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A kind of special reagent for sludge treatment and using method thereof

A sludge treatment and reagent technology, which is applied in the field of special reagents for sludge treatment, can solve the problems of high water content in sludge, long cycle of repeated development and utilization, poor engineering properties, etc.

Active Publication Date: 2020-07-14
YANGTZE NORMAL UNIVERSITY
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Problems solved by technology

However, this method and the equipment used in the method cannot carry out deep dehydration of the sludge. The treated sludge has high water content and poor engineering properties. Compared with the sludge after deep dehydration, it will still occupy a larger stacking area. Large size, long cycle of repeated development and utilization, etc.

Method used

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  • A kind of special reagent for sludge treatment and using method thereof
  • A kind of special reagent for sludge treatment and using method thereof

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] During specific implementation: if figure 1 with figure 2 As shown, a special reagent for sludge treatment is characterized in that the composition and mass ratio of the special reagent are 120-300 parts of cement, 250-500 parts of quicklime, 0.5-3.0 parts of aluminum powder, and 3-3 parts of water reducing agent. 6 parts, quick setting agent 5~10 parts and foam stabilizer 0.02~0.1 parts.

[0032]In this technical solution, the cement in the special reagent can reduce the hydrophilicity of the sludge, increase the hardness and brittleness of the sludge, and increase the strength of the sludge; pollution; aluminum powder can foam the silt, generate a large number of air bubbles when the silt hardens, form a large number of connected pores, form a rope head channel, and increase the permeability of the silt; the water reducer can increase the surface ...

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Abstract

The invention discloses a reagent special for sludge treatment. The reagent comprises the following components in parts by mass: 120-300 parts of cement, 250-500 parts of quick lime, 0.5-3.0 parts of aluminum powder, 3-6 parts of a water reducing agent, 5-10 parts of a setting accelerator and 0.02-0.1 parts of a foam stabilizer. The invention also provides a use method of the reagent special for sludge treatment. The reagent provided by the invention has characteristics that a sludge dewatering rate can be increased, the dewatered sludge has less residual moisture, and the dewatered sludge can have a better engineering property.

Description

technical field [0001] The invention relates to the technical field of sludge treatment; in particular, it relates to a special reagent for sludge treatment and a use method thereof. Background technique [0002] my country's rapid economic development has brought about a climax in the construction of water conservancy and port waterways. During the dredging and widening of various rivers and waterways, as well as in the construction and expansion of ports, a large amount of waste silt is inevitably produced. According to incomplete statistics, the discarded silt in my country reaches hundreds of millions of cubic meters every year: a considerable amount of silt is produced in coastal areas such as the East China Sea and the North Sea. The amount of silt produced by the dredging works of the river course is also considerable. At present, most of the inland dredged silt is discarded in landfill or low-lying areas, and some occupy the original fish ponds or cultivated fields. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
CPCC02F11/00C02F11/008C02F2303/04
Inventor 文桃刘东升应赛熊平张宇宁王升赵成功舒云建
Owner YANGTZE NORMAL UNIVERSITY
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