Air expansion self-floating sludge dewatering treatment process

A technology for sludge dehydration and treatment process, which is applied in the directions of sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc. Water is difficult to separate and other problems, to improve the dehydration efficiency, speed up the dehydration efficiency, and avoid the effect of bursting

Inactive Publication Date: 2021-02-19
徐强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Because the sludge is relatively thick, it is difficult to separate the internal water, and because the water content of the sludge is too high, it is difficult to dewater the above sludge, and the dehydration efficiency is low

Method used

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  • Air expansion self-floating sludge dewatering treatment process
  • Air expansion self-floating sludge dewatering treatment process
  • Air expansion self-floating sludge dewatering treatment process

Examples

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Embodiment 1

[0050] see figure 1 , an air-expanding self-floating sludge dewatering process, comprising the following steps:

[0051] S1. First, the sludge is left to settle, and the obviously layered sewage on the surface is discharged to obtain the sludge in a thick state;

[0052] S2, then evenly lay the inflatable floating ball at the bottom of the sewage dewatering tank, and then pass the sludge in a thick state into the dehydrating tank;

[0053] S3. The air-expanded floating ball gradually absorbs the water in the thick sludge, and then the gas overflows from the inside to make it expand in volume;

[0054] S4. Heat the inner wall of the dehydration tank, so that the temperature of the air-expanding float rises significantly, and the gas inside is heated and expands, making its volume further increase, so that the air-expanding float gradually floats from the bottom up until it floats on the thick sludge s surface;

[0055] S5. Pick up the obviously larger air-inflated float floa...

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Abstract

The invention discloses an air-expansion self-floating sludge dewatering treatment process, belongs to the field of sludge treatment, and particularly relates to an air expansion self-floating sludgedewatering treatment process which comprises the following steps: adding an air expansion floating ball in the dewatering process, so that water absorbed by the air expansion floating ball can be in direct contact with sludge, thereby adsorbing moisture in the sludge and transporting the sludge into the air expansion floating ball, the air production inner core in the air expansion floating ball reacts with water, carbon dioxide air overflows, and along with increase of the water absorption capacity, the amount of the overflowing air is increased as well, so that the expansion degree of the expansion air layer is gradually increased, namely the overall volume of the air expansion floating ball is gradually increased, and the air expansion floating ball floats upwards in sludge; on one hand, the process is a process of absorbing moisture in the sludge, and is also process of consuming moisture, and thus the sludge dewatering efficiency is obviously improved; on the other hand, when theair expansion floating ball floats up to the surface of the sludge, a worker can recover and replace the air expansion floating ball in time, that is, the recovery difficulty is low, and the overall dehydration efficiency of the sludge is further improved.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to an air-expanding self-floating sludge dehydration treatment process. Background technique [0002] Sludge refers to the sediment, particulate matter and floating matter produced when wastewater is treated by physical methods, chemical methods, physical chemical methods and biological methods. Sludge generally refers to thick matter between liquid and solid, which can be transported by pump, but it is difficult to separate solid and liquid by sedimentation. The concentration of suspended solids is generally 1%-10%, below this concentration is often called mud. Due to the different sources of sludge and different water treatment methods, the properties of the sludge produced are different. There are many types of sludge, and the classification is more complicated. Generally, it can be classified according to the following methods. [0003] According to the source of sludge, there ...

Claims

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Application Information

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IPC IPC(8): C02F11/121C02F11/13
CPCC02F11/121C02F11/13
Inventor 徐强黄传来张黔
Owner 徐强
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