碩士 / 逢甲大學 / 綠色能源科技碩士學位學程 / 105 / Food wastewater which contained high organic pollutant is usually treated by aerobic technologies. However, this wastewater could be converted into hydrogen and methane by anaerobic technology. It will have many impacts on environmental protection on wastewater treatment and reduction of carbon emissions as well as bioenergy production. It is expected that the experimental results would obtain several related parameters for scale up and futher connecting with commercial processes.
A mobile bioenergy station was constructed with the high-efficiency HyMeTek (Hydrogenesis & Methanogensis Technology) and applied to treat the wastewater from a beer factory and a beverage factory in Taiwan. This station contains one feedstock tank (3.8 m3), one nutrient tank (0.8 m3) , one hydrogen fermentation tank (2 m3), and two methane fermentation tanks (4 m3 for each one).
At beer factory, the concentration of feedstock for hydrogen fermentor was 1,200 mg COD/L. The starting-up of HRT(Hydraulic rerention time) is 12 h for the hydrogen fermentor. The methane concentration was 76% at the first day and the MPR (methane production rate) was 0.14±0.03 L/ L-d on the 7th day. Due to the low concentration of waste water, the energy production rate was low, and the COD removal efficiency was up to 60% by this mobile bioenergy station.
At beverage factory, the COD concentration of the feed substrate was about 20.7 g COD/L. But the concentration of beverage wastewater was changed and the concentration of ethanol in the wastewater was high (5628 mg COD/L). The energy production rate was low, and COD removal was only 40%.
Based on the parameters obtained from the mobile anaerobic fermentation module at the beverage factory, the energy balance analysis and cost-benefit analysis were carried out. The analysis results show that the cost of the mobile anaerobic fermentation module was more than the benefits. The future work is to increase the production of biomass gas to achieve profits greater than the cost.
| Identifer | oai:union.ndltd.org:TW/105FCU00160007 |
| Date | January 2017 |
| Creators | GU, RUI-LIN, 古瑞麟 |
| Contributors | LAY ,CHYI-HOW, LIN, CHIU-YUE, 賴奇厚, 林秋裕 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 137 |
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