CN103641518A - Compounded sludge for planting fresh flowers - Google Patents

Compounded sludge for planting fresh flowers Download PDF

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Publication number
CN103641518A
CN103641518A CN201310625866.7A CN201310625866A CN103641518A CN 103641518 A CN103641518 A CN 103641518A CN 201310625866 A CN201310625866 A CN 201310625866A CN 103641518 A CN103641518 A CN 103641518A
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CN
China
Prior art keywords
sludge
compounded
solidified
solidification
soil
Prior art date
Application number
CN201310625866.7A
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Chinese (zh)
Other versions
CN103641518B (en
Inventor
周海燕
李刚
张美兰
毛永军
张军
赵由才
黄仁华
Original Assignee
上海老港废弃物处置有限公司
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Application filed by 上海老港废弃物处置有限公司 filed Critical 上海老港废弃物处置有限公司
Priority to CN201310625866.7A priority Critical patent/CN103641518B/en
Publication of CN103641518A publication Critical patent/CN103641518A/en
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Publication of CN103641518B publication Critical patent/CN103641518B/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Abstract

The invention discloses compounded sludge for planting fresh flowers. The compounded sludge is prepared by mixing pretreated sludge, which is obtained by pretreating solidified sludge of which the water ratio is lower than 60% and the mechanical strength is enhanced to be more than 50KPa, with clay according to a weight ratio of 1:1. After the solidified sludge subjected to dewatering and solidification is cured in sun for 3 months, the physical properties, hydraulics properties and soil mechanics properties of the solidified sludge are changed, the existing forms of heavy metals are also changed, and the sludge loses the original color which is changed from black to earthy yellow and is gradually similar to that of soil; the specific yield of the compounded sludge is 30%, and the specific retention of the compounded sludge is 28%, so that the compounded sludge can satisfy conditions required by plant growth; moreover, for the sludge obtained by sun-curing the solidified sludge subjected to dewatering and solidification for 3 months, the organic matter content is reduced to 18% and is high, so that the sludge can be used as nutritive soil to provide nutrition required by plants to ensure that the plants can grow well.

Description

A kind of for planting the composite mud of fresh flower
Technical field
The present invention relates to recompounded technical field, relate in particular to a kind of for planting the composite mud of fresh flower.
Background technology
In mud, contain the nutritive elements such as nitrogen N, phosphorus P, potassium K, but because it contains pathogenic bacteria, heavy metal simultaneously, be therefore difficult to direct as fertilizer sources and use, meanwhile, due to the restriction of its hydromechanics and soil mechanical properties, also cannot carry out backfill as soil.
Mud is cured pre-treatment, and the water ratio of mud is down to 45% left and right, more than physical strength is enhanced to 50kPa, meets landfill requirement completely, carries out landfill disposal.Meanwhile, the experimental study of solidification sludge landfill stabilization procedures shows, solidification sludge landfill, after 2~3 years, can excavate and carry out recycling.But for after solidifying without the mud of landfill, nobody studies it and whether is applicable to direct utilization.
Summary of the invention
Technical problem to be solved by this invention: provide a kind of for planting the composite mud of fresh flower for existing demand, this composite mud not only makes mud can meet the condition of plantation fresh flower, and can provide plant required nutrition.
Technical problem solved by the invention can realize by the following technical solutions:
For planting a composite mud for fresh flower, be by water ratio lower than 60%, to be enhanced to the more than 50kPa pretreated pretreating sludge of solidification sludge and earth be that 1:1 mixes and forms according to weight ratio to physical strength.
In a preferred embodiment of the invention, described water ratio lower than 60%, physical strength be enhanced to more than 50kPa solidification sludge pre-treatment be by water ratio lower than 60%, the solidification sludge that is enhanced to more than 50kPa of physical strength puts airing 3 months.
The specific yield 30% of described pretreating sludge, specific retention 28%.
Owing to having adopted technical scheme as above, beneficial effect of the present invention is: the solidification sludge after dehydrating and curing is processed is through airing after 3 months, all there is change in its physical properties, hydraulic properties and soil mechanical properties, heavy metal exists form that variation has also occurred, and mud has lost original color, becomes khaki color by black, gradually with being similar in color of soil, its specific yield be 30% and specific retention be 28%, can meet the required condition of plant-growth; And the solidification sludge after dehydrating and curing is processed through airing the mud organic content after 3 months be down to 18%, organic content is high, mud can be used as Nutrition Soil, provides plant required nutrition, makes plant grew well.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below further set forth the present invention.
The present invention is for planting the composite mud of fresh flower, be by water ratio lower than 60%, to be enhanced to the more than 50kPa pretreated pretreating sludge of solidification sludge and earth be that 1:1 mixes and forms according to weight ratio to physical strength.And water ratio is lower than 60%, the solidification sludge pre-treatment that physical strength is enhanced to more than 50kPa is lower than 60% by water ratio, physical strength is enhanced to the specific yield 30% that more than 50kPa solidification sludge is put the pretreating sludge that airing obtains after 3 months, specific retention 28%, and except zinc content, the content of all the other various metals has all reached the standard of the III class soil in < < standard of soil environment quality > > (GB15618-1995), therefore need to take required measure to be fixed, the environmental pollution of avoiding zinc to cause.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (3)

1. for planting a composite mud for fresh flower, it is characterized in that, by water ratio lower than 60%, to be enhanced to the more than 50kPa pretreated pretreating sludge of solidification sludge and earth be that 1:1 mixes and forms according to weight ratio to physical strength.
2. as claimed in claim 1 for planting the composite mud of fresh flower, it is characterized in that, described water ratio lower than 60%, physical strength be enhanced to more than 50kPa solidification sludge pre-treatment be by water ratio lower than 60%, the solidification sludge that is enhanced to more than 50kPa of physical strength puts airing 3 months.
3. as claimed in claim 1ly for planting the composite mud of fresh flower, it is characterized in that the specific yield 30% of described pretreating sludge, specific retention 28%.
CN201310625866.7A 2013-11-28 2013-11-28 A kind of composite mud for planting fresh flower CN103641518B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310625866.7A CN103641518B (en) 2013-11-28 2013-11-28 A kind of composite mud for planting fresh flower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310625866.7A CN103641518B (en) 2013-11-28 2013-11-28 A kind of composite mud for planting fresh flower

Publications (2)

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CN103641518A true CN103641518A (en) 2014-03-19
CN103641518B CN103641518B (en) 2015-12-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107417418A (en) * 2017-09-08 2017-12-01 大连青松智慧生态科技有限公司 A kind of sludge and soil mixed method

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JPH10194884A (en) * 1997-01-06 1998-07-28 Hitachi Zosen Corp Slow release organic fertilizer
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CN102792802A (en) * 2012-08-08 2012-11-28 哈尔滨工业大学 Method for modifying soda saline-alkali soil with dewatered sludge
CN102897992A (en) * 2012-10-18 2013-01-30 北京工业大学 Method for solidifying and stabilizing sludge from urban sewage treatment plant
CN103262732A (en) * 2013-05-15 2013-08-28 天津师范大学 Method for improving protective enzyme activity of turfgrass plants by utilizing air-dried sludge
CN103262733A (en) * 2013-05-15 2013-08-28 天津师范大学 Method for improving lawn forming quality through applying air-dried sludge substrate
CN103283441A (en) * 2013-05-15 2013-09-11 天津师范大学 Method for improving drought resistance of lawn plants through dried sludge
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JPH10194884A (en) * 1997-01-06 1998-07-28 Hitachi Zosen Corp Slow release organic fertilizer
CN101265070A (en) * 2008-04-17 2008-09-17 高康 Sludge solidifying agent and application thereof
CN101885575A (en) * 2010-07-02 2010-11-17 广东工业大学 Solidification/stabilization treatment method for papermaking sludge
CN102093027A (en) * 2010-12-17 2011-06-15 上海泰历盟实业有限公司 Sludge curing agent and method for curing sludge
CN102792802A (en) * 2012-08-08 2012-11-28 哈尔滨工业大学 Method for modifying soda saline-alkali soil with dewatered sludge
CN102897992A (en) * 2012-10-18 2013-01-30 北京工业大学 Method for solidifying and stabilizing sludge from urban sewage treatment plant
CN103262732A (en) * 2013-05-15 2013-08-28 天津师范大学 Method for improving protective enzyme activity of turfgrass plants by utilizing air-dried sludge
CN103262733A (en) * 2013-05-15 2013-08-28 天津师范大学 Method for improving lawn forming quality through applying air-dried sludge substrate
CN103283441A (en) * 2013-05-15 2013-09-11 天津师范大学 Method for improving drought resistance of lawn plants through dried sludge
CN103304114A (en) * 2013-05-28 2013-09-18 北京工业大学 Curing/stabilizing method for sludge from urban sewage treatment plant

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107417418A (en) * 2017-09-08 2017-12-01 大连青松智慧生态科技有限公司 A kind of sludge and soil mixed method

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