Abstract
Piggery waste is one the tree major water pollution sources in Taiwan. Piggery waste should be viewed as resource and not waste. Conventionally, three stage wastewater treatments are too costly and hard to operate. Direct application to soil can be a remedy if the application rate is careful managed. Taiwan EPA ambitiously launches piggery manure direct apply to soil policy. It might the panacea to water pollution control.
Highlights
Sewage, industrial wastewater and piggery waste are tree primary water pollution sources which are so different from most developed countries
Piggery waste should be viewed as resource and not waste
Taiwan EPA ambitiously launches piggery manure direct apply to soil policy
Summary
Industrial wastewater and piggery waste are tree primary water pollution sources which are so different from most developed countries. Piggery industries need to report their water quality and quantity to the environmental agency, If they fail to comply with the aforementioned policy the penalty will be 60,00-600,00 NT. If serious divert their wastewater will be highly punished 20,000,000 NT. Each pig creates BOD and TN 150 and 20 g per head per day, respectively. In Taiwan, 8137 pig farms compass the capacity 5000 heads create 8137 tons organic pollutants and 198 tons total nitrogen per day. Gas generate from anaerobic segment has never been well collected. Each pig produces 0.1 cubic meter methane while methane is a greenhouse gas and the impact factor to greenhouse effect twenty five times high than carbon dioxide
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