Biogas Production from Chinese Kitchen Biowaste
Hailun, Fu (2017)
Savonia-ammattikorkeakoulu
2017
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2017100915864
https://urn.fi/URN:NBN:fi:amk-2017100915864
Tiivistelmä
Biogas is a mixture of different gases produced through anaerobic digestion by breakdown of organic matter in the absence of oxygen. The biogas produced from Chinese kitchen food waste was implemented in mesophilic temperature range (40-43oC). The aim of this thesis was to determine the feasibility of methane production from Chinese kitchen food waste and compare the potential of biogas production from the mixture of Chinese kitchen food waste and garden waste. Another aim was to compare materials potential for biogas production between Chinese kitchen food waste and cow manure. The biogas production from cow manure was tested before and the final result of biogas yield was collected for this study.
Chinese kitchen food waste was collected the Chinese restaurant of Kuopio, Finland (Kiinalainen Ravintola) which mainly contains chicken, vegetables and noodles. Chinese kitchen food waste was calculated in the biogas batch test which contains 33.41% dry matter (TS) and 29.80% organic dry matter (VS). Garden waste was collected from Kuopio garden yard which mainly contains leaves and slim branches. The garden waste was tested which contains 36.55% dry matter and 29.80% organic dry matter.
In this study, Chinese kitchen food waste was tested to determine its potential for biogas production which set zero test and two substrate tests. The zero test was only filled inoculum in 5 liter bottles and conducted two parallel test. The substrate test one was a mixture of Chinese kitchen food waste and inoculum and the VS ratio between sample and inoculum was 0.92. The substrate test 2 was a mixture of Chinese kitchen food waste and garden waste as well as inoculum. The VS ratio between samples and inoculum in substrate test two was 0.97. Each substrate test conducted three parallel test.
From the result, Chinese kitchen food waste proved to be a highly efficient materials for biogas production. Substrate test one with VS-ratio 0.92 produced 95.59 Nm3 CH4 from per ton of fresh matter, 286.13 Nm3 CH4 from per ton of dry matter and 320 Nm3 CH4 from per ton of organic dry matter. The mass reduction in substrate test one was 2.38% and The VS reduction was roughly 6%. Substrate test two with VS-ratio 0.97 has lower methane yield than substrate test one. The mass reduction was 1.52% and the VS reduction was roughly 6%.
Chinese kitchen food waste was collected the Chinese restaurant of Kuopio, Finland (Kiinalainen Ravintola) which mainly contains chicken, vegetables and noodles. Chinese kitchen food waste was calculated in the biogas batch test which contains 33.41% dry matter (TS) and 29.80% organic dry matter (VS). Garden waste was collected from Kuopio garden yard which mainly contains leaves and slim branches. The garden waste was tested which contains 36.55% dry matter and 29.80% organic dry matter.
In this study, Chinese kitchen food waste was tested to determine its potential for biogas production which set zero test and two substrate tests. The zero test was only filled inoculum in 5 liter bottles and conducted two parallel test. The substrate test one was a mixture of Chinese kitchen food waste and inoculum and the VS ratio between sample and inoculum was 0.92. The substrate test 2 was a mixture of Chinese kitchen food waste and garden waste as well as inoculum. The VS ratio between samples and inoculum in substrate test two was 0.97. Each substrate test conducted three parallel test.
From the result, Chinese kitchen food waste proved to be a highly efficient materials for biogas production. Substrate test one with VS-ratio 0.92 produced 95.59 Nm3 CH4 from per ton of fresh matter, 286.13 Nm3 CH4 from per ton of dry matter and 320 Nm3 CH4 from per ton of organic dry matter. The mass reduction in substrate test one was 2.38% and The VS reduction was roughly 6%. Substrate test two with VS-ratio 0.97 has lower methane yield than substrate test one. The mass reduction was 1.52% and the VS reduction was roughly 6%.