摘要
臭氧消毒是工厂化水产养殖中水处理的关键技术之一。为了提高臭氧的混合效率,依据臭氧溶解理论,研发了一种多层式臭氧混合装置,并开展了不同类型的填料、气液比、填料高度对臭氧溶解效率的影响研究。结果表明,采用鲍尔环作为填料,在一定范围内减小气液比、增加填料高度,有利于提高臭氧的溶解效率。当填料高度为0.7m、水流量为6 m3/h、臭氧化气体流量为0.1 m3/h时,即气液比为1/60、水处理量为190 m3/h·m2,臭氧的溶解效率可以达到78%左右。该装置具有结构简单、体积小、易于安装与维护、混合效率高和不易堵塞等特点,为优化循环水养殖水处理工艺与系统、提高臭氧混合效率和经济性提出了一种确实可行的良好方式。
Ozone disinfection is one of the key technologies in water treatment of industrial aquaculture. In order to improve the efficiency of ozone mixing, a multi-layer ozone mixing device was researched and developed based on the theory of ozone dissolution, and effects of different types of packing, vapor liquid ratio and packing height on ozone dissolution efficiency were studied. The results showed that using pall ring as filler, reducing the vapor liquid ratio within a certain scope and increasing the packing height would improve efficiency of ozone dissolution. When packing height was 0.7 m, water flow was 6 m^3/h and ozone gas flow rate was 0.1 m^3/h, which meant that vapor liquid ratio was 1/60, water treatment capacity was 190 m^3/h ·m^2, ozone dissolution efficiency reached 78%. The device has the advantages of simple structure, small volume, easy installation and maintenance, high mixing efficiency and no blockage, can be optimized for the water treatment process and system of recirculating aquaculture, and puts forward a feasible way for good mixing efficiency and economic efficiency.
出处
《广东农业科学》
CAS
CSCD
北大核心
2014年第10期115-119,131,共6页
Guangdong Agricultural Sciences
基金
国家现代农业产业技术体系建设专项(CARS-50)
国家科技支撑计划项目(2012BAD25B03)
关键词
水产养殖
臭氧
混合装置
效率
气液比
aquaculture
ozone
mixing device
efficiency
vapor liquid ratio
