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Cylindrical mesh tube based micron order activated carbon adhesive base water treatment filler

A micron-scale, activated carbon technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve good stability, good formation conditions, and fast biofilm formation

Pending Publication Date: 2018-12-28
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, so far, various methods of use are limited to the use of activated carbon itself in the form of granules, balls, or strips of activated carbon, while water treatment materials with a certain hydraulic characteristic structure and excellent characteristics of activated carbon have always been used. is the pursuit of the industry

Method used

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  • Cylindrical mesh tube based micron order activated carbon adhesive base water treatment filler
  • Cylindrical mesh tube based micron order activated carbon adhesive base water treatment filler

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Based on cylindrical network tube micron activated carbon immobilization base water treatment packing (see attached figure 1 and partial enlargement figure 2 )preparation:

[0030] (1) Adopt 70% of high molecular polymer mass fractions such as polyethylene or polypropylene and 30% of 200 mesh limestone powders to mix and granulate;

[0031] (2) Use the hot-melt extrusion mesh die to rotate into a cylinder to make a mesh straight carrier: through the mesh die of the hot-melt extruder, rotate and extrude, stretch, and make the mesh into a uniform diamond shape. The shape is set by water cooling; the high-fin fins are prepared by deepening the corresponding mold holes according to the mold.

[0032] (3) After shaping, the surface of the net-shaped straight cylinder structure carrier is naturally or artificially air-dried for use;

[0033] (4) configuration mass fraction is the PVA aqueous solution of 6%;

[0034] (5) uniformly spray (4) the PVA aqueous solution on the...

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Abstract

The invention discloses a cylindrical mesh tube based micron order activated carbon adhesive base water treatment filler and belongs to the field of sewage and wastewater treatment. The filler is wholly of a meshed round straight tube structure, the wall of the round straight tube is of a meshed structure, and the meshed structure is formed by filaments, namely netting wires. Meanwhile, a high-finrib is arranged on the outer surface of the meshed round straight tube structure in the netting wire direction every several netting wires (preferably every two), a dense activated carbon layer composed of micron order activated carbon granules is attached to the surface of the netting wires and the high-fin ribs by virtue of PVA (Polyvinyl Alcohol) materials, and the filler is formed by activated carbon powdered granules when seen from the whole surface. Due to excellent hydraulic structural characteristics, the filler has the activated carbon surface suitable for bacterial adhesion growth,is suitable for biological sewage and wastewater treatment, and particularly can be extended to aerobic conditions.

Description

technical field [0001] The invention belongs to the field of sewage and waste water treatment, in particular to a water treatment filler based on a cylindrical network tube micron-scale activated carbon immobilization base. Background technique [0002] At present, the biological fillers used in the field of sewage and wastewater treatment are mainly divided into two categories, one is soft fillers, including soft combinations and fixed types, and the other is rigid or semi-soft fillers. The present invention is mainly aimed at rigid Or semi-soft filler problems and invented. At present, the main product categories of these packings include: Pall rings, multi-faceted hollow spheres, Haier rings, stepped rings, Taylor rosettes, conjugated rings, Raschig rings, etc. The design of these fillers mainly pursues the specific surface area of ​​the material and the renewal of the biofilm, as well as the suspension flow state of the filler under the hydraulic impact in the reaction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCC02F3/00
Inventor 杨宏
Owner BEIJING UNIV OF TECH
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