Land improvement nutrient soil prepared from sludge of town sewage plants and preparation method thereof

A technology for urban sewage and nutrient soil, applied in sewage/sludge fertilizer, fertilizer made from biological waste, application, etc., can solve the problem of less nutrient soil, achieve good soil, and avoid time-consuming, labor-consuming and money-consuming , the effect of increasing the content of organic matter

Inactive Publication Date: 2016-05-11
GUANGXI HONGSHENGYUAN ENVIRONMENTAL PROTECTION CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In the prior art, the treatment of sludge is mostly t

Method used

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  • Land improvement nutrient soil prepared from sludge of town sewage plants and preparation method thereof

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preparation example Construction

[0038] The preparation method of nutrient soil for land improvement of the present invention must include the following steps: mixing various raw materials; and fermenting the mixed raw materials.

[0039] The above-mentioned fermentation is preferably fermented at 45-60°C for 3-7 days, for example, the temperature can be 45°C, 48°C, 50°C, 57°C, 59°C, 59.5°C or 60°C, etc.; the fermentation time can be 3 days , 4 days, 5 days, 6 days or 7 days, etc.

[0040] The description of the value is that after fermentation, a series of steps such as drying, sieving, granulation, and packaging are also included. These steps can be performed with reference to the process operations known in the art.

Embodiment 1

[0042] Proportioning raw materials according to parts by mass: 40 parts of urban sewage treatment plant sludge (water content is 85wt%), 40 parts of sugar factory filter mud, 5 parts of cassava dregs, 5 parts of furfural dregs, 8 parts of oil peony meal, 2 parts of peanuts Meal, 2 parts of fly ash and 8 parts of edible fungus residue.

[0043] After the above-mentioned raw materials are fully mixed by a mixer, they are put into a fermenter and fermented at 45° C. for 7 days by a known operation. After the fermentation is completed, it is dried, sieved, granulated, packaged, and inspected before leaving the factory.

Embodiment 2

[0045] Proportioning raw materials according to parts by mass: 60 parts of urban sewage treatment plant sludge (water content is 75wt%), 60 parts of yellow mud, 10 parts of cassava residues, 8 parts of furfural residues, 12 parts of oil peony meal, 3 parts of peanut meal, 5 parts of fly ash and 12 parts of edible mushroom residue.

[0046] After the above-mentioned raw materials are fully mixed by a mixer, they are placed in a fermenter and fermented at 60° C. for 3 days by a known operation. After the fermentation is completed, it is dried, sieved, granulated, packaged, and inspected before leaving the factory.

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Abstract

The invention provides land improvement nutrient soil prepared from sludge of town sewage plants and a preparation method thereof. The land improvement nutrient soil is prepared from the following raw materials in parts by mass: 40-60 parts of sludge, 40-60 parts of soil, 30-50 parts of industrial wastes and 0.08-0.2 part of microbial agents. According to the land improvement nutrient soil, the sludge is compounded with filter mud of sugar refineries; meanwhile, the industrial wastes are added into the nutrient soil; the content of organic matters in the land improvement nutrient soil is significantly increased; the better soil is ensured; in addition, the industrial wastes are applied to the land improvement nutrient soil, so that the solid wastes are reused; the consumption of time, labor and money for treating the solid wastes can be avoided; the problem of three wastes (waste gas, waste water and waste residues) can be solved.

Description

technical field [0001] The invention relates to the technical field of soil improvers, in particular to nutrient soil for land improvement prepared from urban sewage plant sludge and a preparation method thereof. Background technique [0002] In order to improve the current situation of serious water pollution in my country, the problem of urban sewage treatment in my country has been given full attention during the "Ninth Five-Year Plan" period, and urban sewage treatment projects have developed rapidly. In recent years, with the rapid improvement of urban sewage treatment capacity, the amount of sludge has also increased significantly. Due to the extremely complex composition of sludge, the continuous output of sludge every day cannot be digested in time, and a large amount of untreated sludge is randomly piled up. , It is easy to cause new secondary pollution to the environment, so the resource utilization of sludge is a problem to be solved in the current urban pollution...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
CPCC05D9/00C05G3/80C05F5/002C05F5/006C05F7/00C05F11/08C05G1/00
Inventor 黄敏白洋冯光兴劳百德
Owner GUANGXI HONGSHENGYUAN ENVIRONMENTAL PROTECTION CO LTD
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