In order to avoid secondary pollution during the use of the paddle dryer, as well as to deal with odor, flue gas, biogas and noise, the following measures can be taken:
Regular maintenance and cleaning of the paddle dryer to ensure that the inside of the equipment is dry and clean, and to avoid contamination of the production process by residues and dirt.
Effective collection and treatment measures should be taken for the odor, flue gas and other exhaust gases generated. For example, an exhaust gas collection system can be set up to collect and treat exhaust gases in a centralized manner to avoid hazards to the environment and operators.
In response to noise problems, sound insulation facilities can be set up around the equipment to reduce the impact of noise on the surrounding environment and operators. At the same time, the equipment can also be optimized to reduce the noise generation during the operation of the equipment.
For the problem of heavy metals in sludge, methods such as passivation coupling can be adopted. By adding an appropriate amount of passivator, the heavy metals in the sludge form stable compounds, reducing its bioavailability and environmental risks.
Strengthen the training and management of operators to ensure that operators can master the operation skills and maintenance knowledge of the equipment, and avoid secondary pollution problems caused by improper operation or untimely maintenance.
To sum up, in view of the secondary pollution problem during the use of paddle dryers, it is necessary to start from equipment maintenance, exhaust gas treatment, noise control, heavy metal passivation coupling and personnel management, etc., and comprehensively strengthen management and control measures to ensure the environmental protection and safety of the production process.