Taiwan's Changhua County Leads Nation in Centralized Livestock Wastewater Treatment

Changhua County, a major hub for pig and cattle farming in Taiwan, is pioneering a centralized approach to livestock wastewater treatment, establishing itself as a national leader. The county currently operates five such facilities, with a sixth scheduled to be operational by the end of the year, bringing the total to six large-scale centers.

These centralized treatment centers are designed to handle the significant wastewater generated by the county's 595 livestock farms. By collecting and purifying manure and wastewater through pipelines or dedicated transport, the system alleviates the burden on individual farms, many of which are small to medium-sized and struggle with the costs and maintenance of their own treatment facilities. This model aims to reduce the risk of non-compliant discharges and associated penalties.

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Changhua is a major county for livestock farming, with 595 livestock farms. Wastewater treatment has long been the most troublesome problem for operators.

Environmental Bureau Director Jiang Pei-gen highlighted the program's synergy with judicial reforms. Under a "judicial plea bargain improvement" system, livestock farmers facing legal action for wastewater discharge violations can opt to have their waste processed by these authorized centers. This approach allows pollution improvement to be a condition for deferred prosecution, redirecting funds that might otherwise be spent on legal fees and fines toward actual environmental investment.

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The centralized treatment centers are managed by professional operators to uniformly collect and treat wastewater and manure. Livestock farms do not need to set up their own large-scale treatment facilities, reducing individual pollution risks.

The initiative, supported by both central government subsidies and private investment, is strategically located in areas with high livestock density, such as Fangyuan, Fuxing, Tianwei, and Fenyuan. The existing centers already process wastewater from 18 local farms, equivalent to approximately 23,000 head of livestock. With the addition of the sixth center, the capacity will expand to serve 26 farms, accommodating over 27,000 animals.

Beyond environmental protection, the centralized treatment centers contribute to the circular economy by processing waste into fertilizer and, in some cases, generating biogas for energy. This comprehensive approach addresses both the immediate pollution concerns and promotes sustainable resource utilization within the agricultural sector.

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Under the "judicial plea bargain improvement" system, some dairy farmers involved in judicial procedures due to wastewater discharge violations, after pleading guilty, promise to have their manure and wastewater processed by legal centralized treatment centers, with pollution improvement as a condition for deferred prosecution.