KR101303349B1 - Continuous measurement method TRO(Total Residual Oxidant) measuring devices - Google Patents

Continuous measurement method TRO(Total Residual Oxidant) measuring devices Download PDF

Info

Publication number
KR101303349B1
KR101303349B1 KR1020110128067A KR20110128067A KR101303349B1 KR 101303349 B1 KR101303349 B1 KR 101303349B1 KR 1020110128067 A KR1020110128067 A KR 1020110128067A KR 20110128067 A KR20110128067 A KR 20110128067A KR 101303349 B1 KR101303349 B1 KR 101303349B1
Authority
KR
South Korea
Prior art keywords
water
tro
concentration
housing
measuring
Prior art date
Application number
KR1020110128067A
Other languages
Korean (ko)
Other versions
KR20130061811A (en
Inventor
박규원
김성태
이해돈
박용석
이광호
문현주
Original Assignee
(주) 테크로스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주) 테크로스 filed Critical (주) 테크로스
Priority to KR1020110128067A priority Critical patent/KR101303349B1/en
Publication of KR20130061811A publication Critical patent/KR20130061811A/en
Application granted granted Critical
Publication of KR101303349B1 publication Critical patent/KR101303349B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/002—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating ballast water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1826—Water organic contamination in water

Abstract

본 발명은 채수 파이프 내 이송되는 선박평형 수 또는 처리 수(이하, 채수)의 산화제 농도를 측정하는 TRO(Total Residual Oxidant: 총 잔여 산화제) 측정장치에 있어서, 상기 채수 파이프의 측면에 위치하는 하우징과, 상기 하우징 내부에 위치하며 TRO 농도를 측정하는 센싱부와, 상기 채수를 하우징으로 유입 또는 배출시키는 인렛 및 아웃렛 워터실(Inlet and Outlet Water Seal)로 구성하되, 상기 센싱부는 실시간 TRO 농도 측정을 위하여 인렛 및 아웃렛 워터실 일측과 연결 형성하며 DPD 시약을 투입하는 시약투입부와, 상기 시약투입부 후방에 형성하며 DPD 시약이 투입된 채수에 빛을 투과시켜 TRO 농도를 측정하는 농도 측정부를 더 포함하는 것을 특징으로 하는 연속측정방식의 TRO 측정장치.The present invention is a total residual oxidant (TRO) measuring device for measuring the oxidant concentration of the ballast water or the treated water (hereinafter referred to as `` water '') transported in the water collection pipe, the housing located on the side of the water collection pipe and And a sensing unit located inside the housing to measure TRO concentration, and an inlet and outlet water seal for introducing or discharging the water into the housing, wherein the sensing unit is configured for real-time TRO concentration measurement. It further comprises a reagent input unit for connecting the inlet and the outlet water chamber and injecting the DPD reagent, and a concentration measurement unit formed behind the reagent input unit and measuring the TRO concentration by transmitting light to the water into which the DPD reagent is added. TRO measuring device with continuous measurement.

Description

연속측정방식의 티알오 측정장치{Continuous measurement method TRO(Total Residual Oxidant) measuring devices}Continual measurement method TRO (Total Residual Oxidant) measuring devices}

본 발명은 측정장치에 관한 것으로, 더욱 상세하게는 전기 분해된 선박평형 수 또는 수처리 수 내의 잔여 산화제 농도 측정을 위한 TRO(Total Residual Oxidant) 측정장치에 관한 것이다.
The present invention relates to a measuring device, and more particularly, to a total residual oxidant (TRO) measuring device for measuring the residual oxidant concentration in electrolyzed ballast water or water treatment water.

종래 전기분해 방식을 통한 수처리 장치는 해수를 포함한 선박평형(이하, 밸러스트) 수 또는 처리 수에 전기분해 또는 염소투입 등에 따라 활성물질이 발생되는 산화제의 농도(TRO: Total Residual Oxidant)를 측정하기 위한 측정장치를 더 포함하였다.Conventional electrolysis water treatment apparatus for measuring the total concentration of the oxidant (TRO: Total Residual Oxidant) active material is generated by the electrolysis or chlorine in the vessel equilibrium (hereinafter referred to as ballast) water or treated water including seawater It further included a measuring device.

상기 종래 측정장치는 처리된 밸러스트 수 또는 처리 수를 일부 채취(채수)한 후 DPD 시약을 투입하여 산화물질 농도를 측정하며, 채수를 담는 용기와, 상기 용기에 DPD 시약을 투입하는 시약 투입부와, 상기 채수에 빛을 투과시켜 TRO 농도를 측정하는 측정부 및 측정 후 상기 용기를 세척하는 세척부로 구성된다.The conventional measuring device collects (gathered) a portion of treated ballast water or treated water, and then measures the oxidative concentration by adding a DPD reagent, a container containing water, a reagent input unit for injecting a DPD reagent into the container, It consists of a measuring unit for measuring the TRO concentration by transmitting light to the water and a washing unit for washing the container after the measurement.

이러한 종래 측정장치는 TRO 농도를 측정하는 한 사이클 시간이 약 2분 내외로 긴 단점으로 인하여, TRO 농도를 측정하는 동한 처리되는 밸러스트 수 또는 처리 수의 TRO 농도를 실시간으로 감시할 수 없는 단점이 있었다.Such a conventional measuring device has a disadvantage in that one cycle time for measuring the TRO concentration is about 2 minutes long, and thus it is impossible to monitor the TRO concentration of the treated ballast water or the treated water in real time while measuring the TRO concentration. .

또한, 종래 측정장치는 구성이 복잡하여 제작 및 유지보수 비용이 많이 발생하는 단점이 있었다.
In addition, the conventional measuring device has a disadvantage in that the configuration is complicated and a lot of manufacturing and maintenance costs.

상기한 종래 문제점을 해결하기 위한 본 발명의 목적은 DPD 시약을 통해 TRO 농도를 측정하는 장치에 있어서, 약 10~20초 이내의 실시간으로 TRO 농도를 측정할 수 있는 연속측정방식의 TRO 측정장치를 제공하는데 있다.An object of the present invention for solving the above-mentioned conventional problems is a device for measuring the TRO concentration through a DPD reagent, TRO measuring apparatus of the continuous measurement method that can measure the TRO concentration in real time within about 10 to 20 seconds To provide.

본 발명의 또 다른 목적은 구성을 단순화 하여 제작 및 유지보수 비용을 낮출 수 있는 연속측정방식의 TRO 측정장치를 제공하는데 있다.
Still another object of the present invention is to provide a TRO measuring apparatus of a continuous measuring method that can simplify the configuration and lower the manufacturing and maintenance costs.

상기한 종래 문제점을 해결하고 상기 목적을 달성하기 위한 본 발명의 일 실시 예에 따른 연속측정방식의 TRO 측정장치는 채수 파이프 내 이송되는 선박평형 수 또는 처리 수(이하, 채수)의 산화제 농도를 측정하는 TRO(Total Residual Oxidant: 총 잔여 산화제) 측정장치에 있어서, 상기 채수 파이프의 측면에 위치하는 하우징과; 상기 하우징 내부에 위치하며 TRO 농도를 측정하는 센싱부와; 상기 채수를 하우징으로 유입 또는 배출시키는 인렛 및 아웃렛 워터실(Inlet and Outlet Water Seal);로 구성하되, 상기 센싱부는 실시간 TRO 농도 측정을 위하여 인렛 및 아웃렛 워터실 일측과 연결 형성하며 DPD 시약을 투입하는 시약투입부와, 상기 시약투입부 후방에 형성하며 DPD 시약이 투입된 채수에 빛을 투과시켜 TRO 농도를 측정하는 농도 측정부를 더 포함하는 것을 특징으로 한다.Continuous measurement method TRO measuring apparatus according to an embodiment of the present invention to solve the conventional problems and to achieve the above object is to measure the oxidant concentration of ballast water or treated water (hereinafter, water) transported in the water pipe TRO (Total Residual Oxidant) measuring apparatus, comprising: a housing located on the side of the water pipe; A sensing unit located inside the housing and measuring a concentration of TRO; Inlet and Outlet Water Seal (Inlet and Outlet Water Seal) for introducing or discharging the water into the housing; wherein the sensing unit is connected to one side of the inlet and Outlet Water Seal for real-time TRO concentration measurement and injecting DPD reagent And a concentration measuring unit for forming a reagent inlet unit and a rear portion of the reagent inlet unit and measuring the concentration of TRO by transmitting light to the water into which the DPD reagent is added.

여기서, 상기 센싱부는 측정된 TRO 농도를 외부에 표시하는 표시부를 포함하는 것을 특징으로 한다.The sensing unit may include a display unit displaying the measured TRO concentration to the outside.

그리고, 상기 인렛 및 아웃렛 워터실은 일체형 배관 형상으로 형성되는 것을 특징으로 한다.
The inlet and the outlet water seals are formed in an integral pipe shape.

상기한 바와 같이, 본 발명의 일 실시 예에 따른 연속측정방식의 TRO 측정장치는 일체형 배관으로 형성된 인렛 및 아웃렛 워터실에 채수가 유입되는 방향으로 시약투입부와 농도 측정부를 순차적으로 위치시킴으로써, 유동(流動)하는 채수에 연속적인 DPD 시약 투입 및 약 10~20초 이내의 실시간 TRO 농도 측정이 가능한 효과가 있다.As described above, the TRO measuring apparatus of the continuous measurement method according to an embodiment of the present invention by sequentially placing the reagent input unit and the concentration measurement unit in the direction in which the water is introduced into the inlet and outlet water chamber formed by the integral pipe, flow Continuous DPD reagent addition and real-time TRO concentration measurement in about 10 to 20 seconds are possible.

또한, 본 발명은 종래 측정장치의 용기, 세척부 구성을 배제시킴으로써 제작 및 유지보수 비용을 낮출 수 있는 효과가 있다.
In addition, the present invention has the effect of lowering the manufacturing and maintenance costs by excluding the configuration of the container, the cleaning unit of the conventional measuring device.

도 1은 본 발명의 일 실시 예에 따른 연속측정방식의 TRO 측정장치를 나타낸 도면이다.1 is a view showing a TRO measuring device of the continuous measurement method according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 따른 구체적인 실시 예를 상세하게 설명하면 다음과 같다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시 예에 따른 연속측정방식의 TRO 측정장치를 나타낸 도면이다.1 is a view showing a TRO measuring device of the continuous measurement method according to an embodiment of the present invention.

도 1에 도시된 바와 같이 본 발명의 일 실시 예에 따른 연속측정방식의 TRO 측정장치(100)는 채수 파이프(10) 내 이송되는 선박평형 수 또는 처리 수(이하, 채수)의 산화제 농도를 측정하는 TRO(Total Residual Oxidant: 총 잔여 산화제) 측정장치에 있어서, 상기 채수 파이프(10)의 측면에 위치하는 하우징(110)과, 상기 하우징(110) 내부에 위치하며 TRO 농도를 측정하는 센싱부(120)와, 상기 채수를 하우징(110)으로 유입 또는 배출시키는 인렛 및 아웃렛 워터실(Inlet and Outlet Water Seal, 130)로 구성된다.As shown in FIG. 1, the TRO measuring apparatus 100 according to an exemplary embodiment of the present invention measures an oxidant concentration of ballast water or treated water (hereinafter, referred to as water), which is transported in a water pipe 10. In the TRO (Total Residual Oxidant) measuring device, the housing 110 which is located on the side of the water pipe 10, the sensing unit which is located in the housing 110 and measures the TRO concentration ( 120 and an inlet and outlet water seal 130 for introducing or discharging the water into the housing 110.

여기에서, 센싱부(120)는 실시간 TRO 농도 측정을 위하여 인렛 및 아웃렛 워터실(130) 일측과 연결 형성하여 DPD 시약을 투입하는 시약투입부(121)와, 상기 시약투입부(121) 후방에 형성하여 DPD 시약이 투입된 채수에 빛을 투과시켜 TRO 농도를 측정하는 농도 측정부(122)를 더 포함한다.Here, the sensing unit 120 is connected to one side of the inlet and the outlet water chamber 130 to measure the real-time TRO concentration, and the reagent input unit 121 for inputting the DPD reagent, and behind the reagent input unit 121 Formation further comprises a concentration measuring unit 122 for measuring the TRO concentration by transmitting light to the water into which the DPD reagent is added.

이때, 센싱부(120)는 측정된 TRO 농도를 외부에 표시하는 표시부를 포함한다.In this case, the sensing unit 120 includes a display unit which displays the measured TRO concentration to the outside.

그리고, 인렛 및 아웃렛 워터실(130)은 일체형 배관 형상으로 형성된다.The inlet and outlet water chambers 130 are formed in an integral pipe shape.

상기한 바와 같이, 본 발명의 일 실시 예에 따른 연속측정방식의 TRO 측정장치(100)는 일체형 배관으로 형성된 인렛 및 아웃렛 워터실(130)에 채수가 유입되는 방향으로 시약투입부(121)와 농도 측정부(122)를 순차적으로 위치시킴으로써, 유동(流動)하는 채수에 연속적인 DPD 시약 투입 및 약 10~20초 이내의 실시간 TRO 농도 측정이 가능한 효과가 있다.As described above, the TRO measuring apparatus 100 of the continuous measurement method according to an embodiment of the present invention is a reagent input portion 121 and the direction in which water is introduced into the inlet and outlet water chamber 130 formed of an integral pipe; By sequentially placing the concentration measuring unit 122, it is possible to continuously input the DPD reagent to the flowing water and to measure the real-time TRO concentration within about 10 to 20 seconds.

또한, 본 발명은 종래 측정장치의 용기, 세척부 구성을 배제시킴으로써 제작 및 유지보수 비용을 낮출 수 있는 효과가 있다.In addition, the present invention has the effect of lowering the manufacturing and maintenance costs by excluding the configuration of the container, the cleaning unit of the conventional measuring device.

이상에서 설명한 바와 같이, 본 발명의 상세한 설명에서는 본 발명의 바람직한 실시 예에 관하여 설명하였으나, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명의 범주에서 벗어나지 않는 한도 내에서 여러 가지 변형이 가능함은 물론이다. 따라서 본 발명의 권리 범위는 설명된 실시 예에 국한되어 정해져서는 안되며, 후술하는 청구범위뿐만 아니라, 이와 균등한 것들에 의해 정해져야 한다.
While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of course, this is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the equivalents as well as the claims that follow.

10 : 채수 파이프 100 : TRO 측정장치
110 : 하우징 120 : 센싱부
121 : 시약투입부 122 : 농도 측정부
130 : 인렛 및 아웃렛 워터실10: collection pipe 100: TRO measuring device
110 housing 120 sensing unit
121: reagent injection unit 122: concentration measuring unit
130: inlet and outlet water seal

Claims (3)

채수 파이프에 연결되어 위치하고, 상기 채수 파이프 내부를 흐르는 채수를 인입받아 상기 채수의 총 잔류 산화물질(TRO, total residual oxidant) 농도를 측정하는 센싱부를 구비하는 하우징, 그리고
상기 채수 파이프 및 상기 하우징과 연결되어 있고, 상기 채수 파이프 내부를 흐르는 상기 채수를 상기 하우징 내부로 유입하거나 상기 하우징에 유입되어 상기 센싱부에 의해 총 잔류 산화물질 농도 측정이 완료된 채수를 상기 하우징 외부로 배출시키는 인렛 및 아웃렛 워터실(Inlet and Outlet Water Seal)
을 포함하고,
상기 센싱부는, 상기 인렛 및 아웃렛 워터실을 통해 상기 하우징 내부로 유입된 채수에 DPD 시약을 투입하는 시약 투입부,
상기 시약 투입부로부터 상기 DPD 시약이 투입된 채수에 빛을 투과시켜 총 잔류 산화물질 농도를 측정하는 농도 측정부, 그리고
상기 농도 측정부로부터 측정된 채수의 총 잔류 산화물질 농도를 표시하는 표시부
를 포함하는 연속측정방식의 TRO 측정장치.A housing having a sensing unit connected to a water collecting pipe and receiving a water flowing in the water collecting pipe to measure a total residual oxidant (TRO) concentration of the water;
The water is connected to the water pipe and the housing, and the water flowing into the housing flows into the housing, or flows into the housing to complete the total residual oxide concentration measurement by the sensing unit. Inlet and Outlet Water Seal
/ RTI >
The sensing unit, a reagent input unit for injecting the DPD reagent into the water taken into the housing through the inlet and outlet water chamber,
Concentration measuring unit for measuring the total residual oxide material concentration by transmitting the light through the DPD reagent input water from the reagent input unit, and
Display unit for displaying the total residual oxide concentration of the water measured from the concentration measuring unit
TRO measuring device of the continuous measurement method comprising a. 삭제delete 제1항에서,
상기 인렛 및 아웃렛 워터실은 일체형 배관으로 형성되는 연속측정방식의 TRO 측정장치.
In claim 1,
The inlet and the outlet water seal is a TRO measuring device of the continuous measurement method formed of an integral pipe.
KR1020110128067A 2011-12-02 2011-12-02 Continuous measurement method TRO(Total Residual Oxidant) measuring devices KR101303349B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110128067A KR101303349B1 (en) 2011-12-02 2011-12-02 Continuous measurement method TRO(Total Residual Oxidant) measuring devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110128067A KR101303349B1 (en) 2011-12-02 2011-12-02 Continuous measurement method TRO(Total Residual Oxidant) measuring devices

Publications (2)

Publication Number Publication Date
KR20130061811A KR20130061811A (en) 2013-06-12
KR101303349B1 true KR101303349B1 (en) 2013-09-03

Family

ID=48859729

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110128067A KR101303349B1 (en) 2011-12-02 2011-12-02 Continuous measurement method TRO(Total Residual Oxidant) measuring devices

Country Status (1)

Country Link
KR (1) KR101303349B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105259170A (en) * 2015-10-21 2016-01-20 烟台凯米斯仪器有限公司 On-line analyzer for TRO (total residual oxidants) in water
KR102164207B1 (en) 2020-03-04 2020-10-12 (주) 테크로스 Apparatus for removing turbidity by using ultrasonics
KR20210006805A (en) 2019-07-09 2021-01-19 주식회사 신우이앤티 Water quality measurement system of ship ballast water

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106432A1 (en) * 2013-06-20 2014-12-24 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optical indicator unit and device and method for determining a physico-chemical property of a process medium in a process plant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090116658A (en) * 2008-05-07 2009-11-11 (주) 테크로스 Treatment system for ballast water
WO2010093025A1 (en) 2009-02-16 2010-08-19 株式会社クラレ Filtfering unit and ballast water production equipment provided with same
KR101000325B1 (en) * 2007-06-01 2010-12-13 세번 트렌트 데 노라, 엘엘씨 System and process for treatment and de-halogenation of ballast water
KR20110050289A (en) * 2009-11-06 2011-05-13 주식회사 파나시아 A ballast water realtime monitering device and monitering method using thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101000325B1 (en) * 2007-06-01 2010-12-13 세번 트렌트 데 노라, 엘엘씨 System and process for treatment and de-halogenation of ballast water
KR20090116658A (en) * 2008-05-07 2009-11-11 (주) 테크로스 Treatment system for ballast water
WO2010093025A1 (en) 2009-02-16 2010-08-19 株式会社クラレ Filtfering unit and ballast water production equipment provided with same
KR20110050289A (en) * 2009-11-06 2011-05-13 주식회사 파나시아 A ballast water realtime monitering device and monitering method using thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105259170A (en) * 2015-10-21 2016-01-20 烟台凯米斯仪器有限公司 On-line analyzer for TRO (total residual oxidants) in water
KR20210006805A (en) 2019-07-09 2021-01-19 주식회사 신우이앤티 Water quality measurement system of ship ballast water
KR102164207B1 (en) 2020-03-04 2020-10-12 (주) 테크로스 Apparatus for removing turbidity by using ultrasonics

Also Published As

Publication number Publication date
KR20130061811A (en) 2013-06-12

Similar Documents

Publication Publication Date Title
KR101303349B1 (en) Continuous measurement method TRO(Total Residual Oxidant) measuring devices
ES2821944T3 (en) Biofilm growth detection system and procedure in water systems
JP2015514565A5 (en)
CN100574842C (en) The method of determining the replaceable cartridge exhaustion situation of filter kettle reaches the kettle of method operation according to this
CN106525751A (en) Polluted soil sampling detection device
FI20002169A (en) Apparatus and method for measuring the amount of liquid matter entering an uneven flow
CN107917947A (en) A kind of online water quality detecting device
EP3384824B1 (en) Endoscope reprocessor
WO2008123305A1 (en) Method of measuring gas hydrate concentration, apparatus therefor and control of gas hydrate formation thereby
CN106501475B (en) A kind of water monitoring device of tap water pipe network
CN105699138A (en) Fluid bubble removing device and water quality monitoring system
JP6105681B2 (en) Unmanned automatic alkalinity measurement system and method
KR101395637B1 (en) Measuring method for total residual oxidant of ballast water
KR100786883B1 (en) Deposition method sensor soaping machine
CN208872747U (en) A kind of monitoring water quality on line, analysis system
KR20140076715A (en) Apparatus for the measurement of Water ordor
KR20110113328A (en) Water sensing and cleanup apparatus of golf links pond
CN203249917U (en) Monitoring device for soil gas multi-component accumulation emission in CO2 oil displacement region
US20150192523A1 (en) Chlorine Detection and pH Sensing Methods and Apparatus
CN108195995A (en) The measuring device of carbonate content in a kind of marine sediment
CN109188497A (en) Open loop type measures the device and method of radium concentration in water using Effective Decay Constant
CN105467140B (en) Mercury automatic checkout system and its pretreatment unit
CN204374187U (en) For measuring the container of the physical-chemical parameters of water sample
KR101219718B1 (en) Automatically disinfectant re-injection device for pipe and disinfectant re-injection method
CN207300892U (en) A kind of water to be measured and photobacteria on-line mixing reaction checking device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20151201

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20170726

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20180725

Year of fee payment: 6