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Method for converting blue algae mud into organic fertilizer by thermal composting

A technology of cyanobacteria and organic fertilizer, applied in the direction of organic fertilizer, sewage/sludge fertilizer, fertilization device, etc., can solve the problems of difficult storage, long time, insufficient environmental stacking capacity, etc., and achieve high fermentation maturity, low cost, Comprehensive utilization and processing of simple and fast effects

Inactive Publication Date: 2012-06-20
合肥市东方美捷分子材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use strip stack or trough compost for transformation, high temperature composting for 10-25 days, post-ripening static composting for 25-35 days; the time is long, the environmental stacking capacity is insufficient, and storage is difficult

Method used

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  • Method for converting blue algae mud into organic fertilizer by thermal composting
  • Method for converting blue algae mud into organic fertilizer by thermal composting
  • Method for converting blue algae mud into organic fertilizer by thermal composting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The main materials and tools in this embodiment are: cyanobacterial algae mud, environment-inducing materials, warm heap pools, flexible storage bags, straw curtains, moso bamboo, nylon nets, sunscreen nets, bamboo rakes, and the like.

[0026] Transformation process: After concentrating and dehydrating 500kg of fresh cyanobacteria, the water content of the algal mud is 90-95wt%, and the algal mud is directly added according to 0%, 0.1%, 0.3%, 0.5%, 1.0% and 1.5% of the quality of the algal mud or diluted 20 times with water. Spray and add environment-inducing materials, stir evenly, and then transport to a storage tank or flexible bag, and naturally avoid light and thermopile transformation, temperature 25-35 ℃, humidity 65-100g / m 3 , Under the air pressure of 1atm, it can be completely transformed in 3-5 days. There is no obvious algal odor, the algal mud turns black, and the surface has white mildew spots.

[0027] The composition of the environment-inducing material...

Embodiment 2

[0033] Application method 1: The transformed organic fertilizer prepared in Example 1 is directly diluted with water as an organic fertilizer, and is fed to catfish, crucian carp, and snail. Under continuous topdressing, the pH value of the water body floats between 6.9 and 7.8, and the snails grow well.

[0034] Application method 2: The transformed organic fertilizer prepared in Example 1 is directly diluted with water as an organic fertilizer, planted with Chlorophytum, Dripping Guanyin, turf, and water lilies, under continuous top dressing, the Chlorophytum leaves increased, the Dripping Guanyin leaves were light green, and the turf and the water lilies grew vigorously.

[0035] The algal mud organic fertilizer fertilizer effect components of the present invention are as follows:

[0036]

[0037] The fertilizer components of the algal mud organic fertilizer refer to the urban garbage agricultural control standards. The content of various heavy metals, the death rate of ...

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Abstract

The invention discloses a method for converting blue algae mud into an organic fertilizer by thermal composting, which comprises the following steps: concentrating the drained the blue algae mud until the water content is 90-95%, thereby obtaining the concentrated algae mud; adding an environmental induction material, which accounts for 0.1-1.5 wt% of the concentrated algae mud, into the concentrated algae mud; and uniformly stirring, and carrying out thermal composting in a dark place for 3-5 days, thereby obtaining the organic fertilizer. The method disclosed by the invention overcomes the defects of long time, great loss of available nutrients, pathogenic bacteria, viruses, microbial poison accumulation, heavy metal concentration and secondary pollution in the simple composting fermentation, lowers the transportation and storage cost, saves the occupied area and equipment investment, thoroughly implements harmless treatment, and solves the problem in large-scale conversion from wide-resource organic pollutants into the organic fertilizer.

Description

1. Technical field [0001] The invention relates to a method for treating environmental pollution, in particular to a method for treating cyanobacterial algae sludge, and more specifically a method for converting cyanobacterial algae sludge into organic fertilizer by warm heaping. 2. Background technology [0002] Due to extensive and rapid development, a large amount of sewage was discharged into rivers and lakes, which accelerated the eutrophication of water bodies, resulting in large-scale outbreaks of cyanobacteria. A large number of cyanobacteria accumulate along the banks of rivers and lakes, cover the water surface, consume dissolved oxygen in the water, fish and shrimp die due to lack of oxygen, and the algae rot and emit foul odor, which has caused a series of ecological and water safety problems and caused huge economic losses. [0003] The management and utilization of cyanobacteria is a global century problem. The biomass of cyanobacteria is extremely high during...

Claims

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Application Information

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IPC IPC(8): C05F7/00
CPCY02A40/20
Inventor 朱守诚武艳漆静秋褚维发程世林杨宏星刘焕霞
Owner 合肥市东方美捷分子材料技术有限公司
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