CN101182058A - Method for preparing coal mine water additive by concomitancy of diatomite purification - Google Patents
Method for preparing coal mine water additive by concomitancy of diatomite purification Download PDFInfo
- Publication number
- CN101182058A CN101182058A CNA2007100663635A CN200710066363A CN101182058A CN 101182058 A CN101182058 A CN 101182058A CN A2007100663635 A CNA2007100663635 A CN A2007100663635A CN 200710066363 A CN200710066363 A CN 200710066363A CN 101182058 A CN101182058 A CN 101182058A
- Authority
- CN
- China
- Prior art keywords
- diatomite
- water
- treatment agent
- solution
- coal
- 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.)
- Pending
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A method of using biology in the diatomite purification to prepare coal washing water of coal mine and mine water treatment agent relates to the preparation and the application of coal washing water and mine water treatment agent. Low grade diatomite in associated SiO2 in a pickling essential diatom earth purifying process is used by the invention to be immersed in distilled water, filtered and dried until the water content is less than 5%. P123, sodium metaphosphate, cetyl trimethyl ammonium bromide and tetramethylammonium bromide are dissolved and prepared to be solution, the weight percent concentration of which is 2.5-5. The pH value is regulated to be 8-11. The weight ratio of the diatomite to the solution is 1 to 10-1 to 30. The solution is stirred and filtered to obtain a filter cake, which is dried to collect a resultant. And the weight percent concentration of P123 in the solution is better 2.5. When used, the treatment agent of 0.1-0.3g/L is put in the coal washing water or the mine water to be stirred for thirty seconds and kept statically. Supernatant liquid is siphoned. Diatomite coal sludge of lower layer is recycled. The invention has the advantages of short flocculation time and less energy consumption. The suspended substance sedimentation rate and the COD removal rate are improved. Fallouts are easy to be removed. And the objectives of recycling the mine water and coal water and reducing the environmental pollutions are achieved.
Description
Affiliated technical field
The present invention relates to the preparation and the application of the water conditioner of colliery coal washing water and pit water.
Background technology
Produce super-cell or material of construction, need purify diatomite original ore and be diatomite, purifying technique is to cook off except that elements such as the aluminium in the diatomite, iron, calcium, magnesium with sulfuric acid acid, the a large amount of dioxide-containing silicas of association be about 60% in low-grade diatomite, form water-fast jelly alluvial in the mining area, physical environment has been constituted huge potential threat.As being positioned at the diatomite in Xun Dianxian pioneer township, Yunnan Province, ore bed is thick, geologic reserve reaches 7,759 ten thousand tons.Mining area diatomite ore bed directly is covered on the huge thick brown coal layer, is rich in organic matter, burns vector and reaches 15%～24%, ore shows brown-black, the fine and smooth homogeneous of quality, loose porous, hardness is little, unit weight is light, adsorptivity is strong, and specific surface area is big, and thermal value is 3.3～5.7MJ/kg, height contains aluminium, iron amount, is high fever vector type diatomite.And another problem that the colliery is faced is, reclaim coal mine water and coal washing water circulation use, save energy consumption to pick up the neglected and to supply the deficient, but there are many cinders, coal gangue, sandstone, the difficult settled suspended substance of coal ash in coal mine water and the coal washing water, also contain the sulfur-bearing that is insoluble in water in a large number, carbonaceous organic pollutant in the coal washing water.Generally use polymerize aluminum chloride and polyacrylamide to be flocculation agent at present, flocculation sediment time length, wadding are spent loose, disperse easily when rocking, and form suspended substance easily once more, and cost an arm and a leg.The Chinese invention patent application number is that 86106871 " diatomite is handled papermaking organic waste water " are that 600-800 ℃ of calcining of diatomite original ore powder activated by sulfuric acid after 2-3 hour, with the activated soil processing waste water that keeps certain residual acid amount.But this method adopts the raw ore calcining, and the time is long, the heat dissipation height.Application for a patent for invention number is to add the treatment agent of this treatment agent with the acquisition of modification infusorial earths such as polymer aluminium silicate, polyaluminium sulfate, ferrous sulfate after 021530769 " handling the method and the diatomite sewage-treating agent thereof of non-ferrous metal metallurgy waste water with diatomite " proposes smelting wastewater is adjusted to pH value 8-9, wherein, diatomite and properties-correcting agent ratio are 8: 2-5: 5.This treatment agent cost height, and can not form Industrial products.
Summary of the invention
The present invention seeks to shortcoming, utilize the Purification of Diatomite intermediate product to prepare colliery coal washing water and pit water treatment agent, for Sustainable Development in Mining Areas provides approach at flocculation agent.
Treatment agent of the present invention prepares by following approach:
Comprise sulfuric acid washing purify to burn vector be in 15%～24% the diatomite process dioxide-containing silica of association be 50-60% in low-grade diatomite, the steps include:
(1) one or more of P123 and sodium-metaphosphate or cetyl trimethylammonium bromide or 4 bromide are dissolved in the water, are made into concentration expressed in percentage by weight and are 2.5～5 rare-earth ion solution, regulating this pH value of solution with sodium hydroxide is 8～11;
(2) diatomite was soaked in distilled water 15～30 minutes, filter the back under 80 ℃～120 ℃ temperature, dry to water content less than 5%;
(3) pressed diatomite and solution solid-liquid weight ratio 1: 10～1: 30, stir in the solution that the diatomite adding step (1) that step (2) is obtained prepares, leave standstill 15～20 hours after-filtration of dipping and obtain filter cake, filter cake being placed temperature is that 60～100 ℃ of baking ovens are dried again, collect resultant, pulverize, sieve;
Above-mentioned P123 is polyvinyl ether-polypropylene ether-polyvinyl ether triblock copolymer PEO-PPO-PEO.
Described step (1) can further be in the rare-earth ion solution of this treatment agent the P123 weight percent concentration greater than 2.5.
The using method of treatment agent of the present invention:
This treatment agent is added in coal washing water or the pit water with 0.3～0.5g/L, evenly stirred 30 seconds, leave standstill 10 minutes after, the siphon supernatant liquid reclaims lower floor's diatomite coal slime.
The present invention's sodium-metaphosphate, sodium hydroxide, cetyl trimethylammonium bromide, 4 bromide, the solution of P123 allotment, utilize the middle soil behind the purification diatomite, tail soil joins in this solution by certain solid-to-liquid ratio, form colliery coal washing water and pit water treatment agent on the diatomite support through being doped in securely after the modification, flocculation time is short, the adsorption efficiency height, power consumption is few, yet, compare with existing flocculation agent, suspended substance and water body COD clearance in sedimentation colliery coal washing water and the pit water have obviously been improved, sedimentation mud is more closely knit, remove easily, coal mine water that reclaims and coal washing water can recycles, substantially realized the saving water resources, reduce production costs, alleviate the purpose of environmental pollution.
Embodiment
(1) preparation method of the present invention
Embodiment 1: 0.5wt% cetyl trimethylammonium bromide, 2.0wt%P123 are dissolved in the water, are made into rare-earth ion solution, regulating this pH value of solution with sodium hydroxide is 8; With the dioxide-containing silica of association in the purification diatomite process be 60% in low-grade diatomite be immersed in the distilled water 20 minutes, filter the back and under 100 ℃ of temperature, dry to water content 3%; This diatomite adds in the above-mentioned rare-earth ion solution for preparing according to 1: 15 solid-liquid weight ratio, and normal temperature stirred 45 minutes down, left standstill dipping 15 hours, and solution is filtered, and obtained filter cake and filtrate; It is that 70 ℃ of baking ovens are dried that filter cake is placed temperature, pulverizes, and screening obtains diatomite coal washing water and pit water treatment agent.
Embodiment 2: 0.5wt% sodium-metaphosphate, 0.5wt% 4 bromide, 2.5wt%P123 are dissolved in the water, are made into rare-earth ion solution, regulating this pH value of solution with sodium hydroxide is 10; With the dioxide-containing silica of association in the purification diatomite process be 50% in low-grade diatomite be immersed in the distilled water 30 minutes, filter the back and under 130 ℃ of temperature, dry to water content 2%; This diatomite adds in the above-mentioned rare-earth ion solution for preparing according to 1: 20 solid-liquid weight ratio, and normal temperature stirred 60 minutes down, left standstill dipping 15～20 hours, and solution is filtered, and obtained filter cake and filtrate; It is that 100 ℃ of baking ovens are dried that filter cake is placed temperature, pulverizes, and screening obtains diatomite coal washing water and pit water treatment agent.
Embodiment 3: 1.0wt% sodium-metaphosphate, 0.5wt% cetyl trimethylammonium bromide, 3.5wt%P123 are dissolved in the water, are made into rare-earth ion solution, regulating this pH value of solution with sodium hydroxide is 9; With the dioxide-containing silica of association in the purification diatomite process be 60% in low-grade diatomite be immersed in the distilled water 15 minutes, filter the back and under 100 ℃ of temperature, dry to water content 5%; This diatomite adds in the above-mentioned rare-earth ion solution for preparing according to 1: 25 solid-liquid weight ratio, and normal temperature stirred 45 minutes down, left standstill dipping 15 hours, and solution is filtered, and obtained filter cake and filtrate; It is that 60 ℃ of baking ovens are dried that filter cake is placed temperature, pulverizes, and screening obtains diatomite coal washing water and pit water treatment agent.
(2) treatment agent of the present invention is used for colliery coal washing water and pit water result
Term comprises among the following result:
Chemical oxygen demand COD refers to use oxygenant K
2CrO
7Organism in the oxygenolysis sewage is used and the organic amount of amount secondary indication that consumes suitable oxygen.
Ss suspended solid in the water, referring to can not be by the solid matter in the water of aperture 6-7 micron filter membrane.
In the table 1, get Yunnan Gui Shan coal mine sewage as process object, its former water COD and SS are through being measured as 368.5mg/L and 115.2mg/L, get embodiment 2 treatment agents respectively, the sewage-treating agent that diatomite and spent acid solution pyrolysis modification are made, each 0.3g of commercial polymerize aluminum chloride puts in the coal mine sewage of 1L Gui mountain, and the polyacrylamide 0.3g that gets the commercial goodsization is dissolved in the 20mL water wiring solution-forming and puts in the coal mine sewage of 1L Gui mountain, evenly stirred 30 seconds fast, left standstill 10 minutes, get supernatant liquid, distinguish measure CO D and SS again, calculate COD clearance and SS clearance, as shown in table 1.
Table 1 the present invention and different treatment agent are to Gui mountain coal mine sewage water treatment data relatively
| The water conditioner type | Consumption (g) | Gui mountain coal mine sewage | |
| COD clearance % | SS clearance % | ||
| Treatment agent sewage-treating agent polymerize aluminum chloride of the present invention (PAC) polyacrylamide (PAM) | 0.30 0.30 0.30 0.30 | 86.7 38.9 18.6 68.2 | 96.3 76.7 34.4 60.2 |
As table 2, get coal washery, Gui Shan colliery, Yunnan sewage as process object, its former water COD and SS are through being measured as 3179.7mg/L and 3340.7mg/L, get the embodiment of the invention 3 treatment agents respectively, the sewage-treating agent that diatomite and spent acid solution pyrolysis modification are made (another application for a patent for invention that the applicant proposes simultaneously), each 0.5g of the polymerize aluminum chloride of commercial goodsization puts in the 1L Gui Shan colliery coal washing water, getting commercial polyacrylamide 0.5g again is dissolved in the 20mL water wiring solution-forming and puts in the 1L Gui Shan colliery coal washing water, evenly stirred 30 seconds fast, left standstill 10 minutes, get supernatant liquid, it is as follows to measure its result:
The present invention handles back COD and SS is 587.2mg/L and 179.6mg/L, and its COD clearance is 81.5%, and the SS clearance is 94.6%.
The sewage-treating agent that diatomite and spent acid solution pyrolysis modification are made is handled back COD and SS is 2854.6mg/L and 3005.8mg/L, and its COD clearance is 10.2%, and the SS clearance is 10%.
Commercial polymerize aluminum chloride is handled back COD and SS is 3025.1mg/L and 3335.2mg/L, and its COD clearance is: 4.9%, and SS clearance almost nil (0.1%).
Commercial polyacrylamide is handled back COD and SS is 1102.5mg/L and 700.4mg/L, and its COD clearance is: 65.3%, and the SS clearance is: 79%.
Table 2 the present invention and different treatment agent are to Gui Shan colliery coal washing water water treatment data relatively
| The water conditioner type | Consumption (g) | Gui Shan colliery coal washing water | |
| COD clearance % | SS clearance % | ||
| Treatment agent sewage-treating agent polymerize aluminum chloride of the present invention (PAC) polyacrylamide (PAM) | 0.50 0.50 0.50 0.50 | 81.5 10.2 4.9 65.3 | 94.6 10 0.1 79 |
Annotate: because the cinder after the coal washing water treatment will utilize once more, and there is regulation in the index country that grades of the ash in the cinder, and as calculated, the consumption of water conditioner can not surpass 5/10000ths of sewage quantity, more than be the maximum dosage of water conditioner.
Claims (3)
1. utilize concomitant product in the Purification of Diatomite to prepare the method for colliery coal washing water and pit water treatment agent, comprise sulfuric acid washing purify to burn vector be in 15%～24% the diatomite process dioxide-containing silica of association be 50-60% in low-grade diatomite, it is characterized in that this treatment agent preparation process is:
(1) one or more of P123 and sodium-metaphosphate or cetyl trimethylammonium bromide or 4 bromide are dissolved in the water, are made into concentration expressed in percentage by weight and are 2.5～5 rare-earth ion solution, regulating this pH value of solution with sodium hydroxide is 8～11;
(2) diatomite was soaked in distilled water 15～30 minutes, filter the back under 80 ℃～120 ℃ temperature, dry to water content less than 5%;
(3) pressed diatomite and solution solid-liquid weight ratio 1: 10～1: 30, stir in the solution that the diatomite adding step (1) that step (2) is obtained prepares, leave standstill 15～20 hours after-filtration of dipping and obtain filter cake, filter cake being placed temperature is that 60～100 ℃ of baking ovens are dried again, collect resultant, pulverize, sieve;
Above-mentioned P123 is polyvinyl ether-polypropylene ether-polyvinyl ether triblock copolymer PEO-PPO-PEO.
2. the method for utilizing concomitant product in the Purification of Diatomite to prepare colliery coal washing water and pit water treatment agent according to claim 1 is characterized in that the P123 weight percent concentration is greater than 2.5 in the rare-earth ion solution of this treatment agent.
3. utilize the colliery coal washing water of concomitant product preparation in the Purification of Diatomite and the using method of pit water treatment agent, it is characterized in that this treatment agent is added in coal washing water or the pit water with 0.3～0.5g/L, evenly stirred 30 seconds, left standstill 10 minutes, the siphon supernatant liquid reclaims lower floor's diatomite coal slime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100663635A CN101182058A (en) | 2007-11-07 | 2007-11-07 | Method for preparing coal mine water additive by concomitancy of diatomite purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100663635A CN101182058A (en) | 2007-11-07 | 2007-11-07 | Method for preparing coal mine water additive by concomitancy of diatomite purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101182058A true CN101182058A (en) | 2008-05-21 |
Family
ID=39447503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100663635A Pending CN101182058A (en) | 2007-11-07 | 2007-11-07 | Method for preparing coal mine water additive by concomitancy of diatomite purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101182058A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198963A (en) * | 2011-03-17 | 2011-09-28 | 夏建锋 | Composite water treatment agent special for coal washing wastewater and preparation method thereof |
| WO2014059466A1 (en) * | 2012-10-16 | 2014-04-24 | Ecofix Pty Ltd | Sorbent material |
| CN105129941A (en) * | 2015-08-31 | 2015-12-09 | 蚌埠龙达农业专业合作社 | Aquaculture pond pollutant curing decomposing agent and preparation method thereof |
| CN107089786A (en) * | 2017-05-05 | 2017-08-25 | 昆明理工大学 | A kind of method that utilization aluminium ash improves municipal sludge dehydrating effect |
| CN107674531A (en) * | 2017-10-31 | 2018-02-09 | 倪佐才 | A kind of environmental protection coating material for timber and preparation method thereof |
-
2007
- 2007-11-07 CN CNA2007100663635A patent/CN101182058A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198963A (en) * | 2011-03-17 | 2011-09-28 | 夏建锋 | Composite water treatment agent special for coal washing wastewater and preparation method thereof |
| CN102198963B (en) * | 2011-03-17 | 2012-07-25 | 夏建锋 | Composite water treatment agent special for coal washing wastewater and preparation method thereof |
| WO2014059466A1 (en) * | 2012-10-16 | 2014-04-24 | Ecofix Pty Ltd | Sorbent material |
| CN105129941A (en) * | 2015-08-31 | 2015-12-09 | 蚌埠龙达农业专业合作社 | Aquaculture pond pollutant curing decomposing agent and preparation method thereof |
| CN107089786A (en) * | 2017-05-05 | 2017-08-25 | 昆明理工大学 | A kind of method that utilization aluminium ash improves municipal sludge dehydrating effect |
| CN107089786B (en) * | 2017-05-05 | 2020-10-27 | 昆明理工大学 | Method for improving municipal sludge dewatering effect by using aluminum ash |
| CN107674531A (en) * | 2017-10-31 | 2018-02-09 | 倪佐才 | A kind of environmental protection coating material for timber and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guo et al. | Rice straw biochar modified by aluminum chloride enhances the dewatering of the sludge from municipal sewage treatment plant | |
| Liu et al. | Applying an electric field in a built-in zero valent iron–anaerobic reactor for enhancement of sludge granulation | |
| CN101486563B (en) | Biological haydite burned from mine tailings, and preparation and use method thereof | |
| CN102775019B (en) | Coupling type sewage de-phosphorization purification regeneration treatment technique | |
| WO2020010678A1 (en) | Novel material for in-situ decontamination of turbid river water and preparation method thereof | |
| Wang et al. | The key role of inoculated sludge in fast start-up of sequencing batch reactor for the domestication of aerobic granular sludge | |
| CN101597102A (en) | A kind of preparation method who is used for the magnetic flocculant of magnetic separation method water processing technique | |
| CN104475037A (en) | Porous material capable of removing total phosphorus in wastewater and preparation method of porous material | |
| CN101182058A (en) | Method for preparing coal mine water additive by concomitancy of diatomite purification | |
| CN116062941B (en) | Synergistic defluorination and dechlorination method for high-fluorine-content chlorine-containing wastewater in photovoltaic industry | |
| CN101928031A (en) | Production method of polyaluminium chloride | |
| CN109485229A (en) | A kind of method that sludge deep conditioning is dehydrated while recycling conditioning activator | |
| CN105417777A (en) | Sewage coagulation and adsorption sedimentation separation-separator anaerobic bio-gas regeneration treatment method | |
| CN102775020A (en) | Coupling type sewage purification and regeneration treating method capable of removing phosphorus efficiently | |
| CN101239748B (en) | Coal ash activation substance, fast flocculant by applying the coal ash and use thereof | |
| CN105417765B (en) | A kind of municipal sewage organic carbon enriching and recovering utilizes device and its application method | |
| CN114368961A (en) | Preparation method and new application of iron tailing ceramic filter material | |
| CN113896305A (en) | Preparation method of polyaluminum ferric chloride water purifying agent | |
| CN110054314A (en) | A method of utilizing antimony ion in hydroxyapatite & bodied ferric sulfate & polyacrylamide coagulation removal dyeing waste water | |
| CN113104976A (en) | Flocculent autotrophic denitrification composite material and preparation method thereof | |
| CN109264942A (en) | The low increasing of sludge is than solid biologic environment-friendlyconditioner conditioner | |
| CN100537442C (en) | Method for preparing sewage water additive by intermediate product of diatomite purification | |
| CN116924605A (en) | Mine acid wastewater ecological treatment system and treatment method thereof | |
| CN102992459A (en) | Method for treating wastewater by using flocculant | |
| CN113044961B (en) | Carrier with autotrophic denitrification function and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080521 |