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Biological carbonaceous filler and preparation method thereof

A bio-carbon and biomass technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of increasing the load of organic matter in water, frequent addition and replacement of fillers, unstable properties of organic matter, etc. Less equipment, beneficial to carbon dioxide emission reduction, easy to implement

Active Publication Date: 2011-09-21
江苏荣诚农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the organic matter in the filler prepared by the above-mentioned technology is unstable, and it is easy to be rapidly degraded by microorganisms in the water during use, which not only makes the addition and replacement of the filler more frequent, but also increases the load of organic matter in the water, especially at the initial stage of use, sometimes affecting the quality of the effluent
In addition, the preparation process of some fillers is complicated and the operation requirements are high, which limits the industrialization process.

Method used

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  • Biological carbonaceous filler and preparation method thereof
  • Biological carbonaceous filler and preparation method thereof
  • Biological carbonaceous filler and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Wash the peanut shells, dry them naturally, put them into a crucible with a cover, and send them to a muffle furnace for slow pyrolysis after sealing. The final temperature of pyrolysis is 300°C, and the pyrolysis time is 1h. The pyrolyzed solid product was soaked in 0.1mol / L HCl solution for 12 hours, then rinsed repeatedly with distilled water for 3 times, and dried in an oven at 105°C for 12 hours. After being taken out, it is crushed into particles with a size of 0.5-1.5 cm, and then the biological carbonaceous filler 1 is made.

Embodiment 2

[0024] Wash the peanut shells, dry them naturally, put them into a crucible with a cover, and send them to a muffle furnace for slow pyrolysis after sealing. The final temperature of pyrolysis is 500°C, and the pyrolysis time is 1h. The pyrolyzed solid product was soaked in 0.1mol / L HCl solution for 12 hours, then rinsed repeatedly with distilled water for 3 times, and dried in an oven at 105°C for 12 hours. After being taken out, it is crushed into particles with a size of 0.5-1.5 cm, and then the biological carbonaceous filler 2 is made.

Embodiment 3

[0026] Wash the peanut shells, air dry them naturally, put them into a crucible with a cover, and send them to a muffle furnace for slow pyrolysis after sealing. The pyrolyzed solid product was soaked in 0.1mol / L HCl solution for 12 hours, then rinsed repeatedly with distilled water for 3 times, and dried in an oven at 105°C for 12 hours. After being taken out, it is crushed into particles with a size of 0.5-1.5 cm, and then the biological carbonaceous filler 3 is made.

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Abstract

The invention discloses biological carbonaceous filler and a preparation method thereof. The method is characterized by sequentially comprising the following steps of: a, cleaning and airing a biomass solid and processing the biomass solid into granules; b, pyrolyzing the granular biomass solid in anoxic or anaerobic atmosphere at the temperature of between 300 and 700 DEG C for 1 to 3 hours; c, cooling the pyrolyzed substance, and then washing the substance by using acid to remove dust; and d, cleaning the substance by using clear water and drying the substance to obtain the granular biological carbonaceous filler. The invention provides the preparation method for the biological carbonaceous filler with simple process and low cost; and meanwhile, the filler prepared by the method has thecharacteristics of stable property, good film-forming effect, high water treatment effect and no later pollution to the environment.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method for preparing a biological carbonaceous filler applied to biofilm water treatment. Background technique [0002] The biofilm method is a method of sewage treatment. This method is to fix the microorganisms in the bioreactor on the surface of the filler to form a layer of biofilm. Through the metabolism of the biofilm microorganisms and the exchange of pollutants and gases in the liquid phase, the treatment is achieved. purpose of waste water. Among them, the filler is the core of the biofilm water treatment process. It provides a place for biochemical metabolism for water treatment microorganisms and can intercept suspended solids in water. Its performance directly affects the efficiency of water treatment process and engineering investment. The application of biofilm fillers has a history of nearly a hundred years at home and abroad. From the initial inorganic fillers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20C02F3/00C02F3/10
CPCY02W10/10
Inventor 丁文川曾晓岚王永芳吉方英杜勇朱庆祥
Owner 江苏荣诚农业科技发展有限公司
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