Environmental Monitoring

The current situation regarding electroplating wastewater analysis presents challenges: the wastewater contains acids, alkalis, and heavy metals (such as Cr, Ni, and Cu), alongside persistent cyclic organic compounds derived from brightening agents, anti-misting additives, and degreasing solvents. This complex composition causes significant fluctuations in COD levels depending on the specific process stage and production shift. Sending samples to external laboratories results in a delay of several days—by which time the biological treatment tanks or coagulation systems may have already been operating improperly for too long. Utilizing a benchtop COD analyzer on-site reduces this turnaround time to just a few hours, provided the user fully understands the specific sources of error associated with electroplating wastewater

Wastewater treatment plants serving apartment complexes, buildings, and residential areas sometimes experience effluent COD levels approaching regulatory limits, particularly following sudden load surges or shortly before scheduled compliance sampling. QCVN 14:2025/BTNMT, applicable to domestic wastewater from September 1, 2025, sets COD limits based on discharge volume and the receiving water body, while allowing dischargers to choose between TOC and COD parameters

Rising pressure on urban clean water supplies, combined with the need for energy conservation, is compelling water treatment plants to comprehensively restructure their mechanical infrastructure. Operational models relying on manual experience can no longer meet the challenges of optimizing electricity costs and managing risks within pipeline networks

The phenomenon of microalgal blooms in surface water sources, aquaculture ponds, and industrial water supply systems is becoming a major challenge for operations and environmental control

Wastewater treatment plants use aerobic tanks to break down pollutants. Biological problems occur when the sludge turns black with surface foam, causing effluent water parameters to exceed permissible limits. Addressing this situation requires engineers to measure core environmental parameters instead of adding random probiotics

Ultrasonic measurement helps determine the remaining thickness of acrylic windows from one side, supporting wear monitoring and aircraft window refurbishment. An ultrasonic thickness gauge enables inspection without removing the window or requiring mechanical measurement from both sides. Measurements can be performed from one side of the surface when the probe is properly coupled to the material.

A terminal lug inside an electrical cabinet may gradually heat up—a change almost imperceptible to the naked eye. A motor bearing begins to rise in temperature even before any abnormal noise occurs. These changes often manifest quite early, yet maintenance teams typically only begin investigating the cause once the equipment shuts down or a circuit breaker trips

An air pressure meter provides reference data for calculation models involving altitude, airflow, air density, gas volume, and measurement uncertainty. Any variation in atmospheric pressure can propagate errors throughout an entire measurement or control system

Two barometers placed side by side can display different atmospheric pressure readings. Learn the technical reasons behind these differences and what they mean for measurement accuracy.

A barometric pressure meter (barometer) often detects changes in weather conditions before rainfall begins. As atmospheric pressure falls, the structure of the surrounding air mass is also changing. However, there is no fixed pressure threshold that guarantees rain will occur.