For the sulfuric acid salt treatment problem of the project, my company's research is pre- to select coagulant sedimentation to make a return journey removing sulfate, hard
Degree and SS.Specific step is as follows:
(1) Mine System enters the adjusting that conditioning tank carries out water and water quality；
(2) the boosted pump of Mine System after adjusting is lifted into mixed flocculation reaction deposition device, and sodium hydroxide is added and adjusts
Then the pH to 10-10.5 of Mine System is added milk of lime using lime softening method and carries out hard-off processing, adds PAC and PAM
Flocculation sedimentation processing is carried out, the dosage of PAC is 20mg/L, and the dosage of PAM is 1mg/L, is finally separated by solid-liquid separation；
In the step, the PAC added is a kind of inorganic coagulant, and molecular formula is [Al2(OH)nCl6-n·H2O], mainly
The mechanisms such as catch by compression double electric layer, absorption charge neutrality, adsorption bridging, sediment net, make fine suspension in water and
Elimination of colloid stability, flocculation, coagulation, precipitating, reach clean-up effect.Due to Al3+Radius than other cations is small, and surface charge amount
Height, therefore its superficial density is big.In order to reduce this trend, it is often and SO4 2-、Cl-、OH-Equal anion be complexed to be formed it is various
Complicated complex compound.
After mixing with pulverized limestone, have the function of removing salt.Cardinal principle are as follows: sulfate radical belongs to dissolubility object in water
Matter, white lime, which is added, can be changed into microsolubility substance, then can become big glue by suction-operated by the way that flocculant is added
Body group's precipitating, to achieve the purpose that sulfate radical.Cardinal principle is as follows:
Ca(OH)2+2HCO3==CaCO3↓+CO3 2-+2H2O
Ca(HCO3)2+Ca(OH)2==2CaCO3↓+2H2O
Mg(HCO3)2+Ca(OH)2==CaCO3↓+MgCO3+2H2O
By above-mentioned reaction equation it is found that suitable add white lime, waste water can be made to be softened；And because of coagulant dosage meeting
Hydrolysis is generated, the pH in water is reduced, so that coagulation effect is influenced, so NaOH and milk of lime are first added, in removal hardness
While turbidity SS, the basicity in water is improved, so that coagulation effect is more preferable.
(3) supernatant after separation of solid and liquid is promoted to the high water tank of gravity valveless filtered water reservoir through intermediate pool pump
It is filtered processing, water outlet enters reuse pool, adds disinfectant and carries out disinfection processing；Wherein, setting adds at intermediate pool
Enter sulfuric acid, water pH is adjusted to final drainage requirement value 6-9；
(4) sludge after separation of solid and liquid is discharged into sludge concentration tank, PAM is added and carries out flocculation sedimentation, supernatant is flowed back
To conditioning tank, sludge is drawn into chamber-type press filter through sludge pump and is dehydrated, dry mud outward transport.
The water outlet of waste water of mine after processing reaches following Effluent criteria: pH value 6.5~9, COD50mg/L, SS
30mg/L, sulfate 250mg/L, phosphate 1.0mg/L, iron ion 0.3mg/L, total hardness 450mg/L.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind for the treatment of process of Mine System, which comprises the following steps:
(1) Mine System enters the adjusting that conditioning tank carries out water and water quality；
(2) the boosted pump of Mine System after adjusting is lifted into mixed flocculation reaction deposition device, and sodium hydroxide is added and adjusts mine
Then the pH of sewage is added milk of lime using lime softening method and carries out hard-off processing, adds PAC and PAM and carry out flocculation sedimentation
Processing, is finally separated by solid-liquid separation；
(3) supernatant after separation of solid and liquid is carried out through intermediate pool with the high water tank that pump is promoted to gravity valveless filtered water reservoir
Filtration treatment, water outlet enter reuse pool, add disinfectant and carry out disinfection processing；
(4) sludge after separation of solid and liquid is discharged into sludge concentration tank, PAM is added and carries out flocculation sedimentation, supernatant is back to tune
Pond is saved, sludge is drawn into filter press through sludge pump and is dehydrated, dry mud outward transport.
2. the treatment process of Mine System according to claim 1, which is characterized in that in step (2), using sodium hydroxide
Adjust the pH to 10-10.5 of Mine System.
3. the treatment process of Mine System according to claim 1 or 2, which is characterized in that in step (2), PAC's is added
Amount is 20mg/L, and the dosage of PAM is 1mg/L.
4. the treatment process of Mine System according to claim 1-3, which is characterized in that in step (4), use
Chamber-type press filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797844.6A CN110467288A (en) | 2019-08-27 | 2019-08-27 | A kind for the treatment of process of Mine System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797844.6A CN110467288A (en) | 2019-08-27 | 2019-08-27 | A kind for the treatment of process of Mine System |
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| Publication Number | Publication Date |
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| CN110467288A true CN110467288A (en) | 2019-11-19 |
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| CN201910797844.6A Pending CN110467288A (en) | 2019-08-27 | 2019-08-27 | A kind for the treatment of process of Mine System |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950461A (en) * | 2019-12-19 | 2020-04-03 | 黑龙江龙煤双鸭山矿业有限责任公司 | System and method for treating high-concentration suspended matter mine sewage |
| CN111115898A (en) * | 2019-12-31 | 2020-05-08 | 深圳市华域环保科技有限公司 | Sewage circulating system |
| CN112239252A (en) * | 2019-12-31 | 2021-01-19 | 中煤（北京）环保工程有限公司 | High-hardness mine water pretreatment method and system |
| CN112479502A (en) * | 2020-12-01 | 2021-03-12 | 贵州盘江精煤股份有限公司 | Device and method for deep purification treatment and reuse of mine water for production |
| CN114455737A (en) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | High-hardness oilfield produced water sewage softening treatment system and treatment method |
| CN115583741A (en) * | 2022-09-14 | 2023-01-10 | 中赟国际工程有限公司 | Method for treating low-salt high-suspended matter mine water to reach earth surface III-class standard |
| CN117592823A (en) * | 2024-01-19 | 2024-02-23 | 天津路联智通交通科技有限公司 | Civil construction sewage treatment method and system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950461A (en) * | 2019-12-19 | 2020-04-03 | 黑龙江龙煤双鸭山矿业有限责任公司 | System and method for treating high-concentration suspended matter mine sewage |
| CN110950461B (en) * | 2019-12-19 | 2022-05-17 | 黑龙江龙煤双鸭山矿业有限责任公司 | System and method for treating high-concentration suspended matter mine sewage |
| CN111115898A (en) * | 2019-12-31 | 2020-05-08 | 深圳市华域环保科技有限公司 | Sewage circulating system |
| CN112239252A (en) * | 2019-12-31 | 2021-01-19 | 中煤（北京）环保工程有限公司 | High-hardness mine water pretreatment method and system |
| CN114455737A (en) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | High-hardness oilfield produced water sewage softening treatment system and treatment method |
| CN112479502A (en) * | 2020-12-01 | 2021-03-12 | 贵州盘江精煤股份有限公司 | Device and method for deep purification treatment and reuse of mine water for production |
| CN115583741A (en) * | 2022-09-14 | 2023-01-10 | 中赟国际工程有限公司 | Method for treating low-salt high-suspended matter mine water to reach earth surface III-class standard |
| CN117592823A (en) * | 2024-01-19 | 2024-02-23 | 天津路联智通交通科技有限公司 | Civil construction sewage treatment method and system |
| CN117592823B (en) * | 2024-01-19 | 2024-03-29 | 天津路联智通交通科技有限公司 | Civil construction sewage treatment method and system |
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Application publication date: 20191119 |