| 英文摘要 |
In order to implement the carbon reduction policy and solve the offshore islands solid waste disposal problems in Taiwan, the Environmental Protection Administration (EPA) thus promoted 「The Project Of Promoting Offshore Islands Region To Establish Bio-Energy Center」to the Executive Yuan and it was approved on January 23, 2013. However, the benefits from outcome resources should be reviewed gradually.
For the purpose of proper plan waste disposal solutions and the offshore islands region renewable energy development; therefore, the project team planned the best treatment technology assembling by investigating biomass material, resources product demand, utilization benefits and collected biomass technical information (Anaerobic Digestion, High-effective Compost, Pyrolysis); moreover, met the local development feature. Meanwhile, for increasing facility operation scale, considering biomass material collection and transportation problem, the offshore islands biomass energy center should be followed ‘widen biomass material’ and ‘installment expansion method’ principles. The best technology treatment assembling as below, Penghu County was 「waste sorting equipment treatment (constructed, design capacity 70 tons per day), Anaerobic Digestion treatment (new, design capacity 80 tons per day) and high-effective Compost (new, design capacity 25 tons per day)」. Kinmen County was 「waste sorting equipment treatment (new, design capacity 40 tons per day), Anaerobic Digestion treatment (new, design capacity 100 tons per day) and high-effective Compost (new, design capacity 40 tons per day)」. Lianjiang County was「waste sorting equipment treatment (new, design capacity 10 tons per day), Biofuel (new, product capacity 4 tons per day) and transport to Chinese mainland」. Pyrolysis technology was recommended to ongoing review and adjusted regard to the offshore islands current situation and abroad technology development.
Economic profit evaluation was based on the assumption of non-considering first cost (central government grants) land cost(local government grants) and equipment depreciation, which adopts Net Present Value (NPV) indicator to evaluate the operating benefits for 20 years,and operational benefits was compared to currently waste disposal methods (transportation and incineration) . If the biogas used as electricity generation, Penghu and Kimen has NTD 358.9 million and NTD 411.7 million benefits , respectively； If the biogas used as compressed natural gas (CNG) fuel, Penghu and Kimen has NTD 447.7 million and NTD 447.3 million benefits, respectively； If the biogas used as steam fuel, Kimen has NTD 586.1 million benefits. Lianjiang has NTD 79.3 million benefits . Aspect of greenhouse gas reduction, the offshore islands biomass energy center might be reduced approximately 7,809 metric tons of carbon emissions annually. To decrease the engineering interface and ensure construction quality and establish an optimized operating mode, the offshore islands biomass energy center should adopt turnkey package (including detail design/manufacture/install/test/train/maintenance or a period of operation). By public-private operation mode can enhance operating performance and ensure sustainable management.
In addition, the project has completed relevant tasks, including offshore islands natural resources survey, invited a expert to provide technical guidance regarding Bali wastewater treatment plant co-digestion with food waste pilot project, held a technical seminar in offshore island, involved the environmental impact assessment, coastline and ocean current control mechanism, as well as provided biomass energy center plan template as references.
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