NL2026659B1 - Plant growth medium based on residue from high temperature thermal oxidation of oily solid wase - Google Patents
Plant growth medium based on residue from high temperature thermal oxidation of oily solid wase Download PDFInfo
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- 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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
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- 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
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
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- 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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
a PLANT GROWTH MEDIUM BASED ON RESIDUE FROM HIGH TEMPERATURE : THERMAL OXIDATION OF OILY SOLID WASTE A piant growth medium based on a residue from high temperature thermal oxidation of oily solid waste is made by adjusting the water content in the residue from high temperature thermal oxidation of the oily solid waste to be 20 to 30% using a weak acid wastewater generated from : removal of dust in high temperature thermal oxidation exhaust gas, and mixing the residue after the water content adjustment with crushed straw, humic acid, and phosphate. A weight ratio of ; the residue : the crushed straw : the humic acid : the phosphate is within a range of 45-80:2- 7:0.5-5:0.5—4. Accordingiy, the residue from high temperature thermal oxidation of oily solid waste is enabled to be used for growing plants like soil, and utilization ofwastewater generated from treatment of high temperature thermal oxidation exhaust gas is also enabled. The medium IS can satisfy the demand of saline tolerant plants growth.
Description
PLANT GROWTH MEDIUM BASED ON RESIDUE FROM HIGH TEMPERATURE | THERMAL OXIDATION OF OILY SOLID WASTE | Technical Field | The present disclosure relates to the field of recycling of oily solid waste from oil and/or gas | fields, and in particular to a plant growth medium based on a residue from high temperature | thermal oxidation of the oily solid waste.
Background | 0 During the production of oil, a large amount of oily solid waste is generated, such as, oil-based muds, polysulfonate drilling muds, a mixture consisting of crude oil and soil, scums from | wastewater treatment, and tank bottom sludges.
After being subjected to volume reduction, | pyrolysis, and high temperature thermal oxidation processes, the oily solid waste can be made | harmless and recycled.
However, a residue may be produced in a large amount from the high temperature thermal oxidation process during the treatment of such oily solid waste as they are J often treated in a centralized manner.
Disadvantageously, although heavy metal contents in the | residue can be within the required concentration limits of the heavy metals in soils, the residue | is of high alkalinity (at a pH of 9.5 to 10). Pollutants such as oil contained in the oily solid waste can be digested completely by the high | temperature processing.
However, the resulting residue has a very low content of organics and | a low fertility.
On the other hand, treatment of exhaust gas from the thermal oxidation process | is usually performed using a water spray, which may substantially reduce the particle, organics and sulfur dioxide contents in the exhaust to ensure compliance with the exhaust emission standards.
However, intimate contact between the water and the exhaust may lead to wastewater | having certain contents of suspended particles and acidic components (with a pH of 3.0 to 5.0) | and which may be less available for recycling. | CN 1502673 A discloses a saline soil remediation material, consisting essentially of 10 to 20 wt. % of an algae degradation product, 10 to 20 wt. % of a fish protein extract, 5 to 15 wt. % of | a polyaspartic acid salt, 20 to 60 wt. % of a shell powder, and 10 to 30 wt. % of a carapace | powder.
The material can be capable of balancing the various trace elements in the soil, 9 improving physical pore structure and microbial community structure in the soil and the fertility of the soil, and thus increasing the quality and yield of crops.
The material can also ameliorate | compaction and hardening of the soil caused by continuous cropping. à
} CN 105969375 A discloses a remediation agent for low alkalinity soil, formed from a starting material composition comprising 23 to 25 weight parts of an activated sludge, 3 to 4 weight 5 parts of a ganoderma lucidum spore powder, 5 to 7 weight parts of diammonium phosphate, 2.5 to 2.6 weight parts of alginic acid, 16 to 17 weight parts of a residue of soya, 2.5 to 2.6 weight | parts of calcium acetate, 57 to 60 weight parts of polluted pig manure, 13 to 14 weight parts of | a paper-making black liquid, 3.2 to 3.3 weight parts of a 10% nitric acid solution, 8 to 10 weight parts of an alum slurry and a suitable amount of water.
Adsorption and passivation effects of | the remediation agent can reduce hazards of dusts on soil surfaces and of heavy metal emissions. | A combination of the organic humus and the inorganic available nutrients can improve the soil fertility, and can facilitate the growth of greening plants under the effect of activities of soil microorganisms.
The agent enables an improved fertility of green belt soils and a reduced | pollution to the soils.
CN 106986724 A discloses a remediation agent for saline soil and a preparation method therefor, | the agent prepared from a starting material composition which comprises a waste from coal combustion flue gas desulfurization, mixed microorganisms, a porous carrier, a mixed botanical | powder, oil cake, and humic acid.
The method for preparing the agent comprises mixing the | composition with water to subject to fermentation by way of a composting process, during | which the temperature inside the compost heap is controled within a range of 75 to 85° C, and | the humidity thereinside is controlled within a range of 60 to 70%. This method is simple and | low cost, and can be realized readily.
The remediation agent prepared by this method has high à stability.
Also, the agent can effectively improve physical and chemical properties of the saline | soil, and reduce the pH thereof and the contents of soluble salts therein, as well as the degree ; of soil alkalization. | CN 101182418 B discloses a method for improving a desertified soil, comprising subjecting a soil remediation agent prepared from humic acid and a microbial agent to be buried in the soil | used for growing Glycyrrhiza uralensis after the beginning of spring and before summer; and | managing the soil for 1 to 2 years.
The method can increase the organics content in the soil rapidly, but can also increase the number of microbial species and the microbial population, So, à/ the quality of ecological environment of the soil can be improved, realizing the purpose of 9 improving the desertified soil. : CN 105368454 A discloses a remediation agent for efficiently remedying saline soil, consisting | of calcium oxide, silica, aluminium oxide, sulfur trioxide, iron oxide, magnesium oxide, titanium dioxide, potassium oxide, manganese oxide, sodium oxide, and water.
The remediation agent is environmentally friendly since natural minerals are used as main starting | — materials thereof.
Moreover, when in use, the agent can enable the pH level of the remedied | soil to be maintained at about neutral values, which will not adversely affect the growth of 7 plants and may cause no secondary pollution to surrounding environments.
The soil having | been subjected to remediation of the agent exhibits high preservation capacity of water and | fertility.
So, the agent can be used to remedy sandy or arid soil.
In addition, the soil having been | subjected to remediation of the agent is insoluble in water before and after drying, preventing | soil erosion, masking malodor of the soil, and allowing hazardous substances to be immobilized | inside the soil, which can prevent them from coming out to pollute surrounding environments. | CN 106190168 A discloses a remediation agent for saline soil and a preparation method thereof, | wherein the agent is prepared from a starting material composition which consists of 20 to 25 # weight parts of humic acid, 10 to 15 weight parts of pomace, 5 to 10 weight parts of corn grit, 4 to 12 weight parts of soybean dreg, 3 to 9 weight parts of rapeseed dreg, 8 to 13 weight parts | of methyl phenol, 3 to 7 weight parts of 2,6-dimethoxyphenol, 8 to 12 weight parts of bentonite, | 4to 9 weight parts of oxalic acid, 3 to 7 weight parts of ammonium dihydrogen phosphate, 3 to | 10 weight parts of potassium nitrate, 4 to 8 weight parts of calcium sulfate, 2 to 6 weight parts | of magnesium chloride, 2 to 5 weight parts of sodium bismuthate, 3 to 6 weight parts of sodium | alginate, 1 to 5 weight parts of urea, 3 to 10 weight parts of calcium cyanamide, S to 10 weight | parts of microorganism inoculants, 2 to 6 weight parts of an antioxidant, and 3 to 8 weight parts | of a stabilizing agent.
The agent has reliable properties, can improve the texture of saline soils, | and is environmentally friendly. | CN 107384413 A discloses a method for preparing a saline soil improvement agent.
Self-made | hydroxy calcium phosphate serves as an active ingredient of the agent, so that carbonate ions ] present in saline soil replace phosphate ions in the hydroxy calcium phosphate.
This can cause | immobilization of the carbonates in the soil and prevent the soil from alkalization.
Moreover, hydroxy calcium phosphate as a calcium containing compound can replace sodium ions in saline soil colloid, further preventing soil alkalization.
The pH level of the saline soil can be | reduced by organic acids produced by fermentation and degradation of a mixture, and the | produced organic acids can be attached to surfaces of the hydroxy calcium phosphate.
The complexing ability of the organic acids allows the agent to have an increased enrichment of salts in the soil, thereby improving salt removal rates of the agent.
The described agent can have wide application prospects.
CN 107365205 A discloses a fertilizer for remedying and improving saline soil, produced from | a starting material composition which consists of 20 to 65 weight parts of a soil remediation agent, 20 to 70 weight parts of a soil improvement agent, 30 to 60 weight parts of an organic fertilizer, 1 to 5 weight parts of a microorganism, 1 to 9 weight parts of a nitrogenous fertilizer, | I to 6 weight parts of a phosphatic fertilizer, and 0.5 to 4 weight parts of a potassic fertilizer. 9 The described fertilizer enables adsorption and decomposition of salts and alkalies in the soil, | and the pH level thereof to be maintained within a range of 5.5 to 7.5. The fertilizer also exhibits | high preservation capacity of water and fertility.
CN 107674677 A discloses a remediation agent for saline soil and a preparation method thereof,
the agent consisting of 61 to 99% of a maleic anhydride polymer, 1 to 10% of y-polyglutamic | acid and a balance of water, The agent is low cost and can be easily produced.
Moreover, with | | the agent, the saline soil can be remedied rapidly and efficiently, so that it can become arable | and produce a bumper crop. | CN 109180313 A discloses a remediation agent for agricultural soil and a preparation method | thereof, the agent prepared from a starting material composition which comprises 40 to 60 | weight parts of a modified and activated husk powder, 10 to 30 weight parts of boric acid, 10 : to 30 weight parts of borax, 10 to 30 weight parts of a boron-magnesia fertilizer, 20 to 40 | weight parts of potassum fulvic acid, 15 to 30 weight parts of chlormequat chloride, 20 to 40 | weight parts of paclobutrazol, 30 to 50 weight parts of monopotassium phosphate, 20 to 40 | weight parts of compound sodium nitrophenolate, 40 to 60 weight parts of biomass material, and 40 to 60 weight parts of calcium bentonite.
The remediation agent can efficiently remedy and improve the soils, reduce environmental pollution, and improve food safety as well as yield | and quality of crops. | CN 108994061 A discloses a soil remediation agent and method, the agent comprising 35 to 62 | weight parts of a chelating agent, 12 to 29 weight parts of a surfactant, 19 to 33 weight parts of | an organic solvent, 3 to 5 weight parts of alkyl glucoside, and 3 to 5 weight parts of a metal salt. | When in use, the agent is mixed with soil in a preset ratio and then rinsed several times with water, followed by ventilation and heating.
The method utilizing the agent can remedy soils polluted by multiple pollutants in a short time period, and exhibits a removal rate of 98% or greater for pollutants such as cadmium and nitrobenzene, | CN 109837090 A discloses a remediation agent for saline soil, produced from a starting : material composition which consists of 25 to 35 weight parts of a ferrous fumarate-based | organic acid copolymer, 5 to 10 weight parts of an algae powder, 15 to 20 weight parts of a |
| microbial fertilizer, 10 to 15 weight parts of calcium lignosulphonate, 5 to 10 weight parts of | humic acid, and 50 to 60 weight parts of water.
The saline soil can be remedied safely, rapidly, | and efficiently by using the agent. |
5 Summary The present disclosure aims to solve the above problem existed in the prior art that the residue | produced from high temperature thermal oxidation during the treatment of the oily solid waste is less available for recycling. | The disclosure relates to the field of recycling of oily solid waste from oil and/or gas fields, and | in particular to a plant growth medium based on a residue from high temperature thermal | oxidation of the oily solid waste, Accordingly, the present disclosure enables the residue from | high temperature thermal oxidation of the oily solid waste to be used for growing plant like soil.
The plant growth medium according to the disclosure is made by adjusting the water content in | the residue from high temperature thermal oxidation of the oily solid waste to be 20 to 30% by | using a weak acid wastewater generated from removal of dust in high temperature thermal | oxidation exhaust gas, and mixing the residue after the water content adjustment with crushed 1 straw, humic acid, and phosphate; wherein a weight ratio of the residue : the crushed straw : the | humic acid : the phosphate is within a range of 45-80:2-7:0.5-5:0.5-4, and the residue has a | water content of 3 to 5% before the water content adjustment. | A preferable weight ratio of the residue : the crushed straw : the humic acid : the phosphate is | within a range of 55-70:3-5:1-3:1-2. | The oily solid waste may be one or more of drill cuttings, a waste drilling sludge having a water | content of 50 to 70% after dehydration, a mixture consisting of crude oil and soil, a settled sludge in oil storage tanks having a water content of 50 to 70% after dehydration, and scums from wastewater treatment having a water content of 50 to 70% after dehydration, : The weak acid wastewater generated from removal of dust in high temperature thermal oxidation exhaust gas may have a suspended matter content of 30 to 80 mg/L and a pH value of3to 5. The crushed straw may have an average size of 1 to 3 millimeters.
The phosphate may be one or more of calcium superphosphate, diammonium hydrogen phosphate, and potassium dihydrogenphosphate.
The plant growth medium of the present disclosure may have a porosity of 20 to 35%. The | medium, after being left to stand for 3 to 6 months after production, is suitable for the growth | of saline tolerant plants. | The above-described embodiments provide several advantages.
- The embodiments make it possible to directly use the residue from high temperature thermal | oxidation of the oily solid waste as the soil for growing saline tolerant plants, such as, Chinese | Iris(Jris lactea Pall. var. chinensis (Fisch.) Koidz), Iris tectorum(Jris tectorum Maxim.), blanket flower(Gaillardia pulchella Foug), and alfalfa(Medicago Sativa Linn) by subjecting the | residue to a water content adjustment with a weak acid wastewater generated from removal of | dust in high temperature thermal oxidation exhaust gas and to subsequent mixing with crushed | straw, humic acid, and phosphate. : - The embodiments aim at the residue from high temperature thermal oxidation of the oily solid | waste, such as, drilling muds, a mixture consisting of crude oil and soil, and oily sludges. With | the embodiments, the residue can be used for growing plants like soil, and utilization of | wastewater from treatment of high temperature thermal oxidation exhaust gas is achieved. | Detailed Description | Embodiments of the present disclosure will be further described in detail with reference to | examples, but the present disclosure is not limited to these examples.
Example 1 A mixture of waste drilling sludge after dehydration (having a water content of 50%) and dril! | cuttings (mixed in any ratio) was subjected to high temperature thermal oxidation treatment to produce a residue having a water content of 3%. 55 kg of the residue was taken, and filtrated | dust-flushing water having a suspended matter content of 80 mg/L and a pH value of 5 was added thereto until the water content of the residue reached 20%. Thereafter, the residue was uniformly mixed with 5 kg of crushed straw having an average size of 2 millimeters, 2 kg of humic acid, and 2 kg of calcium superphosphate to obtain a plant growth medium. After | standing for 3 months, the obtained plant growth medium was used for growing Chinese Iris(Zris lactea Pall. var. chinensis (Fisch.) Koidz). A comparison between the medium and the local soil is shown in Table 1. | Table I Plant growth results Porosity/% Emergence rate/% months from the emergence/cm
7 ; Local soil 28 97 17.4 | Medium made in | The comparison between the medium and the local soil on the emergence rate and the height of | 5 seedlings after 4 months from the emergence shows that the medium has produced good results. | Example 2 A sludge from wastewater treatment with a water content of 60% after dehydration was subjected to high temperature thermal oxidation treatment to produce a residue having a water content of 5%. 65 kg of the residue was taken, and filtered dust-flushing water having a | suspended matter content of 50 mg/L and a pH value of 3 was added thereto until the water | content of the residue reached 25%. Thereafter, the residue was uniformly mixed with 4 kg of crushed straw having an average size of 3 millimeters, 3 kg of humic acid, and 1 kg of calcium superphosphate to obtain a plant growth medium.
After standing for 4 months, the obtained | plant growth medium was used for growing blanket flower(Gaillardia pulchella Foug.). A comparison between the medium and the local soil is shown in Table 2. Table 2 Plant growth results Height of seedlings after 5 months from the emergence/cm | Local soil 32 98 20.4 | Medium made in Example 3 | A mixture of crud oil and soil was subjected to high temperature thermal oxidation treatment | to produce a residue having a water content of 4%. 60 kg of the residue was taken, and filtered dust-flushing water having a suspended matter content of 70 mg/L and a pH value of 4 was added thereto until the water content of the residue reached 30%, Thereafter, the residue was | uniformly mixed with 2 kg of crushed straw having an average size of | millimeters, 4 kg of 3 humic acid, and 1 kg of calcium superphosphate to obtain a plant growth medium.
After standing for 6 months, the obtained plant growth medium was used for growing saline tolerant | alfalfa (Medicago Sativa Linn). A comparison between the medium and the local soil is shown in Table 3. : Table 3 Plant growth results |
Height of seedlings after 2 Porosity/% Emergence rate/% months from the emergence/cm Local soil 35 99 12.8 à Medium made in 32 96 10.3 Example 3 ; Example 4 | An oily sludge settled in tanks having a water content of 70% after dehydration was subjected | to high temperature thermal oxidation treatment to produce a residue having a water content of | 4%. 70 kg of the residue was taken, and filtered dust-flushing water having a suspended matter content of 30 mg/L and a pH value of 5 was added thereto until the water content of the residue | reached 25%. Thereafter, the residue was uniformly mixed with 4 kg of crushed straw having | an average size of 3 millimeters, 3 kg of humic acid, and 1 kg of calcium superphosphate to obtain a plant growth medium.
After standing for 3 months, the obtained plant growth medium was used for growing Iris tectorum{/ris fectorum Maxim.). A comparison between the medium | and the local soil is shown in Table 4. Table 4 Plant growth results | } Height of seedlings after 2 | Porosity/% Emergence rate/% months from the emergence/cm | Local soil 32 99 12,4 Medium made in 94 11.6 Example 4
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910985449.0A CN110612885B (en) | 2019-10-17 | 2019-10-17 | Oily solid waste high-temperature thermal oxidation residue-based green plant soil |
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| CN110612885B (en) * | 2019-10-17 | 2022-07-08 | 西安石油大学 | Oily solid waste high-temperature thermal oxidation residue-based green plant soil |
| CN114158304B (en) * | 2021-12-22 | 2023-06-09 | 山东省农业科学院 | Saline-alkali soil crop seeding micro-habitat regulation and control hardening method |
| CN114149281A (en) * | 2021-12-24 | 2022-03-08 | 中国热带农业科学院椰子研究所 | Sand soil modifier with phosphorus stabilization effect and preparation method thereof |
| WO2023193419A1 (en) * | 2022-04-08 | 2023-10-12 | 天津大学 | Oil-containing sludge treatment method, soil remediation method |
| CN115176668B (en) * | 2022-08-01 | 2023-07-25 | 中国农业科学院都市农业研究所 | Regenerated material of plant source waste as well as preparation method and application thereof |
| CN115443878B (en) * | 2022-09-22 | 2024-06-04 | 西安工业大学 | Vetiver grass planting matrix prepared from oily sludge pyrolysis residues and process system thereof |
| CN118084586B (en) * | 2024-04-17 | 2024-07-30 | 大禾(上海)生态科技有限公司 | Method for improving coastal viscous saline-alkali soil low-yield farmland to reach high standard by using fulvic acid composition |
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2019
- 2019-10-17 CN CN201910985449.0A patent/CN110612885B/en active Active
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2020
- 2020-08-05 WO PCT/CN2020/107112 patent/WO2021073207A1/en active Application Filing
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| WO2021073207A1 (en) | 2021-04-22 |
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| NL2026659A (en) | 2021-06-07 |
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