CN107500880A - A kind of sludge and mine tailing mixed method - Google Patents
A kind of sludge and mine tailing mixed method Download PDFInfo
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- CN107500880A CN107500880A CN201710805223.9A CN201710805223A CN107500880A CN 107500880 A CN107500880 A CN 107500880A CN 201710805223 A CN201710805223 A CN 201710805223A CN 107500880 A CN107500880 A CN 107500880A
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- sludge
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- 238000000034 method Methods 0.000 title claims abstract description 76
- 239000010802 sludge Substances 0.000 title claims abstract description 49
- 239000002689 soil Substances 0.000 claims abstract description 109
- 229910052751 metal Inorganic materials 0.000 claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 69
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 64
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 239000010438 granite Substances 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 241000287828 Gallus gallus Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 210000003608 fece Anatomy 0.000 claims description 3
- 239000010903 husk Substances 0.000 claims description 3
- 239000010871 livestock manure Substances 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000004058 oil shale Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000010902 straw Substances 0.000 claims 1
- 230000035558 fertility Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000002910 solid waste Substances 0.000 abstract description 2
- YGQYEBAPYUJQHQ-UHFFFAOYSA-N [Cr].[Ni].[Cu].[Zn].[As].[Cd].[Hg].[Pb] Chemical compound [Cr].[Ni].[Cu].[Zn].[As].[Cd].[Hg].[Pb] YGQYEBAPYUJQHQ-UHFFFAOYSA-N 0.000 description 34
- 239000000243 solution Substances 0.000 description 25
- 239000002253 acid Substances 0.000 description 12
- 238000007654 immersion Methods 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
Abstract
A kind of sludge and mine tailing mixed method, the terminal sludge that city is handled through sewage treatment plant is mixed with mine tailing, the content of beary metal in sludge, mine tailing, conventional planting soil is detected respectively, take sludge M ㎏, mine tailing N ㎏, planting soil L ㎏, total heavy metal content Y, total heavy metal content Y divided by gross mass is calculated（M+N+L）Obtain content of beary metal in mixed planting technique soil, according to content of beary metal in obtained planting technique soil, adjust the quality of mine tailing and conventional planting soil so that content of beary metal in the planting technique soil gone out, meet standard of soil environment quality (mg/kg)（GB15618‑1995）Three-level PH>6.5.Content of beary metal is low in the mixed planting soil of the present invention, it is possible to increase the fertility of planting technique soil, solid waste is utilized effectively, turns waste into wealth.
Description
Technical field
The present invention relates to planting technique soil field, and in particular to a kind of to be mixed into the sludge containing heavy metal with mine tailing
Meet the planting technique soil of standard of soil environment quality.
Background technology
The terminal sludge that city is handled through sewage treatment plant contains abundant organic matter, nitrogen, phosphorus, potassium, can improve soil
Fertility, granularity, pH value meet the requirement of soil, but because its content of beary metal is exceeded, it is impossible to it is used alone as planting soil.Mine tailing is
Refer to the tailings that metal or nonmetallic ore leave after ore dressing, degree particle, pH value meet the requirement of soil, but some mine tailing heavy metals
Content overproof, long-term accumulation, easily causes the geological disasters such as landslide, while forms dust pollution, and some tailing water liquid heavy metals contain
Measure exceeded, easily underground water and surface water are polluted.But sludge and mine tailing are rationally applied, on the one hand can be eliminated
Hidden danger is stated, on the other hand can save land resource.
The content of the invention
To solve the above problems, the present invention provides a kind of sludge and mine tailing mixed method, goal of the invention of the invention is logical
Cross following technical scheme realization：
Sludge, mine tailing and conventional planting soil are stirred to obtain planting technique soil, its blend step by forced stirrer
It is as follows：
S1：The content of beary metal in sludge, mine tailing, conventional planting soil is detected respectively, testing result be respectively X1,
X2、X3；
S2：Sludge M ㎏, mine tailing N ㎏, planting soil L ㎏ are taken, preferably M, N, L mass ratio is 1:0.5-3:2.5-5.5；
S3：Total heavy metal content Y is obtained by X1*M+X2*N+X3*L；
S4：Total heavy metal content Y divided by gross mass（M+N+L）Obtain content of beary metal in mixed planting technique soil；
S5：According to content of beary metal in obtained planting technique soil, the quality of adjustment mine tailing and conventional planting soil so that go out
Content of beary metal in planting technique soil, meet standard of soil environment quality (mg/kg)（GB15618-1995）Three-level PH>6.5.
Stalk, rice husk, string, chicken manure, turfy soil, adhesive, water conservation are also added into obtained planting technique soil
Agent, it is adjustment soil and increase nutrient that it, which is acted on, and the indexs such as planting technique soil's water content, fertility, viscosity, pH value are changed
It is kind, be advantageous to the growth of various plants.
The conventional planting soil can also be substituted by granite powder or mine tailing.The mine tailing is golden tail or Kimberley tail
Or granite powder or copper tail or iron tail or quartz sand tail or oil shale tail.
The present invention draws after mixing heavy metal in planting technique soil according to the cubage of heavy metal in sludge and mine tailing
Content, the content of beary metal in planting technique soil can be effectively controlled in this way, can be according to different purposes standards
With require, produce meet corresponding demand planting technique soil.The invention has the advantages that by the sludge containing heavy metal with
Mine tailing mixes utilization in proportion, and formation meets standard of soil environment quality（GB15618-1995）Three-level PH>6.5 greening kind
Soil is planted, content of beary metal effectively reduces in planting technique soil, improves the fertility of planting technique soil, solid waste is obtained effectively
Utilize, turn waste into wealth, the planting technique soil finally given is applied to urban afforestation, mine is repaired, afforestation is planted trees etc..
Embodiment
A kind of sludge and mine tailing mixed method, sludge is mixed in proportion with mine tailing, obtains the planting technique for meeting table 1
Soil.
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 1.0 | 1.5 | 40 | 400 | 500 | 300 | 500 | 200 |
Table 1：Standard of soil environment quality (mg/kg)（GB15618-1995）Three-level PH>6.5
Embodiment 1
Sludge is mixed with golden mine tailing, conventional planting soil, blend step is as follows：
S1. sludge is detected, obtained Heavy Metal Level In Sludge is as shown in table 2：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 2.7 | 4.9 | 20 | 280 | 42 | 173 | 1280 | 120 |
Table 2：Sludge heavy-metal content（mg/kg)
Golden tail is detected, content of beary metal is as shown in table 3 in obtained golden tail：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 0.9 | 0.2 | 442 | 16.5 | 60.7 | 38.1 | 262 | 20.6 |
Table 3：Golden mine tailing content of beary metal（mg/kg)
S 2. takes sludge 1kg, the golden kg of mine tailing 0.5, commonly uses planting soil（Can be considered content of beary metal is 0）4.5 kg.
S 3. calculates total heavy metal content, by taking cadmium as an example：2.7*1+0.9*0.5+0*4.5=3.15mg, finally gives gross weight
Tenor is as shown in table 4：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Total heavy metal content | 3.15 | 5.0 | 241 | 288.25 | 72.35 | 192.05 | 1411 | 130.3 |
Table 4：Total heavy metal content（mg)
The total heavy metal contents of S 4. divided by quality, by taking cadmium as an example：3.15/（1+0.5+4.5）=0.525mg/kg, after obtaining mixing
Content of beary metal is as shown in table 5 in planting technique soil：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.525 | 0.83 | 40.17 | 48.04 | 12.06 | 32.00 | 235.17 | 21.72 |
Table 5：Content of beary metal in planting technique soil（mg/kg)
After S 5. contrasts table 5 and table 1, heavy metal arsenic content overproof is obtained, to the quality of the conventional planting soil in step S2
It is adjusted, is 5kg by the Mass adjust- ment of conventional planting soil, and repeat step S3, S4, obtained after calculating in planting technique soil
Content of beary metal is as shown in table 6：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.48 | 0.77 | 37.06 | 44.35 | 11.13 | 29.55 | 217.08 | 20.05 |
Table 6：Content of beary metal in planting technique soil（mg/kg)
Content of beary metal meets standard of soil environment quality (mg/kg) in the planting technique soil being calculated after adjustment
（GB15618-1995）Three-level PH>6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
Embodiment 2
Sludge is mixed with golden mine tailing, granite powder, blend step is as follows：
S 1. detects to sludge, and obtained Heavy Metal Level In Sludge is as shown in table 2：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 2.7 | 4.9 | 20 | 280 | 42 | 173 | 1280 | 120 |
Table 2：Sludge heavy-metal content（mg/kg)
Golden tail is detected, content of beary metal is as shown in table 3 in obtained golden tail：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 0.9 | 0.2 | 442 | 16.5 | 60.7 | 38.1 | 262 | 20.6 |
Table 3：Golden mine tailing content of beary metal（mg/kg)
Granite is detected, content of beary metal is as shown in table 7 in obtained granite powder：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 0.1 | 0.0 | 1.0 | 40.7 | 18.6 | 2.3 | 54.1 | 4.9 |
Table 7：Granite powder content of beary metal（mg/kg)
S 2. takes sludge 1kg, the golden kg of mine tailing 0.5, the kg of granite powder 4.5.
S 3. calculates total heavy metal content, by taking cadmium as an example：2.7*1+0.9*0.5+0.1*4.5=3.6mg, finally give total
Content of beary metal is as shown in table 8：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Total heavy metal content | 3.6 | 5.00 | 245.5 | 371.95 | 156.05 | 202.4 | 1654.45 | 152.35 |
Table 8：Total heavy metal content（mg)
The total heavy metal contents of S 4. divided by quality, by taking cadmium as an example：3.6/（1+0.5+4.5）=0.6mg/kg, afforested after being mixed
Content of beary metal is as shown in table 9 in planting soil：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.6 | 0.83 | 40.92 | 62.00 | 26.01 | 33.73 | 275.74 | 25.39 |
Table 9：Content of beary metal in planting technique soil（mg/kg)
After S 5. contrasts table 9 and table 1, heavy metal arsenic content overproof is obtained, the quality of granite powder in step S2 is carried out
Adjustment, it is 5kg by the Mass adjust- ment of granite powder, and repeat step S3, S4, heavy metal in planting technique soil is obtained after calculating
Content is as shown in table 10：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.55 | 0.77 | 37.77 | 57.22 | 24.01 | 31.14 | 254.53 | 23.44 |
Table 10：Content of beary metal in planting technique soil（mg/kg)
Content of beary metal meets standard of soil environment quality (mg/kg) in the planting technique soil being calculated after adjustment
（GB15618-1995）Three-level PH>6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
Embodiment 3
Sludge 1kg, golden mine tailing 0.5kg, iron tailings 5kg are mixed by forced stirrer, for example preceding embodiment of blend step, passed through
After calculating, content of beary metal is as shown in table 11 in iron tailings：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 0.1 | 0.0 | 4.3 | 42.2 | 7.2 | 19.7 | 39.4 | 24.2 |
Table 11：Iron tailings content of beary metal（mg/kg)
By step S1-S4 calculating, it is as shown in table 12 to obtain content of beary metal in planting technique soil：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.5 | 0.8 | 40.4 | 76.8 | 16.7 | 44.7 | 247.4 | 38.7 |
Table 12：Content of beary metal in planting technique soil（mg/kg)
After S 5. contrasts table 12 and table 1, heavy metal arsenic content overproof is obtained, the quality of iron tailings in step S2 is adjusted
It is whole, it is 5.5kg by the Mass adjust- ment of iron tailings, and repeat step S3, S4, content of beary metal in planting technique soil is obtained after calculating
As shown in table 13：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.51 | 0.71 | 37.51 | 71.33 | 15.51 | 41.51 | 229.71 | 35.9 |
Table 13：Content of beary metal in planting technique soil（mg/kg)
Content of beary metal meets standard of soil environment quality (mg/kg) in the planting technique soil being calculated after adjustment
（GB15618-1995）Three-level PH>6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
Embodiment 4
By sludge 1kg, Kimberley mine tailing 2kg, planting soil is commonly used（Can be considered content of beary metal is 0）3kg passes through action of forced stirring
Machine mixes, for example preceding embodiment of blend step, and the content of beary metal that Kimberley mine tailing is obtained by calculating measurement is as shown in table 14：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 0.22 | 0.009 | 4.88 | 36.9 | 24.9 | 662 | 147 | 476 |
Table 14：Kimberley mine tailing content of beary metal（mg/kg)
Content of beary metal is as shown in Table 15 in the planting technique soil obtained after mixing：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.5 | 0.8 | 5.0 | 59.0 | 15.3 | 249.5 | 262.3 | 178.7 |
Table 15：Content of beary metal in planting technique soil（mg/kg)
After table 15 and table 1 are contrasted, content of beary metal meets standard of soil environment quality (mg/kg) in obtained planting technique soil
（GB15618-1995）Three-level PH>6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
Embodiment 5
By sludge 1kg, granite powder 5kg is stirred to obtain planting technique soil by forced stirrer, and its blend step is such as
Preceding embodiment, it is as shown in table 16 that content of beary metal in planting technique soil is calculated：
Table 16：Content of beary metal in planting technique soil（mg/kg)
The planting technique soil obtained after mixing meets standard of soil environment quality (mg/kg)（GB15618-1995）Three-level PH>
6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
Embodiment 6
Sludge 1kg, copper tailing 3kg, commonly use planting soil（Can be considered content of beary metal is 0）2.5kg is stirred by forced stirrer
Mix mixing, for example preceding embodiment of mixed process, the content of beary metal that measurement obtains copper tailing is as shown in table 17：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 1.19 | 0.029 | 39.1 | 527 | 20.6 | 2.66 | 172 | 10.8 |
Table 17：Copper tailing content of beary metal（mg/kg)
Content of beary metal is as shown in table 18 in the planting technique soil being calculated：
Table 18：Content of beary metal in planting technique soil（mg/kg)
Content of beary metal meets standard of soil environment quality (mg/kg) in mixed planting technique soil（GB15618-1995）Three
Level PH>6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
Embodiment 7
Sludge 1kg, iron tail 5kg are stirred by forced stirrer, for example preceding embodiment of blend step, measure obtained iron tail
The content of beary metal of ore deposit is as shown in table 19：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content | 0.087 | 0.008 | 4.32 | 42.2 | 7.24 | 19.7 | 39.4 | 24.2 |
Table 19：Copper tailing content of beary metal（mg/kg)
Content of beary metal is as shown in table 20 in the planting technique soil being calculated after mixing：
| Heavy metal title | Cadmium | Mercury | Arsenic | Copper | Lead | Chromium | Zinc | Nickel |
| Content of beary metal in planting technique soil | 0.5 | 0.8 | 6.9 | 81.8 | 13.0 | 45.3 | 246.2 | 40.2 |
Table 20：Content of beary metal in planting technique soil（mg/kg)
Content of beary metal meets standard of soil environment quality (mg/kg) in mixed planting technique soil（GB15618-1995）Three
Level PH>6.5, planted trees available for urban afforestation, mine reparation, afforestation etc..
The ratio of sludge and mine tailing is not limited to the ratio in above-described embodiment in the present invention, it is contemplated that green after mixing
Change the nutritional ingredient and the factor such as content of beary metal of planting soil, preferably take 1 part of sludge, other materials proportioning summation take 4-5 parts with
On.
And mixed method of the present invention is safety and environmental protection, and planting technique soil is in the aqueous solution or Urban Acid Rain shape
Under state, meet《Urban wastewater treatment firm pollutant emission standard》GB18918-2016 or《Standards for drinking water quality》
GB5749-2006,《Urban wastewater treatment firm pollutant emission standard》GB18918-2016 is as shown in table 21：
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 50 | 100 | 10 | 100 | 1 | 1000 | 500 | 50 |
Table 21：Solution heavy metal standard index（ug/L）GB18918-2016
《Standards for drinking water quality》GB5749-2006 is as shown in table 22：
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 50 | 10 | 5 | 10 | 1 | 1000 | 1000 | 20 |
Table 22：Solution heavy metal standard index（ug/L）GB5749-2006
The mixed planting technique soil aqueous solution is detected, as shown in table 23,24,25,26,27,28,29,30,31,32：
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 0.3 | 11.1 | 0.4 | 8.7 | 0.0 | 78.2 | 35.6 | 58.4 |
| After 3 immersions | 1.6 | 3.9 | 0.1 | 3.4 | 0.0 | 60.7 | 40.7 | 10.8 |
Table 23：Sludge water solution index（ug/L）PH=6.7
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 0.3 | 16.5 | 0.4 | 6.8 | 0.0 | 58.3 | 27.1 | 53.4 |
| After 3 immersions | 15.1 | 3.3 | 0.1 | 2.0 | 0.1 | 24.5 | 24.2 | 10.3 |
Table 24：Sludge weak acid solution index（ug/L）PH=3.8
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 25.9 | 3.6 | 0.3 | 5.3 | 0.1 | 1.9 | 3.5 | 5.3 |
Table 25：Golden tail water solution index（ug/L）PH=6.7
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 26.5 | 5.1 | 0.4 | 2.7 | 0.1 | 0.7 | 2.9 | 7.4 |
Table 26：Golden tail weak acid solution index（ug/L）PH=3.8
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 38.7 | 4.6 | 0.3 | 15.2 | 0.1 | 15.8 | 3.4 | 52.3 |
| After 3 immersions | 13.5 | 2.1 | 0.0 | 1.1 | 0.1 | 5.6 | 3.8 | 4.0 |
Table 27：Kimberley aqueous solution index（ug/L）PH=6.7
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 46.5 | 2.8 | 0.4 | 20.3 | 0.1 | 17.9 | 3.9 | 72.8 |
| After 3 immersions | 18.2 | 2.3 | 0.2 | 0.6 | 0.1 | 18.3 | 4.3 | 13.4 |
Table 28：Kimberley weak acid solution index（ug/L）PH=3.8
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 29.2 | 5.4 | 0.3 | 2.8 | 0.0 | 2.8 | 29.3 | 2.5 |
Table 29：Granite powder aqueous solution index（ug/L）PH=6.7
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 38.7 | 4.9 | 0.4 | 3.0 | 0.0 | 61.0 | 185.5 | 13.1 |
Table 30：Granite powder weak acid solution index（ug/L）PH=3.8
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 33.1 | 5.3 | 0.3 | 2.3 | 0.1 | 0.3 | 1.7 | 2.0 |
Table 31：Iron tail water solution index（ug/L）PH=6.7
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 30.9 | 6.0 | 0.4 | 3.6 | 0.1 | 1.1 | 3.2 | 4.4 |
Table 32：Iron tailings weak acid solution index（ug/L）PH=3.8
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 35.4 | 5.6 | 0.3 | 5.6 | 0.1 | 4.0 | 15.4 | 3.1 |
Table 33：Copper tailing aqueous solution index（ug/L）PH=6.7
| Heavy metal title | Chromium | Arsenic | Cadmium | Lead | Mercury | Zinc | Copper | Nickel |
| Content | 33.7 | 5.2 | 0.4 | 9.4 | 0.1 | 10.1 | 32.0 | 5.3 |
Table 34：Copper tailing weak acid solution index（ug/L）PH=3.8
Table 23,25,27,29,31,33 is that sludge, golden mine tailing, Kimberley, granite, iron tailings, the copper tailing aqueous solution refer to respectively
Mark, table 24,26,28,30,32,34 are that sludge, golden mine tailing, Kimberley, granite, iron tailings, copper tailing weak acid solution refer to respectively
Mark, it meets urban wastewater treatment firm pollutant emission standard》GB18918-2016 standards, the sludge solution ph after immersion
=6.0, golden mine tailing solution ph=8.0 after immersion, Kimberley solution ph=7.7 after immersion, the granite powder after immersion
Solution ph=7.7, iron tail water solution PH=7.9 after immersion, copper tailing solution ph=7.7 after immersion.
The sludge aqueous solution and weak acid solution, the Kimberley aqueous solution and weak acid solution are not met《Standards for drinking water quality》
GB5749-2006 standards, other solution meet《Standards for drinking water quality》GB5749-2006 standards.It is water-soluble to sludge
Liquid and weak acid solution, the Kimberley aqueous solution and weak acid solution carry out 3 immersions, and the aqueous solution and weak acid solution after immersion meet
《Standards for drinking water quality》GB5749-2006 standards.Exceeded solution can be received using heavy metal-polluted dye liquor recovery technology
Collection.
Shown by many experiments and experimental data, the method applied in the present invention safety and environmental protection, can will discard, not conform to
The sludge and mine tailing of lattice are turned waste into wealth, and are mixed in proportion, are rationally utilized, planted trees available for urban afforestation, mine reparation, afforestation etc.
Aspect, improve environment, economize on resources.Organic matter, full nitrogen, full phosphorus in planting technique soil meet technical indicator, in dispensing,
Stalk, rice husk, string, chicken manure, turfy soil, adhesive, water-loss reducer etc. are mixed in planting technique soil, to planting technique soil
The indexs such as moisture content, fertility, viscosity, pH value are improved, and are advantageous to the growth of various plants.
Claims (4)
1. a kind of sludge and mine tailing mixed method, it is characterised in that：Sludge and mine tailing, conventional planting soil are passed through into action of forced stirring
Machine, which is mixed to get, meets standard of soil environment quality（GB15618-1995）Three-level PH>6.5 planting technique soil, its blend step
It is as follows：
S1：Detect that the content of beary metal in sludge, mine tailing, conventional planting soil is X1, X2, X3 respectively；
S2：Sludge M ㎏, mine tailing N ㎏, planting soil L ㎏ are taken, preferably M, N, L mass ratio is 1:0.5-3:2.5-5.5；
S3：Total heavy metal content Y is obtained by X1*M+X2*N+X3*L；
S4：Total heavy metal content Y divided by gross mass（M+N+L）Obtain content of beary metal in mixed planting technique soil；
S5：According to content of beary metal in obtained planting technique soil, the quality of adjustment mine tailing and conventional planting soil so that go out
Content of beary metal in planting technique soil, meet standard of soil environment quality (mg/kg)（GB15618-1995）Three-level PH>6.5.
2. a kind of sludge as claimed in claim 1 and mine tailing mixed method, it is characterised in that：There are straw in planting technique soil
Stalk, rice husk, string, chicken manure, turfy soil, adhesive, water-loss reducer.
3. a kind of sludge as claimed in claim 1 and mine tailing mixed method, it is characterised in that：The conventional planting soil can be with
Substituted by granite powder or mine tailing.
4. a kind of sludge and mine tailing mixed method as described in claim 1 or 3, it is characterised in that：The mine tailing be golden tail or
Kimberley tail or granite powder or copper tail or iron tail or quartz sand tail or oil shale tail.
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| CN109392655A (en) * | 2018-11-19 | 2019-03-01 | 大连青松智慧生态科技有限公司 | A method of sludge and metallurgical slag are mixed to get planting soil |
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| CN110454165A (en) * | 2019-07-26 | 2019-11-15 | 武汉理工大学 | One kind repairing matrix and preparation method thereof and burying method for lime stone stone pit abandoned mine pit |
| CN110454165B (en) * | 2019-07-26 | 2020-07-28 | 武汉理工大学 | Repair matrix for abandoned mine pits of limestone quarry and preparation method and landfill method thereof |
| CN113372920A (en) * | 2021-06-09 | 2021-09-10 | 华南师范大学 | Composite conditioner for soil cadmium pollution remediation and preparation method and application thereof |
| CN113372920B (en) * | 2021-06-09 | 2022-03-04 | 华南师范大学 | Composite conditioner for soil cadmium pollution remediation and preparation method and application thereof |
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Application publication date: 20171222 |