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A method of solidifying sludge as landfill waste

A technology for landfilling garbage and sludge, which is applied in chemical instruments and methods, sludge treatment, biological sludge treatment, etc. It can solve the problems of low water content efficiency and difficult resource utilization, and achieve low cost and high treatment efficiency. High, overcome the effect of low efficiency

Active Publication Date: 2021-07-16
GUANGXI NANNING WATERWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing problems of low moisture content reduction efficiency and difficult resource utilization after landfill, the present invention provides a method of solidifying sludge as landfill garbage to improve sludge treatment efficiency

Method used

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  • A method of solidifying sludge as landfill waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Based on 100 parts of sludge, prepare materials according to the following components by mass:

[0021] 10 parts of sodium carboxymethyl cellulose Ⅰ, 5 parts of sodium carboxymethyl cellulose Ⅱ, 2 parts of sodium carboxymethyl cellulose Ⅲ, 4 parts of fulvic acid, 8 parts of Bacillus amyloliquefaciens, 4 parts of Lactobacillus acidophilus, 2 parts of peptone, 10 parts of sepiolite powder with a particle size of 150 mesh, and 12 parts of activated carbon with a particle size of 320 mesh;

[0022] (2) Add the sodium carboxymethyl cellulose Ⅰ of step (1) to 100 parts of sludge, keep stirring for 40 minutes, then add fulvic acid and sodium carboxymethyl cellulose II in turn, keep stirring for 40 minutes, then add Bacillus amyloliquefaciens and peptone, continue to feed hot air at 30°C and supply oxygen for 24 hours, stir occasionally during the period, then let it stand and filter, discard the liquid, then add carboxymethylcellulose sodium III to the sludge, and continue...

Embodiment 2

[0025] (1) Based on 100 parts of sludge, prepare materials according to the following components by mass:

[0026] 8 parts of sodium carboxymethyl cellulose Ⅰ, 3 parts of sodium carboxymethyl cellulose Ⅱ, 1 part of sodium carboxymethyl cellulose Ⅲ, 3.5 parts of fulvic acid, 7 parts of Bacillus amyloliquefaciens, 2 parts of Lactobacillus acidophilus, 1.5 parts of peptone, 8 parts of sepiolite powder with a particle size of 100 mesh, and 10 parts of activated carbon with a particle size of 300 mesh;

[0027] (2) Add the sodium carboxymethyl cellulose Ⅰ of step (1) to 100 parts of sludge, keep stirring for 30 minutes, then add fulvic acid and sodium carboxymethyl cellulose II in turn, keep stirring for 30 minutes, then add Bacillus amyloliquefaciens and peptone, continue to feed hot air at 28°C and supply oxygen for 30 hours, stir occasionally during the period, then let it stand and filter, discard the liquid, then add sodium carboxymethylcellulose III to the sludge, and continu...

Embodiment 3

[0030] (1) Based on 100 parts of sludge, prepare materials according to the following components by mass:

[0031] 12 parts of sodium carboxymethyl cellulose Ⅰ, 6 parts of sodium carboxymethyl cellulose Ⅱ, 3 parts of sodium carboxymethyl cellulose Ⅲ, 5 parts of fulvic acid, 10 parts of Bacillus amyloliquefaciens, 6 parts of Lactobacillus acidophilus, 3 parts of peptone, 13 parts of sepiolite powder with a particle size of 200 mesh, and 15 parts of activated carbon with a particle size of 350 mesh;

[0032] (2) Add the sodium carboxymethyl cellulose I of step (1) to 100 parts of sludge, keep stirring for 50 minutes, then add fulvic acid and sodium carboxymethyl cellulose II in turn, keep stirring for 50 minutes, then add Bacillus amyloliquefaciens and peptone, continue to feed hot air at 35°C and supply oxygen for 12 hours, stir occasionally during the period, then let stand and filter, discard the liquid, then add carboxymethylcellulose sodium III to the sludge, and continue s...

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Abstract

The invention discloses a method for solidifying sludge as landfill garbage. Adding sodium carboxymethyl cellulose I to the sludge successively, then adding fulvic acid and sodium carboxymethyl cellulose II, adding Bacillus amyloliquefaciens and peptone , then add carboxymethylcellulose sodium III and Lactobacillus acidophilus to the sludge, and finally add sepiolite powder under stirring conditions, spread activated carbon on the sludge surface, let it stand for several hours, filter off the liquid, and complete the treatment. Sludge treatment. The invention specifically limits the timing of adding each component, and strictly limits the processing time of each stage, the moisture content can be reduced to below 28%, and there is no pollution to the environment, no odor release, and after 50 days of landfill, the dry material in the farmland It has been decomposed, which improves the utilization value of the treated sludge. The treatment method of the invention has the advantages of simple raw materials, easy operation control, low cost, high treatment efficiency and the like.

Description

technical field [0001] The invention relates to a method for solidifying sludge as landfill garbage, and belongs to the technical field of sludge treatment. Background technique [0002] At present, with the continuous advancement of urbanization and people's increasing concern for environmental protection, the sludge generated in the process of urban domestic sewage treatment and its disposal have become an increasingly serious problem. In recent years, although my country has carried out a lot of work in the treatment and disposal of sludge, due to economic and technological reasons, my country's sludge treatment capacity is still very weak, mainly in: 1. The sludge treatment rate is extremely low; 2. Heavy water is light The development of mud and sludge treatment lags behind; 3. The technical route is mechanical; 4. It is difficult to supervise; 5. The investment is small and the policy is not perfect. [0003] Due to the management and technical defects related to sewag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/04C02F11/121
CPCC02F11/04C02F11/12
Inventor 梁虹林思远许谦丘梅
Owner GUANGXI NANNING WATERWORKS CO LTD
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