Method for producing methane by carrying out co-digestion on pig manure and tea-oil tree shell

A technology of camellia oleifera shell and biogas production, which is applied in the petroleum industry, gas fuel, waste fuel, etc. It can solve the problems of secondary pollution, low added value of products, and low input and output, so as to increase gas production and improve raw material utilization rate and energy conversion efficiency

Inactive Publication Date: 2014-09-03
NANCHANG UNIV
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Problems solved by technology

In terms of development and utilization of camellia oleifera husks, domestically, nitrogen sources and microbial agents are mainly used for composting and fermentation for soilless cultivation of flower seedlings, and a small amount is used for extracting tannin, furfural, activated carbon and other substances. The input and output are relatively low, the added value of the product is not high, and it will cause secondary pollution to the environment. Therefore, most areas only squeeze oil from camellia seeds wi

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  • Method for producing methane by carrying out co-digestion on pig manure and tea-oil tree shell

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Embodiment

[0026] assembled as figure 1 The controllable thermostatic anaerobic stainless steel fermenter shown has a total volume of 30L and an effective volume of 24L. The device has a built-in heating rod to heat up, and the temperature is controlled by a thermocouple inserted into the tank, and the generated gas is connected to a gas flow meter through the gas outlet to measure the daily gas production. The generator speed is set at 27r / min, and it keeps rotating all the time, and the amount of gas produced is measured once a day by a gas flow meter.

[0027] The design temperature of this example is 50°C, pH=6~8, fermentation broth TS=6%, hydraulic retention time 15 days, add 720g pig manure and 4.7L inoculum (the TS of the inoculum is negligible) into the fermenter, and wait for When the fermentation gas production tends to be stable, the mixed raw materials of camellia oleifera husk and pig manure will be input semi-continuously.

[0028] Crush the camellia oleifera shell ...

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Abstract

The invention relates to a method for producing methane by carrying out co-digestion on pig manure and tea-oil tree shell. The method for producing the methane by carrying out co-digestion on the pig manure and tea-oil tree shell concretely comprises the steps of mixing the tea-oil tree shell serving as a raw material with the pig manure in different proportions in a controllable constant temperature anaerobic stainless steel fermentation tank at the high temperature of 50 DEG C in a semi-continuous anaerobic fermentation way, and then carrying out co-digestion, thereby producing the methane. Compared with the pure pig manure fermentation, the method for producing the methane by carrying out the co-digestion on the pig manure and the tea-oil tree shell has the advantages that raw materials of the methane can be enriched, the problem of supply of the raw materials of the methane can be alleviated, popularization and application of the methane is promoted, and additional use value of tea-oil tree fruits is increased.

Description

technical field [0001] The invention belongs to the field of biomass energy, and in particular relates to a method for co-digesting pig manure and camellia oleifera shells of agricultural and forestry waste to produce biogas. Background technique [0002] Camellia oleifera, also known as camellia oleifera, is one of the four major edible oil plants in the world. At the same time, camellia oleifera is also an important economic crop in my country. It is widely planted in central China, south China, east China, southwest and other places. At present, the planting area of ​​camellia oleifera husk is large 4 million hm2.. With the rapid development of Camellia oleifera seed shelling technology in recent years, a large number of camellia oleifera shells are produced during the processing of camellia oleifera. Most of the by-product camellia husks are discarded, and in the degradation products of the discarded camellia oleifera shells, peculiar smell gas can be produced to pollute...

Claims

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Application Information

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IPC IPC(8): C10L3/08
CPCY02E50/343Y02E50/30
Inventor 张帆朱建航廖丽萍彭航宇申钊颖祝俊林
Owner NANCHANG UNIV
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