CN205008385U - Restore composite Biological processing system device that epipodium polycyclic aromatic hydrocarbons pollutes soil - Google Patents
Restore composite Biological processing system device that epipodium polycyclic aromatic hydrocarbons pollutes soil Download PDFInfo
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- CN205008385U CN205008385U CN201520196569.XU CN201520196569U CN205008385U CN 205008385 U CN205008385 U CN 205008385U CN 201520196569 U CN201520196569 U CN 201520196569U CN 205008385 U CN205008385 U CN 205008385U
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Abstract
The utility model provides a restore composite Biological processing system device that epipodium polycyclic aromatic hydrocarbons pollutes soil, the composite Biological processing system device include soil organisms pile the system, reinforce ventilation and monitored control system, gas treating system, medicament prepare with the system of batching. Utilize the former various soil that pollute in the soil the bioremediation of microorganism, realization epipodium polycyclic aromatic hydrocarbons pollution soil through the hot housing. Reinforce the measure including reinforceing the even oxygen suppliment of continuous drawing ventilation to organic surface -activeagent in succession batches. The utility model discloses abundant analysis epipodium polycyclic aromatic hydrocarbons pollutes soil organisms and restores the difficult point, provides the comprehensive measure and degrades effectively and pollute the epipodium polycyclic aromatic hydrocarbons pollutant in the soil, and process is simple, engineering and the working costs is low, the treatment effeciency is high, is one set of high efficiency, economy, processing system device that environment secondary pollution is little, has good economic benefits and social.
Description
Technical field
The utility model relates to a kind of complex biological treatment system device repairing epipodium polycyclic aromatic hydrocarbon pollution, belongs to technical field of soil remediation.
Background technology
Polycyclic aromatic hydrocarbon (PAHs) refers to a compounds of the low aqueous solubility that two or more aromatic ring fusion is formed together.This compounds has carcinogenic, teratogenesis and mutagenic characteristic because of it and receives much attention.Environmental Protection Agency lists 16 kinds of polycyclic aromatic hydrocarbons as priority pollutants according to long-term research and practice.One of polycyclic aromatic hydrocarbon major pollutants classification having become China's soil pollution.At present, the method for the polycyclic aromatic hydrocarbon in soil of degrading has the methods such as biological prosthetic, chemical oxidation and photodissociation, and wherein biological prosthetic is be considered to remove the most cost-effective method of PAHs in soil paid attention to widely.
Under normal circumstances, water-soluble the increasing and reduce with phenyl ring quantity of polycyclic aromatic hydrocarbon, volatility increases with phenyl ring quantity and reduces, and biodegradable easy degree also increases along with number of rings and reduces.Therefore generally polycyclic aromatic hydrocarbon be divided into low ring polycyclic aromatic hydrocarbon (number of rings≤4) and high ring polycyclic aromatic hydrocarbon (number of rings > 4) and distinguish the difference of its character.More for the biodegradation research and practice of polycyclic aromatic hydrocarbon both at home and abroad, wherein high ring polycyclic aromatic hydrocarbon because of water-soluble low, be easily adsorbed in the factors such as microbe species that is organic upper and that can be substrate with high ring polycyclic aromatic hydrocarbon is few and reduce its bioavailability, be considered to the difficult point that polycyclic aromatic hydrocarbon soil pollution is biological prosthetic.Such as Guerin studies Biochemical method containing polycyclic aromatic hydrocarbon pollution, the PAHs degradation rate of result display 2-4 ring is 51%-97%, the degradation rate of 5-6 ring PAHs is only 35-45% (T.F.Guerin, Bioremediationofphenolsandpolycyclicaromatichydrocarbons increosotecontaminatedsoilusingex-situlandtreatment, J.Hazard.Mater.B65 (1999) 305-315.); The people such as domestic scholars the Sudan have studied bacillus SB02, Zoogloea SB09 and the Flavobacterium SB10 degraded to benzo (a) pyrene (BaP) in soil, when in soil, BaP initial concentration is 50mg/kg, in 42 days, the degradation rate of BaP is only 33.04%, 25.39% and 22.02% (the Sudan respectively, Li Peijun, Wang Xin etc.3 strain bacteriums are to the degraded of pyrene in soil and BaP and dynamics thereof. environmental science, 2007,28 (4): 913-917.).
But also have more research to show both at home and abroad, when existing when there being suitable degradation bacteria and provide favourable degradation condition, high ring polycyclic aromatic hydrocarbon also can effectively be degraded.Such as, ROBERTKANALY etc. once added BaP67mg/kg in certain pasture soil, crude oil 34g/kg, add necessary mineral matter simultaneously, result shows to utilize the indigenous microorganism in the soil of pasture, and the degradation rate of 150 days BaP reaches 95% (Biodegradationof [C14] Benzo [a] pyreneaddedinCrudeOiltoUncontaminatedsoil, AppliedandEnvironmentalMicrobiology, Nov.1997, p.4511-4515), M.CristinaRomero etc. adopt isolated filamentous fungi from the industrial pollution place of oil plant, adding hexadecane is cosubstrate, pH=6.5, when BaP initial concentration is 40mg/L, the degradation rate of 30 days BaP reaches 77.5-92.5% (Benzo [a] pyrenedegradationbysoilfilamentousfungi, JournalofYeastandFungalResearchVol.1 (2), pp.025-029, March2010), the people such as the Sudan study the degradation bacteria Mucorsp.SF06 of stationary state and Bacillussp.SB02 to the degraded of BaP in soil, when BaP concentration is 50mg/kg, pH=6.8, when water capacity is 55%, under the effect having Co metabolism, through 42 days, the bacteria-fungal mixing group of this stationary state reaches 95.3% (Biodegradationofbenzo [a] pyreneinsoilbyMucorsp.SF06andBacillussp.SB02co-immobiliz edonvermiculite to BaP degradation rate, JournalofEnvironmentalSciences.Vol.18, No.6, PP.1204-92006).Illustrate thus, by the bioavailability providing the advantage required for high ring polycyclic aromatic hydrocarbon biodegradation effectively can improve high ring polycyclic aromatic hydrocarbon, this is utilize microorganism remediation epipodium polycyclic aromatic hydrocarbon pollution to provide an effective and feasible technology path.
Utility model content
The purpose of this utility model is for the biological prosthetic difficult point of epipodium polycyclic aromatic hydrocarbon pollution, proposes corresponding counter-measure, provides a kind of complex biological treatment system device effectively can repairing epipodium polycyclic aromatic hydrocarbon pollution.
The difficult point that in following table 1, combing epipodium polycyclic aromatic hydrocarbon pollution is biological prosthetic, and give corresponding comprehensive counter-measure in the utility model complex biological treatment system device.
The difficult point that table 1 epipodium polycyclic aromatic hydrocarbon pollution is biological prosthetic and comprehensive counter-measure
The utility model relates to a kind of complex biological treatment system device repairing epipodium polycyclic aromatic hydrocarbon pollution, comprises 4 systems: geobiont shut-down system, intensified ventilation and monitoring system, gas purge system, medicament are prepared and dosing system.Geobiont shut-down system comprises mound base impervious layer, screen casing of bleeding (6), aeration equipment (9), gas detect mouth (12), pressure sensor (13), Temperature Humidity Sensor (14) and HDPE overlay film (15); Intensified ventilation and monitoring system comprise gas-liquid separator (20), vavuum pump (21), vacuum valve (4), exhaust tube (5), monitor and automatic control equipment and power distributing cabinet (22); Gas purge system comprises activated carbon adsorber (24), centrifugal blower (25), vacuum valve (4), power distributing cabinet (23); Medicament configuration comprises medicament dosing case (27) with dosing system, configures agitating device (28), dosing pump (29), dosing pump pedestal (30), medicament dosing distribution box (33), medicament dosing pipe (11), gate valve (10), flow control valve (31), flowmeter (32), medicament quantitatively drip and ooze dosing flexible pipe (8) and bacterium liquid configuration device.
Described a kind of complex biological treatment system device repairing epipodium polycyclic aromatic hydrocarbon pollution, its operating characteristic is as follows: medicament configures, and comprises the nutrient solution such as carbon, nitrogen, phosphorus that configuration is applicable to ratio, surfactant solution and indigenous microorganism bacterium liquid; Pulverize the bulk particle in contaminated soil by pretreatment, pretreated soil is deposited in the reparation district of laying impervious barrier; In the process of stacking, add the organic surface active agent of microbial nutrient solution, bacterium liquid and easily biological-degradable to soil heap body, the inappropriate soil of local pH is sprayed to the pH of buffer solution adjustment soil simultaneously; Intensified ventilation system is utilized to geobiont heap by the oxygen supply of continuous air extraction uniform ventilation in the process run; Add the organic surface active agent of microbial nutrient solution and easily biological-degradable continuously to soil heap body while ventilation oxygen supply; Continuous dosing indigenous microorganism bacterium liquid is increased in the rear half stage run; The operational effect of soil heap body is continued to monitor in whole service process, the ventilation requirement in stage run according to monitoring result and difference and the requirement to humidity, carbon dioxide controlled concentration, adjust the dosage of each medicament, and soil is piled under body is in the oxygen concentration of requirement, temperature and humidity condition; The whole overlay film Seal treatment of mound, avoids peculiar smell secondary pollution to environment to Atmospheric Diffusion and formation; The waste gas utilization gas purge system of extracting out realizes qualified discharge, prevents the secondary pollution to environment.
Described a kind of complex biological treatment system plant running process of repairing epipodium polycyclic aromatic hydrocarbon pollution can be divided into following four-stage, each phase characteristic is: the first stage remove on the one hand rapidly by ventilating pollutant in soil particle clearance air and soil particle surface easily volatile matter from pollutant (decrement phase), make the microorganism in soil adjust in addition on the one hand and adapt to new environment (plateau); Second stage is the pollutant removal phase based on biodegradation, obtains than biodegradation faster at this stage pollutant by the microorganism that is substrate with high ring polycyclic aromatic hydrocarbon and the relevant microorganism of Co metabolism; Phase III is the low concentration pollutant removal phase, be reduced to soon close to the concentration value of hangover phase in this stage epipodium polycyclic aromatic hydrocarbon pollutant concentration, and the degradation rate of epipodium polycyclic aromatic hydrocarbon pollutant reduces gradually, but still can maintain obvious rate of contaminant degradation by adding nutrient solution, organic surface active agent and new indigenous microorganism bacterium liquid continuously; The fourth stage later stage degradation adjusting stage, the hangover phase is entered in the degraded of this stage pollutant, the degradation rate of pollutant is slow, but strengthening the growth of microorganism that high ring polycyclic aromatic hydrocarbon is substrate and Co metabolism related microorganisms by adding nutrient solution, organic surface active agent and new indigenous microorganism bacterium liquid continuously, still can maintain certain rate of contaminant degradation.Fig. 6 described a kind ofly repairs high ring polycyclic aromatic hydrocarbon change in concentration feature in each stage soil of complex biological treatment system plant running process of epipodium polycyclic aromatic hydrocarbon pollution.
Described geobiont shut-down system, its feature is as follows: soil heap body base impervious layer is respectively HDPE antiseepage film (19), closely knit native impervious barrier (18) and cobble or blotter (17) from lower to upper, and screen casing (6) of wherein bleeding is embedded in cobble or blotter (17); Evenly arrange an aeration equipment (9) every 2 ~ 2.5m above soil heap body, the ventilation screen casing of aeration equipment (9) lower end stretches into soil horizon 0.8 ~ 1m; Every 250m
3soil arranges 3 gas detect mouths (12), 1 pressure sensor (13) and 1 Temperature Humidity Sensor (14); Soil stacking height is 2 ~ 3m; Soil heap body HDPE overlay film (15) covers completely, and overlay film four limit, mound bottom all uses overlay film compacting fixture (16) to cover pressure, prevents gas leakage.
Described intensified ventilation and monitoring system, operation characteristic is: adjust ventilation and relevant parameter respectively by the stage, indicates the scope in each parameter of the four-stage of plant running in following table 2.
Table 2 complex biological treatment system device ventilation and related parameter choosing
Described medicament dosing case (27), is characterized in that: Install and configure agitating device (28) in medicament dosing case (27); Arrange 2 medicament dosing casees (27) to be used alternatingly, for configuration and the storage of medicament simultaneously.
Described medicament quantitatively drips and oozes dosing flexible pipe (8), it is characterized in that: flexible pipe is provided with special apopore along the line, and spacing is less than 0.3m, controls water yield 1-4L/h; Quantitative oozes dosing flexible pipe (8) and is laid on above soil heap body by S type, be beneficial to the various medicament of dosing more equably.
Described configuration indigenous microorganism bacterium liquid, it is characterized in that: utilize contaminated soil to cultivate the indigenous microorganism grown wherein, namely get pending contaminated soil, lab analysis detects determines wherein relevant with Co metabolism containing the microorganism that can be substrate with high ring polycyclic aromatic hydrocarbon various microorganisms; Add nutrient solution and moisture to contaminated soil, constant ventilation oxygen supply, ensure temperature 25 DEG C ~ 30 DEG C, humidity 20% ~ 30%, cultivating after 2 ~ 5 weeks, by cultivating the microorganism stripping of growth in soil in water, making indigenous microorganism bacterium liquid.
The raw material in described nutrient solution carbon source, nitrogenous source and phosphorus source is respectively cerelose, nitrogenous fertilizer and phosphate fertilizer; C, the ratio range of N and P is (110 ± 22): (10 ± 1): (1 ± 0.2), and its concrete ratio can be determined according to the content of organic matter in contaminated soil, microbe species, humidity, nutrition content and other content of material etc. that can react with the nutriment added.
Described surfactant adopts Tryfac 5573, and consumption is 2g/ (m
3soil/sky).
The beneficial effect that the utility model is implemented: can apply as project scale, practical, operation process is full-automatic, can realize commercial applications; Effectively can remove the high ring polycyclic aromatic hydrocarbon in soil, and can prevent from causing secondary pollution; Treatment process is simple, engineering and operating cost is low, treatment effeciency is high, is a set of efficient, treatment system that economy, environmental disturbances are few, has good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the complex biological treatment system device floor map that the utility model repairs epipodium polycyclic aromatic hydrocarbon pollution;
Fig. 2 is the utility model contaminated soil biology heap generalized section, i.e. A-A ' profile of Fig. 1;
Fig. 3 is that the utility model intensified ventilation and watch-dog (1) form schematic diagram;
Fig. 4 is the utility model gas purifying equipment (2) composition schematic diagram;
Fig. 5 is the utility model medicament dosing device (3) composition schematic diagram;
Fig. 6 is high ring polycyclic aromatic hydrocarbon change in concentration feature in the utility model complex biological treatment system plant running process four-stage soil; Wherein, high ring polycyclic aromatic hydrocarbon concentration in C-contaminated soil, t-running time, C
0-Gao ring polycyclic aromatic hydrocarbon initial concentration, C
nheight ring polycyclic aromatic hydrocarbon concentration during-end of run, T
1-the first stage, T
2-second stage, T
3-the phase III, T
4-fourth stage, T
1a-decrement phase, T
1b-plateau.
In figure: intensified ventilation and watch-dog (1), gas purifying equipment (2), medicament dosing device (3), vacuum valve (4), exhaust tube (5), to bleed screen casing (6), contaminated soil (7), medicament quantitatively drips and oozes dosing flexible pipe (8), aeration equipment (9), gate valve (10), medicament dosing pipe (11), gas detect mouth (12), pressure sensor (13), Temperature Humidity Sensor (14), HDPE overlay film (15), overlay film compacting fixture (16), cobble or blotter (17), closely knit native impervious barrier (18), HDPE antiseepage film (19), gas-liquid separator (20), vavuum pump (21), monitoring and automatic control equipment and power distributing cabinet (22), power distributing cabinet (23), activated carbon adsorber (24), centrifugal blower (25), gas discharge outlet up to standard (26), medicament dosing case (27), configuration agitating device (28), dosing pump (29), dosing pump pedestal (30), flow control valve (31), flowmeter (32), medicament dosing distribution box (33).
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present utility model and treatment effect are described further, but embodiment of the present utility model is not limited thereto.
Embodiment: engineer applied is tested, adopts the utility model complex biological treatment system device process 500m
3containing the polycyclic aromatic hydrocarbons contaminated soil of epipodium.
Embodiment concrete operation step is as follows:
The first step, gets about 2m at every turn
3soil containing epipodium polycyclic aromatic hydrocarbon pollutant, determines wherein relevant with Co metabolism containing the microorganism that can be substrate with high ring polycyclic aromatic hydrocarbon various microorganisms in lab analysis; Add nutrient solution and moisture to contaminated soil, constant ventilation oxygen supply, ensureing temperature 28 DEG C, humidity 25%, after cultivating 2 weeks, by cultivating the microorganism stripping of growth in soil in water, making indigenous microorganism bacterium liquid.
Second step, get cerelose, nitrogenous fertilizer and phosphate fertilizer according to C: N: P=110: 10: 1 proportioning configuration nutrient solution, for subsequent use.Surfactant adopts Tryfac 5573, and consumption is 2g/ (m
3soil/sky).
3rd step, crosses the screen cloth of gross porosity footpath (aperture 5-10mm) by Polluted Soil, remove and fragmenting bulk particle, then pretreated pollution mound is transported to the restoring area that composite ventilated equipment is housed and tests.
4th step, before contaminated soil is banked up, checks the integrality of ventilation pipe network.Contaminated soil is placed according to experimental design size in the online portion of intact ventilation duct, with forklift, soil is floating in mound process, namely the soil layer that the 200mm that often banks up is thick evenly sprays one deck medicament (comprising nutrient solution, bacterium liquid, surfactant and water), makes soil volume water capacity be 20%-30%.Wherein mound is specifically of a size of: terrace with edge water table opening is 35m × 4.5m, and base square is 40m × 9.5m, and height is 2.0m, and mound cumulative volume is 500m
3.
5th step, lay medicament quantitatively to drip and ooze dosing flexible pipe: the medicament laying 3 internal diameter 12mm by S type on the top of mound quantitatively drips and oozes dosing flexible pipe, article 3, flexible pipe mutual spacing is about 1.8m, flexible pipe is furnished with specially quantify water hole, and is connected with medicament dosing device.Medicament dosing device comprises dosing pump (1.0m
3/ h) 2, about 1m
32, medicament dosing case, mixing pump 1, distribution box 1.
6th step, overlay film on mound, mound four limit all will all seal, and covers pressure with the rectangular slab of stone, prevents gas leakage.
7th step, mound installs aeration equipment: arrange an aeration equipment every 2.5m above soil heap body, comprise abat-vent and ventilation screen casing, ventilation screen casing internal diameter is 100mm, stretches into soil horizon 0.8m.
8th step, evenly lays 2 Temperature Humidity Sensors, 2 pressure sensors, 6 soil gas detects mouth in mound.
9th step, opens intensified ventilation equipment, starts mound drawing ventilation, monitors the concentration of pollutant in air quantity, temperature, humidity, pressure, emission gases and pollutant in soil over time simultaneously.In this test run process, the ventilation that sets successively is respectively 1100m 4 stages
3/ h, 750m
3/ h, 650m
3/ h, 500m
3/ h.
Tenth step, according to the humidity requirement of soil, according to fixed time interval (30min every day), oozes dosing flexible pipe keep the skin wet in soil by quantitatively dripping.Supplement the medicament of proper proportion to ensure good growth of microorganism environment simultaneously, make the hydrophobic contaminant stripping better in soil simultaneously.
11 step, according to sample analysis testing result, when mound pollutant in soil concentration reaches reparation desired value, the operation of arrestment, removes the sensor on mound, ventilation duct, HDPE overlay film and quantitatively drips and ooze dosing flexible pipe.
12 step, meets the requirements of soil and shifts out test site and re-use by reparation.
Embodiment soil gas testing result shows, O in the soil gas of the 22nd, 41,67 day three monitoring results of test
2percent by volume mean value be 21.1%, 21.4% and 20.8%, O in corresponding air
2percent by volume be 21.2%, 21.4% and 21.3%.The content of soil gas and atmospheric oxygen is basically identical, illustrates that in mound, oxygen supply is abundant.In addition, CO in the soil gas of three monitoring results
2percent by volume mean value be 0.14%, 0.13% and 0.12%, CO in corresponding air
2percent by volume be 0.05%, the CO in mound
2concentration is apparently higher than CO in air
2concentration, illustrates that the aerobic degradation of microorganism in mound is obviously movable.
Embodiment Soil K+adsorption result shows, and the high ring polycyclic aromatic hydrocarbon in soil is obtained in the short period of time degrades effectively.Concrete result of the test is in table 3, and after the degraded of 68 days, high ring polycyclic aromatic hydrocarbon all can all be degraded to reparation desired value.
High ring polycyclic aromatic hydrocarbon degradation situation in table 3 embodiment
Claims (4)
1. repair a complex biological treatment system device for epipodium polycyclic aromatic hydrocarbon pollution, it is characterized in that: comprise geobiont shut-down system, intensified ventilation and monitoring system, gas purge system, medicament prepare and dosing system; Wherein, geobiont shut-down system comprises mound base impervious layer, screen casing of bleeding (6), aeration equipment (9), gas detect mouth (12), pressure sensor (13), Temperature Humidity Sensor (14) and HDPE overlay film (15); Intensified ventilation and monitoring system comprise gas-liquid separator (20), vavuum pump (21), vacuum valve (4), exhaust tube (5), monitor and automatic control equipment and power distributing cabinet (22); Gas purge system comprises activated carbon adsorber (24), centrifugal blower (25), vacuum valve (4), power distributing cabinet (23); Medicament configuration comprises medicament dosing case (27) with dosing system, configures agitating device (28), dosing pump (29), dosing pump pedestal (30), medicament dosing distribution box (33), medicament dosing pipe (11), gate valve (10), flow control valve (31), flowmeter (32), medicament quantitatively drip and ooze dosing flexible pipe (8) and bacterium liquid configuration device.
2. a kind of complex biological treatment system device repairing epipodium polycyclic aromatic hydrocarbon pollution according to claim 1, it is characterized in that: the soil heap body base impervious layer of geobiont shut-down system is respectively HDPE antiseepage film (19), closely knit native impervious barrier (18) and cobble or blotter (17) from lower to upper, and screen casing (6) of wherein bleeding is embedded in cobble or blotter (17); Evenly arrange an aeration equipment (9) every 2 ~ 2.5m above soil heap body, the ventilation screen casing of aeration equipment (9) lower end stretches into soil horizon 0.8 ~ 1m; Every 250m
3soil arranges 3 gas detect mouths (12), 1 pressure sensor (13) and 1 Temperature Humidity Sensor (14); Soil stacking height is 2 ~ 3m; Soil heap body HDPE overlay film (15) covers completely, and cover layer four limit, mound bottom all uses overlay film compacting fixture (16) to cover pressure.
3. a kind of complex biological treatment system device repairing epipodium polycyclic aromatic hydrocarbon pollution according to claim 1, is characterized in that: Install and configure agitating device (28) in medicament dosing case (27); Arrange 2 medicament dosing casees (27) to be used alternatingly, for configuration and the storage of medicament simultaneously.
4. a kind of complex biological treatment system device repairing epipodium polycyclic aromatic hydrocarbon pollution according to claim 1, is characterized in that: medicament quantitatively drips and oozes dosing flexible pipe and be provided with special apopore along the line, and spacing is less than 0.3m, controls water yield 1-4L/h; Quantitative oozes dosing flexible pipe (8) and is laid on above soil heap body by S type, be beneficial to the various medicament of dosing more equably.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105935683A (en) * | 2016-06-22 | 2016-09-14 | 中国石油天然气集团公司 | Ectopic bioremediation device and method for pollutants |
| CN106111681A (en) * | 2016-06-17 | 2016-11-16 | 清华大学 | A kind of repair system preventing SOIL GAS from invading |
| CN108246797A (en) * | 2017-12-27 | 2018-07-06 | 江苏盖亚环境科技股份有限公司 | The heterotopic biological heap repair system of one heavy metal species-organic double compound contaminated soil |
| CN109365498A (en) * | 2018-12-20 | 2019-02-22 | 北京市环境保护科学研究院 | A kind of formula and soil treatment device reducing P in soil AHs biological effectiveness |
| CN112007946A (en) * | 2020-07-28 | 2020-12-01 | 南京大学环境规划设计研究院股份公司 | Ectopic bioremediation device for pollutants |
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2015
- 2015-04-02 CN CN201520196569.XU patent/CN205008385U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111681A (en) * | 2016-06-17 | 2016-11-16 | 清华大学 | A kind of repair system preventing SOIL GAS from invading |
| CN105935683A (en) * | 2016-06-22 | 2016-09-14 | 中国石油天然气集团公司 | Ectopic bioremediation device and method for pollutants |
| CN108246797A (en) * | 2017-12-27 | 2018-07-06 | 江苏盖亚环境科技股份有限公司 | The heterotopic biological heap repair system of one heavy metal species-organic double compound contaminated soil |
| CN109365498A (en) * | 2018-12-20 | 2019-02-22 | 北京市环境保护科学研究院 | A kind of formula and soil treatment device reducing P in soil AHs biological effectiveness |
| CN112007946A (en) * | 2020-07-28 | 2020-12-01 | 南京大学环境规划设计研究院股份公司 | Ectopic bioremediation device for pollutants |
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Effective date of registration: 20190816 Address after: 430000 Financial Background Service Center Base at 77 Guanggu Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Zhonghuan Circulating Environment Technology Co., Ltd. Address before: 100102 Beijing Chaoyang District City, Fu Tong East Street, No. 6 Fangheng International Center B block 1008 Patentee before: ESD (BEIJING) ENVIRONMENTAL TECHNOLOGY CENTER |