NPK fertilizer blending machine offers multiple effective ways to recycle agricultural waste. The following is a detailed analysis:

1. Treatment and Utilization of Various Wastes: NPK fertilizer blending equipment can process a variety of agricultural wastes, such as livestock and poultry manure, crop straw, sewage sludge, and Oil palm empty fruit bunch (OPEFB).

2. Improving Fertilizer Quality and Stability: Through its precise batching system and mixing technology, NPK fertilizer blending equipment can evenly blend agricultural waste with inorganic fertilizer components, improving fertilizer quality and stability. For example, a horizontal mixer is used to mix pre-treated sewage sludge and straw, ensuring uniformity and providing a good foundation for subsequent fermentation and granulation.

3. Environmental Protection and Sustainable Development: NPK fertilizer blending equipment can effectively reduce environmental pollution when processing agricultural waste. For example, during the sewage sludge and straw processing process, high-temperature aerobic fermentation technology decomposes organic matter into humus-like substances. Deodorization equipment is also included to reduce odorous gas emissions. This treatment method not only achieves harmless waste disposal but also reduces negative environmental impacts.

4. Reduced Production Costs: Using agricultural waste as raw materials to produce NPK blended fertilizer can reduce production costs. For example, by converting waste such as livestock and poultry manure and crop straw into organic fertilizer, reliance on traditional chemical fertilizers is reduced, lowering production costs.

In summary, NPK blended fertilizer equipment effectively supports the resource utilization of agricultural waste through various channels, promoting sustainable agricultural development and the development of circular agriculture.