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Solidification treatment method of industrial sludge

An industrial sludge solidification treatment technology, applied in sludge treatment, fixed/solidified sludge treatment, water/sludge/sewage treatment, etc., can solve the problem of poor sludge landfill effect, long time required for solidification, Reduce curing efficiency and other issues, to achieve the effect of easy landfill, short curing time, and improve curing effect

Pending Publication Date: 2021-12-17
ANJIEYU BEIJING OILFIELD TECHNICAL SERVICES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of solidification treatment method of industrial sludge, to solve the problem that the solidification time required for the existing industrial sludge solidification treatment proposed in the above-mentioned background technology is long, thereby reducing the solidification efficiency, and the solidification after solidification Poor strength, resulting in poor effect of sludge landfill

Method used

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  • Solidification treatment method of industrial sludge

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Experimental program
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Effect test

Embodiment 1

[0041] S1: The industrial sludge in the sludge tank is transported to the filter press through the sludge pump for press filtration. The filter press is a plate and frame filter press, which is initially dried to obtain industrial sludge cake, industrial sludge The water content of the mud cake is 80%, which reduces the water content of industrial sludge;

[0042] S2: The industrial sludge sludge cake obtained in step S1 is transported to the mixer by a screw conveyor, and a sludge solidifying agent is added to the mixer. The mass ratio of the industrial sludge sludge cake to the sludge solidifying agent is 100:2, The sludge curing agent is made of the following components by weight: 20kg of coal gangue, 15kg of fly ash, 5kg of quartz powder, 1kg of ferric chloride, 3kg of gypsum, and 1kg of phosphoric acid. The above raw materials are uniformly mixed to obtain the sludge curing agent ;

[0043] S3: Stir the industrial sludge cake and the sludge solidifying agent evenly with ...

Embodiment 2

[0046] S1: The industrial sludge in the sludge tank is transported to the filter press through the sludge pump for press filtration. The filter press is a plate and frame filter press, which is initially dried to obtain industrial sludge cake, industrial sludge The water content of the mud cake is 80%, which reduces the water content of industrial sludge;

[0047] S2: The industrial sludge sludge cake obtained in step S1 is transported to the mixer by a screw conveyor, and a sludge curing agent is added to the mixer. The mass ratio of the industrial sludge sludge cake to the sludge curing agent is 100:4, The sludge curing agent is made of the following components by weight: 20kg of coal gangue, 15kg of fly ash, 5kg of quartz powder, 1kg of ferric chloride, 3kg of gypsum, and 1kg of phosphoric acid. The above raw materials are uniformly mixed to obtain the sludge curing agent ;

[0048] S3: Stir the industrial sludge cake and the sludge solidifying agent evenly with a mixer, a...

Embodiment 3

[0051] S1: The industrial sludge in the sludge tank is transported to the filter press through the sludge pump for press filtration. The filter press is a plate and frame filter press, which is initially dried to obtain industrial sludge cake, industrial sludge The water content of the mud cake is 80%, which reduces the water content of industrial sludge;

[0052] S2: The industrial sludge sludge cake obtained in step S1 is transported to the mixer by a screw conveyor, and a sludge solidifying agent is added to the mixer. The mass ratio of the industrial sludge sludge cake to the sludge solidifying agent is 100:2, The sludge curing agent is made of the following components by weight: 25kg of coal gangue, 20kg of fly ash, 7.5kg of quartz powder, 2kg of ferric chloride, 4kg of gypsum, and 2kg of phosphoric acid. Mix the above materials evenly to obtain sludge solidification agent;

[0053] S3: Stir the industrial sludge cake and the sludge solidifying agent evenly with a mixer,...

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Abstract

The invention belongs to the technical field of industrial sludge solidification, and particularly relates to an industrial sludge solidification treatment method. The method comprises the following steps: S1, conveying industrial sludge in a sludge tank into a filter press through a sludge pump for filter pressing to obtain an industrial sludge cake; S2, conveying the industrial sludge cake obtained in the step S1 into a stirrer through a screw conveyor, and adding a sludge curing agent into the stirrer; S3, uniformly stirring the industrial sludge cake and a sludge curing agent through a stirrer, preliminarily drying the industrial sludge through a filter press to obtain the industrial sludge cake, enabling the water content of the industrial sludge cake to reach 75-80%, adding the sludge curing agent into the industrial sludge cake, carrying out mixing and stirring, and carrying out natural curing, so the industrial sludge has a good solidification effect, landfill is facilitated, the solidified industrial sludge is lower in water content and better in strength, and the situation that the land subjected to sludge landfill becomes a dead land is avoided.

Description

technical field [0001] The invention relates to the technical field of solidification of industrial sludge, in particular to a solidification treatment method of industrial sludge. Background technique [0002] Sludge is solid, semi-solid and liquid waste generated during sewage treatment. With the acceleration of the industrial process and the development of the sewage treatment industry, the volume and degree of sewage treatment are continuously increasing, and the resulting sludge output is increasing day by day. The amount of industrial sludge to be treated is huge. Sludge treatment is the implementation guarantee for the final realization of sewage treatment and an important link in the national water treatment field. As the final product of water treatment, sludge has complex components, high moisture content, and high organic matter content. , strong hydrophilicity, difficult dehydration, easy to stink, serious pollution and other characteristics. The moisture conte...

Claims

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Application Information

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IPC IPC(8): C02F11/123C02F11/00
CPCC02F11/123C02F11/008
Inventor 严希海严谨陈燕
Owner ANJIEYU BEIJING OILFIELD TECHNICAL SERVICES CO LTD