Decoding Inner Mongolia's Ten Thousand Head Dairy Farm | Circular Economy Loop from Fecal Waste to Ecological Gold

Deep in the grasslands of Inner Mongolia, a dairy farm with over 100000 cows is performing an ecological miracle of "turning waste into treasure": thousands of tons of manure produced every day are separated into solid and liquid through a "membrane fermentation system", solid is converted into Organic Fertilizer to nourish thousands of acres of fertile land, liquid is extracted from feed protein to feed the breeding chain, and recycled water is reused to irrigate the grassland; The originally discarded mushroom bags, after being cracked, produce wood vinegar that becomes a natural insecticide. Plant charcoal replaces coal-fired power generation, and plant ash is converted into high potassium fertilizer... This closed-loop model of "breeding farm treatment center planting base" has enabled the utilization rate of manure resources to exceed 95%, truly achieving the industrial transformation from manure to ecological gold.

Technological breakthrough: The 'ecological magic' of membrane fermentation system
The traditional manure treatment in pastures often falls into the dilemma of "long composting cycle, heavy odor pollution, and low resource utilization rate". The membrane oxygen chamber fermentation system, which is built to support the construction of the National Port Connect, has reconstructed this process through three core technologies:
Nano membrane closed fermentation: E-PTFE molecular membrane is used to construct a closed fermentation space, which can not only block odor molecules such as ammonia and hydrogen sulfide, but also discharge water vapor through one-way selective permeability, achieving "zero odor overflow". The inner layer of polyester fiber material further isolates odors, and the condensed water flows back to the reactor to achieve nitrogen fixation.

Micro pressure aeration temperature control: A micro positive pressure air supply pipeline is laid at the bottom of the reactor, and oxygen is intermittently exposed for 24 hours. Combined with a high-temperature resistant composite microbial community, the fermentation cycle is compressed from the traditional 3 months to 30-40 days, increasing efficiency by more than 30%. A constant temperature environment of 60-70 ℃ for 3 days can kill 99.9% of pathogenic bacteria, and the mortality rate of roundworm eggs exceeds 95%, fully meeting the strict standards of the "Technical Specification for Returning Livestock and Poultry Manure to the Field" (GB/T 25246-2025).
Liquid pollution directional extraction: For high concentration Organic Wastewater, precise separation technology is used to extract nutrients such as organic matter, nitrogen, phosphorus, and potassium. The produced "nutrient base" can be directly used as raw material for feed protein insects and converted into high value-added live feed; Regenerated nutrient solution "is used for algae cultivation and soilless cultivation; The reuse rate of recycled water reaches over 90%, achieving "zero wastewater discharge".
Circular Value Added: The "High Value Rebirth" of Waste
Under the comprehensive energy carbon sequestration and collaborative utilization technology system of Guogangtong, the waste resources of pastures are recycled, forming a multi-level value-added chain:

Products of waste resource utilization
Triple Transformation of Waste Mushroom Bags: Wood Vinegar Liquid: Wood vinegar liquid extracted from mushroom bags through pyrolysis technology, containing more than 200 organic components, has a preventive effect on various diseases and pests such as tobacco wilt and apple powdery mildew.
Plant charcoal: High calorific value plant charcoal produced by cracking can replace coal combustion and reduce CO ₂ emissions per ton.
Grass ash: Rich in minerals such as potassium (≥ 10%) and calcium, it can be used as a high-quality potassium fertilizer to improve soil fertility and reduce fertilizer usage by more than 20% when returned to the field.
Energy feedback from manure: The heat generated by the fermentation of manure is recovered and used for heating pastures, while the fermentation gas rich in carbon dioxide is transported to greenhouses to promote grass growth through photosynthesis, forming a closed loop of "energy carbon fixation reuse".
Model Value: The 'Win Win Password' for Ecology and Economy
Environmental benefits: The comprehensive utilization rate of manure exceeds 80%, far exceeding the national average level, and reducing emissions of pollutants such as COD and ammonia nitrogen by thousands of tons annually.
Economic benefits: Organic fertilizer, feed protein, recycled water reuse and other links save pollution control costs for the ranch every year, while creating direct benefits.
After using organic fertilizer in the planting base, the sweetness of fruits and vegetables is increased, and the average income per mu is increased, forming a high value-added industrial chain of "breeding planting processing".

Extract of algae cultured in bovine urine separation solution
Social benefits: Encourage surrounding farmers to participate in organic fertilizer application and grass planting, create employment opportunities, and promote the coordinated development of rural revitalization and ecological protection.
As a key promotion of the green planting and breeding cycle model by the Ministry of Agriculture and Rural Affairs, its technical standards and management experience have been replicated and promoted domestically.
Future vision: From "pilot" to "global" industrial revolution
Currently, the Ministry of Agriculture and Rural Affairs is accelerating the implementation of the "Guiding Opinions on Accelerating the Comprehensive Green Transformation of Agricultural Development and Promoting Rural Ecological Revitalization", which explicitly requires that the comprehensive utilization rate of livestock and poultry manure should reach 85% or more by 2030.
In the future, with the iterative upgrading of membrane fermentation technology (such as intelligent temperature control and microbial community optimization) and the market expansion of biochar, wood vinegar and other products, this model is expected to be replicated in national pastures and breeding farms, promoting the resource utilization of agricultural waste from "pilot demonstration" to "global coverage". As the relevant person in charge of the Ministry of Agriculture and Rural Affairs said, "When manure becomes the 'nutritional meal' of the land, and when recycling becomes the 'new engine' of the industry, a rural revitalization picture of 'bluer sky, greener land, and richer people' is slowly unfolding
Conclusion
From "surrounding the city with manure" to "ecological gold", the practice of Inner Mongolia pastures has proven that agricultural waste is not a burden, but an untapped "resource gold mine". Through technological innovation, model reconstruction, and policy guidance, it is entirely possible to achieve a resonance between ecological and economic benefits. The value of this "closed-loop model" lies not only in solving the problem of pollution control, but also in providing replicable and scalable solutions for China's agricultural green transformation. When every drop of manure can be transformed into industrial energy, and every inch of land can achieve circular value-added, the spring of high-quality agricultural development has arrived.