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Microbiological treatment method for scraps produced by fireworks and crackers set off during spring festival

A technology of microbial treatment, fireworks and firecrackers, which is applied in the direction of using microbial/enzyme cellulose treatment, fiber raw material treatment, processing waste paper, etc., can solve the problems of low recycling rate, disdain for recycling, high recycling cost, etc., and achieve recycling rate High efficiency, less waste water, and improved leaching efficiency

Active Publication Date: 2018-03-09
JINING XINRUIDA INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition to a huge amount of paper scraps, these wastes also contain more valuable copper, aluminum, magnesium elements, rare earth elements and a small amount of heavy metal elements, etc. These wastes are often treated by centralized incineration or direct landfill, resulting in two Secondary pollution; the above two kinds of garbage are waste products that waste manufacturers disdain to recycle due to the high recycling cost and low recycling rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 1 ton of waste from fireworks and firecrackers:

[0023] (1) Put 120°C steam into the waste for 10 minutes to sterilize;

[0024] (2) Add 10 tons of water, adopt the ZDS-30 pulper produced by Zhucheng Jinhaiying Environmental Protection Equipment Co., Ltd., 1000r / min to disintegrate, and pass it into the treatment tank to obtain coarse pulp;

[0025] (3) Add dilute sulfuric acid to adjust the pH value of the coarse slurry to 2.0, and inoculate the microbial seed solution containing acidophilic Thiobacillus ferrooxidans, Rhodotorula yunnanensis, and Klebsiella pneumoniae, so that the microbial concentration in the solution is 3.0× 10 6 a / ml;

[0026] (4) heating the coarse slurry to a temperature of 30°C, and leaching for 2 days at a rotating speed of 150r / min;

[0027] (5) Use the ZS series linear vibrating screen produced by Hebi Hongli Vibration Machinery Co., Ltd. to separate the impurities in the coarse pulp, and then use the ZNW gravity cylinder thickener p...

Embodiment 2

[0034] Take 1 ton of waste from fireworks and firecrackers:

[0035] (1) Put 120°C steam into the waste for 5 minutes to sterilize;

[0036] (2) Add 15 tons of water, adopt the ZDS-30 pulper produced by Zhucheng Jinhaiying Environmental Protection Equipment Co., Ltd., 1000r / min to disintegrate, and pass it into the treatment tank to obtain coarse pulp;

[0037] (3) Add dilute sulfuric acid to adjust the pH value of the coarse slurry to 2.0, and inoculate the microbial seed solution containing acidophilic Thiobacillus ferrooxidans, Rhodotorula yunnanensis, and Klebsiella pneumoniae, so that the microbial concentration in the solution is 5.0× 10 6 a / ml;

[0038] (4) heating the coarse slurry to a temperature of 30°C, and leaching for 3 days at a rotating speed of 150r / min;

[0039] (5) Use the ZS series linear vibrating screen produced by Hebi Hongli Vibration Machinery Co., Ltd. to separate the impurities in the coarse pulp, and then use the ZNW gravity cylinder thickener pr...

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Abstract

The invention relates to a microbiological treatment method for scraps produced by fireworks and crackers which are set off during spring festival. The method comprises the following steps: pulping, carrying out microbiological treatment, and carrying out separation of impurities, thereby obtaining paper pulp with relatively high quality, waste liquor rich in metallic elements such as aluminum, copper and magnesium as well as waste residue with relatively low heavy metal content; and the scraps produced by the fireworks and crackers which are set off are relatively low in content of unburned active metals and heavy metals with inhibiting effect on microbial activity, so that pH value of solution changes slightly in an extraction process of the microbiological treatment method, microbial reaction can be continuously and efficiently carried out, the whole technological process is shortened, and microbiological leaching efficiency is improved. The microbiological treatment method providedby the invention is simple in technology and low in cost, less wastewater is produced, recovery utilization rate is high, the leaching rate of copper, aluminum and magnesium can reach more than 60%,and the highest leaching rate can reach 100%.

Description

technical field [0001] The invention belongs to the field of biological treatment, and in particular relates to a microbial treatment method for waste debris produced by setting off fireworks and firecrackers during the Spring Festival. Background technique [0002] The custom of setting off fireworks and firecrackers and posting Spring Festival couplets during the Spring Festival has a long history in our country. Although more and more big cities have implemented measures to prohibit them during the Spring Festival, the vast number of rural areas and small cities have shown that the amount of fireworks during the Spring Festival has intensified; This has led to a large amount of waste from fireworks and firecrackers during the Spring Festival; and the current Spring Festival couplets are generally written or printed with gold letters. These gold letters are made of copper powder. fall off, producing a lot of garbage. Taking Jinan City as an example, more than 800 tons of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/00D21C5/02B09B3/00B09B5/00
CPCB09B3/00B09B5/00D21C5/005D21C5/02Y02W30/64
Inventor 瞿欢欢朱至放
Owner JINING XINRUIDA INFORMATION TECH CO LTD
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