Pollutant aerobic biological degradation breath measuring method and device
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of aerobic biology and measurement methods, which is applied in the direction of measurement devices, biochemical equipment and methods, and microbial measurement/inspection, and can solve the problems of limited test frequency, low test frequency, and low test accuracy.
Inactive Publication Date: 2009-05-27
CHONGQING UNIV
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
For example, the RA-1000 respiration measuring instrument developed by the Environmental Technology Department of Wageningen Agricultural University in the Netherlands, this respiration instrument uses the same sensor to measure the dissolved oxygen concentration of the inlet and outlet mixture by changing the flow direction, thus limiting the test frequency of OUR
[0007] In practical application, the above respiration measurement methods and devices all have defects such as low test accuracy and low test frequency.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0054] When the glucose solution with a concentration of 20gCOD / L is used as the sample to be tested, the method is carried out in the following steps:
[0055] (1) Check the dissolved oxygen sensor in the air;
[0056] (2) Keep the clear water in the tank at 20°C;
[0057] (3) Add 4000ml of activated sludge mixture to the aeration chamber, with a concentration of 1000mgMLVSS / L;
[0058] (4) The air flow rate that feeds into the aeration chamber is 0.1L / min; Turn on the magnetic stirrer respectively, make the agitating rotor at the bottom of the aeration chamber and the bottom of the breathing chamber rotate, and the stirring speed is 100 rev / min;
[0059] (5) Open the peristaltic pump, make its flow rate be 200ml / min, make the activated sludge mixture circulate in the measuring chamber, breathing chamber and aeration chamber of the breathing chamber inlet and outlet measuring chamber through the pipeline;
[0060] (6) Open the oxygen utilization rate test software and set t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention is a pollutant aerobic-biodegradation breathing measuring method and device, relating to a method and device for measuring oxygen utilization ratio in the course of processing waste water by aerobes. And the measuring method comprises the steps of: checking dissolved oxygen sensor, keeping temperature of water tank constant, putting in microbial mixed solution, blending, circulating mixed solution, setting parameters, putting in to-be-measured sample and calculating; and the measuring device comprises water tank, magnetic blending mechanism, aeration mechanism, aeration chamber, breathing chamber, measuring chamber, pH sensor, dissolved oxygen sensor, signal transmit lines, transducer terminal box, computer and oxygen utilization ratio measuring software. And the invention has advantages of less interference, high testing accuracy and frequency, high instrument automation degree, etc. and it is applied to the aspects of city sewage composition characterization, inlet water toxicity detection, evaluation and early- warning in sewage factory, process control and operation management in sewage factory, etc.
Description
technical field [0001] The invention relates to a pollutant aerobic biodegradation respiration measurement method and device, in particular to measuring the oxygen utilization rate (Oxygen Utilization / Uptake Rate, OUR) of pollutants in activated sludge microbial aerobic degradation sewage, which is suitable for urban Characterization of sewage components, detection of toxic substances in sewage treatment plant influent, assessment and early warning of toxic effects, process control and operation management of urban sewage treatment plants, and laboratory research on process kinetics of activated sludge in sewage treatment, etc., belong to the field of sewage treatment technology . Background technique [0002] In the prior art, the usual respiration measurement methods and devices are mainly divided according to two criteria: (1) measuring the oxygen concentration in the liquid phase or the gas phase; (2) whether there is liquid or gas input and output (dynamic or static) ....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.