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| Influence of temperature on production of lactic acid from kitchen garbage | |
| 引用本文： | 汪群慧,徐忠,孟令辉,孙晓红,王旭明. Influence of temperature on production of lactic acid from kitchen garbage[J]. 哈尔滨工业大学学报(英文版), 2003, 10(2) |
| 作者姓名： | 汪群慧 徐忠 孟令辉 孙晓红 王旭明 |
| 作者单位： | Dept.of Environmental Science and Engineering，Dept.of Applied Chemistry，Dept.of Applied Chemistry，Dept.of Environmental Science and Engineering，Dept.of Environmental Science and Engineering Harbin Institute of Technology，Harbin 150090，China，Harbin Institute of Technology，Harbin 150001，China，Dept.of Environmental Science and Engineering，Harbin University of Commerce，Harbin 150076，China，Harbin Institute of Technology，Harbin 150001，China，Harbin Institute of Technology，Harbin 150090，China，Harbin Institute of Technology，Harbin 150090，China |
| 摘 要： | 0 INTRODUCTIONInrecentyears ,therehasbeenagrowinginterestinthefermentativetreatmentoftheorganicfractionofhouse holdwaste .Kitchengarbageishighmoisturecontention ,therefore ,itisdifficulttoburnitwithoutauxiliaryfuel,anditiseasytogeneratedioxinduringtheincinerationtreatmentbecausegarbagehampersrazingoftemperaturewithinincinerator[1] .Ontheotherhand ,recycleandreuseofgarbagearedifficultwhenkitchengarbageismixedwithotherwastes ,suchaswastepaper ,wasteplastics .How ever,kitchengarbageisarich … |
Influence of temperature on production of lactic acid from kitchen garbage |
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| WANG Qun hui ,XU Zhong ,,MENG Ling hui ,SUN Xiao hong ,WANG Xu ming. Influence of temperature on production of lactic acid from kitchen garbage[J]. Journal of Harbin Institute of Technology (New Series), 2003, 10(2) | |
| Authors: | WANG Qun hui XU Zhong MENG Ling hui SUN Xiao hong WANG Xu ming |
| Affiliation: | 1. Dept. of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150090, China 2. Dept. of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China;Dept. of Environmental Science and Engineering, Harbin University of Commerce, Harbin 150076, China 3. Dept. of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China |
| Abstract: | The production of lactic acid from kitchen garbage, the precursor for production of biodegradableplastics is described in detail. The influence of temperature on the lactic acid concentration, sugar concentra-tion, and decrement of garbage were evaluated through experiments. Fermentation were carried out in an incu-bator at 5, 25, 37 and 50 ℃. The latic acid produced was maximum at initial pH 6.0 and 37 ℃ , i.e. 38 g/Lwith a yield of 0.23 g/gVS. It is concluded from the experimental results that temperature has quite a consider-able effect on the production of lactic acid; lactic acid concentration increases with temperature until 37 ℃ ,and production rate of lactic acid drops at 50 ℃; the optimal fermentation is 37 ℃. This study shows that pro-duction of lactic acid from kitchen garbage is feasible and reduction of garbage can be realized. |
| Keywords: | lactic acid garbage treatment biodegradable plastics kitchen garbage |
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