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Sewage treatment external carbon source screening device and using method thereof

A sewage treatment and screening device technology, applied in the direction of measuring devices, test sample preparation, instruments, etc., can solve the problem of high cost of carbon sources

Pending Publication Date: 2020-07-10
北控水务(中国)投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For many sewage treatment plants with a low TN ratio of influent organic matter to total nitrogen, the addition of external carbon sources has become a key measure for the stability of effluent total nitrogen. If high-quality carbon sources are not selected scientifically, the cost of carbon sources is high, and often Will bring some pressure on the operating cost of sewage treatment plants

Method used

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  • Sewage treatment external carbon source screening device and using method thereof
  • Sewage treatment external carbon source screening device and using method thereof
  • Sewage treatment external carbon source screening device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Example 1: A screening device for external carbon sources for sewage treatment, which is provided with a transparent plexiglass triangular flask 1, a bottle stopper 2, a syringe with a long needle 3, a hose 4, a hard tube 5, a magnetic rotor 6, and a magnetic stirrer 7 and beaker 8; The bottleneck of described triangular flask is provided with bottle stopper; The mixed solution that described external carbon source, anoxic pond end mud water is bottom mud, nitrate composition is contained in triangular flask; On described cork There is a needle hole for the long needle of the syringe and a mounting hole for the hard tube; the syringe with the long needle is installed on the needle hole; the hard tube is passed through the mounting hole, and its upper end Connect the hose, the lower section is located in the triangular flask; one end of the hose is installed on the upper end of the hard pipe; the other end of the hose is inserted into the pure water in the beaker; Pure w...

Embodiment 2

[0118]Embodiment 2: A method of using an external carbon source screening device for sewage treatment. Using the device and operating method in Example 1, a method for evaluating the performance of an external carbon source is established. The method for calculating the unit cost of nitrogen removal COST is the same, and will not be repeated here. In addition, the following tests and calculations are performed:

[0119] Calculate the cost of denitrification per unit (COST) and the amount of chemical oxygen demand (COD) required for denitrification per unit as Q, calculate the weight scores respectively, add the two, and the one with the highest comprehensive score is the better external carbon source;

[0120] a) Unit nitrogen removal cost COST=D / △TN, the index weight value q COST The highest is 10 points and the lowest is 5 points;

[0121] The unit nitrogen removal cost COST of the external carbon sources participating in the evaluation is sorted from small to large. The un...

Embodiment 3

[0133] Example 3: A method of using an external carbon source screening device for sewage treatment. Using the device and operation method in Example 1, a method for evaluating the performance of an external carbon source is established to calculate the cost of nitrogen removal COST and the chemical requirements for the unit of nitrogen removal. The amount of oxygen COD and the denitrification rate DNR are calculated respectively to calculate the weight score, and the three are added together, and the one with the highest comprehensive score is the better external carbon source; the unit cost of nitrogen removal COST=D / △TN, the index weight value q COST , The amount of chemical oxygen demand COD required for unit denitrification is set to Q, Q=△COD / △TN, the weight value of this index is q q Same as embodiment 2, no more details;

[0134] In addition, the denitrification rate DNR=△TN / mixed suspended solids concentration MLSS / reaction time, the reaction time is the total reacti...

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Abstract

The invention relates to a sewage treatment external carbon source screening device and a using method thereof. The sewage treatment external carbon source screening device is provided with a triangular flask, a bottle plug, an injector with a long needle head, a hose, a hard tube, a magnetic rotor, a magnetic stirrer and a beaker, wherein the bottle plug is arranged at an opening of the triangular flask; the bottle plug is provided with a needle head hole for the long needle head of the injector to penetrate through and a hard tube installation hole for the hard tube to penetrate through. theinjector is arranged on the needle head hole; the upper end of the hard tube is connected with the hose, and the lower end of the hard tube is positioned in the triangular flask; one end of the hoseis mounted at the upper end of the hard tube, and the other end of the hose is inserted into purified water in the beaker; the magnetic rotor is arranged at the bottom part in the triangular flask; and the triangular flask is arranged on the magnetic stirrer. The sewage treatment external carbon source screening device is suitable for screening external carbon sources for sewage treatment, and hasthe advantages of reasonable structural design and convenience in operation. The external carbon source performance evaluation method based on test data is established, the external carbon source with high cost performance can be efficiently selected, and the cost of the external carbon source is saved while the use requirement of a sewage treatment plant is met.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment external carbon source screening device and a method for using the same. Background technique [0002] As people's requirements for environmental quality continue to increase, the local government's requirements for emission standards have also increased accordingly, and more and more projects have been raised. For many sewage treatment plants with a low TN ratio of influent organic matter to total nitrogen, the addition of external carbon sources has become a key measure for the stability of effluent total nitrogen. If high-quality carbon sources are not selected scientifically, the cost of carbon sources is high, and often It will bring certain pressure on the operating cost of the sewage treatment plant. There are many kinds of carbon sources in the society, including multiple composite carbon sources. How to scientifically and rationally select ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N1/38
CPCG01N33/00G01N1/38G01N33/0091
Inventor 汪力王启镔高放史彦伟薛晓飞魏彬曹天宇张平曹之淇张建星王志强
Owner 北控水务(中国)投资有限公司
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