Abstract
One of the main sources of water pollution in Taiwan is piggery waste. With the major pollutants such as odors, BOD, TN and TS, waste from the piggery industry has been seriously affecting the environment in Taiwan. However, if this amount of waste is properly treated, it will bring great benefits and can be considered as a resource. Generally, wastewater from the piggery industry is treated in three stages: liquid soil, anaerobic digestion and then aerobic treatment. However, this process is difficult due to high cost and difficult operation. Therefore, a feasible method was to establish a centralized methane production facility for the treatment of piggery industrial waste. The products after treated like methane and fertilize are utilized as clean and environmentally friendly products. Methane can be used for cooking or electricity generation. This is a new direction suitable for sustainable development.
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