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Method for preparing trace-element fertilizer

A technology of trace element fertilizer and preparation process, which is applied in the direction of organic fertilizer, fertilizer mixture, sewage/sludge fertilizer, etc., to achieve the effect of environmentally friendly and clean pulping

Active Publication Date: 2013-10-23
谢明文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only solves the problem of pulping waste liquid treatment, but also produces trace element fertilizers that meet the needs of crops, thus completely realizing environmentally friendly and clean pulping, turning waste into treasure

Method used

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  • Method for preparing trace-element fertilizer
  • Method for preparing trace-element fertilizer
  • Method for preparing trace-element fertilizer

Examples

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Embodiment Construction

[0051] The present invention will be further explained and described below in conjunction with specific examples. The "parts" mentioned in the examples all refer to "parts by weight": all percentages are mass percentages.

[0052] 1. Equipment used (all existing equipment) ：

[0053] Pretreatment pool: stainless steel container with agitator.

[0054] Filter tank: a container with 60-80 mesh stainless steel wire mesh; separate flocculent solids from water.

[0055] Sludge filter press: RBYL-1000 belt filter press is used.

[0056] Reuse Basin: Stainless steel vessel with agitator.

[0057] Premixer: stainless steel container with stirring type.

[0058] Stirring tank: Chemical stirring tank.

[0059] Dryer: double pulse airflow dryer

[0060] Weighing and packing machine: ZKYT-JBM-60K

[0061] Second, the preparation of the reagents used:

[0062] 1. Flocculant: Prepared with cationic polyacrylamide modified starch, details are as follows:

[0063] 1) Preparation ...

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Abstract

The invention belongs to the field of fertilizer production and discloses a method for preparing a trace-element fertilizer. A pulping waste liquor for papermaking is used as a raw material. The method includes the following steps of pretreatment, filtering, filter-pressing, reclaimed water treatment, pre-mixing, stirring, adjusting potential of hydrogen (pH) and drying to finally obtain the trace-element fertilizer. According to the trace-element fertilizer, the mass ratio of trace elements is that Mo:Zn:Cu:B:Mn:Fe:Cl is identical to 1: (16-20): (55-60): (1-1.5): (55-60): (15-18): (330-350). The method for preparing the trace-element fertilizer has the advantages that the treatment problem of the pulping waste liquor is solved, simultaneously, the trace-element fertilizer which can meet requirements of crops is produced by the pulping waste liquor, environment-friendly and clean pulping can be completely achieved, and the waste materials can be changed into things of value.

Description

technical field [0001] The invention belongs to the field of fertilizer production, and in particular relates to a process for producing a trace element fertilizer with papermaking and pulping waste. Background technique [0002] With the continuous development of agricultural production, the output per unit area has been continuously increased, and the trace elements taken away from the soil by crops have also increased accordingly. At present, crop fertilization focuses on the application of large amounts of fertilizers such as nitrogen, phosphorus, and potassium, while ignoring the application of trace element fertilizers, so that the soil The gradual lack of trace elements has seriously affected the high quality and high yield of crops. [0003] The major elements required by crops are: carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, etc. [0004] The trace elements required by crops are: zinc, boron, manganese, molybdenum, iron, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05F7/02
Inventor 谢明文于翔
Owner 谢明文