Energy-saving brick made from sludge of sewage treatment plant and its making method

Abstract

The invention belongs to the technical field of building materials, and provides an energy-saving brick made from sludge of a sewage treatment plant and its making method. The energy-saving brick made from sludge of the sewage treatment plant is prepared from, by weight, 42-56 parts of sludge of the sewage treatment plant, 12-16 parts of Chinese herbal medicines, 6-19 parts of quick lime, 6-13 parts of oyster shell power, 1-7 parts of early strength agent, 1.05-3.07 parts of water reducing agent, 3-15 parts of fire retardant and 7-18 parts of water. The energy-saving brick made from sludge of the sewage treatment plant is provided, the problem of sludge recycling is solved, the preparation method of the energy-saving brick made from sludge of the sewage treatment plant reduces the production cycle, no sintering is needed, heat energy is also not needed, time is saved, the productivity is improved, the production cost is reduced, and more importantly, the problem that secondary pollution is caused by improper sludge treatment can be alleviated.

Description

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to an energy-saving brick manufactured by using sludge from a sewage treatment plant and a preparation method thereof. Background technique

[0002] Sludge from urban sewage plants refers to the solid, semi-solid and liquid wastes produced by sewage treatment, containing a large amount of organic matter, rich in nutrients such as nitrogen and phosphorus, heavy metals, pathogenic bacteria and pathogenic bacteria, etc. Sludge pollutants have Long-term toxicity and non-degradability, random discharge without effective treatment will easily cause secondary pollution to groundwater and land. With the popularization of sewage treatment facilities, the improvement of treatment rate and the deepening of treatment degree, the amount of sludge produced is bound to increase greatly. How to properly dispose of sludge from sewage plants and effectively use it as a new res...

Examples

preparation example Construction

[0034] According to another aspect of the present invention, there is provided the method for preparing energy-saving bricks made of sewage treatment plant sludge, the method comprising the following steps:

[0035] (1) Mix the treated sludge and treated Chinese herbal medicine with the quicklime, oyster powder, early strength agent, water reducing agent, flame retardant and water in parts by weight, stir evenly with a mixer, and feed To the brick mold, press and shape with a brick press;

[0036] (2) Curing: Put the pressed bricks in the warehouse for 2-3 days under natural conditions;

[0037] (3) Aging process: put the molded and cured bricks into a high-pressure container, and pass CO2 at room temperature 2 gas, for aging, the introduction of CO 2 Gas 2-5h.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] (1) The present invention provides energy-saving bricks made of sewage treatment plant sludge, which solves ...

Embodiment 1

[0043] The energy-saving brick manufactured by utilizing the sludge of a sewage treatment plant provided in this embodiment includes the following components in parts by weight: 56 parts of sewage treatment plant sludge, 12 parts of Chinese herbal medicine, quicklime 19 parts, 6 parts of oyster powder, 7 parts of early strength agent, 1.05 parts of superplasticizer, 15 parts of flame retardant and 7 parts of water.

[0044] The Chinese herbal medicine comprises the following components in parts by weight: 25 parts of fennel, 13 parts of saponins, 15 parts of Daqingye and 7 parts of mint.

[0045] The treatment method of the sludge is as follows: after the sludge is collected, it is washed 3 times with water; it is soaked in disinfectant for 2 hours; it is dried; it is crushed and passed through a 60-mesh sieve.

[0046] The early strength agent includes the following raw materials in parts by weight: 6 parts of aluminum sulfate, 25 parts of quick gypsum, 8 parts of sodium carb...

Embodiment 2

[0053] The energy-saving brick manufactured by utilizing the sludge of a sewage treatment plant provided in this embodiment includes the following components in parts by weight: 42 parts of sewage treatment plant sludge, 16 parts of Chinese herbal medicine, quicklime 6 parts, 13 parts of oyster powder, 1 part of early strength agent, 3.07 parts of water reducing agent, 3 parts of flame retardant and 18 parts of water.

[0054] The Chinese herbal medicine comprises the following components in parts by weight: 12 parts of fennel, 25 parts of saponins, 7 parts of Folium Folium and 15 parts of mint.

[0055] The treatment method of the sludge is as follows: after the sludge is collected, it is washed twice with water; it is soaked in disinfectant solution for 3 hours; it is dried; it is crushed and passed through a 50-mesh sieve.

[0056] The early strength agent includes the following raw materials in parts by weight: 5 parts of aluminum sulfate, 25 parts of quick gypsum, 8 parts...

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to an energy-saving brick manufactured by using sludge from a sewage treatment plant and a preparation method thereof. Background technique

[0002] Sludge from urban sewage plants refers to the solid, semi-solid and liquid wastes produced by sewage treatment, containing a large amount of organic matter, rich in nutrients such as nitrogen and phosphorus, heavy metals, pathogenic bacteria and pathogenic bacteria, etc. Sludge pollutants have Long-term toxicity and non-degradability, random discharge without effective treatment will easily cause secondary pollution to groundwater and land. With the popularization of sewage treatment facilities, the improvement of treatment rate and the deepening of treatment degree, the amount of sludge produced is bound to increase greatly. How to properly dispose of sludge from sewage plants and effectively use it as a new res...

Examples

preparation example Construction

[0034] According to another aspect of the present invention, there is provided the method for preparing energy-saving bricks made of sewage treatment plant sludge, the method comprising the following steps:

[0035] (1) Mix the treated sludge and treated Chinese herbal medicine with the quicklime, oyster powder, early strength agent, water reducing agent, flame retardant and water in parts by weight, stir evenly with a mixer, and feed To the brick mold, press and shape with a brick press;

[0036] (2) Curing: Put the pressed bricks in the warehouse for 2-3 days under natural conditions;

[0037] (3) Aging process: put the molded and cured bricks into a high-pressure container, and pass CO2 at room temperature 2 gas, for aging, the introduction of CO 2 Gas 2-5h.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] (1) The present invention provides energy-saving bricks made of sewage treatment plant sludge, which solves ...

Embodiment 1

[0043] The energy-saving brick manufactured by utilizing the sludge of a sewage treatment plant provided in this embodiment includes the following components in parts by weight: 56 parts of sewage treatment plant sludge, 12 parts of Chinese herbal medicine, quicklime 19 parts, 6 parts of oyster powder, 7 parts of early strength agent, 1.05 parts of superplasticizer, 15 parts of flame retardant and 7 parts of water.

[0044] The Chinese herbal medicine comprises the following components in parts by weight: 25 parts of fennel, 13 parts of saponins, 15 parts of Daqingye and 7 parts of mint.

[0045] The treatment method of the sludge is as follows: after the sludge is collected, it is washed 3 times with water; it is soaked in disinfectant for 2 hours; it is dried; it is crushed and passed through a 60-mesh sieve.

[0046] The early strength agent includes the following raw materials in parts by weight: 6 parts of aluminum sulfate, 25 parts of quick gypsum, 8 parts of sodium carb...

Embodiment 2

[0053] The energy-saving brick manufactured by utilizing the sludge of a sewage treatment plant provided in this embodiment includes the following components in parts by weight: 42 parts of sewage treatment plant sludge, 16 parts of Chinese herbal medicine, quicklime 6 parts, 13 parts of oyster powder, 1 part of early strength agent, 3.07 parts of water reducing agent, 3 parts of flame retardant and 18 parts of water.

[0054] The Chinese herbal medicine comprises the following components in parts by weight: 12 parts of fennel, 25 parts of saponins, 7 parts of Folium Folium and 15 parts of mint.

[0055] The treatment method of the sludge is as follows: after the sludge is collected, it is washed twice with water; it is soaked in disinfectant solution for 3 hours; it is dried; it is crushed and passed through a 50-mesh sieve.

[0056] The early strength agent includes the following raw materials in parts by weight: 5 parts of aluminum sulfate, 25 parts of quick gypsum, 8 parts...