Application Examples of Raw in As an Online Of
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An Element for Your Success Unabhängige,Independent consultantsberatende and und planning planende engineers Ingenieure for water, waste water, solid waste and environmental für Wasser-, Abwassertechnologies-, Abfall- und Umwelttechnik Hannover ∙ Hannover Erfurt ∙ Oldenburg Examples of Application Of Online Measurements (COD, TOC, TN) In Raw Waste Water from Sewage Treatment Plants As an Additional Control Parameter For Plant Operation aqua consult 1. Introduction Hannover ∙ Hannover Erfurt ∙ Oldenburg Bremen Online- Measurement Erfurt Online measurements in sewage treatment plant inlet as additional control element Measuring, control and regulating technology installed in the sewage treatment plants is primarily designed to ensure optimized processes and process flows. Control and control functions work within the sewage system. The conventionally installed EMSR techniques do not provide protection against load overloads in the plant inlet. Risk of an overload with possible effects on the discharge concentrations into the receiving water body is not obvious. 1. Introduction Hannover ∙ Hannover Erfurt ∙ Oldenburg Bremen Online- Measurement Erfurt Where is the hidden risk? • Sewage treatment plants with a smaller degree of connection (Design capacity) and selective industrial discharge • Sewage treatment plants with a higher degree of connection (Design capacity) and high industrial discharge • Industries- / Industrial wastewater treatment plants 1. Introduction Hannover ∙ Hannover Erfurt ∙ Oldenburg Bremen Online-Measurement Erfurt Presentation Content • Which parameters are suitable for a identifying a hazard to a plant - Requirements for measuring technology - Requirements for information • Installation examples Example 1: Measurement of COD and TNb for regulating the discharge load of an industrial discharger to a municipal sewage treatment plant Example 2: Measurement of COD / TNb / TP in the inlet of a plant treatment plant Example 3: Measurement of TOC in the outlet Hannover ∙ Hannover Erfurt ∙ Oldenburg 3. Requirements for measurement technologies Bremen Erfurt Online Measurement in Wastewater Discharge from Production Hannover ∙ Hannover Erfurt ∙ Oldenburg 3. Requirements for measurement technolgies Bremen Factors for measuring technology Erfurt . Operability . Robustness - Industry application . Operating time- calibration . Simplicity – without the need to train staff . Operation Costs . Maintenance costs . Chemical demands . Remote maintenance . Measurement signal availability . Continuous / semi-continuous Hannover ∙ Hannover Erfurt ∙ Oldenburg 3. Requirements for measurement technolgies Bremen Measuring technique Erfurt . Approved measurement technologies according to the general criteria: . Temperature measurement . pH . Conductivity . Oxygen contents . Ammonical nitrogen (ISE) . Redox potential . Additional approved measuring technologies with higher investment costs . PO4-P- Measurement . NO3-N – Measurement . NH4-N - Measurement . TS - Measurement Hannover ∙ Hannover Erfurt ∙ Oldenburg 3. Requirements for measurement technolgies Bremen Measuring technique Erfurt Shortcomings . Existance of a proven measuring technique for determination of the inlet state. Illustration of only specific operating situations . Changes in the composition of a company's wastewater can not be adequately depicted . Complexity in evaluation of several required parameters . Determination of COD concentration / load during the production process is not possible . Knowledge of the COD load from production for the benchmark, AUDIT and Indirect dischargers contracts. Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Application Examples Example 1 COD und TNb - Controlling the Inlet Loads Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Anwendungsbeispiele Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt . Site Characterization . Companies in the food industry . ca. 25% - 30% share in the municipal sewage treatment plant . Chemical/Physical pretreatment with storage tank . Aims . Monitoring compliance with the waste water discharge contract Payment for wastewater disposal . Restriction of the wastewater load by the indirect discharger Wastewater treatment plant overloading avoidance Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads . Discharge Limits . Wastewater amount . pH value . Temperature . Carbon load (COD) . Nitrogen load (TNb) . Measuring techniques . MID (E+H) . pH – value (…) . Temperature (…) . Carbon (COD –Measurement Fa. LAR) . Nitrogen (TNb – Measurement Fa. LAR) Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt Wastewater pretreatment plant Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads Chemical/Physical pretreatment Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads Polymerisation /Sludge dewatering Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads Mixing and Equalization Tank Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt LAR Discharge into the munipical wastewater treatment plant Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads Measuring schaft with control valve Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt Measuring schaft with control valve Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads LAR device installation location Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt LAR device installation Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt Plant flow chart Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example1- COD und TNb - Controlling the Inlet Loads PLS – COD Load [kg COD/h] Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example1- COD und TNb - Controlling the Inlet Loads Erfurt PLS – TN load [kg N/h] Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Application Examples Example 2 CSB,TNb, TP - Nutrient Dosing Control Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example 2- CSB,TNb, TP - Nutrient Dosing Control Erfurt . Site Characterization . Companies in the food industry . Direct dischargers . Anaerobic/aerobic wastewater treatment . Aims . Monitoring the discharge resulted from production Wastewater treatment plant overloading avoidance . Automation of oxygen, Urea, and phosporic acid dosing Aerobic stage overloading avoidance Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example 2- CSB,TNb, TP - Nutrient Dosing Control Erfurt . Measurement at measuring point 2 (MAB) . pH – value . Volume . COD, TNb,TP - Measurement . Measurement Targets . Inlet load balance for the anaerobic stage . Acidification control(pH-value) . Automation of the nutrient dosing . Urea . Phosporic Acid Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example 2- CSB,TNb, TP - Nutrient Dosing Control Erfurt . Measurement at measuring point 1 (production discharge) . pH - value . COD, TNb, TP - measurement . Measurement Targets . Continuous documentation of volume, pH – value, TOC . Production loss analysis . Sending signals during production for defined operational conditions (volume, TOC, pH-value – balance) . Protection of the wastewater treatment plant from overloading (Control of the emergency tank) Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example 2- CSB,TNb, TP - Nutrient Dosing Control Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example 2- CSB,TNb, TP - Nutrient Dosing Control Anaerobic system BiologicalBiologie Stage Secondary Clarifier Pre-acidification Excess Sludge reservoir Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example 2- CSB,TNb, TP - Nutrient Dosing Control Erfurt Measuring technology Equalization tank Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Example 2- CSB,TNb, TP - Nutrient Dosing Control Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Eamples Bremen Example 2- CSB,TNb, TP - Nutrient Dosing Control Erfurt Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Example 2- CSB,TNb, TP - Nutrient Dosing Control Erfurt Hannover ∙ Hannover Erfurt ∙ Oldenburg 4. Application Examples Bremen Erfurt Application Examples Example 3 TOC – Regulation of the emergency protection tank Hannover ∙ Hannover Erfurt ∙ Oldenburg 3. Application Examples Bremen Erfurt Example 3-TOC in output . Site Characterization . Companies in the food industry . High volume and und production range growth . 3 production zones in the same location . Targets . Product loss detection „Retroactive effect“ for the Production process . Detection of overloading situations in wastewater treatment plant „Retrospective“ for the wastewater treatment