PT Ecological Services Private Limited

The OPM Dissolved Oxygen Probe uses optical technology (EPA-approved RDO technology for Clean Water Act programs) to measure dissolved oxygen and temperature. It is useful for various types of water monitoring, helping to monitor oxygen levels in influent, effluent, and treatment processes. The probe responds quickly to changes in oxygen and temperature, providing more accurate results.

• Accurate and high-resolution real-time measurements
• Easy to integrate with a plug-and-play design
• Built-in digital display for real-time monitoring and data logging for advanced analysis
• Low maintenance operation
• Built-in sensor diagnostics with two-way communication for performance tracking
• Reliable and robust, even in changing process conditions
• Easy and user-friendly calibration.

Easy Setup and Monitoring: Flexible communication protocols connect to your existing OPRUSS OPM controllers.

Accurate and Reliable Data: The most accurate DO probe on the market, with a precision of up to ±0.1 mg/L. It resists wear and tear and light damage, and features automatic calibration to prevent long-term drift.

Easy Maintenance: The smart sensor cap keeps important information and alerts you when it’s time for a replacement.

Applications:

• Sewage Treatment Plant
  
  
• Effluent Treatment Plant
  
  
• Water Treatment Plant
  
  
• Monitoring Lakes, Ponds, and Rivers

pH is a measure of the acidity or alkalinity of a fluid. The pH of any fluid is the measure of its hydrogen ion (H⁺) concentration relative to that of a given standard solution. The pH may range from 0 to 14, where 0 is most acid, 14 most basic, and 7 is neutral.

pH stands for the “power of hydrogen”. The numerical value of pH is determined by the molar concentration of hydrogen ions (H+). This is done by taking the negative logarithm of the H+ concentration (-log(H+)). For example, if a solution has a H+ concentration of 10^-3 M, the pH of the solution will be -log(10^-3), which equals 3.

Acids and Bases

Acids and bases can cancel each other out because an acid releases a hydrogen ion or proton (equivalent to H+) and a base accepts a hydrogen ion or proton. In other words, an acid is a substance that will decrease pH when added to pure water. In the same manner, a base is a substance that will increase the pH of water. To further define these substances, Arrhenius determined in 1884 that an acid will release a hydrogen ion (H+) as it dissolves in water, and a base will release a hydroxyl ion (OH-) in water.

Factors affecting pH of water

There are many factors that can affect pH in water, both natural and man-made.

1. Pollution

Anthropogenic causes of pH fluctuations are usually related to pollution. Acid rain is one of the best known examples of human influence on the pH of water. Any form of precipitation with a pH level less than 5.0 is known as acid rain. This precipitation comes from the reaction of water with nitrogen oxides, sulfur oxides and other acidic compounds, lowering its already slightly acidic pH. These emissions usually come from mining and smelting operations or fossil fuel combustion (coal burning and automobiles). Extremely high levels of CO2 can also further decrease the pH of rain.

Point source pollution is a common cause that can increase or decrease pH depending on the chemicals involved. These chemicals can come from agricultural runoff, wastewater discharge or industrial runoff. Mining operations especially coal produce acid runoff and acidic groundwater seepage if the surrounding soil is poorly buffered. Wastewater discharge that contains detergents and soap-based products can cause a water source to become too basic.

2. Carbonates

Carbonate materials and limestone are two elements that can cause pH changes in water. Calcium carbonate (CaCO3) and other bicarbonates can combine with both hydrogen and hydroxyl ions to neutralize pH. When carbonate minerals are present in the soil, the buffering capacity of water is increased, keeping the pH of water close to neutral even when acids or bases are added. Additional carbonate materials beyond this can make neutral water slightly basic. The pH of rain can also be lowered due to volcanic ash, sulfate-reducing bacteria in wetlands, airborne particulates from wildfires and even lightning. If rain falls on a poorly buffered water source, it can decrease the pH of nearby water through runoff.

3. Carbon dioxide

Carbon dioxide is the most common cause of acidity in water. Photosynthesis, respiration and decomposition all contribute to pH fluctuations due to their influences on CO2 levels. Carbon dioxide exists in water in a dissolved state just like oxygen; it can also react with water to form carbonic acid.

pH Limits

According to the Central Ground Water Board, BIS (IS_10500 and revised module IS 10500:2012) has specifications in Uniform Drinking Water Quality Monitoring Protocol. The acceptable limit for pH is from 6.5 to 8.5.

Widely used in water and sewage treatment plants, hydroponics, and aquaculture systems, turbidity measurements help monitor the level of suspended particles visible in light. Water turbidity values are important for measuring the amount of solids and color in water. Accurate measurements are crucial for checking water quality in industrial processes, treatment plants, and aquaculture. If turbidity levels change from what is expected, it can indicate changes in water quality.

OPM TURB uses advanced fiber optic technology to measure turbidity accurately. Light from the emitter enters the water sample and scatters off particles in a specific wavelength range of 720 nm to 860 nm. The scattered light, which moves at a 90-degree angle, enters the detector. This method follows the nephelometric approach, and turbidity values are expressed in nephelometric turbidity units (NTUs) according to the ISO 7027 standard.

• High-Precision Measurement: Utilizes colorimetric or photometric technology for reliable detection of total phosphate levels across a wide concentration range.

• Real-Time Monitoring: Continuous online measurement ensures immediate visibility of process fluctuations and discharge quality.

• Automatic Sampling & Reagent Handling: Fully automated operation reduces manual intervention and improves consistency.

• Robust Industrial Design: Built with corrosion-resistant components for harsh environments like STPs, ETPs, and industrial water systems.

• Low Maintenance System: Long-lasting reagents, automated cleaning cycles, and minimal consumable requirements.

• User-Friendly Interface: Touchscreen display, easy calibration, and remote monitoring options via Modbus/RS485/4-20mA.

• Regulatory Compliance: Supports adherence to pollution control norms and environmental standards by providing reliable phosphate data.

• Sewage Treatment Plants (STPs)

• Effluent Treatment Plants (ETPs)

• Industrial Water & Wastewater Monitoring

• Drinking Water Treatment Facilities

• Rivers, Lakes & Environmental Monitoring

• Fertilizer, Chemical, Power & Process Industries

Analyzer equipment plays a critical role in the operation of a Sewage Treatment Plant (STP) by helping monitor water quality, track treatment efficiency, and ensure that the treated water meets regulatory standards before being discharged into the environment or reused. These devices analyze various parameters like pH, turbidity, chemical oxygen demand (COD), biochemical oxygen demand (BOD), and others.

Accurate measurement of fluoride has become increasingly important due to the growing practice of adding fluoride to water supplies as a public health measure.. The sensor allows for easy real-time monitoring and features built-in error compensation to improve accuracy. Additionally, an accessory is available to help clean the sensor’s aperture remotely, ensuring maintenance-free performance.

Chloride inorganic ions are commonly found in disinfectants. This makes it important to measure them in various areas, especially in applications sensitive to corrosion, as well as in wastewater and drinking water. T This sensor allows for real-time measurements and has built-in temperature compensation features. An additional accessory can clean the sensor aperture remotely, ensuring a longer lifespan and precise operation.

The OPM Series Smart Controller 2600VTI is a robust touchscreen display unit designed for industrial applications.

Key features include:
● Design: Strong and modern with flat glass from edge to edge.
● Protection: Waterproof and dustproof, following IP65 standards, with a special rubber seal.
● Durability: Back made of durable aluminium with bolts for VESA-75/100 mounting.
● Connectivity: Multiple connectors, including serial ports and USB 3.0.
● Display Quality: Anti-glare surface, specially treated, with no small pixel issues

The OPM Series Smart Controller 2600VTI is a robust touchscreen display unit designed for industrial applications.

Key features include:
● Design: Strong and modern with flat glass from edge to edge.
● Protection: Waterproof and dustproof, following IP65 standards, with a special rubber seal.
● Durability: Back made of durable aluminium with bolts for VESA-75/100 mounting.
● Connectivity: Multiple connectors, including serial ports and USB 3.0.
● Display Quality: Anti-glare surface, specially treated, with no small pixel issues

An Oxygen Analyzer is a device used to measure the concentration of oxygen (O₂) in a gas mixture. These analyzers are critical in many industrial, medical, and scientific applications, as oxygen levels play a vital role in processes like combustion, respiration, and chemical reactions.