The treatment methods of slaughtering wastewater mainly include the following:
1.Pretreatment: Pretreatment is the first link in the treatment of slaughtering wastewater, mainly to remove large particulate matter, grease, blood stains, etc. in the wastewater. Pretreatment methods include sedimentation, filtration, air flotation, etc.
2.Biochemical treatment: Biochemical treatment is the use of microorganisms to convert organic substances in wastewater into harmless substances. The methods of biochemical treatment include activated sludge method, biological filter method, biological carousel method, etc.
3.Advanced treatment: Advanced treatment is to further remove trace organic substances and nutrients from wastewater on the basis of biochemical treatment to achieve higher discharge standards. Methods of advanced treatment include coagulation, sedimentation, filtration, disinfection, etc.
The treatment characteristics of slaughtering wastewater mainly include the following aspects:
1.Wastewater contains a large amount of organic matter and nutrients, which requires effective treatment to meet discharge standards.
2.Wastewater contains a lot of oil and blood, and pretreatment is required to remove these impurities.
3.The biodegradability of wastewater is good, and the action of microorganisms can be used for biochemical treatment.
4.Wastewater discharge standards are high, and advanced treatment measures are required to meet the discharge standards.
5.The treatment of slaughtering wastewater needs to take into account the amount of wastewater produced and the change in water quality, so that corresponding treatment measures can be taken.
To sum up, the treatment methods of slaughtering wastewater mainly include pretreatment, biochemical treatment and advanced treatment, and its treatment characteristics include that wastewater contains a large amount of organic matter and nutrients, the biodegradability of wastewater is good, the wastewater discharge standard is high, and the changes in the quantity and quality of slaughtering wastewater need to be considered.