Garage type biological drying method

Abstract

The invention discloses a garage type biological drying method, belonging to the field of the household refuse disposal. The garage type biological drying method comprises the following steps: crushing household refuse to be with particle sizes not larger than 200mm, stacking the crushed life garbage in a garage, conveying hot air produced in other garages subjected to biological drying into the garage to help to establish an environment necessary for organisms in the garage quickly, compulsively ventilating a refuse dump after the heap temperature reaches 50-55 DEG C, feeding back and controlling oxygen concentration in ventilation quantity so as to make full use of heat evaporative water produced by aerobic microbial metabolism and take away the water vapor through the sufficient ventilation flow to quickly dry the refuse, sorting the dry refuse and carrying out resource utilization. A plurality of garage type drying cabins can be continuously arranged, and each cabin is provided with independent ventilation, deodorization and self control systems. According to the garage type biological drying method disclosed by the invention, weather influence is avoided, the refuse treatment capacity is large, the reaction period is short, the leachate production amount is low, the biological stability is good, the energy consumption and cost are low, the environmental pollution is effectively controlled, technological parameters can be adjusted online to monitor in real time, and the garage type biological drying method is safe and reliable.

Description

technical field [0001] The invention belongs to the field of domestic garbage treatment, and in particular relates to a garage-type biological drying method. Background technique [0002] Domestic waste in my country is characterized by high moisture content, which is greater than 55% on average, and even as high as 75% in some cases. High water content is the main obstacle to the effective treatment of domestic waste. High water content will significantly increase the amount of leachate produced in domestic waste landfills; high water content reduces the low calorific value of domestic waste and reduces the efficiency of incineration energy recovery; high water content The high rate also makes the mutual adhesion of different components in the garbage serious, and the mechanical separability is poor, which hinders the improvement of the sorting effect and limits the possibility of optimizing the garbage treatment process through sorting. Therefore, in order to improve the ...

AI Technical Summary

Problems solved by technology

This treatment method has a simple process, a large amount of waste disposal, and the odor can be effectively controlled to a certain extent. However, this treatment method has relatively high investment costs and high technical requirements for operation, especially in film coating and film removal. Attention should be paid at this stage to prevent the damage of the membrane during the process, affecting the actual operation effect and the secondary pollution of the surrounding environment by the exhaust gas

[0010] The above methods all have problems such as difficulty in collecting exhaust gas, relatively long drying cycle, and secondary pollution of exhaust gas to the surrounding environment.