CN101565247A - Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage - Google Patents
Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage Download PDFInfo
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- CN101565247A CN101565247A CNA2008100111827A CN200810011182A CN101565247A CN 101565247 A CN101565247 A CN 101565247A CN A2008100111827 A CNA2008100111827 A CN A2008100111827A CN 200810011182 A CN200810011182 A CN 200810011182A CN 101565247 A CN101565247 A CN 101565247A
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Abstract
The invention relates to a zero-discharge purifying treatment method for mine wastewater and mine domestic sewage. The method adopts the technical scheme that after the sewage passes through a grid, the supernatant enters in an equalizing tank; the sewage after pretreatment enters in a lifting pump sump for a purifier, when the sewage water level in the lifting pump sump for the purifier is raised to the upper limit water level, a composite water treatment agent in a chemical feeder and the sewage simultaneously pass through a lifting pump impeller and a pipeline mixer and then enter in a nanofihration circulating purifier after being sufficiently mixed, the sewage and the composite water treatment agent rapidly form a flocculation cake layer in the nanofihration circulating purifier and the sewage is filtered through the flocculation cake layer; the filtrate enters in a high-efficiency denitriding purifier through an intermediate pool and stays for 2-4 h; the sewage after secondary treatment enters in a strong-carbon adsorption purifier for purification; the purified water enters in a water purifying tank and a disinfectant is added. The invention has the advantages that the cost is low, and the water quality after treatment can meet the standard of the regenerated recycle-water.
Description
Technical field:
The present invention relates to a kind of sewage water treatment method, particularly a kind of method of carrying out sewage disposal through three grades of physico-chemical process.
Background technology:
At present, discharging to waste water of mine and mine sanitary sewage, mostly adopt biochemical reaction to handle, the shortcoming that exists is: need large-area biological reaction tank and settling tank, floor space is big, and construction investment is big, building time is long, water quality after the processing does not reach regeneration water quality standard, and mud is difficult for dehydration, pollutes to environment.In that nowadays land resources is fewer and feweri, under the Freshwater resources condition in short supply, how to make full use of sewage, the standard that reaches regenerated recycle-water is after treatment more and more received people's attention.
Summary of the invention:
In order to address the above problem, it is low to the invention provides a kind of construction cost, and water quality after treatment can reach the waste water of mine and the mine sanitary sewage Zero-discharge purifying treatment method of regeneration water quality standard.To achieve these goals, the technical solution used in the present invention is: a kind of waste water of mine and mine sanitary sewage Zero-discharge purifying treatment method, and processing step is as follows:
1) pre-treatment: sewage is behind grid, and supernatant liquor enters equalizing tank, stops 2～4 hours;
2) one-level is handled: in pretreated sewage enters cleaner lift pump pond, when wastewater level rises to upper limit water level in the cleaner lift pump pond, combined type water conditioner in the chemicals feeder and sewage are simultaneously through lift pump impeller and line mixer, enter behind the thorough mixing in the nanofiltration circulation purifier, sewage and combined type water conditioner form flocculation cake layer fast in the nanofiltration circulation purifier, sewage filters by flocculation cake layer;
3) second-stage treatment: filtrate enters in the high-efficiency denitriding purifier through intermediate pool, stops 2～4 hours, and the efficient denitrification material is arranged in the high-efficiency denitriding purifier;
4) tertiary treatment: the sewage after second-stage treatment enters strong carbon adsorption cleaning device and purifies, and the ACF carbon fibre material is housed, mean pore size 2nm in the strong carbon adsorption cleaning device;
5) sterilization: the water through purifying enters in the water purifying tank, adds sterilizing agent.
The combined type sewage-treating agent adopts commercial product, and this treatment agent is to be that the multiple material optimum formula such as chemical agent, flocculation agent, sterilizing agent of the main raw and the some amount that is mixed combines by the natural nano microporous adsorbent material.By chemical reaction organic pollutant, heavy metal ion and the deleterious salt of dissolved state in the sewage are separated out from water, become the molecule that solid phase interface is arranged.The natural nano microporous adsorbent material is adsorbed with organic pollutants and colourity as sorbent material.Sterilizing agent is kill bacteria and colibacillus in 30-50 minute, by the physical and chemical adsorption effect of flocculation suspended substance is flocculated into big and closely knit floc sedimentation with all kinds of impurity.
Principle of work of the present invention is:
1, one-level is handled: combined type water conditioner and sewage are simultaneously through lift pump impeller and line mixer, enter behind the thorough mixing in the nanofiltration circulation purifier, pollutent is finished fully with the combined type water conditioner and is mixed in the sewage, produces flocculation fast by chemical flocculation power and nanometer micropore adsorptive power.Form the flocculation cake layer of 300-1000mm thickness, when this flocculation cake layer is passed in the water outlet after the flocculation from bottom to top, effect by surface physics absorption and electrochemical properties and Van der Waals force, suspensoid particle, flco, bacterium thalline etc. are all tackled on this suspension cake layer, made effluent quality obtain deep purifying.After one-level was handled, the clearance of each pollutant was COD:80～95%; BOD:80～90%; SS:85～99%; TP:90～98%; TN:30～50%; NH
3-N:30～50%.
2, second-stage treatment:
Filtrate after one-level is handled enters in the high-efficiency denitriding purifier through middle pond, through absorption and ion-exchange dual function, makes TN, NH by efficient denitrification material WK-10
3Pollutents such as-N are purified by the adsorption of ion exchange and nanometer level microporous material.After second-stage treatment, not only total nitrogen and ammonia nitrogen there are very high clearance, and higher removal are all arranged for suspended substance, heavy metal ion, turbidity etc.
Efficient denitrification material WK-10 is commercial product, and this product is to be raw material with the aluminosilicate material, processes through fragmentation, screening, high temperature sintering, activation etc., and particle diameter is 0.5-1.8mm, and bulk specific gravity is 0.9-1.0, and color and luster is a deep green.There are many passages and hole in branch on the WK-10 structure screen work, and the aperture has only 0.5-1.6nm, and specific surface area can reach 500-800m
2/ g, thereby adsorbable fluorine, molybdenum lattice-like tetrahedron, aluminium and silicon exchange, the aluminium trivalent, the silicon tetravalence lacks an electric charge, has the M (sodium, potassium one are to trivalent ion) of material self to replenish usually.Because combination is very weak during M auxiliary point position, so when water contacted with WK, the R in the water (iron, manganese, calcium, magnesium, ammonia nitrogen etc. are to trivalent ion) had replaced M, thereby reaches the water purification purpose, and material structure does not destroy.After absorption, exchange are saturated, adopt the desorption method wash-out, recover original function, can use repeatedly, lasting.
3, tertiary treatment:
Directly enter strong carbon adsorption cleaning device through the water of second-stage treatment and purify, in the strong carbon adsorption cleaning device ACF carbon fibre material is housed.Strong charcoal adsorption cleaning device is to utilize intensive nanometer micropore structure that the ACF carbon fibre material had and huge specific surface area (1250m
2/ g), and be combined into the floc sedimentation of chemical bond with adsorbed molecules, make it have physical adsorption and chemisorption.Make water quality evenly enter the decontamination chamber through even plate.Under the effect of intake pressure, enter interior pipe by core tube wall, make each pollutant adsorbed by the nanometer micropore material.Pollutent is trapped within core tube-surface and the ACF micropore, and water purification pipe in the core pipe flows into water purifying tank by water shoot after entering the decontamination chamber.
The invention has the beneficial effects as follows:
1, the filteration of flocculation cake layer: because when one-level is handled, in the nanofiltration circulation purifier, form flocculation cake layer, and the water outlet behind the coagulation must be through the filtration of this flocculation cake layer, just can flow in the settling tank, its success has played senior filteration very important in the sewage treatment process like this.This flocculation cake layer has following characteristics: (1) is made up of flco owing to mud layer, the density height, and therefore, filter effect is higher than conventional sand grains layer and filters; (2) be in the flocculation cake layer of suspended state, include a large amount of poromerics, good water permeability, drag losses is very little, filters so power consumption is lower than layer of sand; (3) the filter cake layer of this device is to replenish automatically to add in scavenging process, automatically by carrying-off, be that the filter cake layer is constantly upgrading automatically, the filter cake layer is always keeping stable thickness and quality, thereby guarantee stable physical adsorption and electrochemistry absorption property, obtain stable filter effect, and removed requisite numerous troubles that back flushing is brought to filtering layer in the conventional system fully from.
Constantly increase with rate of water added, flocculation cake layer thickens, increases, when cake layer top is higher than mud tank deck mouth, at the bottom of the raised area just flows into and is sunken in the mud tank jar,, slush pump is opened by automatic control when being increased to when a certain amount of, concentrated solution in the mud tank is drained into outside concentration basin, concentrate once more.Enriched material precipitation, supernatant liquor are last, and when supernatant liquor reached the liquid level switch upper limit, the supernatant liquid pump was opened automatically in the concentration basin, supernatant liquor is drained into equalizing tank, repetitive decontamination.When supernatant liquor dropped to the liquid level switch lower limit, the supernatant liquid pump made concentrate pump open when cutting out, enriched material is drained into mummifying pool, was used as greening fertilizer again after mummification, fermentative processing.
2, processing speed is fast, and is all very high for every pollutants removal rate.Sewage only needed just can handle step by step by three grades of physico-chemical process in 40-50 minute through after the pre-treatment, reached regeneration water quality standard.Do not need large-area biological reaction tank and settling tank, reduce construction investment, save land resources, can reduce floor space more than 2/3rds, construction investment is low;
3, do not need aeration.Treatment process easily is automated based on equipment, opens automatically, stops according to the water yield.Can reduce by 1/3rd power consumption and working cost, can reduce a large amount of managerial personnel again;
4, temperature influence restriction very little (0-45 ℃ all can normally be moved) is easy to management, and physico-chemical process is fit to northern area and uses very much;
5, mud is easy to processed.Composite water disposal agent includes the nanometer micropore material, does not need to add in addition flocculating aids, handles the back recrement and can be used as the floor tile filler or make greening fertilizer after simple fermentative processing;
6, the process system adjustability is strong.Can be according to the sewage water yield, water quality requirement by adjusting water conditioner, instrument size, filtering adsorbing material, reaches the water quality treatment requirement.
Physico-chemical process of the present invention and the biochemical process regeneration performance of disposing of sewage relatively sees Table 1.
Table 1 biochemical process and the present invention dispose of sewage and the reuse technology performance compares
(10000t/d sanitary sewage disposal factory is an example)
Embodiment:
To handle 1200M
3The big flat colliery of/d waste-water from coal mine is example explanation the present invention.
Waste water of mine and mine sanitary sewage Zero-discharge purifying treatment method.Its processing step is as follows:
1) pre-treatment: enter sewage work from the effusive sewage of septic tank, behind grid, foreign material such as floating matter that will be bigger and silt particle are separated, supernatant liquor enters equalizing tank, and equalizing tank adopts skeleton construction, stops 2～4 hours, after mix, regulating clarification, enter cleaner lift pump pond;
Flase floor is the PVC plate, and the aperture is 5mm.
2) one-level is handled: in pretreated sewage enters cleaner lift pump pond, the reinforced concrete structure is adopted in cleaner lift pump pond, when wastewater level rises to upper limit water level in the cleaner lift pump pond, combined type water conditioner (commercial) in the chemicals feeder and sewage are simultaneously through lift pump impeller and line mixer, enter behind the thorough mixing in the nanofiltration circulation purifier (commercial LBL nanofiltration circulation purifier), sewage and combined type water conditioner form flocculation cake layer fast in the nanofiltration circulation purifier, sewage filters by flocculation cake layer;
3) second-stage treatment: filtrate enters in the high-efficiency denitriding purifier (commercial LBL-W-10 high-efficiency denitriding purifier, three compose in parallel) through intermediate pool, stops 2～4 hours, and the efficient denitrification material is arranged in the high-efficiency denitriding purifier;
4) tertiary treatment: the sewage after second-stage treatment enters strong carbon adsorption cleaning device (the strong carbon adsorption cleaning of commercial LBL device, three parallel connections) and purifies, and the ACF carbon fibre material is housed, mean pore size 2nm in the strong carbon adsorption cleaning device;
5) sterilization: the water through purifying enters in the water purifying tank, adds sterilizing agent, finishes sewage purification.
After the present invention handled, effluent quality all reached " GB18918-2002 " one-level A standard.Sewage is carried out deep purifying step by step, and clearance is very high, and effluent SS is almost nil, and COD is 20-30mg/L, NH
3-N is less than 3mg/L, and colourity is very good, and is as clear as crystal, free from extraneous odour.
Its water outlet has been used for part boiler feed water, mining water use, green area irrigation etc., has alleviated Freshwater resources difficulty in short supply greatly.
Floor space only is 216M
2, save a large amount of land resourcess (about 2/3rds); Be not subjected to temperature limitation, water temperature in winter is 1-15 ℃ of still operation as usual.Sewage Plant noiseless, no stink pollute, beautiful environment.Treatment process does not need aeration, does not need continuous transmission operation, and power consumption is low; And because processing unitization easily is automated, and operator only use 2 people, working cost is low.Contain a certain amount of poromerics in the concentrated solution, be easy to dehydration, need not add coagulant aids, dried slag can be made greening fertilizer after simple fermentative processing.
Claims (1)
1, a kind of waste water of mine and mine sanitary sewage Zero-discharge purifying treatment method, it is characterized in that: processing step is as follows:
1) pre-treatment: sewage is behind grid, and supernatant liquor enters equalizing tank, stops 2～4 hours;
2) one-level is handled: in pretreated sewage enters cleaner lift pump pond, when wastewater level rises to upper limit water level in the cleaner lift pump pond, combined type water conditioner in the chemicals feeder and sewage are simultaneously through lift pump impeller and line mixer, enter behind the thorough mixing in the nanofiltration circulation purifier, sewage and combined type water conditioner form flocculation cake layer fast in the nanofiltration circulation purifier, sewage filters by flocculation cake layer;
3) second-stage treatment: filtrate enters in the high-efficiency denitriding purifier through intermediate pool, stops 2～4 hours, and the efficient denitrification material is arranged in the high-efficiency denitriding purifier;
4) tertiary treatment: the sewage after second-stage treatment enters strong carbon adsorption cleaning device and purifies, and the ACF carbon fibre material is housed, mean pore size 2nm in the strong carbon adsorption cleaning device;
5) sterilization: the water through purifying enters in the water purifying tank, adds sterilizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100111827A CN101565247A (en) | 2008-04-25 | 2008-04-25 | Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage |
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|---|---|---|---|
| CNA2008100111827A CN101565247A (en) | 2008-04-25 | 2008-04-25 | Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805084A (en) * | 2010-03-29 | 2010-08-18 | 中钢集团马鞍山矿山研究院有限公司 | Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd |
| CN102101731A (en) * | 2011-01-14 | 2011-06-22 | 韶关市雅鲁环保实业有限公司 | Mine wastewater treatment device and treatment method thereof |
| CN102229450A (en) * | 2010-07-09 | 2011-11-02 | 鞍钢集团矿业公司 | Integrated membrane purification technology for treating hematite dressing wastewater |
| CN102701534A (en) * | 2012-06-25 | 2012-10-03 | 西安科技大学 | Ecological treatment method for acid mine water of coal mine |
| CN102886251A (en) * | 2012-10-29 | 2013-01-23 | 国家地质实验测试中心 | Preparation method of filtering material with removal effect on heavy metals in water and soil |
| CN103204593A (en) * | 2013-04-24 | 2013-07-17 | 刘千胜 | Device for performing fast and effective separation and purification on turbid circulating water of steel rolling |
| CN104310654A (en) * | 2014-11-02 | 2015-01-28 | 刘四 | Domestic wastewater purification method based on Fenton oxidization |
| CN108178226A (en) * | 2017-12-28 | 2018-06-19 | 卢勇军 | A kind of acidic industrial waste water treatment system |
| CN109607634A (en) * | 2018-12-27 | 2019-04-12 | 连云港连鑫玻璃钢有限公司 | Integrated glass fiber reinforced plastic pretreatment system for sewage and its technique |
| CN109970264A (en) * | 2019-03-08 | 2019-07-05 | 中核通辽铀业有限责任公司 | A kind of In-situ Leaching Uranium Mine evaporation tank odorant pollutant control method |
| CN112723599A (en) * | 2020-12-18 | 2021-04-30 | 爱土工程环境科技有限公司 | Deep bed ion reaction mine wastewater treatment method |
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2008
- 2008-04-25 CN CNA2008100111827A patent/CN101565247A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805084A (en) * | 2010-03-29 | 2010-08-18 | 中钢集团马鞍山矿山研究院有限公司 | Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd |
| CN101805084B (en) * | 2010-03-29 | 2012-05-30 | 中钢集团马鞍山矿山研究院有限公司 | Treatment process of mine wastewater containing sulfur minerals, As, Pb and Cd |
| CN102229450A (en) * | 2010-07-09 | 2011-11-02 | 鞍钢集团矿业公司 | Integrated membrane purification technology for treating hematite dressing wastewater |
| CN102101731A (en) * | 2011-01-14 | 2011-06-22 | 韶关市雅鲁环保实业有限公司 | Mine wastewater treatment device and treatment method thereof |
| CN102101731B (en) * | 2011-01-14 | 2012-05-30 | 韶关市雅鲁环保实业有限公司 | Mine wastewater treatment device and treatment method thereof |
| CN102701534A (en) * | 2012-06-25 | 2012-10-03 | 西安科技大学 | Ecological treatment method for acid mine water of coal mine |
| CN102886251A (en) * | 2012-10-29 | 2013-01-23 | 国家地质实验测试中心 | Preparation method of filtering material with removal effect on heavy metals in water and soil |
| CN103204593A (en) * | 2013-04-24 | 2013-07-17 | 刘千胜 | Device for performing fast and effective separation and purification on turbid circulating water of steel rolling |
| CN104310654A (en) * | 2014-11-02 | 2015-01-28 | 刘四 | Domestic wastewater purification method based on Fenton oxidization |
| CN108178226A (en) * | 2017-12-28 | 2018-06-19 | 卢勇军 | A kind of acidic industrial waste water treatment system |
| CN108178226B (en) * | 2017-12-28 | 2021-09-10 | 广西翰绿环保科技有限公司 | Acid industrial wastewater treatment system |
| CN109607634A (en) * | 2018-12-27 | 2019-04-12 | 连云港连鑫玻璃钢有限公司 | Integrated glass fiber reinforced plastic pretreatment system for sewage and its technique |
| CN109970264A (en) * | 2019-03-08 | 2019-07-05 | 中核通辽铀业有限责任公司 | A kind of In-situ Leaching Uranium Mine evaporation tank odorant pollutant control method |
| CN109970264B (en) * | 2019-03-08 | 2021-09-17 | 中核通辽铀业有限责任公司 | Method for controlling malodorous pollutants in evaporation pond of in-situ leaching uranium mining mine |
| CN112723599A (en) * | 2020-12-18 | 2021-04-30 | 爱土工程环境科技有限公司 | Deep bed ion reaction mine wastewater treatment method |
| CN112723599B (en) * | 2020-12-18 | 2021-10-29 | 爱土工程环境科技有限公司 | Deep bed ion reaction mine wastewater treatment method |
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Open date: 20091028 |