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Waste water online biological monitoring method and device

A biological monitoring and waste water technology, applied in the direction of measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems that cannot be applied in the field environment, the system can only be used seasonally, and the installation and operation costs are high, so as to achieve low cost, Easy to operate and produce convenient effects

Inactive Publication Date: 2011-10-05
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there are still many deficiencies in the online biomonitoring systems already in operation abroad, such as high installation and operation costs, poor system stability, and high false alarm rate. In temperate regions, most systems can only be used seasonally, or provide good The support system can be used all year round
Moreover, most of these are still in the laboratory research, basically unable to achieve the real field environment application outside the laboratory, and the report of field application has not been seen yet.

Method used

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  • Waste water online biological monitoring method and device
  • Waste water online biological monitoring method and device
  • Waste water online biological monitoring method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Indoor test:

[0058] Instruments and devices used:

[0059] The wastewater on-line biological monitoring device includes two sets of channel units, each unit includes a circulation pump 3, a liquid storage chamber 2, a flow chamber 1, an induction electrode 4 and a multimeter 5, and the circulation pump is placed at the bottom of the side of the liquid storage chamber away from the flow chamber, The flow chamber is connected to the flow chamber through a plastic tube, and the side wall of the flow chamber is connected to the side of the liquid storage chamber at the same height to realize the full flow exposure. Two pairs of copper electrodes with nuts are placed on the inside of the flow chamber, one pair of which is connected to the regulated power adapter As an electrical signal input end, the other pair of electrodes is connected with a multimeter through wires to form an electrical signal output end. Design and customize 12 2×8×10cm containers (with lids) made of...

Embodiment 2

[0071] Indoor test:

[0072] Instruments and devices used:

[0073] The basic structure of the waste water on-line biological monitoring device is the same as that in Example 1. 12 containers (with lids) of 2×8×10cm made of polymethyl methacrylate are designed and customized, and coordinate paper is pasted on one side of the container. The height difference is 5mm (such as Figure 13 500mL volumetric flask x 6, 100mL graduated cylinder x 1, pipette gun, pH meter, electronic balance, aeration device and constant temperature light incubator, etc.

[0074] chemical:

[0075] p-Nitrophenol (chemically pure), DMSO (analytical pure), methanol, calcium oxide, magnesium sulfate, sodium bicarbonate, potassium chloride, etc.

[0076] Experimental steps:

[0077] (A) Solution preparation: Accurately weigh 0.010g of p-nitrophenol, dissolve it with dilution water, place it in a 500mL volumetric flask, and dilute to volume with dilution water to obtain a solution with a concentration of...

Embodiment 3

[0086] Indoor pilot test:

[0087] Devices used: such as Figure 7

[0088] Experimental steps:

[0089] (A) High concentration stock solutions of two compounds (PFOA1600 mg?L) were prepared before the flow exposure experiment -1 and PFOS 800 mg?L -1 ), using no more than 0.5‰ of DMSO to aid dissolution.

[0090] (B) Add 250mL of artificially diluted aqueous solution to the reference and experimental flow-through chambers, and then put 10 adult fleas in each flow-through chamber.

[0091] (C) After the Daphnia magna was placed in the circulation chamber for 5 minutes, add 250 mL (containing 0.5‰ DMSO) of dilution water to the reference circulation chamber and 250 mL of dilution water containing PFOA to the experimental circulation chamber, and turn on the switch of the power adapter. Simultaneously start the experiment timing.

[0092] (D) Starting from time 0, the instantaneous induced currents of the reference and experimental flow chambers were recorded every 5 min ( ...

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Abstract

The invention discloses a waste water online biological monitoring method and a waste water online biological monitoring device, and belongs to the field of waste water online monitoring. The device consists of a circulating pump (3), a liquid storage chamber (2), a circulation chamber (1), an inductive electrode (4) and a multimeter (5); the circulating pump is arranged at the lateral bottom of the liquid storage chamber away from the circulation chamber, and is connected with the circulation chamber via a plastic pipe; the sidewall of the circulation chamber is connected with side surface of the liquid storage chamber at the equal height to realize flow exposure of the whole course. Two pairs of copper electrodes with nuts are arranged on the inner side of the circulation chamber, wherein one pair of the electrodes functions as an input end of an electrical signal, and the other pair of the electrodes is connected with the multimeter to form an output end of the electrical signal. The distribution of an electric field in the circulation chamber can be influenced by swimming of the tested organism daphnia, namely the change of output current or voltage. By the invention, whether the quality of the discharged water is safe can be intuitively reflected; meanwhile, an 'electronic eye' is provided for the pollution incident monitoring and the dispute resolution monitoring of an environmental monitoring department. The device disclosed by the invention is simple in structure and strong in mobility and can be used indoors and outdoors.

Description

technical field [0001] The invention relates to a method and device for on-line monitoring of wastewater, more specifically to a method and device for on-line biological monitoring of wastewater. Background technique [0002] Water is an indispensable and important resource in human production and life. On the one hand, in recent years, the total discharge of chemical wastewater in my country has always accounted for the first in the total discharge of industrial wastewater in the country, and has become a major problem of water environmental pollution in my country; among them, toxic organic compounds The problem of water pollution is particularly serious, mainly because many organic substances are carcinogenic, teratogenic, and mutagenic substances, which can cause tumors in animals, seriously affect human health and the growth of animals and plants, and then interfere and destroy ecological balance. On the other hand, due to the development of globalization, the increase o...

Claims

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Application Information

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IPC IPC(8): G01N27/60
Inventor 刘红玲郑新梅沈燕飞于红霞冯政
Owner NANJING UNIV
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