Course bamboo fiber sewage treatment filler and preparation method thereof

A sewage treatment, bamboo fiber technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., to achieve strong corrosion resistance, improved removal effect, and enhanced contact opportunities

Active Publication Date: 2013-06-12
无锡米尔环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In terms of bamboo fiber processing and preparation technology, domestic and foreign patents mainly focus on the fine processing of bamboo fine fibers; in ...

Method used

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  • Course bamboo fiber sewage treatment filler and preparation method thereof
  • Course bamboo fiber sewage treatment filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1 Preparation of coarse bamboo fiber sewage treatment filler

[0041] (1) Raw material selection and cutting and sectioning: select moso bamboos of 3 to 5 years old, cut and section along the bamboo joints, and classify and store according to the length of the bamboo after cutting. (2) Mechanical rolling and loosening treatment: Mechanical rolling treatment is carried out on the segmented bamboo, and it is transported to the separator for loosening treatment. (3) Hydrothermal-chemical softening treatment under strong alkali conditions: Under the condition of normal pressure and 90 °C, soak the bamboo after loosening treatment in a caustic soda solution with a concentration of 25% by mass for 6 h. (4) Fiber carding treatment: The softened bamboo is transported to a fiber carding machine for fiber carding treatment to obtain bamboo-based thick bamboo fibers with diameters of 0.9 mm and 0.7 mm, respectively.

[0042] The bioelastic filler is obtained by using the th...

Embodiment 2

[0043] Example 2 Preparation of coarse bamboo fiber sewage treatment filler

[0044] (1) Raw material selection and cutting and sectioning: select moso bamboos of 3 to 5 years old, cut and section along the bamboo joints, and classify and store according to the length of the bamboo after cutting. (2) Mechanical rolling and loosening treatment: Mechanical rolling treatment is carried out on the segmented bamboo, and it is transported to the separator for loosening treatment. (3) Hydrothermal-chemical softening treatment under strong alkali conditions: soak the bamboo after loosening treatment in 25% lime aqueous solution with a mass percentage concentration of 25% at 0.75 MPa and 185 °C for 6 min; (4) Fiber carding treatment: The softened bamboo is transported to a fiber carding machine for fiber carding treatment to obtain bamboo-based thick bamboo fibers with diameters of 0.9 mm and 0.7 mm, respectively.

[0045] The bioelastic filler is obtained by using the thick bamboo fi...

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Abstract

The invention discloses a course bamboo fiber sewage treatment filler and a preparation method thereof. The sewage treatment filler uses course bamboo fibers as base materials, and is a biological elastic or combined filler which is prepared by uniformly inserting and fixing the course bamboo fibers used as the base materials on a center rope or embedding the course bamboo fibers in a fixed tray surface, and the course bamboo fibers are vertically and uniformly arranged to form a radial structure. By adopting the sewage treatment filler to treat sewage, the starting time of a bioreactor is shortened by seven days compared with that of the bioreactor using a conventional organic elastic filler; and compared with the conventional organic elastic filler, the chemical oxygen demand and the average ammonia-nitrogen removal effect are obviously improved. Because of the difference of the flexibility of the course bamboo fibers, the course bamboo fibers are uniformly distributed and fully unfolded in the bioreactor after film hanging, agglomeration is avoided, the space is fully used, the probability for microbes to contact with sewage is enhanced, and the mass transfer function is enhanced.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to a sewage biological filler and a preparation method thereof; in particular, it relates to a coarse bamboo fiber sewage treatment filler and a preparation method thereof. Background technique [0002] Sewage treatment Biofilm method is a sewage biological treatment technology developed side by side with activated sludge method, including biological filter, biological turntable, biological contact oxidation tank, aerated biological filter and biological fluidized bed and other process forms. Its common characteristics It is the growth of microorganisms on the surface of the filler to form a biofilm. After the sewage is in contact with the biofilm, the pollutants are adsorbed and transformed by the microorganisms, and the sewage is purified. [0003] The role of filler in biofilm process of sewage treatment is mainly reflected in the following aspects: [0004] (1) As a place for micr...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/34D21C3/02
CPCY02W10/10
Inventor 曹玉成周健赵锦星
Owner 无锡米尔环保科技有限公司
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