CN110835211A - Method for treating sludge containing chemical agent - Google Patents
Method for treating sludge containing chemical agent Download PDFInfo
- Publication number
- CN110835211A CN110835211A CN201911057649.6A CN201911057649A CN110835211A CN 110835211 A CN110835211 A CN 110835211A CN 201911057649 A CN201911057649 A CN 201911057649A CN 110835211 A CN110835211 A CN 110835211A
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- CN
- China
- Prior art keywords
- sludge
- cogongrass
- shenzhou
- seedlings
- percent
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The invention relates to a method for treating sludge containing chemical agents, which solves the problem that the sludge cannot be used for planting trees or qualified soil for engineering backfilling in a short time. The processing steps of the invention are as follows: leveling yard sludge into sludge blocks, crushing the sludge blocks to a particle size of 0.3-0.7 cm, simultaneously adding a mixture of pig manure and crushed stalks, planting Shenzhou cogongrass seedlings, broadcasting a biological organic fertilizer after the Shenzhou cogongrass seedlings are planted for 1 month, cutting the Shenzhou cogongrass seedlings when the Shenzhou cogongrass seedlings grow to about 1-1.5 m, keeping piles for 0.3-0.7 cm, broadcasting a multifunctional biological organic fertilizer, and so on until the organic matter content of soil reaches more than 1%, and enabling the organic matter content to reach more than 1% in a short period. The contents of lubricating oil, sealing grease, swelling agent and other chemical agents in the treated subway sludge are as follows: respectively account for 0.02 percent, 0.003 percent, 0.24 percent and 0.01 percent of the total weight.
Description
Technical Field
The invention relates to a method for treating sludge containing chemical agents, in particular to a method for treating subway sludge.
Background
The subway sludge is a new pollution source formed by the fact that various engineering machines mainly use lubricating oil, sealing grease, swelling agent and other chemical agents to facilitate engineering construction and pollute the soil on a working surface in the excavation process of a shield machine in urban subway construction projects. The components of the sludge are different and complicated. The common points are as follows: the harmful substances are few, and the resource utilization value is very low. The storage yard of the utility model not only occupies a large amount of land resources, but also pollutes the surrounding environment (air, water and soil). Can not plant trees or be used for qualified soil for project backfilling.
Disclosure of Invention
The invention aims to provide a treatment method capable of reducing harmful substances in sludge, which can enable the organic matter content to reach more than 1% in a short time and become a sludge treatment method containing biological bacteria preparation for planting trees or qualified soil for engineering backfilling.
The invention is realized by the following steps:
the invention relates to a method for treating sludge containing chemical agents, which comprises the following treatment steps:
1) firstly, separating solid impurities from sludge, and then arranging a sludge storage yard: leveling the yard sludge into sludge plots,
2) crushing sludge to be treated on the surface layer to be treated to the particle size of 0.3-0.7 cm by using a crushing and crushing integrated machine, simultaneously adding a mixture of pig manure and crushed straw, adding 15 kg of the mixture of pig manure and crushed straw per cubic sludge, stirring, watering to keep the water content of the treated sludge at 45% -60%, detecting the water content every day,
3) turning the soil by a turning machine once every 1-3 days, covering the sun-proof and rain-proof cloth after turning the material every time, wherein 8-12 days is a first period,
4) planting Shenzhou cogongrass seedlings in the sludge land parcels after the first-stage treatment,
5) and (3) broadcasting a biological organic fertilizer 1 month after planting the Shenzhou cogongrass, cutting the Shenzhou cogongrass when the Shenzhou cogongrass grows to 1-1.5 m, keeping the pile for 0.3-0.7 cm, broadcasting a multifunctional biological organic fertilizer, and the like until the organic matter contained in the soil reaches more than 1%, and finishing the treatment of the subway sludge.
The thickness of the sludge land is 0.8-1.2 m, and the length and the width of the sludge land form a rectangle.
In the mixture of the pig manure and the crushed straw, the weight ratio of the pig manure to the straw is 1: 30.
The plant spacing and the row spacing of the Shenzhou cogongrass seedlings are 30cm and 60 cm.
The bio-organic fertilizer is a Xinze brand organic fertilizer produced by Shandong Xinze biological science and technology Limited company or a Zhonghua brand organic fertilizer produced by Hubei Zhonghua fertilizer Limited company, 300 kilograms of bio-organic fertilizer is applied to each mu 1 month after the Shenzhou cogongrass is planted, and 200 kilograms of bio-organic fertilizer is applied to each mu after each pile is left.
The invention has the following advantages:
the invention can eliminate harmful substances in the subway sludge, activate the sludge, namely increase the diversity of microbial communities in the sludge (the mass fraction of organic matters is 48, the total nutrients are 7.5, and the pH value is 8.1), and ensure that the organic matter content of the sludge reaches more than 1 percent in a short time, so the sludge becomes qualified soil for planting trees or engineering backfilling. And the standard of NY 525-2012 of the department of agriculture is met. The contents of lubricating oil, sealing grease, swelling agent and other chemical agents in the treated subway sludge are as follows: respectively account for 0.02 percent, 0.003 percent, 0.24 percent and 0.01 percent of the total weight. The qualified soil which can be used for planting trees or engineering backfilling is formed.
Detailed Description
Example 1:
the subway sludge contains relatively few harmful substances in the waste soil to be treated, but the content of the harmful substances is high, and the removal of the harmful substances is difficult to a certain extent. It is a "dead soil" lacking activity because of contamination by harmful substances such as lubricating oil, sealing grease, swelling agent, etc., and washing during transportation. The organic content is extremely low. Not only needs to eliminate harmful substances in the subway sludge, but also needs to activate the sludge, namely, increase the diversity of microbial communities in the sludge, and further needs to enable the organic matter content to reach more than 1% in a short time. The contents of lubricating oil, sealing grease, swelling agent and other chemical agents in the subway sludge before treatment are as follows: respectively account for 0.4 percent, 0.2 percent, 2.4 percent and 0.1 percent of the total weight.
The processing steps are as follows:
1. firstly, impurities in pollutants to be treated are separated, and then yard arrangement is carried out: the sludge in the storage yard is leveled as much as possible, the thickness of the sludge is about 1 meter, and the length and the width of the sludge are 60 meters multiplied by 40 meters.
2. The sludge to be treated on the surface layer is crushed to about 0.5cm, and a mixture of pig manure and crushed straw and stalk (the proportion is 1:30) is added according to 15 kg per cubic sludge and stirred. Watering to keep the water content of the treated pug at 50%, and detecting the water content every day
3. Turning the soil by a turning machine once every 2 days, and covering after turning every time (sun-proof and rain-proof). The whole period is finished in 10 days.
4. Planting Shenzhou cogongrass in the sludge land after the first-stage treatment, wherein the plant spacing is 30cm, the row spacing is 60cm, and each sludge field is about 700 plants.
5. 1 month after planting the Shenzhou cogongrass, spreading 300 kilograms of multifunctional biological organic fertilizer per mu; when the length is 1 to 1.5 meters (about 2 months after planting), 200 kilograms of multifunctional bio-organic fertilizer is scattered per mu after the Shenzhou cogongrass (the pile is left about 5 cm) is cut off. And after 2 months, cutting off the Shenzhou cogongrass (the pile is left about 5 cm), and broadcasting 200 kilograms of the multifunctional biological organic fertilizer per mu. After 5 months of planting the Shenzhou cogongrass, the soil contains more than 1% of organic matters by testing with a handheld soil nutrient rapid tester. At this time, the subway sludge treatment is completed.
The invention eliminates harmful substances in the subway sludge, activates the sludge, namely increases the diversity of microbial communities in the sludge (the mass fraction of organic matters is 48, the total nutrients are 7.5, and the pH value is 8.1), and enables the organic matter content to reach more than 1% in a short time, so that the sludge becomes qualified soil for planting trees or engineering backfilling. Meets the NY 525-2012 standard of the Ministry of agriculture.
The contents of lubricating oil, sealing grease, expanding agent and other chemical agents in the treated subway sludge are respectively 0.02 percent, 0.003 percent, 0.24 percent and 0.01 percent of the total weight of the subway sludge. Compared with the prior treatment which respectively accounts for 0.4 percent, 0.2 percent, 2.4 percent and 0.1 percent by weight, the treatment effect is good, and the content of organic matters in the soil reaches more than 1 percent after 5 months after the cultivation of the Shenzhou cogongrass. The survival conditions of the microorganisms in the soil are stable, and the soil is harmless.
Claims (5)
1. The method for treating the sludge containing the chemical agent is characterized by comprising the following treatment steps:
1) firstly, separating solid impurities from sludge, and then arranging a sludge storage yard: leveling the yard sludge into sludge plots,
2) crushing sludge to be treated on the surface layer to be treated to the particle size of 0.3-0.7 cm by using a crushing and crushing integrated machine, simultaneously adding a mixture of pig manure and crushed straw, adding 15 kg of the mixture of pig manure and crushed straw per cubic sludge, stirring, watering to keep the water content of the treated sludge at 45% -60%, detecting the water content every day,
3) turning the soil by a turning machine once every 1-3 days, covering the sun-proof and rain-proof cloth after turning the material every time, wherein 8-12 days is a first period,
4) planting Shenzhou cogongrass seedlings in the sludge land parcels after the first-stage treatment,
5) and (3) broadcasting a biological organic fertilizer 1 month after planting the Shenzhou cogongrass, cutting the Shenzhou cogongrass when the Shenzhou cogongrass grows to 1-1.5 m, keeping the pile for 0.3-0.7 cm, broadcasting a multifunctional biological organic fertilizer, and the like until the organic matter contained in the soil reaches more than 1%, and finishing the treatment of the subway sludge.
2. The method according to claim 1, wherein the sludge mass has a thickness of 0.8 to 1.2 m and a rectangular shape in length and width.
3. The method of claim 1, wherein the mixture of pig manure and crushed straw is in a weight ratio of 1: 30.
4. The method according to claim 1, wherein the distance between the seedlings of Hibiscus cogongrass is 30cm and the distance between the seedlings of Hibiscus cogongrass is 60 cm.
5. The method for treating sludge containing chemical agents according to claim 1, wherein the bio-organic fertilizer is Xinze brand produced by Shandong Xinze Biotech Co., Ltd or Zhonghua brand produced by Hubei Zhonghua Orient Fertilizer Co., Ltd, 300 kg of bio-organic fertilizer is applied per mu 1 month after planting Hibiscus syriacus, and 200 kg of bio-organic fertilizer is applied per mu after each pile is left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057649.6A CN110835211A (en) | 2019-11-01 | 2019-11-01 | Method for treating sludge containing chemical agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911057649.6A CN110835211A (en) | 2019-11-01 | 2019-11-01 | Method for treating sludge containing chemical agent |
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| CN110835211A true CN110835211A (en) | 2020-02-25 |
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| CN201911057649.6A Pending CN110835211A (en) | 2019-11-01 | 2019-11-01 | Method for treating sludge containing chemical agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621040A (en) * | 2022-03-16 | 2022-06-14 | 苏州金螳螂园林绿化景观有限公司 | Method for preparing organic fertilizer by utilizing production household garbage and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947544A (en) * | 2010-08-26 | 2011-01-19 | 胜利油田胜利勘察设计研究院有限公司 | Biostimulation method for remediation of oil-polluted soil |
| CN103004319A (en) * | 2012-12-18 | 2013-04-03 | 上海老港固废综合开发有限公司 | Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards |
| CN107513509A (en) * | 2017-09-01 | 2017-12-26 | 郑长明 | A kind of method of improved soil saline alkali |
| CN108323262A (en) * | 2018-01-31 | 2018-07-27 | 潍坊友容实业有限公司 | Sandy method salt-soda soil plantation orchard grass and improve clay fertilizer situation |
| CN109220036A (en) * | 2018-09-21 | 2019-01-18 | 兴安盟博川农业科技有限公司 | A kind of salt-soda soil comprehensive processing method |
| CN110092554A (en) * | 2019-04-28 | 2019-08-06 | 陕西同泽人居工程科技有限公司 | A kind of processing method about oilfield drilling spare |
-
2019
- 2019-11-01 CN CN201911057649.6A patent/CN110835211A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947544A (en) * | 2010-08-26 | 2011-01-19 | 胜利油田胜利勘察设计研究院有限公司 | Biostimulation method for remediation of oil-polluted soil |
| CN103004319A (en) * | 2012-12-18 | 2013-04-03 | 上海老港固废综合开发有限公司 | Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards |
| CN107513509A (en) * | 2017-09-01 | 2017-12-26 | 郑长明 | A kind of method of improved soil saline alkali |
| CN108323262A (en) * | 2018-01-31 | 2018-07-27 | 潍坊友容实业有限公司 | Sandy method salt-soda soil plantation orchard grass and improve clay fertilizer situation |
| CN109220036A (en) * | 2018-09-21 | 2019-01-18 | 兴安盟博川农业科技有限公司 | A kind of salt-soda soil comprehensive processing method |
| CN110092554A (en) * | 2019-04-28 | 2019-08-06 | 陕西同泽人居工程科技有限公司 | A kind of processing method about oilfield drilling spare |
Non-Patent Citations (1)
| Title |
|---|
| 张宝贵等: "《环境化学（第二版）》", 28 February 2018, 华中科技大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621040A (en) * | 2022-03-16 | 2022-06-14 | 苏州金螳螂园林绿化景观有限公司 | Method for preparing organic fertilizer by utilizing production household garbage and application |
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Application publication date: 20200225 |