Dewatered sludge landfill method

A technology for dewatering sludge and sludge, applied in dehydration/drying/concentrated sludge treatment, water/sludge/sewage treatment, sludge treatment, etc., can solve problems such as insufficient strength, impact on the environment, coverage, etc., and achieve increased Overall stability, the effect of preventing environmental pollution problems

Active Publication Date: 2009-07-22
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology

The soil mechanics index of the sludge has a great influence on the stability of the sludge landfill and the landfill operation. The main problem of the high water content sludge landfill is that the strength is not enough to carry out the landfill operation.
Secondly, after the sludge is landfilled, it will produce serious odor, but the tradit

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] A method for landfilling dewatered sludge, comprising the following steps: A, discharging the incoming sludge into a silo 1, the bottom of the silo 1 is provided with an opening to connect with the sludge conveying pipeline 2; B, placing the geotextile bag 3 in the In the landfill, the geotextile bag 3 is provided with a plurality of feed openings 4 on one side, generally 1.5m-10m wide and 10m-60m long. Geotextile bags are made of woven geotextiles, or long and short fiber needle-punched non-woven geotextiles. C. Connect the sludge conveying pipe to the feed port of the geotextile bag; D. Load the sludge in the silo into the geotextile bag 3 through the sludge conveying pipe under the action of the external force 5 . Geotextile bags are generally 1.5m to 10m wide and 10m to 60m long. The sludge has been dehydrated to a moisture content of 60-90...

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Abstract

The invention discloses a dewatered sludge landfill method which comprises the following steps: A. incoming sludge is discharged into a material cabin; and the bottom part of the material cabin is provided with a cut connected with a sludge transmission pipeline; B. a geotextile bag is arranged in a landfill yard; and one side of the geotextile bag is provided with at least one feed port; C. the sludge transmission pipeline is connected to the feed port of the geotextile bag; and D. the sludge in the material cabin is filled into the geotextile bag by the sludge transmission pipeline under anexogenic action. The method solves the sludge paving problem during the landfill operation, realizes the goal of rain water and sewage separation, prevents the environmental pollution problem caused by the odor dispersing of the traditional sludge landfill, and increases the integral stability of sludge pile. The dewatered sludge landfill method overcomes the operation of the traditional sludge landfill, the water and sewage separation, the odor control and the pile stability problems, and is suitable to be used on the landfill yards for the sludge of various types and solid wastes.

Description

Technical field: [0001] The invention relates to the technical field of dewatering sludge treatment in urban sewage plants, in particular to a method for landfilling dewatered sludge in urban sewage plants with a moisture content of 60-90%. Background technique: [0002] At present, there are many sludge treatment and disposal methods at home and abroad. Generally, some of the different treatment and disposal methods such as concentration, digestion, dehydration, drying, incineration, composting and landfill are combined into a specific treatment process. In sludge treatment, there are generally two methods of concentration and dehydration, and there are many options for subsequent treatment and disposal. [0003] The selection of sludge treatment process is closely related to the selection of sludge disposal methods, and there can be different combinations. The choice of disposal method is restricted by local natural, economic, political and other conditions. For example,...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/12
CPCY02W30/30
Inventor 方建民卢成洪姚远
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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