Turning wastes to resource with zero pollution
Ecological pig farming with resources in circulation


According to relevant statistics, a sow typically generates 5KG of waste and 7L of urine per day, while a domestic pig generates 1.5KG of wastes and 4L of urine. From these figures, a pig farm that keeps 10,000 pigs will generate 3,800 tons of wastes and approximately 10,000 tons of urine per year. These solid and liquid wastes require between 50,000 ~ 120,000 tons of water for cleaning. The process not only consumes substantial amounts of water resources but also amplifies the resulting pollution by creating even greater volumes of fecal sludge by several folds.

In order to strengthen environmental protection and prevent the farms from polluting surrounding environments, Chainwin has planned a number of protective measures to process the fecal wastes, which are turned into organic fertilizers that can be sold or added to crops of high added values. This not only significantly reduces water consumption but also achieves the objective of turning wastes into useful resources to generate economic value. Not only that, the resulting marsh gas can also be used for a variety of purposes such as power generation, heat generation, illumination and so forth, thereby achieving the a positive cycle for ecological pig farming.

More importantly, features of resource recycling have been incorporated in many architectural features of the facility, such as the generation of power from marsh gas created by fecal wastes, improvement of barn structures with energy-saving ventilation and temperature regulation designs, solar panel rooftops that utilizes photovoltaic power generation to achieve “agricultural lighting” or “barn rooftop power station”.
Circulatory agriculture is characterized by its flow of “resource – product –waste – recycled resources – recycled products”. The greatest advantage of such a model lies in the integration of vegetation, farming and animal husbandry into an industrial chain. By turning wastes into the raw materials for the subsequent product and creating the product, we are able to achieve the maximum economic benefit from the cycle. In short, it is a production model that requires low input, generates low emission but delivers high output and high efficiency.