Total and Free Chlorine Residual Analyzers and Dechlorination Analyzers

Sacramento Regional Wastewater Treatment Plant Online Chlorination and Dechlorination Analyzers Performance Evaluation Report

PER04CL-006

This test reports presents results of three online total chlorine residual analyzers and two online dechlorination analyzers field-tested in a wastewater treatment plant environment over a period of three months utilizing amperometric and gas detection technologies supplied by three different manufacturers.  The Sacramento Regional County Sanitation District, Sacramento Regional Wastewater Treatment Plant, in Elk Grove, California, sponsored and conducted this test.  This report provides an overview of performance test procedures, outlines instrument specifications and includes test results for instrument calibration, loss of sample, response time, point drift and interference (for dechlorination). Instruments evaluated in this test report include:

Total Chlorine Residual Analyzers

Analytical Technology, Inc. (ATI) A15/79

Severn Trent Aztec CL 1000

Wallace & Tiernan Micro 2000

 

Dechlorination Analyzers

Analytical Technology, Inc. (ATI) A15/66

Wallace & Tiernan Deox 2000 

 

150 pages

18 MB

 
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Abstract
Executive Summary 





Residual Chlorine Analyzers for Water and Wastewater Treatment Applications Performance Evaluation Report

This test reports presents both bench and field-test results of 11 instruments from six manufacturers of online chlorine residual analyzer systems utilizing amperometric, colorimetric and polarographic technologies.  Both free and total chlorine analyzers for water and wastewater treatment applications were field-tested at a calibration range of 0-2 mg/L. 

 

Bench Tests

Bench tests were conducted in an environmentally controlled chamber in which one parameter at a time was changed to ascertain the individual effect and to evaluate accuracy related measurements and the effects of commonly encountered interferences.  Bench tests included warm-up effects; reagent addition; flow sensitivity; loss of sample; signal noise; calibration; drift; reproducibility; dead band; detection limit; response time; recovery time; ambient temperature effects; sample temperature effects and interference.

 

Field Tests

Field tests consisted of operating the free chlorine residual analyzers at an operating water treatment plant and the total residual chlorine analyzers at a wastewater treatment plant for a 45-day period. Laboratory conformance measurements were performed twice per day to compare with analyzer output to demonstrate the instrument's overall accuracy when subjected to many simultaneously changing parameters as experienced in real-time monitoring conditions.  Field test results can can provide information regarding instrument design, operation and maintenance requirements which influence the performance of the instruments in field applications.

Instruments evaluated in this test report include:

Free Chlorine Residual Analyzers

Delta (Rosemont Analytical) Free Chlorine Model 924

Enterra (Hach American Sigma) Free Chlorine Model 5150

Fischer & Porter Free Chlorine Model Anachlor II

Hach Free Chlorine Model CL-17

Wallace & Tiernan Free Chlorine Model Micro 2000

 

Total Chlorine Residual Analyzers

Delta (Rosemont Analytical) Total Chlorine Model 925 & PWC-92125

Enterra (Hach American Sigma) Total Chlorine Model 5151T

Fischer & Porter Total Chlorine Model Anachlor II

Hach Total Chlorine Model CL-17

Orion Total Chlorine Model 1770

Wallace & Tiernan Total Chlorine Model Micro 2000

 

227 pages

132 MB

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Total and Free Residual Chlorine Analyzers Online Maintenance Benchmarking Study

This maintenance study presents comprehensive maintenance information and benchmarking data reported by 135 surveyed water, wastewater and industrial treatment facilities.  This reports provides a history and background of chlorine residual analyzers and discusses the principles of how the different chlorine residual analyzer technologies function including amperometric titration, colorimetric and oxidation-reduction potential (ORP) probes.  This report provides the end-user with reported longevity of instrument's make and models in-use; installation, calibration and maintenance requirements; and reported performance, accuracy and maintenance costs.

83 pages

8.5 MB

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Purchase  - Immediate Download:

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More Links:

Chlorine Residual Analyzers

Dechlorination Analyzers

Residual Chlorine Test Report for Water and Wastewater Treatment Applications

Total and Free Chlorine Residual Analyzer Maintenance Study

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