Filamentous micron-sized activated carbon adhesive base water treatment filler based on three-dimensional structure

A three-dimensional, micron-scale technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., to achieve the effect of fast biofilm formation, good stability and good formation conditions

Pending Publication Date: 2018-11-23
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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  • Filamentous micron-sized activated carbon adhesive base water treatment filler based on three-dimensional structure
  • Filamentous micron-sized activated carbon adhesive base water treatment filler based on three-dimensional structure

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Embodiment 1

[0029] (1) Adopt 75% of high molecular polymer mass fractions such as polyethylene or polypropylene and 25% of limestone powder of 150-200 purpose to mix and granulate;

[0030] (2) Production of carrier filaments in the form of hot-melt extrusion: extrude a single filament through a hot-melt extruder, use a square mold before cooling completely, and stack it into a three-dimensional structure, and at the same time form a gap between the filaments Spacing, set by water cooling;

[0031] (3) configuration mass fraction is the PVA aqueous solution of 5-7%;

[0032] (4) uniformly spray (3) the PVA aqueous solution on the surface of (2) the mesh carrier by spraying to form a thin PVA liquid surface;

[0033] (5) Utilize spraying method, be that the activated carbon powder of 150-200 purpose is evenly sprayed on the surface of the mesh carrier (4) with PVA liquid thin layer, thickness is controlled at 0.2mm.

[0034] (6) Soak (5) in a saturated boric acid solution, and use boric ...

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Abstract

The invention discloses a filamentous micron-sized activated carbon adhesive base water treatment filler based on a three-dimensional structure and belongs to the field of sewage and wastewater treatment. A carrier framework material having the three-dimensional structure with a filamentous form as an essential feature is characterized in that thin layer PVA is used as an adhesive base material onthe basis of a specific framework material; micron-sized activated carbon fine particles are applied to the surface of the adhesive base material; the micron-sized activated carbon fine particles arestably bonded to the surface of a filamentous carrier framework material with the three-dimensional structure by PVA cross-linking process, and finally filler with the micron-sized activated carbon fine particle surface and the three-dimensional structure is formed. The filler has better hydraulic structural characteristics and an activated carbon surface suitable for bacteria attached growth, issuitable for sewage and wastewater biological treatment and is especially used for aerobic conditions in an extendable manner.

Description

technical field [0001] The invention belongs to the field of sewage and waste water treatment, in particular to a three-dimensional structure-based filiform micron-scale activated carbon fixation-based water treatment filler. 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 reactio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/12Y02W10/10
Inventor 杨宏王佳伟王少伦周亚坤王晓曈
Owner BEIJING UNIV OF TECH
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