Wastewater characteristics

The most important characteristic of wastewater generated from livestock farms, especially pig farming is the content of organic substances and nutrients expressed through parameters such as COD, BOD5, TN, TP. , SS… these parameters are the main cause of environmental pollution. These are components that are easily decomposed, causing stench, generating toxic gases, reducing the amount of dissolved oxygen in the water, and especially if not treated when discharged into the receiving source, they will pollute the environment, causing environmental pollution. fertilize ecosystems, affect plants, and are an important source of nutrients for harmful bacteria to grow. In addition, the wastewater of livestock farms contains a large amount of disease-causing bacteria, which is a factor that directly affects the health of humans as well as animals in the area.

In pig farms, water clean-up is widely used, generating a large volume of wastewater. In wastewater, organic compounds account for 70-80%, including cellulose, protit, amino acids, fats, carbon hydrates and their derivatives in feces and leftovers. Most of the organic matter is easily decomposed, inorganic substances account for 20-30% including sand, soil, salt, urea, ammonium, salt, chloride, SO42-…

In wastewater, organic substances account for 70-80% including proteins, amino acids, fats, carbohydrates, etc., which are easily biodegradable and have high nutrient content, so biological treatment is suitable. unify.