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Wastewater analysis in treatment plants

Wastewater analysis in treatment plants
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Wastewater analysis in treatment plants - 1

Wastewater analysis in treatment plants • Chemical oxygen demand (COD) by titration • Anions and cations by ion chromatograph

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Wastewater analysis in treatment plants - 2

Metrohm ... • is the global market leader in titration • offers a complete portfolio for NIR and Raman analysis, in addition to all of the methods of • ion analyses – titration, voltammetry, and ion chromatography • is a Swiss company and manufactures exclusively in Switzerland • grants a 3-year instrument warranty and a 10-year warranty on chemical suppressors for • anion chromatography • provides you with unparalleled application expertise • offers you more than 1800 applications free of charge • supports you with expert service through local representatives and regional support centers •...

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Wastewater analysis in treatment plants - 3

Professional support for wastewater analysis in treatment plants Operators of wastewater treatment plants are obliged to monitor their installation to control its performance. Part of this duty − depending on the size of the treatment plant − is regular determination of various parameters in the laboratory. Metrohm is able to support you with top-quality analytical instruments, extensive application know-how and first-class onsite service. If you have any analytical questions, our product specialists would be happy to assist you at any time. Selected standards from the field of treatment...

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Wastewater analysis in treatment plants - 4

Chemical oxygen demand according to DIN 38409-44 04 Definition The chemical oxygen demand (COD) is a measured value for the substances in a certain volume of water that can be oxidized by chromate. Significance in treatment plants In treatment plants the COD value is a valuable indicator for evaluating treatment performance. Here, with the COD balance, it is possible, amongst other things, to ass the oxygen demand in the aeration tank and to ess describe the sludge stabilization conditions. Automation solutions Manual determination of the COD value involves a great deal of work and,...

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Wastewater analysis in treatment plants - 5

Metrohm COD systems Metrohm offers different automation systems for COD determination according to the scale of testing. With these systems, the solutions needed for digestion (potassium dichromate and silver sulfate-sulfuric acid) can be added fully automatically − if need be, with cooling. The unpleasant handling of these aggressive and harmful solutions is reduced to a minimum, saving time and money. Following digestion, the samples are titrated fully automatically with the same system directly in the reaction vessels. At the end of each titration, the titrated sample is drawn off with...

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Wastewater analysis in treatment plants - 6

Simultaneous determination of anions and cations with 930 Compact IC Flex instruments in combination with a 858 Professional Sample Processor, optionally extendable, e.g., with Inline Dilution, Inline Ultrafiltration or Inline Dialysis.

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Wastewater analysis in treatment plants - 7

Anions and cations by means of ion chromatography The intelligent chromatography software MagIC Net then takes charge of instrument control, data management, and system monitoring. If need be, the system can also be configured as «one-button IC» for personnel from other areas of work. The spurious particles, colloids, algae, or bacteria present in many wastewater samples are removed fully automa tically by, for example, Inline Ultrafiltration or Inline Dialysis before analysis. The 930 Compact IC Flex, in combination with the 858 Professional Sample Processor, allows for this....

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