1. Chicken manure contains pollutants such as carbon, nitrogen and phosphorus, which are reflected in laboratory indicators such as COD, BOD, SS, ammonia nitrogen, total nitrogen and total phosphorus;
2. There are pollutants such as carbon, nitrogen and phosphorus in chicken feathers and feed residues, which are reflected in laboratory indicators such as COD, BOD, SS, ammonia nitrogen and total phosphorus;
3. The above two pollutants will produce gas and acid after fermentation, and the gases produced include methane, ammonia, hydrogen sulfide, etc., which will pollute the atmosphere; The acids produced include amino acids, fatty acids, etc. , will reduce the acidity of drainage, reflected in the low test index, some of the generated acid will volatilize and produce stench.
To sum up, the pollution of chicken farms to the environment is reflected in three aspects: air, water and solid waste. It will definitely pollute the water source.