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Biochar-mediated solid biofilm anaerobic digestion accelerator preparation device and method thereof

An anaerobic digestion and preparation device technology, which is applied to biochemical equipment and methods, biochemical cleaning devices, enzymology/microbiology devices, etc., can solve problems such as long start-up time, and achieve improved adequacy, rapid enrichment, The effect of shortening the hydraulic retention period

Active Publication Date: 2019-06-04
NORTHWEST A & F UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

How to apply the advantages of biochar-mediated biofilm technology to the field of anaerobic digestion and avoid the shortcoming of the long start-up time caused by the time-consuming biofilm method is to achieve rapid start-up and rapid enrichment of anaerobic digestion, Stabilizing microorganisms and improving the degradation rate of organic matter in anaerobic digestion, shortening the hydraulic retention period, and increasing methane production are important issues to be solved, and are also important issues to be solved to promote the application and promotion of anaerobic digestion technology

Method used

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  • Biochar-mediated solid biofilm anaerobic digestion accelerator preparation device and method thereof
  • Biochar-mediated solid biofilm anaerobic digestion accelerator preparation device and method thereof
  • Biochar-mediated solid biofilm anaerobic digestion accelerator preparation device and method thereof

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Embodiment 1

[0060] A biochar-mediated solid biofilm anaerobic digestion accelerator preparation device, comprising a drum 5, a biogas slurry chamber 13, a biofilm culture chamber 20, an outer chamber 14, a constant temperature heater 26 and a vacuum freeze dryer 25; The drum 5 is located in the biogas slurry chamber 13; the biogas slurry chamber 13 is separated from the biofilm culture chamber 20 by a partition 19, and forms a jacket 21 with the outer chamber 14; the partition 19 There is a biogas slurry gate 6, and the biogas slurry gate switch 7 is located at the corresponding position on the outer wall of the outer cavity 14; the heating tube 15 of the constant temperature heater 26 is connected to the upper right end surface of the left wall of the outer cavity 14, and the heat return tube 16 is connected to the The lower right end surface of the right wall of the outer chamber 14; the biofilm gate 18 is provided between the bottom surface of the biofilm culture chamber 20 and the bott...

Embodiment 2

[0074] A preparation method of a biochar-mediated solid biofilm anaerobic digestion accelerator, based on a biochar-mediated solid biofilm anaerobic digestion accelerator preparation device of embodiment 1, comprising the following steps:

[0075] S1 Preparation of anaerobic digestion solid biofilm:

[0076] S1.1 medium preparation:

[0077] Medium: NH 4 Cl 1 g / L, MgCl 2 1 g / L, NaCl 0.5 g / L, K 2 HPO4 0.4 g / L, KH 2 PO4 0.4 g / L, peptone 2 g / L, yeast extract powder 2 g / L, sodium acetate 10 g / L, trace elements 10 mL, vitamin 10 mL, L-cysteine ​​0.5 g / L, 2‰ edge Azure 2 mL, distilled water 1000 mL (pH 7.0); among them,

[0078] Trace elements (g / L): N (CH2COOH) 3 4.5 (aminoacetic acid), FeCl 2 4H 2 O 0.4, MnCl H 2 O0.1, CoCl 2 ·6H 2 O 0.12, AlK ( SO 4 ) 2 0.01, ZnCl 2 0.1, NaCl 1, CaCl 2 0.02, Na 2 MoO 4 0.01, H 3 BO 3 0.01, NiCl 2 ·6H 2 O 0.42;

[0079] Vitamins (g / L): Biotin 2.0, Thiamine 5.0, Pyridoxine Hydrochloride 10, D-Pantocalcic Acid 5.0, Alp...

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Abstract

The invention relates to a biochar-mediated solid biofilm anaerobic digestion accelerator preparation device and a method thereof. According to the biochar-mediated solid biofilm anaerobic digestion accelerator preparation device, a structure mainly comprises a rotating drum, a biogas liquid chamber, a biofilm culture chamber, an outer chamber, a constant-temperature heater and a vacuum freeze dryer; the rotating drum is located in the biogas liquid chamber; the biogas liquid chamber and the biofilm culture chamber are separated by a partition plate, a biogas liquid gate is arranged thereon, ajacket is formed with the outer chamber, and heating is carried out by the constant-temperature heater; and a biofilm gate is disposed between the biofilm culture chamber and a vacuum lyophilizer. The device effectively realizes the preparation of the biochar-mediated solid biofilm anaerobic digestion accelerator, and ensures the oxygen-free operation of the preparation process, the preparation device has the simple and compact structure, the operation is convenient, the device has the positive effect on rapid start of anaerobic digestion, rapid enrichment and stabilization of microorganisms,and effective improvement of the sufficiency of organic matter degradation, shortening of the hydraulic retention period, and increasing of film production.

Description

technical field [0001] The invention relates to a preparation device and method for an anaerobic digestion accelerator, belonging to the technical fields of resource utilization and environmental protection, and anaerobic digestion. In particular, it relates to a biochar-mediated solid biofilm anaerobic digestion accelerator preparation device and method. Background technique [0002] Anaerobic digestion is a process in which organic matter is decomposed by anaerobic bacteria under anaerobic conditions to produce methane and carbon dioxide. It is an important technology for the utilization of organic waste resources and energy production. The multiple functions of the environment have a wide range of applications and important significance in the fields of sewage treatment, solid waste treatment and biogas production. With the deepening of research and the advancement of technology, the efficiency of anaerobic digestion has been continuously improved, but there are still so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/38C12M1/107C12M1/02C12M1/00C12P1/00C02F11/04C12P5/02
CPCY02P20/59Y02E50/30Y02P20/10
Inventor 邱凌陈潇
Owner NORTHWEST A & F UNIV
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