In this paper, the methods of kitchen waste disposal in recent years were summed up, and the advantages and disadvantages of the current treatment methods were analyzed. At the same time, it has been found that the co...In this paper, the methods of kitchen waste disposal in recent years were summed up, and the advantages and disadvantages of the current treatment methods were analyzed. At the same time, it has been found that the co-processing of kitchen waste and residual sludge not only has dealt with both kitchen waste and residual sludge, but also the carbon and nitrogen ratio and moisture content of the mixture are balanced, and increases the processing efficiency significantly. It has a certain processing advantage. At present, most research is about the anaerobic digestion of kitchen waste and residual sludge, and the process is more mature, but the study of VFAs accumulation is still insufficient. Aerobic composting is still in the early stage of development, and there are few studies on it at home and abroad. Meanwhile, prospects for the kitchen waste recycling were made in this article.展开更多
The causes of formation of black and smelly river water were summarized,including the entry of organic pollutants into rivers,such as domestic waste,three industrial wastes,thermal pollution caused by industrial hot d...The causes of formation of black and smelly river water were summarized,including the entry of organic pollutants into rivers,such as domestic waste,three industrial wastes,thermal pollution caused by industrial hot drainage,pollution of the river bottom and resuspension movement,and so on. The existing modes and valence changes of iron,sulfur and other elements in black and smelly water were discussed. It is clear that the formation of the black and stink is mainly caused by blackening factors and stink-causing factors. It is concluded that the main blackening factors are ferrous sulfide,manganese sulphide,and the main stink-causing factors are hydrogen sulfide,ammonia or sulfides( VOSCs),josamidine and 2-dimethyl isobenol based on sulfur elements. It provides theoretical reference for the control of black and smelly river water in island cities.展开更多
基金Supported by Science and Technology Plan Project of Zhoushan City(2014C11006,2016C41006)Zhejiang Public Welfare Technology Application Research Project(2016C33054)
文摘In this paper, the methods of kitchen waste disposal in recent years were summed up, and the advantages and disadvantages of the current treatment methods were analyzed. At the same time, it has been found that the co-processing of kitchen waste and residual sludge not only has dealt with both kitchen waste and residual sludge, but also the carbon and nitrogen ratio and moisture content of the mixture are balanced, and increases the processing efficiency significantly. It has a certain processing advantage. At present, most research is about the anaerobic digestion of kitchen waste and residual sludge, and the process is more mature, but the study of VFAs accumulation is still insufficient. Aerobic composting is still in the early stage of development, and there are few studies on it at home and abroad. Meanwhile, prospects for the kitchen waste recycling were made in this article.
基金Supported by Zhejiang Public Welfare Technology Application Research Project(2016C33054)Science and Technology Plan Project of Zhoushan City(2016C41006)
文摘The causes of formation of black and smelly river water were summarized,including the entry of organic pollutants into rivers,such as domestic waste,three industrial wastes,thermal pollution caused by industrial hot drainage,pollution of the river bottom and resuspension movement,and so on. The existing modes and valence changes of iron,sulfur and other elements in black and smelly water were discussed. It is clear that the formation of the black and stink is mainly caused by blackening factors and stink-causing factors. It is concluded that the main blackening factors are ferrous sulfide,manganese sulphide,and the main stink-causing factors are hydrogen sulfide,ammonia or sulfides( VOSCs),josamidine and 2-dimethyl isobenol based on sulfur elements. It provides theoretical reference for the control of black and smelly river water in island cities.
