Regenerated sandy soil conditioner and preparation method thereof

A sandy soil and improver technology, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve problems such as unsatisfactory effects, low sludge fertilizer efficiency, and difficulty in retaining water, and is suitable for large-scale promotion and use. , low raw material and production cost, simple process effect

Inactive Publication Date: 2013-06-19
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the disadvantages of low fertilizer efficiency and difficulty in water retention, the effect of sludge is not very ideal.

Method used

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  • Regenerated sandy soil conditioner and preparation method thereof
  • Regenerated sandy soil conditioner and preparation method thereof

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0015] Regenerated sandy soil improver of the present invention, its preferred embodiment is:

[0016] It includes 90% by mass of urban sewage plant sludge and 10% by mass of sodium humate.

[0017] The sodium humate is sodium humate made from lignite.

[0018] The preparation method of above-mentioned regenerated sandy soil conditioner of the present invention, comprises steps:

[0019] First, prepare sodium humate with weathered lignite;

[0020] Then, take 90 parts of urban sewage plant sludge and 10 parts of sodium humate by mass ratio and mix and stir for 30 minutes;

[0021] After that, subpackage and inspection processes are carried out.

[0022] The process for preparing sodium humate comprises:

[0023] First, put the weathered lignite into a beaker, add deionized water, NaOH and NaOH 2 CO 3 , stir evenly;

[0024] Afterwards, extract at room temperature for 2 hours, filter with a Buchner funnel, and dry the filtrate at 70°C to make a sodium humate product.

...

specific Embodiment

[0047] as attached figure 1 As shown, lignite is first made into sodium humate. The specific steps are as follows: take a certain amount of weathered lignite and put it into a beaker, add deionized water, NaOH and NaOH 2 CO 3 , stir well. Afterwards, extract at room temperature for 2 hours, filter with a Buchner funnel, and dry the filtrate at 70°C to obtain the sodium humate product. Under laboratory conditions, 630-690g sodium humate can be obtained from 1000g weathered lignite coal sample. Afterwards, 90 parts of urban sewage plant sludge and 10 parts of sodium humate were weighed according to the mass ratio, fully mixed and stirred for 30 minutes. Finally, the homogeneously mixed mixed material is sampled and inspected, and then measured and packaged after passing the inspection to obtain the finished product of the regenerated sandy soil improver.

[0048] Specific application examples:

[0049]Through the indoor pot experiment, Acorus calamus was planted in flowerp...

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Abstract

The invention discloses a regenerated sandy soil conditioner and a preparation method thereof. The preparation method of the regenerated sandy soil conditioner comprises the following steps of: taking abandoned sludge of an urban sewage plant and cheap lignite as raw materials, preparing sodium humate with leonardite, weighing 90 parts of abandoned sludge of the urban sewage plant and 10 parts of sodium humate according to the mass ratio to be mixed and stirred for 30 minutes, and carrying out split charging and checking processes. The prepared regenerated sandy soil conditioner has the advantages of being simple in production process and low in raw material and production cost. Moreover, the regenerated sandy soil conditioner is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to a sandy soil improver, in particular to a regenerated sandy soil improver and a preparation method thereof. Background technique [0002] Traditional sandy soil improvers generally use bentonite as the main raw material, and add auxiliary materials such as water retaining agent and biomass to it. Adding amendments in the process of sandy soil or desert control can improve soil aggregate structure, achieve water retention and fertilizer increase, soil improvement, crop income increase, plant growth and other purposes. Sandy soil improver can improve sandy land, save water, and preserve fertilizer. It can also be used in desert control, canal seepage control, saline-alkali land improvement, grassland grassland control, woodland soil erosion, and cultivated land warming. [0003] The processes adopted by urban sewage plants are mainly activated sludge biological method and biofilm method (both biochemical methods). During the no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/32
Inventor 张春晖张雯雯宁可陈俊郭远杰梁琛
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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