As more countries enforce strict environmental protection regulations, the disposal of cow manure has become a major concern for dairy farms. In some regions – for example, the United Kingdom – the dehydration or mechanical separation of cow manure has been permanently restricted. This aims to prevent river pollution caused by liquid waste discharge. Under these “No Dehydration” or “Dehydration Prohibited” policies, you must find safer, eco-friendly ways to manage cow manure. It is cow dung decomposition.
Why composting is best to dispose of cow manure under no-dehydration policies?
To finish cow farm waste management without dewatering, it is an ideal choice to process cow manure into compost by adding straw, sawdust and other crop residues.
Because, instead of separating liquid from solid cow manure by mechanical filtration, cow dung composting reduce moisture by evaporation. During the aerobic fermentation process, microorganisms break down organic matter, generating heat and facilitating the natural evaporation of excess moisture. As a result, the moisture content of the composted cow manure is about 30%. At the same time, this will kill the pathogens, pest eggs and grass eggs in cow manure and make it used as fertilizer harmless.
Why add straw, sawdust in cow dung decomposition?
By mixing cow manure with straw, sawdust, or other crop residues, there are two benefits. Reduce cow manure water content to 60% before composting. And adjust C:N ratio to proper level for better cattle fermentation.
1. Raw Material Preparation – Mix fresh cattle manure with straw or crop residues in a ratio that keeps the moisture around 55–60%.
2. Fermentation and Turning – Use a compost turner to regularly aerate the cow manure pile. This helps oxygen circulation and raises the temperature to 55–65°C, killing harmful pathogens.
3. Decomposition Stage – Continue turning cow dung composting piles every few days to maintain even aerobic fermentation. Within 20 days, you can dispose of cow manure into compost with dark and loose – a sign of maturity.
4. powder making or granulation – You can freely choose to further process composted cow manure into organic fertilizer powder or granules for commercial use.
This fertilizer composting system effectively dispose of cow farm waste while producing natural organic fertilizer that improves soil quality and crop yield.
How to choose the right cow manure composting machine?
Choosing the right cow manure composting equipment determines your efficiency. The following models are widely used in large scale cow farm waste management and industrial compost fertilizer making plants:
– Wheel Type Compost Turner – Best choice for large commercial cow dung compost making. With 8-30m compost width and 2-3m turning depth.
– Crawler Windrow Compost Machine – Ideal mobile cow manure composter. Flexible moving for outdoor windrow composting and turning 500-1500 m³of cow manure piles per hour.
– Groove Type Composting Equipment – Working with fermentation trench building. With cost‑saving machine for small cow manure composting. 3-5m turning span and 0.8-2m turning depth.
In summary, under dehydration prohibited policies, composting is the most practical, environmentally friendly, and profitable way to dispose of cow manure. With the right mixture of straw and manure, proper fermentation management, and reliable industrial composting equipment, you can turn cow farm waste into fertilizer while meeting No Dehydration policy in your countries. Come to YUSHUNXIN get more solutions for cow manure waste managment.
