Device for generating power by hydrolyzing acid phase in two-phase methane fermentation by utilizing cow dung and power generating method thereof

Abstract

The invention discloses a device for generating power by hydrolyzing an acid phase in two-phase methane fermentation by utilizing cow dung and a power generating method thereof, and belongs to the field of power generation of microbes. The invention provides a new way for applying the cow dung. In the device, an anode chamber is separated from a cathode chamber through a diaphragm. The method comprises the following steps: 1, stacking fresh cow dung at room temperature out of the sun under the anaerobic condition, and filtering the fresh cow dung; 2, preparing a mixed material; 3, filling the material; and 4, starting up for operation, and stably outputting the current after 48 hours; therefore, the power generation for hydrolyzing the acid phase in the two-phase methane fermentation by utilizing the cow dung is realized. The device has the advantages of simple structure and convenient operation; in the method, the electric energy obtained is table, the maximum output power can reach 264mW / M3, and the output voltage is stabilized between 416 and 456mV; and the invention provides a new way for applying the cow dung.

Description

technical field [0001] The invention belongs to the field of microbial electricity generation, and in particular relates to a hydrolysis acidification phase electricity generation device and an electricity generation method for two-phase biogas fermentation using cow dung. Background technique [0002] my country is a big country rich in biomass resources in the world, with an annual output of more than 700 million tons of crop straw and about 140 million tons of livestock and poultry manure (dry matter). With the continuous deepening of the construction of ecological agriculture with biogas as the link, the anaerobic digestion and degradation of livestock and poultry manure, agricultural waste and other biomass resources can recover biogas, hydrogen and other energy sources, while reducing environmental pollution and improving the ecological environment. The requirements for application technology are also constantly increasing. At present, the two-phase fermentation proce...

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Problems solved by technology

However, the use of two-phase fermentation to treat cow dung and generate electricity simultaneously has not been reported.

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