厨余垃圾好氧堆肥技术研究进展OACSTPCD

With the improvement of living standard and the acceleration of urbanization,the amount of waste generated keeps increasing year by year,thus the demand of proper treatment and recycling has become a social consensus.Aerobic composting of kitchen waste,as a main approach for its resource utilization,has demonstrated great research potential and prospects.Such treatment can not only help fix carbon in soil and reduce atmospheric carbon dioxide content,but also provide organic fertilizer.In other words,this aerobic composting technology is in line with the current policy of"carbon neutralization"and chemical fertilizer reduction.In this review,we first described the basic mechanism of aerobic composting and the function of microbial agents,then summarized the effects from the following factors:composting method,water content,carbon nitrogen ratio,air ventilation,temperature,types of auxiliary materials and so on.Finally,we expounded how to evaluate the maturity of kitchen waste compost and presented the corresponding fertilizer application.In the future,process optimization will be critical for balancing the fermentation time and treatment cost.Meanwhile,the corresponding evaluation of both compost maturity and organic fertilizer efficiency is also important for the aerobic treatment of kitchen waste.