Organic fertilizer prepared from sludge

An organic fertilizer and sludge technology, applied in the direction of organic fertilizer, organic fertilizer preparation, bio-organic part treatment, etc., can solve the problems of low fertilizer effectiveness, decomposition heat generation, competition for nutrients, etc., to improve soil structure and accelerate soil maturation , the effect of reducing environmental stress

Inactive Publication Date: 2013-12-25
华益兰馨(北京)环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that urban sludge contains a large amount of organic matter, nitrogen, phosphorus and other nutrients needed for plant growth. For a long time, most of urban sludge has been directly applied to the planting site, but if it is directly applied to the planting site without necessary treatment Not only can it not meet the needs of plants for nutrients, but the effectiveness of its fertilizer is low. If it is applied to the field without the decomposing action of microorganisms, it will continue to decompose and generate heat, which may cause seedlings to burn. Microorganisms in sludge may compete with crops for nutrients.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The components and weight percentages of the organic fertilizer prepared from sludge are as follows: sludge accounts for 65%, organic waste accounts for 30%, and biomass fermentation enzyme accounts for 5%. The preparation method comprises the following steps:

[0015] 1) Remove impurities from the pure sludge and set aside;

[0016] 2) Mix plastic waste, waste rubber, fiber fabric, waste paper, rice bran, coconut shell, leaves, bark and flowers and plants in organic waste with the biomass fermentation enzyme according to the above components and weight percentages, Pile into a pile of a certain size, ferment for 15 days, and set aside;

[0017] 3) According to the above components and weight percentage, carry out anaerobic fermentation for 15 days on the kitchen waste peel, cake, distiller's grains and bagasse in the organic waste, and set aside;

[0018] 4) Mix and stir the preparations of all the above steps, and ferment naturally for 15 to 20 days.

[0019] For v...

Embodiment 2

[0022] The difference from Example 1 is that the components and weight percentages of the organic fertilizer prepared from sludge are: sludge accounts for 60%, organic waste accounts for 35%, and biomass fermentation enzyme accounts for 5%. The effect of the invention is the same as that of Embodiment 1.

Embodiment 3

[0024] The difference from Example 1 is that the components and weight percentages of the organic fertilizer prepared from sludge are: sludge accounts for 70%, organic waste accounts for 27%, and biomass fermentation enzyme accounts for 3%. The effect of the invention is the same as that of Embodiment 1.

[0025] The organic fertilizer prepared from sludge of the present invention can effectively improve the soil structure, and has the effect of accelerating soil maturation for newly reclaimed farmland; in terms of fertilizer efficiency, it belongs to a slow-release fertilizer with a long effective period and is suitable for Planting long-season plants can provide continuous support for such plants; it can reduce the cost of fertilizer use by more than 54%, and prolong the release cycle of fertilizer nutrients to about 120%. The fertilizer produced by this technology can reduce the impact of sludge on the environment. The resulting environmental pressure will increase the envi...

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PUM

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Abstract

The invention relates to an organic fertilizer prepared from sludge, which comprises the following components in percentage by weight: 60-70% of sludge, 27-35% of organic waste and 3-5% of biomass fermenting enzyme. The sludge is pure sludge in which heavy metals and substances that are harmful to plant growth are removed. The organic waste comprises 5% of plastic waste, 8% of waste rubber, 5% of fiber fabric, 12% of waste paper, 15% of rice bran, 14% of coconut shell, 6% of leaf, 10% of bark, 3% of flower and grass, 7% of kitchen peel, 5% of cake pulp, 5% of vinasse and 5% of bagasse. The organic fertilizer can effectively improve the soil structure, has longer effective time, can lower the fertilizer use cost, and enhances the environmental contribution rate.

Description

technical field [0001] The invention relates to an organic fertilizer prepared from sludge. Background technique [0002] For a long time, the use of fertilizers in gardens, green spaces, and afforestation processes has mainly been fermented animal manure and straw landfills. The problems are: 1. Increasing production costs; 2. Waste of agricultural production materials; 3. Short fertilizer use cycle ; 4. The contribution rate to the environment is low. [0003] In recent years, with the operation of sewage treatment plants in cities, especially some large and medium-sized sewage treatment plants, the sludge production has also increased rapidly while the sewage treatment rate in my country has continued to increase. How to treat and dispose of these sewage Mud has always been a matter of concern from all sides. Studies have shown that urban sludge contains a large amount of organic matter, nitrogen, phosphorus and other nutrients needed for plant growth. For a long time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F15/00
CPCY02W30/40
Inventor 李拓彬
Owner 华益兰馨(北京)环境科技有限公司
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