Biogas slurry turned waste into Baocheng feed

In the heart of Yongnian County, Hebei Province, a pig farm named Jianping has become a model for sustainable and eco-friendly farming. The farm has successfully transformed biogas slurry into feed, achieving an annual economic benefit of 230,000 yuan. This innovative approach not only helps manage pollution but also brings in substantial profits, making it a win-win solution for farmers and the environment. The success of Jianping Pig Farm is not just a local achievement; it has attracted visitors from across China who are eager to learn about this new method. Farmers interested in adopting similar practices have come to observe and study the process firsthand. According to Guo Jianping, the farm's director, this project was initially driven by government support and environmental regulations. Without the financial backing and guidance from local authorities, such a project would have been difficult to implement. During the "Twelfth Five-Year Plan" period, the Chinese government prioritized pollution control in large-scale livestock breeding. In 2011, the Bengbu Municipal Government issued strict deadlines for aquaculture enterprises to address their environmental impact. However, many farmers were unprepared and lacked the necessary resources to comply. Jiang Shuli, the environmental protection director of Yongnian County, recognized the need for both enforcement and support. To tackle the issue, the county organized special meetings, developed assessment methods, and implemented strict governance tasks at the township and village levels. By combining administrative pressure with policy support, they managed to push forward the initiative. Enterprises that actively participated in pollution control received subsidies and priority access to environmental protection funds. This strategy not only ensured compliance but also encouraged innovation and efficiency. One of the key breakthroughs came when biogas slurry was used as a feed additive. This practice significantly improved pig growth rates and reduced feed costs. Farmers reported that pigs fed with biogas slurry gained weight faster and required less conventional feed. Additionally, the slurry was used to fertilize vegetable greenhouses, leading to the production of high-quality organic vegetables. This integrated approach not only helped reduce pollution but also created new revenue streams. The economic benefits from biogas engineering—such as electricity generation, gas supply, and fertilizer use—were substantial. As a result, more farmers began to see the value in adopting these eco-friendly practices. Inspired by the success of Jianping Pig Farm, other farmers in the area started to take action. Several aquaculture companies have signed cooperation agreements to develop similar projects. Local leaders, including Zhang Shuangniu, deputy head of the Standing Committee of Yongnian County, emphasized the importance of creating a sustainable cycle between livestock and agriculture. Their goal is to transform all aquaculture enterprises into eco-friendly breeding households, while integrating them with the vegetable industry for long-term ecological and economic development. Through a combination of policy support, technological innovation, and farmer engagement, Yongnian County has set a powerful example of how pollution can be turned into opportunity. The journey from forced compliance to voluntary participation has proven that green farming is not only possible but also profitable.

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