Abstract:
본 발명은 수처리 기술에 관한 것으로, 특히 브로메이트 검출 장치 및 그를 이용한 수처리 시스템에 관한 것이며, 그 구조가 단순하며 미량분석이 가능한 브로메이트 검출 장치와, 그를 이용하여 미량분석이 가능하며 브로메이트의 연속적인 측정, 감시 및 제어가 가능한 수처리 시스템을 제공하고자 한다. 본 발명에서는 브로메이트의 미량검출을 위하여 FIA(flow injection anlysys) 시스템을 이용한 흡광도 분석법을 채용하였다. 이와 더불어 본 발명에서는 브로메이트 검출 장치의 구조를 단순화하였다. 본 발명으로부터 제공되는 특징적인 브로메이트 검출 장치는 클로로프로마진/염산 혼합 시약과, 시료수를 선택적으로 혼합수단에 유입시키기 위한 선택적 유입수단; 상기 혼합 시약과, 상기 증류수 또는 시료수를 혼합하기 위한 상기 혼합수단; 상기 혼합수단을 통해 제공된 혼합용액 내의 브로메이트를 검출하기 위한 흡광도 분석수단; 및 상기 선택적 유입수단을 제어하기 위한 제어수단을 포함한다.
Abstract:
수산화라디칼을주요기작으로유해물질을처리하는데적용되는자외선/과산화수소고도산화공정에서단일연속흐름주입관로상에서시료의유속을변경하고자외선강도를일정하게유지하는연속흐름주입방식을적용함으로써, 증류수로희석배율이조정된과산화수소의농도및 지표물질인로다민 B를실시간으로측정할수 있고, 또한, 상수고도처리나하수방류수에서미량유기오염물질을제거하기위하여적용되는고도산화공정에서수산화라디칼소모인자지수를실시간측정함으로써, 자외선/과산화수소고도산화공정을통해서제거되는유해물질의정량적제거능, 자외선조사량및 과산화수소투입량을정확하게산출할수 있으며, 또한, 자외선/과산화수소고도산화공정에대한실시간자가진단및 공정최적화가가능하므로, 수산화라디칼을극대화시키는기술로실용화할수 있는, 고도산화공정의수산화라디칼소모인자지수실시간측정장치및 그방법이제공된다.
Abstract:
PURPOSE: A method for controlling advanced oxidation process by control of CT(C: Concentration of disinfectant, T: Contact time) value based on concentration of residual ozone and flowrate of raw wastewater. CT value indicates the oxidizing power of ozone. According to the method, concentration of residual ozone and flowrate of raw wastewater are measured instantly for calculating CT value. Ozone and hydrogen peroxide are injected into wastewater according to calculated CT value. CONSTITUTION: The system includes: an ozone/AOP contactor(2) for reacting ozone and hydrogen peroxide with wastewater; a means(4) for measuring flowrate of raw wastewater; a means(5) for measuring concentration of residual ozone; an ozone generator(8) supplying ozone to the ozone/AOP contactor.
Abstract:
PURPOSE: An automatic control apparatus of an advanced oxidation and a method thereof are provided to be able to provide stable and safe water by variably controlling the system operation in consideration of the total reactivity of chemical components inhibiting the production of OH radical in the inflow water, and treating the trace amount of medical substances existing in the water to be processed, tastes and odor materials, and to be able to save energy in operation. CONSTITUTION: An automatic control method of an advanced oxidation process comprises the following steps: a step of selecting elimination target contaminants by monitoring water quality factors of the source water including the UV254 absorbance; a step of measuring the OH radical production inhibition reaction index in consideration of the reactivity of chemical components inhibiting OH radical production by using rhodamine B as an indicator; a step of calculating the UV irradiation amount and the hydrogen peroxide injection amount required in the water treatment system, and the elimination capacity to the elimination target contaminant of the water treatment system in consideration of the selected elimination target contaminant and the measured OH radical production inhibition reaction index; and a step of calculating the UV irradiation amount and the hydrogen peroxide according to a target elimination capacity to the elimination target contaminant, and adjusting the UV irradiation amount and the hydrogen peroxide injection amount by comparing the calculated UV irradiation amount and hydrogen peroxide injection amount. [Reference numerals] (AA) Start; (BB) Selecting elimination target contaminants; (CC) Monitoring UV absorbance in real time (wavelength 254 nm); (DD) Database; (EE) Measuring OH radical production inhibition and reaction indexes; (FF) Extracting quantum yield, molar extinction coefficient and specific reaction rate; (GG) Selecting the rate of elimination target contaminants; (HH) Calculating UV irradiation amount and hydrogen peroxide injection amount (I_0*t) (using math formula 8); (II) (real I_0*t)> targetI_0*t)?; (JJ) Re-adjusting UV irradiation amount; (KK) Revising and control UV irradiation amount and hydrogen peroxide injection amount; (LL) End
Abstract:
PURPOSE: Ozone consumption rate constant (kc) is a factor calculating CT(C: concentration of disinfectant, T: Contact time) value indicated oxidizing power of ozone. According to the method, CT value is calculated by kc for controlling concentration of ozone and hydrogen peroxide. CONSTITUTION: The system includes: an ozone/AOP contactor(2) for reacting ozone and hydrogen peroxide with wastewater; a means(3) for measuring flowrate of raw wastewater; a means(4) for calculating kc; a pump(6) for injecting hydrogen peroxide into the ozone/AOP contactor; an ozone generator(7) supplying ozone to the ozone/AOP contactor; a means(8) for monitoring concentration of ozone supplied to the ozone/AOP contactor; and a kc control unit(9) for controlling the amount of ozone and hydrogen peroxide to be supplied.
Abstract:
PURPOSE: A consumed amount of ozone is measured instantly for calculating ozone and hydrogen peroxide demands. Then, the amount of ozone and hydrogen peroxide, corresponding to consumed amount, are injected automatically. CONSTITUTION: The system includes: a means(3) installed at one side of an ozone/AOP contactor(2) to measure raw wastewater flowrate; an I.D measurer(4) to measure instant ozone demand; a pump(6) for injecting hydrogen peroxide into the ozone/AOP contactor(2); an ozone generator(7) for supplying ozone to the ozone/AOP contactor; a means(8) for monitoring ozone concentration from the ozone generator(7).
Abstract:
PURPOSE: An apparatus for measuring decomposition velocity of ozone and a water processing system using the same are provided to consecutively measure the decomposition velocity of the ozone, to measure the decomposition velocity of the ozone in real time, and to automatically control using the apparatus. CONSTITUTION: An apparatus for measuring decomposition velocity of ozone comprises: a container of reaction of ozone for mixing condensed water of the ozone with sample water, by being supplied with the condensed water of the ozone from a provider of the condensed water of the ozone; a mixer for consecutively mixing a color reagent in a predetermined rate, by consecutively picking up the sample water; an absorbance analyzer for consecutively measure residual density of the ozone, through analyzing the residual density of the color reagent, in the sample water mixed with the color reagent; and a recorder for consecutively recording the residual density of the ozone, measured in the absorbance analyzer.