Measurement tools like flow meters are essential to the water treatment process, which is a crucial step in ensuring both environmental sustainability and water quality. They support the monitoring and management of water quality, guaranteeing the safety and effectiveness of each step of the treatment process.
Categories of Water Treatment
- A domestic wastewater treatment plant is called a sewage treatment plant. Municipal wastewater or sewage are other names for domestic wastewater.
- Industrial wastewater treatment;
- Agricultural wastewater treatment;
- Leachate treatment plants;
Water Treatment Process
The process can be divided into primary treatment, secondary treatment, and tertiary treatment according to the degree of treatment.
These stages are:
1. Primary Treatment:
1.1. Screening: Removes large debris like leaves and trash.
1.2. Grit Removal: Eliminates sand, gravel, and other coarse particles.
1.3. Coagulation and Flocculation: Adds chemicals to form flocs, which are larger particles that settle more easily.
1.4. Sedimentation: Allows flocs to settle at the bottom for removal.
2. Secondary Treatment:
2.1. Biological Treatment: Uses microorganisms to break down organic matter. Common methods include activated sludge and trickling filters.
2.2. Aeration: Introduces air to promote microbial activity and oxidation of impurities.
3. Tertiary Treatment:
3.1. Filtration: Removes residual solids and microorganisms using sand filters, membranes, or carbon filters.
3.2. Disinfection: Eliminates pathogens through methods such as chlorination, UV radiation, or ozone treatment.
4. Advanced Treatment (if needed):
4.1. Reverse Osmosis: Removes dissolved salts and specific contaminants.
4.2. Ion Exchange: Targets specific ions like calcium, magnesium, or heavy metals.
What Comate flowmeters can help in the wastewater treatment
Aeration air: In the aeration tank of water treatment, precise control of the flow rate of air is crucial to the biochemical treatment effect of sewage!
- The Comate TGF460/TGF600 thermal gas mass flowmeter directly measures the mass flow of gas. It has high measurement accuracy and can accurately control the air supply in the aeration basin to ensure that microorganisms have enough oxygen for biochemical reactions and then to improve the efficiency and quality of sewage treatment.
- Industrial sensor by consistent heating current theory Free of zero-off problem and meant for long-term running purposes.
- Dust Resistance The air at the water treatment site may contain impurities such as dust and water vapor. Comate TGF460/TGF600 by an industrial sensor and well welded, it is designed for those harsh environment measurements.
- No pressure drop A considerable pressure drop from the flow meter will result in less efficient air delivery and higher energy consumption since the aeration system must feed a lot of air to the aeration basin.
- Easy install Process connection with ball valve and socket is very easy to install.
- Wide turndown ratio During the water treatment process, the required air flow range of the aeration tank may vary greatly under different operation stages and treatment processes. Comate TGF460/TGF600 thermal gas mass flowmeter with 1:100 meets the flow measurement needs under different working conditions.
- Fast response time
- No moving parts, very low maintenance cost
Biogas measurement: Biogas can be another by-product if the process uses anaerobic treatment.
Difficulties in biogas measurement:
- The composition of biogas often changes and it is easy to produce water condensation; the measuring equipment needs to be cleaned and maintained frequently
- Corrosiveness-Biogas contains H₂S and moisture.
- Impurities-Biogas may contain sticky impurities or particles, which can easily clog the measuring components and affect the measurement accuracy
- Low pressure: The pressure of biogas is generally low and the flow rate is not large;
Comate solutions
VFM60MV Multi-variable vortex flow meter:
- Build-in temperature & pressure compensation, measures standard flow of biogas;
- Based on vortex street theory, measurement results will not affected by changes in the medium composition.
- Measures down to 2 m/s, 1:30 ratio, and 1.0%RD high accuracy;
- Very low pressure drop;
- No moving parts;
TGF600 Thermal mass flowmeter
- 316ss material of the sensor and sensor was good to stand with the medium.
- 1:100 wide turndown ratio, down to 0.3Nm/s;
- Zero pressure drop;
- Easy installation;
- No moving parts;
Aerobic Aeration & Chlorine Measurement (advanced treatment)
TGF600 Thermal mass flowmeter