CN109644817A - A method of culture medium is prepared using phosphatization sludge - Google Patents
A method of culture medium is prepared using phosphatization sludge Download PDFInfo
- Publication number
- CN109644817A CN109644817A CN201811538199.8A CN201811538199A CN109644817A CN 109644817 A CN109644817 A CN 109644817A CN 201811538199 A CN201811538199 A CN 201811538199A CN 109644817 A CN109644817 A CN 109644817A
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- Prior art keywords
- sludge
- soil
- phosphatization
- culture medium
- mixed
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Classifications
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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
-
- 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
-
- 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
- A01G24/23—Wood, e.g. wood chips or sawdust
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Fertilizers (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a kind of methods for preparing culture medium using phosphatization sludge, and step includes: sludge drying: carrying out desiccation to the phosphatization sludge after filters pressing, moisture content is down to 40% or less；Soil ginseng is mixed: by moisture content in 40% phosphatization sludge and normal soil below according to the ratio of 1:3~1:5, and adding sawdust, biological carbon, organic fertilizer, it is mixed equably to carry out ginseng；Crop is planted: will join mixed soil and makes thinner into the culture medium with a thickness of 20cm.It is an advantage of the current invention that realizing the innoxious and recycling of phosphatization sludge.
Description
Technical field
The present invention relates to a kind of methods for preparing culture medium using phosphatization sludge, are mainly used in the technical field of environmental protection.
Background technique
As traditional process of surface treatment, the discharge of wastewater after phosphorating treatment is always the emphasis of environmental protection supervision, especially
It is the TP (total phosphorus) in waste water and the huge sum of money based on Zn (zinc) under the severe situation that China's river and lake eutrophication remains high
Category constitutes a threat to water quality safety.To guarantee qualified discharge, phosphorized waste water mainly uses coagulation-settlement process, i.e., by adding alkali
Promote soluble phosphate radical to generate insoluble calcium phosphate precipitation, realizes removal synchronous with heavy metal to TP, be substantially
Polluter in water is shifted into sludge, from the point of view of pollutant life cycle, is realizing phosphorized waste water qualified discharge
Later, it is necessary to safe disposal be carried out to sludge, the pollution and infringement to environment could be taken precautions against in the entire process.
The main component of phosphatization sludge is phosphate, is pollutant for water body, is the arch-criminal of eutrophication, but is arrived
In soil for crop, it can but become the fertilizer for promoting its yield and quality, be can provide the resource utilized.But in view of
Containing heavy metal, phosphatization sludge is put into national " hazardous waste catalogue ", and common method of disposal is to be transported to dangerous solid waste landfill
Field carries out security landfill, and potential resource is not only not used, and also adds the production cost of enterprise and to public environmentally friendly resource
Occupancy.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of methods for preparing culture medium using phosphatization sludge, realize dangerous
The innoxious and recycling of solid waste.
The present invention is achieved through the following technical solutions.
A method of culture medium being prepared using phosphatization sludge, step includes:
(1) sludge drying:
Desiccation is carried out to the phosphatization sludge after filters pressing, moisture content is down to 40% or less；
(2) soil ginseng is mixed:
By moisture content in 40% phosphatization sludge and normal soil below according to the ratio of 1:3~1:5, and add sawdust,
It is mixed equably to carry out ginseng for biological carbon, organic fertilizer；
(3) crop is planted:
Mixed soil will be joined and make thinner into the culture medium with a thickness of 20cm.
Further, (2): the volume ratio of sawdust and the mixed soil of ginseng is 2:1~3:1.
Further, (2): biological carbon and ginseng mix the volume ratio of soil as 5:1~10:1.
Further, the mass ratio of organic fertilizer and the mixed soil of ginseng is 10:1~20:1.
Beneficial effects of the present invention:
The innoxious and recycling for realizing phosphatization sludge, is calculated, including the flat costs such as sawdust, biological carbon, organic fertilizer
With and the indirect expenses such as artificial, place, water power including, comprehensive cost, the 1/6 of deficiency commission outward transport landfill, environment
It is very prominent with economic benefit.
Specific embodiment
Below according to embodiment, invention is further described in detail.
The invention discloses a kind of method for preparing culture medium using phosphatization sludge, specific implementation the following steps are included:
1, sludge drying
To the phosphatization sludge further progress desiccation after filters pressing, by moisture content be down to 40% hereinafter, so as to equably with
It is mixed that soil carries out ginseng.Visual concrete condition when specific implementation, is used to the waste heat in phosphating process, such as the tail vapour of steam
Deng.
2, soil ginseng is mixed
By moisture content in 40% phosphatization sludge and normal soil below according to the ratio of 1:3~1:5, and add sawdust
(being 2:1~3:1 with the volume ratio for joining mixed soil), biological carbon (being 5:1~10:1 with the volume ratio for joining mixed soil), organic fertilizer
Modified fillers such as (being 10:1~20:1 with the mass ratio for joining mixed soil), it is mixed equably to carry out ginseng.Wherein sawdust and biological carbon are used
To improve the retain water and nutrients ability for joining mixed soil, organic fertilizer is used as base fertilizer.
3, crop is planted
Mixed soil will be joined and make thinner into the culture medium with a thickness of 20cm.
Certain enterprise's phosphatization production line, average daily 50~70t/d of wastewater flow rate, water treatment system daily produce mud 0.5t, produce mud per year
120t, commission qualification unit are transported to dangerous solid waste landfill site landfill outside, and corresponding expense is that need to consume 600,000 yuan in 1 year,
To reduce the heavy burdens, enterprise has carried out phosphatization sewage sludge harmlessness and recycling work, that is, utilizes phosphatization sludge Nutrition Soil.Specifically do
Method is that the moisture content of phosphatization sludge is down to 40% or less using the residual heat resources of phosphatization production line；Then with plant area greenbelt soil
Earth and adds sawdust (being 3:1 with the volume ratio for joining mixed soil), biological carbon (with the volume ratio for joining mixed soil according to the ratio of 1:3
For modified fillers such as 10:1), organic fertilizers (being 20:1 with the mass ratio for joining mixed soil), it is mixed equably to carry out ginseng；Utilize idle water
Vinyl house is built in mud place, will be joined mixed soil and is made thinner into the culture medium with a thickness of 20cm in greenhouse, passes through cuttage cauline leaf
Mode plants water spinach, and strain spacing 10cm is kept joining mixed soil moisture content 80%, be kept using the residual heat resources of phosphatization production line
For temperature of shed about 30 DEG C, harvesting in 7 days is primary, and the every two moon plants receipts to join that mixed soil re-starts mix and water spinach
It cuts；The water spinach gathered in weekly concentrates and is burned, ash commission have be transported to outside the unit of qualification dangerous solid waste landfill site into
Row landfill；By scheduling to last the phytoremediation of half a year, the Zn content for joining mixed soil is 93.7mg/kg, meets national soil environment matter
The primary standard of amount, the slightly above background value of locality farmland 81.4mg/kg, and the available phosphorus content for joining mixed soil is 1.26g/
Kg, much higher than the 0.42g/kg in local farmland；Soil of the mixed soil of ginseng for this enterprise land use for greening after phytoremediation changes
It is good.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with this field technology
Personage can understand the content of present invention and be implemented, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (4)
1. a kind of method for preparing culture medium using phosphatization sludge, which is characterized in that step includes:
(1) sludge drying:
Desiccation is carried out to the phosphatization sludge after filters pressing, moisture content is down to 40% or less；
(2) soil ginseng is mixed:
By moisture content in 40% phosphatization sludge and normal soil below according to the ratio of 1:3~1:5, and add sawdust, biology
It is mixed equably to carry out ginseng for carbon, organic fertilizer；
(3) crop is planted:
Mixed soil will be joined and make thinner into the culture medium with a thickness of 20cm.
2. the method according to claim 1 for preparing culture medium using phosphatization sludge, which is characterized in that (2): sawdust and ginseng
The volume ratio of mixed soil is 2:1~3:1.
3. the method according to claim 1 for preparing culture medium using phosphatization sludge, which is characterized in that (2): biological carbon with
The volume ratio for joining mixed soil is 5:1~10:1.
4. the method according to claim 1 for preparing culture medium using phosphatization sludge, which is characterized in that organic fertilizer and ginseng are mixed
The mass ratio of soil is 10:1~20:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538199.8A CN109644817A (en) | 2018-12-16 | 2018-12-16 | A method of culture medium is prepared using phosphatization sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538199.8A CN109644817A (en) | 2018-12-16 | 2018-12-16 | A method of culture medium is prepared using phosphatization sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109644817A true CN109644817A (en) | 2019-04-19 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811538199.8A Pending CN109644817A (en) | 2018-12-16 | 2018-12-16 | A method of culture medium is prepared using phosphatization sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636896A (en) * | 2021-08-20 | 2021-11-12 | 华电西藏能源有限公司大古水电分公司 | Method for promoting sandy aggregate dewatered sludge to be in soil by using wood processing excess material and biochar thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896925A (en) * | 2017-12-05 | 2018-04-13 | 西南大学 | A kind of lightweight cultivation matrix for roof greening and preparation method thereof |
| CN108323404A (en) * | 2018-02-05 | 2018-07-27 | 江苏泓润生物质能科技有限公司 | A kind of sweet osmanthus cultivation matrix and production method and application method |
| CN108812186A (en) * | 2018-05-22 | 2018-11-16 | 镇江市水业总公司 | A kind of horticultural gardening matrix and production method |
| CN108834861A (en) * | 2018-05-31 | 2018-11-20 | 合肥宸翊商贸有限公司 | A kind of cultivation device |
-
2018
- 2018-12-16 CN CN201811538199.8A patent/CN109644817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896925A (en) * | 2017-12-05 | 2018-04-13 | 西南大学 | A kind of lightweight cultivation matrix for roof greening and preparation method thereof |
| CN108323404A (en) * | 2018-02-05 | 2018-07-27 | 江苏泓润生物质能科技有限公司 | A kind of sweet osmanthus cultivation matrix and production method and application method |
| CN108812186A (en) * | 2018-05-22 | 2018-11-16 | 镇江市水业总公司 | A kind of horticultural gardening matrix and production method |
| CN108834861A (en) * | 2018-05-31 | 2018-11-20 | 合肥宸翊商贸有限公司 | A kind of cultivation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636896A (en) * | 2021-08-20 | 2021-11-12 | 华电西藏能源有限公司大古水电分公司 | Method for promoting sandy aggregate dewatered sludge to be in soil by using wood processing excess material and biochar thereof |
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Application publication date: 20190419 |
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