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Method for detecting sludge cell wall breakage

A sludge and cell technology, applied in the direction of weighing by removing certain components, material analysis by observing the impact on chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problem of no sludge cell breakdown. The method of wall detection, complexity, unfavorable engineering application and other issues

Active Publication Date: 2013-04-03
BEIJING DRAINAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have their own advantages and disadvantages. Some methods are complex, require high equipment, and high testing costs; some methods are very time-consuming, have poor reliability, and have no obvious indicative effect, which is not conducive to guiding engineering applications.
In particular, there is no method specifically suitable for the detection of cell wall breakage in sludge

Method used

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  • Method for detecting sludge cell wall breakage
  • Method for detecting sludge cell wall breakage
  • Method for detecting sludge cell wall breakage

Examples

Experimental program
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Effect test

Embodiment Construction

[0076] 1. Measure the original TCOD

[0077] Take 1.00ml of the remaining sludge as it is, dilute 20 times with distilled water, put it in a 500mL conical flask, add 10ml of potassium dichromate to it, add water to dilute to 110mL±1, and slowly add 30mL of concentrated sulfuric acid, shake well, Heat to reflux in a strong acidic medium for 2 hours; after cooling, rinse the wall of the condenser tube with 90.00ml of water, remove the Erlenmeyer flask; then add 3 drops of test ferrousin indicator solution (about 0.14-0.16mL) mol / L ammonium ferrous sulfate standard solution titration, the color of the solution is from yellow to blue-green to reddish brown as the end point, record the amount of ammonium ferrous sulfate standard solution V 1 = 16ml; take 20.00mL of distilled water, and do a blank experiment according to the same procedure. Record the consumption V of ferrous ammonium sulfate standard solution when titrating the blank 0 = 45ml.

[0078] Calculation of TCOD of raw...

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Abstract

The invention relates to a sewage treatment technique, in particular to a method for detecting sludge cell wall breaking rate in a sludge treatment process. The method comprises the steps of performing COD measurement and VSS measurement on sludge before and after sludge cell wall breaking treatment, wherein the COD measurement comprises TCOD, SCOD1 and SCOD0; and the VSS measurement comprises VSS1 and VSS0. Compared with the prior art, the detection method has the advantages of simpleness, practicability, low cost and high reliability in testing results.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a method for detecting the wall breaking rate of sludge cells in the sludge treatment process, which is applied to the detection and research of the wall breaking of sludge cells. [0002] The term COD in this specification is chemical oxygen demand; [0003] TCOD is the COD value in the untreated sludge mixture; [0004] SCOD 1 That is, the dissolved COD in the sludge supernatant after treatment; [0005] SCOD 0 That is, the dissolved COD in the untreated sludge supernatant; [0006] VSS is the determination of volatile solids in sludge; [0007] VSS 0 That is, untreated sludge mixed solution VSS; [0008] VSS 1 That is, the VSS in the treated sludge. Background technique [0009] Sewage treatment plants will produce biological sludge, and mechanical dehydration is used to treat sludge in the plant. In order to lower the moisture content of the dehydrated cake, it is nec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/79G01N5/04
Inventor 梁远张辉卢长松胡俊甘一萍
Owner BEIJING DRAINAGE GRP CO LTD