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Low-energy-consumption and high-decrement-rate perishable garbage treatment process

A technology of bacterial species and content, applied in microorganism-based methods, immobilized on or in inorganic carriers, immobilized on/in organic carriers, etc. The problems of low rate and product value, large investment in biogas power generation and treatment projects, etc., achieve the effects of operator and employee friendliness, excellent mechanical strength, low breakage rate and low deformation rate

Active Publication Date: 2021-08-20
HANGZHOU NAXI ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, problems such as resource recovery rate and low product value in existing technologies, environmental odor, and poor front-end classification efficiency have become urgent problems to be solved in the perishable waste treatment industry.
The traditional perishable waste treatment process has obvious disadvantages, such as sanitary landfill to treat polluted soil and groundwater, and incineration treatment due to the high content of moisture and organic matter in perishable waste, which easily produces air pollution such as dioxin while increasing the treatment cost; high-temperature composting The power consumption of the treatment is huge, and the product contains too much salt and oil, making it difficult to recycle; the biogas power generation treatment project has a large investment and is difficult to operate stably

Method used

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  • Low-energy-consumption and high-decrement-rate perishable garbage treatment process
  • Low-energy-consumption and high-decrement-rate perishable garbage treatment process
  • Low-energy-consumption and high-decrement-rate perishable garbage treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1: a kind of composite microbial bacterial agent:

[0063] 1) Prepared with 1.5×10 9 cfu / mL Bacillus amyloliquefaciens, 1.7×10 9 cfu / mL Pseudomonas azogenes, 1.5×10 9 cfu / mL Pseudomonas flavum, 1.5×10 9 cfu / mL Pseudomonas brucelli, 1.4×10 9 cfu / mL Pseudomonas rugosa, 1.4×10 9 cfu / mL yeast and 1.5×10 9 cfu / mL actinomycetes bacterial liquid;

[0064] 2) Take 100g of 60-mesh Populus euphratica dry branch powder, put it in 2000mL aqueous solution containing 1% α-butanuonic acid and 0.8‰4-sulfonic acid calixarene, stir and disperse and modify at 120r / min for 60min at 45°C, filter Wash with deionized water until the lotion is neutral, and dry to obtain acid-modified Populus euphratica powder;

[0065] 3) Take 40-mesh Populus euphratica branch powder and heat it up to 350°C at 5°C / min in a muffle furnace to carbonize it for 2 hours to obtain Populus euphratica biochar; wash with 15% hydrochloric acid and deionized water, then dry, and place in a volume rati...

Embodiment 2

[0068] Embodiment 2: a kind of composite microbial bacterial agent:

[0069] 1) Prepared with 1.5×10 9 cfu / mL Bacillus amyloliquefaciens, 1.5×10 9 cfu / mL Pseudomonas azogenes, 1.4×10 9 cfu / mL Pseudomonas flavum, 1.5×10 9 cfu / mL Pseudomonas brucelli, 1.5×10 9 cfu / mL Pseudomonas rugosa, 1.4×10 9 cfu / mL yeast and 1.5×10 9 cfu / mL actinomycetes bacterial liquid;

[0070] 2) Take 100g of 60-mesh dry leaf powder of Populus euphratica, put it in 2000mL aqueous solution containing 1.5% α-butanuonic acid and 1.0‰4-sulfonic acid calixarene, stir and disperse at 300r / min for 30min at a temperature of 50°C, filter Wash with deionized water until the lotion is neutral, and dry to obtain acid-modified Populus euphratica powder;

[0071] 3) Take 40 mesh Populus euphratica branches and carbonize them in a muffle furnace at 10°C / min to 500°C for 1.5h to obtain Populus euphratica biochar; the Populus euphratica biochar is washed with 15% hydrochloric acid and deionized water, dried, and...

Embodiment 3

[0074] Embodiment 3: a kind of composite microbial bacterial agent:

[0075] 1) Prepared with 1.5×10 9 cfu / mL Bacillus amyloliquefaciens, 1.6×10 9 cfu / mL Pseudomonas azogenes, 1.6×10 9 cfu / mL Pseudomonas flavum, 1.3×10 9 cfu / mL Pseudomonas brucelli, 1.5×10 9 cfu / mL Pseudomonas rugosa, 1.3×10 9 cfu / mL yeast and 1.2×10 9 cfu / mL actinomycetes bacterial liquid;

[0076] 2) Take 50g of 60-mesh Populus euphratica dry branch powder and 50g of 60-mesh Populus euphratica dry leaf powder, place in 2L of aqueous solution containing 1.2% α-butanuonic acid and 1.0‰4-sulfonic acid calixarene, at a temperature of 48°C, at 240r / min Stir to disperse and modify for 45 minutes, filter out, wash with deionized water until the washing liquid is neutral, and dry to obtain acid-modified Populus euphratica powder;

[0077] 3) Take 40 meshes of Populus euphratica branches and leaves (weight ratio 2:1) and carbonize them in a muffle furnace at 8°C / min to 440°C for 2h to obtain Populus euphratica...

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Abstract

The invention relates to the technical field of perishable garbage treatment, and particularly relates to a low-energy-consumption and high-decrement-rate perishable garbage treatment process which comprises the steps of: 1) after picking out non-degradable substances from perishable garbage, crushing the perishable garbage until the perishable garbage can pass through a 20-mesh sieve, and placing the crushed perishable garbage in a degradation bin; and 2) adding 1.0-2.5 kg of composite microbial agent into each ton of perishable garbage at time intervals of 12h, and carrying out aerobic degradation for 48-72h at the normal temperature, wherein the composite microbial agent is specifically prepared by carrying out crosslinking on polyvinyl alcohol, sodium alginate, acid-modified populus euphratica powder and aminated biochar to form a composite carrier and then adsorbing microorganisms. The process not only can achieve not lower than 90% of decrement rate of the perishable garbage within short time, degrades organic macromolecules into micromolecular substances and implements low-energy-consumption conversion of the perishable garbage, but also well controls generation of odor in the degradation process.

Description

technical field [0001] The invention relates to the technical field of perishable garbage treatment, in particular to a perishable garbage treatment process with low energy consumption and high weight reduction rate. Background technique [0002] Perishable garbage in the traditional sense refers to food waste, specifically refers to food waste produced in the production and life processes of catering operators, unit canteens, family life, etc., leftovers, vegetable stems and leaves, meat offal, fruit shells, etc. Melon skin and so on are all perishable garbage. The composition and production amount of perishable garbage are affected by many factors, but generally have the following characteristics: 1) high moisture content, the moisture content of perishable garbage is generally higher than 60%, even up to 80%, which is relatively high. High moisture content not only brings greater difficulty and cost to collection, transportation and treatment, but also easily contaminate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/084C12N11/10C12N11/14C12N11/02C12N1/20C12N1/16C05F9/04C12R1/07C12R1/38
CPCC12N11/084C12N11/10C12N11/14C12N11/02C12N1/20C12N1/16C05F9/04Y02A40/20
Inventor 徐坚麟付源洪宗虎
Owner HANGZHOU NAXI ECOLOGICAL TECH CO LTD
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