COD, BOD, and TSS are important water quality parameters for wastewater treatment operations. The online COD BOD TSS Sensor Analyzer can be used to detect the Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), and Total Suspended Solids (TSS) values of water quality.

The DS500 series Online COD BOD TSS Sensor Analyzer is a new generation of environmental protection-type sensors launched by OPS. It is based on the UV absorption principle, reagent-free, pollution-free, more economical, and environmentally friendly. Small size, more convenient installation, and online continuous water quality monitoring. Automatic compensation for turbidity interference, automatic cleaning devices, and even long-term monitoring still have excellent stability. It can be used in harsh environments, and the monitoring data is stable and reliable. Multiple path length options are available to ensure our clients have the detection range that meets their wastewater monitoring demands.

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Online COD BOD TSS Sensor Analyzer Principle

Many organic substances dissolved in water absorb ultraviolet light. Therefore, the total amount of organic pollutants in water can be measured by measuring the absorption of these organic substances by ultraviolet light at a wavelength of 254 nm. DS500 series sensors use two light sources, one 254nm ultraviolet light and one 850nm infrared light, which can automatically compensate for the optical path attenuation and turbidity effects, thus achieving more stable and reliable measurement values. The sensors measure organics in a multi-dimensional way that results in improved correlations to water quality parameters such as BOD, COD, and TSS.

Features of DS500 series Online COD BOD TSS Sensor Analyzer

-Digital sensors, RS-485 output, Modbus protocol;

-With automatic cleaning function and few maintenance;

-No chemical reagents, no secondary pollution;

-Direct immersion COD measurement without sampling;

-Quick response time and precision for COD continuous measurement;

-Real-time data transmission allows you to get timely and accurate data on monitoring water;

-Corrosion-resistant shell, easy to install;

-Proven UVC LED technology, long lifetime, stable and instant measurement;

-Measurement of parameters such as COD, TOC, TSS, and temperature;

-Adopts low power consumption design and has the characteristics of anti-interference performance;

-Automatic compensation for turbidity interference for excellent test performance.

Technology Parameter

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Application Areas of Online COD BOD TSS Sensor Analyzer

-Surface Water Pollution Detection and Monitoring

-Urban Well Monitoring

-River & lake Water Quality Monitoring

-Sewage Treatment Plant Water Quality Monitoring

-Fishery Water Quality Pollution Monitoring

-Fish farming, aquaculture

-Swimming Pool Water Quality Monitoring

-Industrial and Mining Enterprises, Detection of Urban Sewage Discharge

-Water quality monitoring of petrochemical, chemical, power generation, pharmaceutical, food, electronic, water plant, etc

-Water quality inspection of urban parks

-Smart city water quality detection

-Urban wastewater treatment: detecting organic load variations during input/ treatment process/ output.

-Treatment of industrial effluents

-Drinking water: monitoring Organic matter in raw water, oxidation process, coagulation, activated carbon filtration.

OPS COD Sensors Use sites

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FAQs about Online COD BOD TSS Sensor Analyzer

1. What is COD, BOD, and TSS?

COD, BOD, and TSS are commonly used terms in environmental science and wastewater treatment.

COD: Chemical Oxygen Demand

COD measures the amount of oxygen required to chemically oxidize organic and inorganic matter in water. It is a measure of the pollution load, particularly the amount of organic pollutants, in water. COD is often used as an indicator of water quality and pollution levels in industrial and municipal wastewater.

BOD: Biochemical Oxygen Demand

BOD refers to the amount of dissolved oxygen consumed by microorganisms while decomposing organic matter in water. It indicates the level of organic pollution in water and the amount of oxygen needed for aerobic biological processes to break down organic pollutants. BOD is a key parameter in assessing the effectiveness of wastewater treatment processes and the overall health of aquatic ecosystems.

TSS: Total Suspended Solids

TSS represents the concentration of solid particles suspended in water, including organic and inorganic matter. These particles can include silt, sediment, organic debris, and other materials that are not dissolved in the water. It is an important parameter in assessing water clarity, sedimentation, and overall water quality, particularly in evaluating the effectiveness of sediment control measures and wastewater treatment processes.

2. Why Measure Chemical Oxygen Demand (COD)?

(1) Assessing Water Quality: COD measurement provides valuable information about the organic pollution level in water bodies. High COD levels indicate the presence of organic contaminants, which can adversely affect aquatic ecosystems and human health if not properly treated.

(2) Monitoring Wastewater Treatment Efficiency: In industrial and municipal wastewater treatment plants, measuring COD helps operators assess the efficiency of treatment processes. By monitoring COD levels in influent and effluent wastewater, operators can determine how effectively organic pollutants are being removed during treatment.

(3) Compliance with Regulations: Many environmental regulations set limits on the allowable COD levels in wastewater discharges. Industries and municipalities must comply with these regulations to avoid fines and penalties. Regular COD monitoring ensures compliance with regulatory requirements.

(4) Optimizing Treatment Processes: COD data allows wastewater treatment plant operators to optimize treatment processes for maximum efficiency. By tracking COD levels and adjusting treatment parameters accordingly, operators can improve the removal of organic pollutants and minimize environmental impact.

(5) Predicting Oxygen Depletion: High COD levels in water bodies can lead to oxygen depletion as microorganisms decompose organic matter, leading to conditions such as hypoxia or anoxia, which can harm aquatic life. Measuring COD helps predict and prevent such oxygen depletion events.

(6) Research and Development: COD measurement is also valuable in research and development efforts aimed at developing more efficient and sustainable wastewater treatment technologies. Researchers use COD data to evaluate the performance of new treatment methods and technologies.

3. What Processes Require Chemical Oxygen Demand (COD) Monitoring?

-Municipal and industrial wastewater treatment

-Primary Treatment.

-Secondary Treatment.

-Discharge limits.

-Continuous monitoring of organic matter load in the sewage treatment process.

-On-line real-time monitoring of influent and outflow water of the wastewater treatment.

4. Why is COD an Important Water Quality Parameter?

COD is an important water quality parameter and is used in a wide range of applications, including:

1, To confirm wastewater discharge and the waste treatment procedure meets criteria set by regulators;

2, To quantify the biodegradable fraction of wastewater effluent – ratio between BOD and COD;

3, COD or BOD measurements are also used as an indicator of the size of a wastewater treatment plant required for a specific location.

5. What to Consider When Selecting a Method to Analyze Oxygen Demand?

-Specific test application

-The oxidant to be used

-Time to completion

-Accuracy and precision of the measurement

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