Background: After the flood, significant changes occurred in water quality. At the physical level, a large amount of sediment, soil particles, and solid waste were swept into the water, resulting in a sharp increase in turbidity. The water became turbid, with reduced transparency, posing difficulties for water treatment. Meanwhile, due to the carried sediment, humus, etc., the water turned yellow, brown, or even black.
In terms of chemical properties, the flood scoured different soils and strata, dissolving acidic and alkaline substances into the water and changing its pH. It also carried heavy metals such as mercury and cadmium from the soil and industrial waste into the water. These heavy metals remain in the water for a long time and accumulate through the food chain, endangering the ecosystem and human health. In addition, the flood carried an increased amount of nutrients such as nitrogen and phosphorus, which easily led to water eutrophication. A large amount of organic matter entered the water, consuming dissolved oxygen during decomposition and producing toxic substances such as hydrogen sulfide, deteriorating the water quality.
Biologically, the flood damaged the protection facilities of water sources, allowing sewage to directly enter the water body, causing a sharp increase in the number of microorganisms such as bacteria and viruses. Moreover, it changed the aquatic ecosystem, leading to the death or migration of some aquatic organisms with high water – quality requirements, while some organisms adapted to harsh environments multiplied in large numbers, altering the structure of the biological community.
Requirement: Monitor water quality in real – time
Solution: The KACISE water quality sensor can monitor water quality changes in real – time, and keep real – time control over key indicators such as turbidity, pH, heavy metal content, and dissolved oxygen. It provides water quality dynamic data for relevant departments, helping to quickly determine whether the water turbidity and pH are normal, and laying the foundation for subsequent treatment.
Through continuous monitoring, once the water quality parameters reach dangerous thresholds, such as heavy metal content endangering human health or low dissolved oxygen threatening the survival of aquatic organisms, the water quality sensor can issue early warnings in a timely manner, prompting relevant personnel to take rapid response measures.
