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Scrubbing process and device for fine sands with surfaces being adsorbed with organic matter

A scrubbing device and organic matter technology, applied in water pollutants, immiscible solvent sludge treatment, dehydration/drying/concentrated sludge treatment, etc., can solve problems such as stripping, secondary pollution, and non-environmental protection, and achieve prevention Precipitation, ensure uniformity, low cost effect

Pending Publication Date: 2016-12-14
SAFECLEEN TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the field of environmental protection, the main component of some slurry to be treated is fine sand with organic matter and other impurities (usually sludge) attached to the surface. How to remove organic matter and fine sand is an urgent problem to be solved at present. The cleaning of organic matter on the surface of fine sand will cause secondary pollution, which is not in line with the original intention of environmental protection. Therefore, the organic matter and fine sand can only be peeled off by physical methods. However, the fine sand is in a state of being wrapped, and the organic matter has a certain viscosity. Stripped by conventional physical measures (eg, centrifugation)

Method used

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  • Scrubbing process and device for fine sands with surfaces being adsorbed with organic matter
  • Scrubbing process and device for fine sands with surfaces being adsorbed with organic matter

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Embodiment Construction

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] A scrubbing process for surface-attached organic fine sand, comprising the following steps: centrifugal sedimentation of the to-be-treated slurry with organic fine sand attached to the surface, and stirring and scrubbing the concentrated solution after the centrifugal sedimentation and coarse sand 4 of a certain particle size together, The solution after stirring and scrubbing is sieved out fine sand and organic matter, and the coarse sand 4 is left for reuse, and the above process is cycled several times.

[0022] Although the fine sand has a certain hardness and edges, it still cannot be scrubbed in the scrubbing machine 5 when it is wrapped with organic matter. Adding coarse sand 4 as a scrubbing auxiliary material can easily peel off the fine sand and organic matter under stirring conditions, and Since the particle sizes of coarse sand 4 and fi...

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Abstract

The invention relates to a scrubbing process and device for fine sands with surfaces being adsorbed with organic matter. To-be-treated slurry with the fine sands with the surfaces being adsorbed with the organic matter is subjected to centrifugal sedimentation, a concentrated solution obtained after centrifugal sedimentation is completed and coarse sands with a certain grain size are stirred and scrubbed at the same time, a solution obtained after stirring and scrubbing are carried out is sieved to remove the fine sands and the organic matter, the coarse sands are left to be reused, and the procedures are cycled for a plurality of times. By means of the scrubbing process and device, the organic matter and the fine sands which are bonded together are peeled off through a physical measure, the cost is low, and the efficiency is high.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a scrubbing process and device for surface-attached organic fine sand. Background technique [0002] In the field of environmental protection, the main components of some slurries to be treated are fine sand with impurities such as organic matter (usually sludge) attached to the surface. How to peel off the organic matter and fine sand is an urgent problem to be solved at present. The cleaning of organic matter on the surface of fine sand will cause secondary pollution, which is not in line with the original intention of environmental protection. Therefore, the organic matter and fine sand can only be peeled off by physical methods. However, the fine sand is in a wrapped state, and the organic matter has a certain viscosity. Peel off by conventional physical measures (eg, centrifugation). SUMMARY OF THE INVENTION [0003] The purpose of the present invention...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F11/00C02F101/30
CPCC02F11/002C02F11/121C02F11/127C02F2101/30
Inventor 刘学进陈益人张民傅磊黄蕾刘本森
Owner SAFECLEEN TECH
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