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Biological method for generating hydrogen by continuous wastewater treatment and special bio-hydrogen production fermentation liquor

A technology for biological hydrogen production and wastewater treatment, applied in microorganism-based methods, food industry wastewater treatment, biochemical equipment and methods, etc., can solve the problems of difficult hydrogen recovery, low hydrogen production efficiency, etc. Benefit, high hydrogen production efficiency and low cost effect

Inactive Publication Date: 2008-08-27
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, anaerobic activated sludge contains a large number of bacteria that utilize hydrogen such as methane-forming bacteria and sulfate-reducing bacteria, which makes hydrogen recovery difficult and hydrogen production efficiency low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, utilize brewery waste water to carry out biological hydrogen production

[0027] 1. Preparation of biological hydrogen production fermentation broth

[0028] 1. Mix 50 grams of rice and 800ml of distilled water in a 1000ml airtight brown bottle, hydrolyze and anaerobically ferment at 35°C for 3 months to obtain a biohydrogen production culture medium;

[0029] 2. Take 300ml of the biological hydrogen production culture solution described in step 1 and transfer it into a 1000ml bottle, then add 500ml of brewery wastewater with a COD concentration of 12500mg / L into the above 1000ml bottle, and carry out two cycles at 35°C 1 month of anaerobic fermentation to obtain 800ml brewery wastewater treatment biohydrogen production fermentation liquid.

[0030] 2. Start-up of biological hydrogen production plant

[0031] Transfer 200ml of biological hydrogen production fermentation liquid obtained in step 1 into an anaerobic wastewater treatment device with an effec...

Embodiment 2

[0038] Embodiment 2, Utilize the waste water of citric acid factory to produce hydrogen biologically

[0039] 1. Preparation of biological hydrogen production fermentation broth

[0040] 1. Mix 50 grams of soybeans and 800ml of tap water into a 1000ml airtight brown bottle, hydrolyze and anaerobically ferment at 35°C for 2 months to obtain a biological hydrogen production culture medium;

[0041] 2. Take 300ml of the biological hydrogen production culture solution described in step 1 and transfer it into a 1000ml bottle, then add 500ml of citric acid factory wastewater with a COD concentration of 15000mg / L into the above 1000ml bottle, and carry out two cycles at 35°C 800ml of citric acid plant wastewater treatment was used for biohydrogen production fermented liquid.

[0042] 2. Start-up of biological hydrogen production plant

[0043] The 200ml biological hydrogen production fermented liquid obtained in step 1 is moved into an anaerobic wastewater treatment device with an ...

Embodiment 3

[0050] Embodiment 3, utilizing molasses wastewater to produce hydrogen biologically

[0051] 1. Preparation of biological hydrogen production fermentation broth

[0052] 1. Mix 50 grams of sorghum and 800ml of distilled water in a 1000ml airtight brown bottle, hydrolyze and anaerobically ferment at 25°C for 2 months to obtain a biological hydrogen production culture medium;

[0053] 2. Take 300ml of the biological hydrogen production culture solution described in step 1 and transfer it into a 1000ml bottle, then add 500ml of molasses wastewater with a COD concentration of 15000mg / L into the above 1000ml bottle, and carry out 3-month incubation at 25°C Anaerobic fermentation was carried out to obtain 800ml of biological hydrogen production fermentation liquid for molasses wastewater treatment.

[0054] 2. Start-up of biological hydrogen production plant

[0055] The 200ml biological hydrogen production fermented liquid obtained in step 1 is moved into an anaerobic wastewater ...

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PUM

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Abstract

The invention discloses a method for continuously processing wastewater to produce hydrogen biologically and specific bio-hydrogen production fermentation broth. The bio-hydrogen production fermentation broth which is provide by the invention is prepared through the following method, which comprises: firstly, mixing grain and water, then, anaerobically fermenting for 1-3 months under the temperature of 15-37DEG C, obtaining bio-hydrogen production culture solution, secondly, feeding the wastewater to the bio-hydrogen production culture solution in the first step, anaerobically fermenting, and obtaining the bio-hydrogen production fermentation broth. The method for using the bio-hydrogen production fermentation broth to produce the hydrogen biologically has high hydrogen production efficiency and is continuous and stable, and the problem that an existing technique which utilizes anaerobic activated sludge has low hydrogen production efficiency is overcome. The hydrogen production raw materials of the method of the invention have wide sources and low cost, which not only can control environmental pollution to change waste into treasure, but also can produce new energy to reduce the hydrogen production cost greatly, and the method has the practicability of industrial hydrogen production.

Description

technical field [0001] The invention relates to a continuous wastewater treatment method for biological hydrogen production and a special biological hydrogen production fermentation liquid. Background technique [0002] Hydrogen energy, as the main environmentally friendly energy in the future, has attracted great attention from many developed countries. As one of the preparation methods of hydrogen energy, biological hydrogen production technology has attracted extensive attention due to its advantages such as easy availability of raw materials for hydrogen production and combination with wastewater and waste treatment projects. The success of the development and utilization of biological hydrogen production technology is related to the position of our country in the fierce competition of energy technology in the future. Therefore, the research and development of biological hydrogen production technology has been listed as my country's future sustainable development plan, ...

Claims

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Application Information

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IPC IPC(8): C12P3/00C02F3/34C12R1/01C02F103/32
Inventor 沈建权杨海军袁柱良支晓华
Owner INST OF CHEM CHINESE ACAD OF SCI
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