CN103398886A - Online water quality digestion system - Google Patents
Online water quality digestion system Download PDFInfo
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- CN103398886A CN103398886A CN2013103418166A CN201310341816A CN103398886A CN 103398886 A CN103398886 A CN 103398886A CN 2013103418166 A CN2013103418166 A CN 2013103418166A CN 201310341816 A CN201310341816 A CN 201310341816A CN 103398886 A CN103398886 A CN 103398886A
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- water quality
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- quality digestion
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Abstract
The invention relates to an online water quality digestion system comprising: a solenoid valve used for opening and closing a sampling valve, a peristaltic pump used for precisely controlling water sample flow speed, a quartz sinuous coil wound on a UV lamp tube, and a UV lamp used for degrading organics in water. When the water sample passes the quartz sinuous coil, the system turns on the UV lamp tube for irradiation for carrying out digestion.
Description
Technical field
The present invention relates to a kind of online water quality digestion system.Especially, the present invention relates to a kind of for water quality detection process water sample pretreatment process.
Background technology
Development along with world economy; natural resources and physical environment are subject to day by day serious destruction; the pollutant kind that is discharged in environment is more and more; comprise organism, inorganics and microorganism etc.; mainly be distributed in atmosphere, water quality, soil, solid waste and biosome; environment and human health are had harm, and environmental protection has become problem highly visible.Electrochemical techniques are due to himself characteristic, at aspects such as the monitoring of environmental contaminants and environmental pollution improvements, play an important role.But the disadvantage that Electrochemical Detection exists is exactly the electrochemical sensor surface easily to be caused polluting by the absorption of the Organic Pollution in water quality, greatly reduces detection efficiency.
Business-like water quality on-line detecting system has had robotization and unattended function substantially, and in this supporting online water quality digestion system, rarely have report, Given this, develop a kind of possess simultaneously simple, have efficiently clear up efficiency the water quality detection pre-processing module necessary, this has great importance in fields such as water quality detection, water treatments.
Summary of the invention
the purpose of this invention is to provide a kind of online water quality digestion system, it is based on the UV mechanism of degradation, after ultraviolet (UV) shines on hydrone, can excite hydrone to produce hydroxyl radical free radical, hydroxyl radical free radical is the present mankind the strongest known oxygenants, organism had extremely strong oxidative degradation, metal complex in water is after UV processes, the rock-steady structure of complex compound is destroyed, make the metallic ion in metal complex be released, be easier to detect with electrochemical method, therefore can use the total tenor of electrochemical method determining sample through the analytic sample of UV degraded, and the ultraviolet digestion of water sample can effectively slow down the shielding effect of organism to electrode surface in water body,, to reach the effect that extends electrode life, improves the work efficiency of system.
For achieving the above object, online water quality digestion system of the present invention comprises: solenoid valve; Peristaltic pump, quartzy coiled pipe, UV fluorescent tube.
Typically, water sample flows into degeneration system from inlet, and the quartzy coiled pipe of flowing through, flow out from liquid outlet finally.
Described peristaltic pump can reduce the water sample secondary pollution and the measuring error brought, and peristaltic pump is controlled rotating speed by computer software, can accurately control the extraction volume of water sample.
Described UV fluorescent tube by quartzy coiled pipe around, aqueous sample stream when the English coiled pipe, system is opened the UV fluorescent tube and is cleared up.
The water quality of described digestion system is cleared up efficiency and is directly proportional with the UV power of lamp tube, with the peristaltic pump rotating speed, is inversely proportional to.Typically, the wavelength coverage of UV is 150-300nm, and power is 5-30mW.cm
-2
Typically, this system is by controlling software control, and time and the frequency condition change per sample of taking a sample and clearing up sample are applicable to the sample pretreatment process of water sample detection of heavy metal ion.
Typically, the water sample after processing is transferred to the Electrochemical Detection module through liquid outlet and detects.
Description of drawings
Fig. 1. be online water quality digestion system structural representation of the present invention.
In figure: 1, liquid inlet, 2, solenoid valve, 3, peristaltic pump, 4, quartzy coiled pipe, 5, the UV fluorescent tube, 6, the lamp power supply, 7, liquid outlet, 8, water (flow) direction.
Specific embodiments
Embodiment 1
Control module controls opens solenoid valve and peristaltic pump extracts water sample to be measured to quartzy coiled pipe and slowly flows, and optimizes the peristaltic pump rotating speed, is that water flow velocity is 0.5mL/s; Open subsequently the UV fluorescent tube, regulate the UV irradiation power to 20mW.cm
-2, carrying out water sample UV and clear up, the water sample after processing is transferred to the Electrochemical Detection module through liquid outlet and detects.
Control module controls opens solenoid valve and peristaltic pump extracts water sample to be measured to quartzy coiled pipe and slowly flows, and optimizes the peristaltic pump rotating speed, is that water flow velocity is 1mL/s; Open subsequently the UV fluorescent tube, regulate the UV irradiation power to 30mW.cm
-2, carrying out water sample UV and clear up, the water sample after processing is transferred to the Electrochemical Detection module through liquid outlet and detects.
Claims (10)
1. an online water quality digestion system, is characterized in that, described online water quality digestion system comprises: inlet, solenoid valve; Peristaltic pump, quartzy coiled pipe, UV fluorescent tube, liquid outlet.
2., by online water quality digestion system claimed in claim 1, it is characterized in that, water sample flows into degeneration system from inlet, and the quartzy coiled pipe of flowing through, flow out from liquid outlet finally.
3., by online water quality digestion system claimed in claim 1, it is characterized in that, peristaltic pump is controlled rotating speed by computer software, can accurately control the extraction volume of water sample.
4. by online water quality digestion system claimed in claim 1, it is characterized in that, peristaltic pump can reduce the water sample secondary pollution and the measuring error brought.
5., by online water quality digestion system claimed in claim 1, it is characterized in that quartzy coiled pipe is wrapped in the UV fluorescent tube.
6., by online water quality digestion system claimed in claim 1, it is characterized in that, aqueous sample stream is when the English coiled pipe, and system is opened the UV fluorescent tube and cleared up.
7., by online water quality digestion system claimed in claim 1, it is characterized in that, clear up efficiency and be directly proportional with the UV power of lamp tube.
8., by online water quality digestion system claimed in claim 1, it is characterized in that, the wavelength coverage of UV is 150-300nm, and power is 5-30mW.cm
-2
9., by online water quality digestion system claimed in claim 1, it is characterized in that, clear up efficiency and be inversely proportional to the peristaltic pump rotating speed.
10. by online water quality digestion system claimed in claim 1, it is characterized in that, this system is by controlling software control, and time and the frequency condition change per sample of taking a sample and clearing up sample are applicable to the sample pretreatment process of water sample detection of heavy metal ion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103418166A CN103398886A (en) | 2013-08-07 | 2013-08-07 | Online water quality digestion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103418166A CN103398886A (en) | 2013-08-07 | 2013-08-07 | Online water quality digestion system |
Publications (1)
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| CN103398886A true CN103398886A (en) | 2013-11-20 |
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Family Applications (1)
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| CN2013103418166A Pending CN103398886A (en) | 2013-08-07 | 2013-08-07 | Online water quality digestion system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613794A (en) * | 2004-11-15 | 2005-05-11 | 中国海洋大学 | Automatic digester for dissolving organic nitrogenous and phosphor in sea water |
| CN1936546A (en) * | 2006-10-19 | 2007-03-28 | 四川大学 | Method for detecting chemical oxygen request-amount based on light-catalytic chemical illumination and detection device |
| CN201285384Y (en) * | 2008-11-14 | 2009-08-05 | 烟台海岸带可持续发展研究所 | Heavy metal content detector |
| CN101915686A (en) * | 2010-07-09 | 2010-12-15 | 江南大学 | Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device |
| CN102221497A (en) * | 2011-03-22 | 2011-10-19 | 湖南力合科技发展有限公司 | Water sample pretreatment device |
| CN202372395U (en) * | 2011-12-20 | 2012-08-08 | 深圳市中兴环境仪器有限公司 | Ultraviolet digestion system |
-
2013
- 2013-08-07 CN CN2013103418166A patent/CN103398886A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613794A (en) * | 2004-11-15 | 2005-05-11 | 中国海洋大学 | Automatic digester for dissolving organic nitrogenous and phosphor in sea water |
| CN1936546A (en) * | 2006-10-19 | 2007-03-28 | 四川大学 | Method for detecting chemical oxygen request-amount based on light-catalytic chemical illumination and detection device |
| CN201285384Y (en) * | 2008-11-14 | 2009-08-05 | 烟台海岸带可持续发展研究所 | Heavy metal content detector |
| CN101915686A (en) * | 2010-07-09 | 2010-12-15 | 江南大学 | Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device |
| CN102221497A (en) * | 2011-03-22 | 2011-10-19 | 湖南力合科技发展有限公司 | Water sample pretreatment device |
| CN202372395U (en) * | 2011-12-20 | 2012-08-08 | 深圳市中兴环境仪器有限公司 | Ultraviolet digestion system |
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Application publication date: 20131120 |