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Solid-liquid separation method for high-water-content soft material

A technology of solid-liquid separation and materials, applied in the fields of soil protection, construction, infrastructure engineering, etc., can solve the problems of long construction period, non-remedial, high cost, etc., and achieve the effect of short construction period, high processing efficiency and low investment cost

Active Publication Date: 2021-11-23
连云港巨基岩土工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of long construction period, high cost and no permanent cure in the existing solid-liquid separation technology, the present invention provides a solid-liquid separation method for soft materials with high water content

Method used

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  • Solid-liquid separation method for high-water-content soft material
  • Solid-liquid separation method for high-water-content soft material
  • Solid-liquid separation method for high-water-content soft material

Examples

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Embodiment 1

[0044] Example 1: Treatment of industrial solid waste with high water content

[0045] Chemical enterprises are major environmental polluters, especially solid wastes with high moisture content, muddy or pasty industrial wastes discharged by such enterprises, which seriously pollute water bodies and soils. For the harmless treatment and comprehensive utilization of resources of this type of waste, solid-liquid separation must be carried out first, and the separated solid materials can be used as resources. After the waste water is harmless treated, it can be used for other effective uses or discharge up to the standard. For large volumes of solid waste, the commonly used solid-liquid separation method is physical filtration with conventional equipment, which has problems such as low efficiency, long construction period, and high cost. For large volumes of soft materials with high water content, how to achieve solid-liquid separation efficiently and at low cost has become an urg...

Embodiment 2

[0078] Embodiment two: the treatment of lake bottom sludge

[0079] The maximum storage area of ​​a lake is about 8×10 4 m 2 , the maximum storage capacity is about 3×10 8 m 3 , located at the junction of the two provinces, plays a multi-functional role in flood control, water storage, irrigation, and power generation. There are many agricultural product processing and breeding industries along the tributaries of the lakes in the two places. Due to extensive management and disorderly discharge, the sediment in the reservoir area is increasing and the storage capacity is decreasing, causing environmental pollution. Sediment, as a component of a lake ecosystem, is a transition zone for material exchange at the sediment-water interface. There are a lot of nutrients in the lake sediment, which can meet the growth needs of plants and animals in the water body. In recent years, due to the aggravation of pollution, the increase of N and P content in the water body has made the e...

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Abstract

The invention provides a solid-liquid separation method for a high-water-content soft material. The method comprises the following steps of: in a pretreatment step, arranging a closed cofferdam or an underground sealing wall around a construction site, arranging drainage devices around the closed cofferdam or the underground sealing wall, and preparing for a tamping drainage step through pre-drainage operation and laying a solid material on the soft material; and in the tamping drainage step, applying a vertical power load to the soft material by construction equipment for initial light tamping, and then increasing tamping energy step by step, so that a liquid phase and a gas phase in the high-water-content soft material are gradually diffused around through cracks of the underground soft material under the action of instantaneous low-potential-energy shock waves, and are discharged through the drainage devices arranged around. The solid-liquid separation method provided by the invention is a pure physical technical scheme of abandoning high-energy-consumption materials in the whole process, and has the advantages of good treatment effect, low investment cost and short construction period through tamping and pumping at the same time, and is beneficial to promoting the reduction and recycling comprehensive utilization of high-water-content solid waste.

Description

technical field [0001] The invention relates to a solid-liquid separation technology for soft materials such as industrial solid waste with high water content, urban black and odorous sludge, lake and river bottom mud, and beach mud, and specifically relates to a solid-liquid separation technology for high water content soft materials based on an in-situ tamping process method. Background technique [0002] Generally, industrial solid waste with high water content, especially industrial solid waste containing harmful media, urban black and odorous sludge, etc., requires harmless reduction treatment and comprehensive utilization of resources. Conventional technologies generally use physical methods to filter, such as: For the accumulated industrial solid waste with high water content, the solution of long-arm excavator + plate and frame filter press is adopted. The long-arm excavator will dig out the accumulated industrial solid waste, which usually needs to be diluted before...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10E02D19/04E02D3/046
CPCE02D3/10E02D19/04E02D3/046
Inventor 丁思华丁锦良王强
Owner 连云港巨基岩土工程有限公司