Abstract
Treatment of Livestock Wastewater by Bentonite Coated Chitosam
Highlights
In recent years, livestock farm was developed to scale with the increasing demand of the livestock products
The removal rate of the COD changed little at the removal rate of 45%. This was because the negative charge on the pollutant was neutralized by the bentonite coated chitosan and subsided at the function of adsorption bridge
The single factor experiment indicated that the optimum process parameters of the livestock wastewater which treated by bentonite coated chitosan was the dosing quantity: 0.5 g, the pH: 5, the stirring time: 20 min, the stirring rate: 300 r/min and the standing time: 60 min
Summary
Livestock farm was developed to scale with the increasing demand of the livestock products. The livestock wastewater includes poultry excrement, piggery rinse water and so on Jinlian and Ning (2000). This type of the wastewater has the advantages such as high concentration of the CODcr, the ammonia nitrogen and the SS (Jie, 2009; Zhiyong et al, 2007) .It will caused pollution surface water, underground water and farmland if random discharged (Xia et al, 2011). How to solve the livestock wastewater effectively is one of the most urgent problems to be settled especially during the twelfth five years plan that the ammonia nitrogen is added one of the water pollutant
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