Pain Points of Cooling Circulating Water
Cooling circulating water systems face a series of severe challenges during operation, including microbial growth, biofilm formation, scaling, and corrosion. These issues are primarily controlled by traditional chemical treatment methods (such as chlorine-based disinfectants and corrosion and scale inhibitors). Ultraviolet (UV) disinfection technology, ozone (O3) technology, and ultraviolet advanced oxidation processes (UV-AOPs) offer significant potential as alternatives or supplements to traditional chemical treatment methods due to their unique green, additive-free disinfection and oxidation properties.
Application of UV and Ozone in Cooling Circulating Water:
In industrial cooling circulating water, the primary goal of UV disinfection is to control the growth of microorganisms such as bacteria (such as Legionella) and algae, preventing the formation of biofilms on heat exchanger surfaces and pipe linings. Biofilms not only reduce heat transfer efficiency and increase energy consumption, but also induce microbial corrosion (MIC), shortening equipment life.
Ozone (O3) is a strong oxidant. In water, ozone can react with pollutants through direct oxidation and indirect oxidation. It inhibits the formation and development of biofilm by killing microorganisms and oxidizing the biofilm matrix. Ozone can loosen and fall off the organic matter in the oxidized scale layer, or change the crystal form of calcium carbonate, thereby playing a certain role in descaling.
Ultraviolet advanced oxidation process (UV-AOP) is a water treatment method that uses ultraviolet light irradiation combined with one or more oxidants (such as hydrogen peroxide (H2O2) and ozone (O3)) or catalysts to generate large amounts of highly reactive hydroxyl radicals (OH) in situ. Hydroxyl radicals possess extremely strong, non-selective oxidative power, rapidly degrading various difficult-to-degrade organic pollutants and killing microorganisms in water. UV-AOP exhibits unique application potential in industrial cooling water systems with stringent water quality requirements or the presence of specific contaminants.
Typical ozone + UV combined treatment of circulating cooling water process flow chart
可采用单点或多点注入的方式将含臭氧水注入间冷开式循环冷却水系统或冷却塔集水池中,中压紫外线设备安装至换热设备之前。运行中监测循环冷却水中的臭氧浓度至控制范围。
Extrem中压紫外
ONYX-Extrem-GY中压系列产品是一款机身紧凑,但可处理大容量水质的中压紫外线反应器。可应用在对空间有要求,对水质、口感、味道或气味有要求的用水环境。
清洁生产,满足如蛋白纯化、氨基酸分析、生物大分子分析、细胞培养和DNA/RNA提取纯化的用水消毒需求。
适用于:发电厂、冷却循环水、医药、生命科学等应用领域。
UV-Oxidation紫外光氧化
紫外光氧化(UV-Oxidation)是一种高级氧化技术,利用紫外光(UV) 激发氧化剂产生强氧化性自由基(主要是·OH羟基自由基),高效降解水中的有机污染物。具有无垃圾生产方式(无二次污染)、具有广谱性(适合大部分废水的处理)、有效处理难降解废水和高浓度废水(最高300000 mg/L COD)、生物利用率能得到很大的提高(最高达接近100%)等突出特点,可广泛应用于工业废水预处理、深度处理领域。
EX-U紫外消毒器
ONYX-EX-U系列产品采用管道式结构设计,进出口法兰连接,采用高强度耐腐蚀不锈钢304/316L材质,全密闭和紧凑结构设计。
ONYX-EX-U融合了包括食品卫生级加工、自动机械清洗、CFD流态模拟等技术在内的创新技术,以降低成本,大大简化操作和维护。
镇流器、工作指示、时间累时、报警系统均置于控制箱内;具有杀菌力强、寿命长,运行稳定的特点。其杀菌效率≥99.9%,灯管使用寿命≥12000小时。
COG板式臭氧发生器
COG系列臭氧发生器内置ModuOzone®高浓度臭氧放电室及专用高频数字电源控制驱动系统,放电室采用高纯氧化铝陶瓷材料、超微间隙高频放电、高效水冷或风冷散热设计,保证设备输出的臭氧浓度及效率。设备集成免维护高效空压机和高纯度制氧系统,适用于各种应用工况。COG系列臭氧发生器集成压力调节阀、流量计及液晶触摸屏,可以设置臭氧浓度及不同产量的臭氧输出。设备具有结构紧凑、操作简单、方便安装、易于维护等特点,可广泛应用于水处理、除臭、脱色、制药、废水处理、食品加工等领域。
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