CN204996822U - Be used for prosthetic equipment of heavy metal cadmium pollution arable land soil - Google Patents
Be used for prosthetic equipment of heavy metal cadmium pollution arable land soil Download PDFInfo
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- CN204996822U CN204996822U CN201520765562.5U CN201520765562U CN204996822U CN 204996822 U CN204996822 U CN 204996822U CN 201520765562 U CN201520765562 U CN 201520765562U CN 204996822 U CN204996822 U CN 204996822U
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Abstract
The utility model provides a be used for prosthetic equipment of heavy metal cadmium pollution arable land soil, including transportation equipment (1) be equipped with work platform on transportation equipment (1), work platform is including flocculation groove (2), precipitation tank (5) and bed mud accumulator (8) that communicate in proper order. Simple, the easy operation of this equipment, the flocculation and precipitation effect is obvious, and the cadmium pollution of polluting in the soil of arable land can effectively be got rid of together to its corresponding restoration method, does not bring new pollutant into, does not produce secondary pollution.
Description
Technical field
The utility model belongs to soil pollution control and reparation field, refers to a kind of equipment repaired for heavy metal cadmium arable soil further.
Background technology
Along with the development of people's mining, smelting technique and modern industry, heavy metal pollution has become very serious and one of pollution of pole refractory reason.In soil environment, source of heavy metal pollution mainly contains the stacking of mine tailing in mining process and washwater directly discharges, the unprocessed random discharges of industry " three wastes " such as smelting, plating, and rural sewage is irrigated and Extract from Gasoline-fueled Vehicle discharge etc.
Cadmium is a kind of high toxicity heavy metal element easily entering human body with the contents level of danger, and the half-life, it can be divided into acute poisoning and chronic carcinogenic two aspects to the harm of human body, causes to reach 10 ~ 30 years the incubation period of slow poisoning more than 20 years.Mainly be distributed in liver and kidney after cadmium is absorbed by the body, be combined into metalloprotein with low molecular weight protein.Cadmium can replace the calcium in bone gradually in bone after enrichment, bone is seriously softened.Cadmium also can disturb the enzyme system in human body and organism, causes viscera function to lack of proper care, and then causes canceration distortion.Cadmium poisoning main manifestations is the infringement of renal function and the damage of lung, cause cortical necrosis of kidney, tubular injury, pulmonary emphysema, pulmonary edema, can also cause cardiac enlargement and hypertension, long-term cadmium of taking in will cause osteoporosis, embrittlement, waist disease, deformity of spine.In addition, cadmium can also cause male reproductive damage, and the incidence that male sex hormone increases increases with the rising of exposure level, and the incidence of prostate distinct antibodies also increases simultaneously.Cadmium in soil mainly exists in conjunction with the form of state cadmium and remaining state cadmium with exchange state cadmium, obligate ADSORPTION STATE cadmium, Fe-Mn oxidation, although Cadmium Pollution in Soils does not cause direct contact harm to human body, the cadmium in contaminated soil can enter human body by food chain and cause serious harm.
At present, China's rice cadmium pollution problem is also relatively serious, according to investigations, in more than 170 rice sample in China six areas (East China, northeast, Central China, south China and North China) market above county level, the problem that has the commercially available rice of 10% to there is cadmium to exceed standard.The soil contamination problem caused by heavy metals such as cadmiums in China in recent years has more report.20th century the mid-80 to south, certain is economized cadmium pollution water and irrigates the research that the IA that causes does and show, rice cadmium content exceeding standard rate is 71.69%, the poultry eggs amount of not transfiniting.The investigation certain province's food cadmium pollution situation of south carried out in 2005 ~ 2009 years, the recall rate of cadmium is 64.4%, and exceeding standard rate is 7.3%; The cadmium food that exceeds standard relates to grain, fruit, edible mushroom, aquatic products, pluck etc., illustrates in some regional cadmium pollution situations commonplace, should cause enough attention.
At present, cadmium pollution arable soil recovery technique comprises following several:
1. peripheral doses technology: peripheral doses technology comprises soil air lift technology, stable/solidification recovery technique, vitrification, heat treatment technics and Electroremediation technology etc.But the weak point that this technology exists: rehabilitation cost is expensive, energy consumption exists secondary pollution greatly, even.
2. bioremediation technology: bioremediation technology comprises microorganism remediation technology, phytoremediation technology, plant curing technology etc.But the weak point that this technology exists: the cycle of administering is very long, the later stage plant collect, treatment technology is more complicated, the maintenance management cycle is long.
3. chemical remediation technology: chemical remediation technology comprises Soil leaching technology, technology, chemical dehalogenation technology, solvent extraction techniques etc. are redeemed a vow to a god in oxidation.But the weak point that this technology exists: quantities is large, investment cost is high, spoiled soil structure, cause that fertility declines, heavy metal element is still retained in soil, easily endangers plant once again, is entered in animals and plants and human body by food chain.
Some specific equipment usually will be used in soil remediation process, such as patent 201210015615.2 discloses a kind of soil repair system, comprises condenser group, sack cleaner, air-introduced machine, the cooling tower of one-level conveying worm, vibratory sieve, deuterostrophies conveyer, Thermal desorption stove rotary kiln, three grades of conveying worm, disintegrating machine, the first water condenser, cyclone dust collectors, incinerator, gas condenser and the second water condenser compositions.It is multiple that this system can carry out hot repair to soil.
Patent application 201410453179.6 discloses a kind of heavy-metal contaminated soil restorative procedure and equipment thereof, and heavy-metal contaminated soil restorative procedure comprises fragmentation, sieves, cleans, precipitates, dosing reaction and leave standstill these steps of maintenance.Equipment in method comprise be connected successively disintegrating apparatus, vibrosieve equipment, wash stone equipment, sedimentation basin, de-filter equipment, medicine machine and mixing plant.
Summary of the invention
The purpose of this utility model there is provided a kind of equipment repaired for heavy metal cadmium arable soil, this equipment is simple, easy to operate, flocculation sediment successful, its corresponding restorative procedure together, effectively can remove the cadmium pollution of polluting in arable soil, do not bring new pollutant into, do not produce secondary pollution.
The technical scheme that the utility model adopts is:
For the equipment that heavy metal cadmium arable soil is repaired, comprise transporting equipment, described transporting equipment is provided with workbench, described workbench comprises the flocculation tank, stillpot and the bed mud accumulator tank that are communicated with successively.
Preferred version, described flocculation tank top is provided with muddy water inlet port, and described flocculation tank inside is provided with agitating device.
Preferred version, described stillpot top is provided with stillpot outlet pipe, and described stillpot inside is provided with inclined tube, is provided with bed mud delivery pipe bottom described stillpot.Described bed mud delivery pipe is communicated with described bed mud accumulator tank.
Preferred version, described equipment comprises two or more stillpot, makes sedimentation effect better.
Preferred version, described transporting equipment is agricultural vehicle.
The equipment repaired for heavy metal cadmium arable soil described in the utility model, mainly coordinates heavy metal cadmium arable soil restorative procedure to use, Main Function have following some:
1, vehicle-mounted removable feature, can be applicable to Farmland contamination soil treatment, processes directly to move to another sheet after a slice is ploughed and plough and process, and removes a dead lift from, repeatedly the defect such as mounting equipment.
2, the combined treatment successful of this equipment, the main application of this equipment be to repair process after arable land in muddy water carry out flocculation sediment process, by water treatment to rear reuse up to standard.This step is not mostly had to after the process of arable land in prior art.
Accompanying drawing explanation
Fig. 1 is a kind of top view of the equipment for the reparation of heavy metal cadmium arable soil;
Fig. 2 is the B-B sectional view of Fig. 1;
Annexation schematic diagram when Fig. 3 is described equipment use;
Wherein, 1 is transporting equipment, and 2 is flocculation tanks, 3 is agitating devices, and 4 is muddy water inlet ports, and 5 is stillpots, 6 is stillpot outlet pipes, and 7 is bed mud delivery pipes, and 8 is bed mud accumulator tanks, 9 is inclined tubes, 10 is plough, and 11 is pump holes, and 12 is pumps, 13 is carrier pipes, and 14 is the equipment repaired for heavy metal cadmium arable soil described in the utility model.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described further.
Embodiment 1
For the equipment that heavy metal cadmium arable soil is repaired, comprise transporting equipment 1, described transporting equipment 1 is provided with workbench, described workbench comprises flocculation tank 2, at least two stillpots 5 and bed mud accumulator tank 8 of being communicated with successively.
Described flocculation tank 2 top is provided with muddy water inlet port 4, and described flocculation tank 2 inside is provided with agitating device 3.
Described stillpot 5 top is provided with stillpot outlet pipe 6, and described stillpot 5 inside is provided with inclined tube 9, is provided with bed mud delivery pipe 7 bottom described stillpot 5.Described bed mud delivery pipe 7 is communicated with described bed mud accumulator tank 8.
Described transporting equipment 1 is agricultural vehicle.
concrete using method and application example:
For the arable soil (being planting vegetable originally) of a certain polluted by heavy metal cadmium, area is 2.8 mu, and the mean value of heavy metal in soil cadmium is 3.31mg/kg, exceeds standard more than 15 times, repairs it:
(1) to being subject to the arable land 10(of cadmium pollution to be planting vegetable originally) water-filling 400mm.
(2) in arable land 10, add compound and join reparation medicament, described compound join repair medicament configuration proportion, add concentration and function: lime milk solution accounts for 20%, adds concentration 200mg/L, pH value control 5 ~ 6, rise pH value regulating action; Liquor ferri trichloridi accounts for 70%, adds concentration 700mg/L, plays iron-based chemical combination; Diatomite accounts for 10%, adds concentration 100mg/L, plays suction-operated.
(3) to turn over stirring to the arable soil by cadmium pollution, ploughed depth is 300mm.
(4) turn over rear static 30min, reaction water introduced pump hole 11, aspirated be delivered to this novel described equipment through carrier pipe 13 by pump 12.
Described mixing plant power is 1.5kw, rotating speed is 60r/min; Be provided with inclined tube in stillpot, inclined tube internal diameter is 80mm, plagioclase 1m, level inclination 60 °.
During work, reaction water is introduced pump hole 11, aspirate the flocculation tank 2 in carrier pipe 13 is delivered to this novel described equipment by pump 12, and add bodied ferric sulfate in flocculation tank, adding concentration is 60mg/L, controls pH value 7 ~ 9; Polyacrylamide, dosage is 1mg/L, and open mixer and be fully uniformly mixed reaction, then enter farmland after the standard of after stillpot 5 precipitate and separate, supernatant and water outlet reach " urban sewage reutilization farmland irrigation water water quality " GB/T20922-2007 and continue to utilize.The mean value of this example heavy metal cadmium before reparation is 3.31mg/kg, and after repairing, the mean value≤0.01mg/L of cadmium, reaches national standard; The bed mud of stillpot 5 enters bed mud accumulator tank 8 through bed mud delivery pipe 7, carries out endanger useless process or resource reclaim by there being the unit of qualification.
After having repaired one piece or the contaminated arable soil of a slice, this novel described equipment can be driven repair process has been carried out to another block or a slice arable soil to be repaired.
Claims (5)
1. the equipment repaired for heavy metal cadmium arable soil, comprise transporting equipment (1), it is characterized in that, described transporting equipment (1) is provided with workbench, described workbench comprises the flocculation tank (2), stillpot (5) and the bed mud accumulator tank (8) that are communicated with successively.
2., according to claim 1 for the equipment that heavy metal cadmium arable soil is repaired, it is characterized in that, described flocculation tank (2) top is provided with muddy water inlet port (4), and described flocculation tank (2) inside is provided with agitating device (3).
3. according to claim 1 for the equipment of heavy metal cadmium arable soil reparation, it is characterized in that, described stillpot (5) top is provided with stillpot outlet pipe (6), described stillpot (5) inside is provided with inclined tube (9), described stillpot (5) bottom is provided with bed mud delivery pipe (7), and described bed mud delivery pipe (7) is communicated with described bed mud accumulator tank (8).
4., according to claim 1 for the equipment that heavy metal cadmium arable soil is repaired, it is characterized in that, comprise two or more stillpot (5).
5., according to claim 1 for the equipment that heavy metal cadmium arable soil is repaired, it is characterized in that, described transporting equipment (1) is agricultural vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520765562.5U CN204996822U (en) | 2015-09-30 | 2015-09-30 | Be used for prosthetic equipment of heavy metal cadmium pollution arable land soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520765562.5U CN204996822U (en) | 2015-09-30 | 2015-09-30 | Be used for prosthetic equipment of heavy metal cadmium pollution arable land soil |
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| Publication Number | Publication Date |
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| CN204996822U true CN204996822U (en) | 2016-01-27 |
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| CN201520765562.5U Active CN204996822U (en) | 2015-09-30 | 2015-09-30 | Be used for prosthetic equipment of heavy metal cadmium pollution arable land soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117729A (en) * | 2017-05-16 | 2017-09-01 | 程刚 | A kind of vehicle-mounted soil diafiltration desorption system and its method of work |
| CN109661261A (en) * | 2016-09-23 | 2019-04-19 | 栗田工业株式会社 | Coagulation sedimentation device |
-
2015
- 2015-09-30 CN CN201520765562.5U patent/CN204996822U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661261A (en) * | 2016-09-23 | 2019-04-19 | 栗田工业株式会社 | Coagulation sedimentation device |
| CN107117729A (en) * | 2017-05-16 | 2017-09-01 | 程刚 | A kind of vehicle-mounted soil diafiltration desorption system and its method of work |
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Address after: 410000 Hunan province Changsha hi tech Development Zone, Lu Tin Road No. 8 Building 2030 unit 5 Oaks Patentee after: Hunan Aibulu environmental Polytron Technologies Inc Address before: 410015 Hunan province Changsha labor Road No. 208 Metro landmark Valin 4A layer Patentee before: HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |