CN102381822A

CN102381822A - Multi-strain compound microbial high-temperature rapid-digestion sludge harmless treatment method

Info

Publication number: CN102381822A
Application number: CN2011101997428A
Authority: CN
Inventors: 刘建伦; 张景致
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-18
Filing date: 2011-07-18
Publication date: 2012-03-21

Abstract

The invention discloses a multi-strain compound microbial high-temperature rapid-digestion sludge harmless treatment process method, and the process comprises the following steps: adding a modifier in to sludge for modification, performing pressure filtration and dehydration to obtain a water content of the sludge of below 40%, adding an edible fungus medium (waste material), eupatorium odoratum, tobacco stem slag, fly ash, lanthanide oxides, and composite microbial strains into a material conversion machine, mixing, stirring, spraying compound microbial high-temperature strains, stacking for fermentation; the odor is eliminated after 30 min; heavy metal is passivated after 2 hours; the fermentation starts quickly; after stacking for 24 hours and 48 hours, the stack temperature is above 70 DEG C and below 85 DEG C, and the temperature is preserved for 3 days. The materials rapidly become thoroughly decomposed; with the application of the high-temperature microbial agent, cellulose substances which are difficult to decompose under natural conditions are decomposed acceleratedly as a result of the strong decomposition function of the agent. Material preparation by the sludge realizes quantitative reduction and harmless treatment, and lays a foundation for subsequent resource utilization. Materials prepared by the sludge can be further processed into biological carbon, and the like.

Description

Many bacterial classifications compound microbial high temperature is cleared up sludge harmless treatment method fast

Technical field

The present invention relates to sludge of sewage treatment plants and clear up fast, subtract the method for appearance, no stink, heavy metal-passivated, harmless treatment process fast at thermophilic fermentation.

Background technology

The sludge of sewage treatment plants treatment and disposal; Take landfill, burning, compost, thermal treatment in the past, add heat drying, add treatment processs such as alkali is stable; The mud landfill is not finally to avoid environmental pollution just to delay the time that environmental pollution produces, so landfill is not the sludge treatment best bet.

The burning facility investment is big, and running cost is higher, and the control obnoxious flavour has certain degree of difficulty.Sludge composting, floor space is big, and the spontaneous fermentation time is long, and probiotics and harmful bacterium are also deposited, and the microbiobacterial agent leavening temperature is no more than 65 ℃ mostly, and it is not thorough to become thoroughly decomposed, and heavy metals exceeding standard is difficult to the soil utilization.Thermal treatment, add heat drying.The heating power mummification.The finding mode is many in the market, for example turns round sleeve mummification, garden dish desiccation machine, low temperature fluidized-bed, paddle drying machine, fume afterheat mummification etc.But which kind of form that don't work all is to remove moisture with heat energy, is with energy replacement, " with hot heat exchange ", and be " little to change greatly ", but this is unallowed on technical concept.Result in real world applications is that efficient is low, investment is big, and running cost is high.Though application is arranged in the market, this is caving-in bash.It is stable to add alkali, handles not thoroughly, and cost is higher relatively, and fund input is relatively large.Because the singularity and the intractability of mud more than are difficult to reach minimizing, the innoxious and recycling that sludge treatment is disposed.

Summary of the invention

The present invention mainly solves be utilize many bacterial classifications compound microbial high temperature to clear up the mud process method fast it can make mud subtract appearance fast; The volume decrement of mud is to original about 1/5; Product is stable, no stink, heavy metal-passivated, pathogen-free domestic, and the sludge product purposes after the biological treatment is many.

Its process method is:

The mud of Sewage Plant carries out modification through adding properties-correcting agent to mud, with pump mud is sent into the elasticity plate-and-frame filter press then; After treating that mud is filled, the beginning filter-press dehydration reaches below 40% moisture percentage in sewage sludge, and mud is transferred pH value about 6; Add culture medium of edible fungus (waste material) 3～8%, Herba Eupatorii Odorati (pulverizing) 2～6%, tobacco rod slag 3～6%, flyash 6～10%, lanthanide oxide 0.5～1%, complex micro organism fungicide 0.3～1% gets into to mix in the material transforming machine and stirs and spray compound microbial high-temperature strain; The fermentation of banking up, stink is eliminated after 30 minutes, 2 hours post-passivation heavy metals; Fermentation starting is fast, piles up after 24 hours, and heap temperature rises 50～60 ℃; The heap temperature reaches more than 70 ℃ after 48 hours, and below 85 ℃, this temperature kept 3 days.Material becomes thoroughly decomposed soon, because after using this high temperature microbial inoculum, strong decomposition function makes difficult under field conditions (factors) material accelerate decompsn of decomposing such as cellulose substances; Material becomes thoroughly decomposed thoroughly simultaneously; Organism is degraded fast, and stink is removed rapidly, and heavy metal obtains effective passivation.Reached harmless treatment, for follow-up recycling is laid a good foundation.Fermenting process is an aerobic fermentation.Bacterial classification is 0.3～1%: 100 with the ratio of material.

The compound microbial microbial inoculum

Actinomycetes (Actinomycete); Bacillus licheniformis (Bacillus Licheniformis); Bacillus pumilus (Bacillus pumilus); Pseudomonas (Pseudomonas Preparation); Fermentation Cytophaga (Cytophaga fermentans); Pseudomonas boreopolis (Photosynthetic bacteria); Photosynthetic bacteria (Photosynthetic bacteria); White-rot fungi (Basidiomycetes); Produce yellowish fiber Zymomonas mobilis (Cellulomonas flavigena); Pantothenic acid props up genus bacillus (Bacillus pantothenticus); Bacillus megaterium (Bacillus magaterium); Thermoactinomyces (Thermophillc actinomycetes); Yeast (Yeast); Germ oligotrophy unit cell (Stenotrophomonas maitophilia); Phanerochaete chrysosporium (Phanerochaete chrysosporium); Lactobacterium acidophilum (Lactobacillus acidophilus); 17 kinds of bacterium of husky thunder bacterium (Serratia) mix to be cultivated

Said cultivation is that Actinomycete accounts for 2～6% by weight; Bacillus Licheniformis accounts for 16～20%; Bacillus pumilus accounts for 3～7%; Pseudomonas Preparation accounts for 1～5%; Cytophaga fermentans accounts for 4～11%; Photosynthetic bacteria accounts for 8～15%; Photosynthetic bacteria accounts for 3～10%; Basidiomycetes accounts for 6～14%; Cellulomonas flavigena accounts for 5～9%; Bacillus pantothenticus accounts for 2.5～5%; Bacillus magaterium accounts for 7～11%; Thermophillc actinomycetes accounts for 11～15%; Yeast accounts for 13～19%; Stenotrophomonas maitophilia accounts for 9～14%; Phanerochaete chrysosporium accounts for 4～10%; Lactobacillus acidophilus accounts for 2.5～6%; Serratia accounts for 3～8%

The explanation of the used addition material of the present invention is following:

Culture medium of edible fungus (waste material) is the dead meal behind the fruiting,

Herba Eupatorii Odorati is the wild grass of the Nature,

The tobacco rod slag is a waste,

Lanthanide oxide is a mineral substance.

Sludge product purposes after the processing according to the invention is many, the ability recycling,

Mud material after treatment; Total nutrient content is high, water ratio be low, organic content is high, pH value 6.5～8; Product is stable, no stink, pathogen-free domestic biology, heavy metal reach agricultural standards, increases soil fertility, and the soil is porous to reach soil; Reduce disease and pest; Contain the multiple beneficial microbial bacteria, can promote even, lasting, the fully absorption of crop, can prepare following product: desert afforestation modifying agent, saline-alkali soil conditioner, the quick-acting modifying agents of acid soil, special-purpose particle, charcoal, carbon rod, the fuel etc. of afforesting of beach saline land nutrition.

Claims

1. clear up sewage sludge harmlessness treatment process method fast with many bacterial classifications compound microbial high temperature, it is characterized in that:

(1), prepares burden by the per-cent of following composition weight: add culture medium of edible fungus (waste material) 3～8%, Herba Eupatorii Odorati (pulverizing) 2～6%, tobacco rod slag 3～6%, flyash 6～10%, lanthanide oxide 0.5～1%, composite microbial bacteria 0.3～1% in the sludge of sewage treatment plants;

(2), mud is carried out modification, with pump mud is sent into the elasticity plate-and-frame filter press then by adding properties-correcting agent in the said sludge of sewage treatment plants, treat that mud is filled after, the beginning filter-press dehydration reaches below 40% moisture percentage in sewage sludge;

(3), the per-cent by said weight sprays many bacterium compound microbial high-temperature strain then, in the material transforming machine, thorough mixing is even, the fermentation of banking up; Stink is eliminated after 30 minutes, 2 hours post-passivation heavy metals, and fermentation starting is fast, piles up after 24 hours; Heap temperature rises 50～60 ℃, and after 48 hours, the heap temperature reaches more than 70 ℃, below 85 ℃; This temperature kept 3 days, and material becomes thoroughly decomposed soon, because after using this high temperature microbial inoculum, strong decomposition function makes difficult under field conditions (factors) material accelerate decompsn of decomposing such as cellulose substances; Material becomes thoroughly decomposed thoroughly simultaneously, and organism is degraded fast, and stink is removed rapidly, and heavy metal obtains effective passivation.

2. clear up sewage sludge harmlessness treatment process method fast according to many bacterial classifications of the said usefulness of claim 1 compound microbial high temperature; It is characterized in that; Said many bacterial classifications compound microbial is that actinomycetes, Bacillus licheniformis, bacillus pumilus, pseudomonas, fermentation Cytophaga, northern city Zymomonas mobilis, photosynthetic bacteria, white-rot fungi, product yellowish fiber Zymomonas mobilis, pantothenic acid prop up genus bacillus, bacillus megaterium, thermoactinomyces, yeast, germ oligotrophy unit cell, Phanerochaete chrysosporium, Lactobacterium acidophilum, 17 kinds of bacterium of husky thunder bacterium and mix and cultivate, and said cultivation is that Actinomycete accounts for 2～6% by weight, Bacillus Licheniformis accounts for 16～20%, Bacillus pumilus accounts for 3～7%, Pseudomonas Preparation accounts for 1～5%, Cytophaga fermentans accounts for 4～11%, Photosynthetic bacteria accounts for 8～15%, Photosynthetic bacteria accounts for 3～10%, Basidiomycetes accounts for 6～14%, Cellulomonas flavigena accounts for 5～9%, Bacillus pantothenticus accounts for 2.5～5%, Bacillus magaterium accounts for 7～11%, Thermophillc actinomycetes accounts for 11～15%, Yeast accounts for 13～19%, Stenotrophomonas maitophilia accounts for 9～14%, Phanerochaete chrysosporium accounts for 4～10%, Lactobacillus acidophilus accounts for 2.5～6%, Serratia accounts for 3～8%.