Water is an important material resource for human survival,and with the increasing development of society,the amount of urban industrial wastewater and domestic sewage is gradually increasing.However,wastewater collec...Water is an important material resource for human survival,and with the increasing development of society,the amount of urban industrial wastewater and domestic sewage is gradually increasing.However,wastewater collection and treatment facilities lag behind,so that a large number of wastewater enters urban water,making urban water become gradually black and smelly.In order to provide a good living environment for human beings,a large number of scholars actively explore the treatment technology of black and smelly water.In this paper,the evolution process of black and smelly water was introduced firstly,and then the treatment technology of black and smelly water was summarized.Finally,the prospects for the development of the treatment technology were put forward.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
文摘Water is an important material resource for human survival,and with the increasing development of society,the amount of urban industrial wastewater and domestic sewage is gradually increasing.However,wastewater collection and treatment facilities lag behind,so that a large number of wastewater enters urban water,making urban water become gradually black and smelly.In order to provide a good living environment for human beings,a large number of scholars actively explore the treatment technology of black and smelly water.In this paper,the evolution process of black and smelly water was introduced firstly,and then the treatment technology of black and smelly water was summarized.Finally,the prospects for the development of the treatment technology were put forward.
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.
