Simple measurement of water quality
Turbidity analysers are commonly utilised in water treatment or purification plant and in some cases, it is being employed in indicating matter suspended at wastewater besides detecting turbidity of chemical processes. High turbidity might cause the growth of different vegetation in water. Turbidity can be translated as the measurement of water relative clarity. It does not directly measure the suspended sediments e.g. silt, soil, organic matter and clay but rather measure the dissipation and attenuation effects when light penetrates through water.
The turbidity analyser can be applied in disturbed sites where water supply quality is always affected such as storage tanks, sewage, sumps, hydropower generating streams and so forth because the water source might subject to contaminants like heavy metals as well as phosphorus. Hence, the turbidity value will be high if the intensity of dispersed light is high. In layman’s term, we can conclude the water is murky or cloudy in this case. The water quality is indicated by the suspended solids and therefore the changes of turbidity often reflects the transitional changes of environmental conditions. When it comes to continuously monitor water constituents, a company is often constrained by technical or financial support.
Galvanic Monitek turbidity analyser can be applied efficaciously as it takes measurement on a continuous basis and correlates with suspended sediments. The analyser is also highly reliable as it eliminates the measurement errors caused by unexpected turbidity spikes via its Forward-Scatter & Side-Scatter analysing method.
The importance of monitoring turbidity is not limited to compliance of Water Standard Quality (Class I water should have 5 NTU and below for Malaysia) but also it will affect the aquatic life when the water is released into rivers/oceans. Since sunlight could not reach the aquatic plants when suspended sediments are in high level, this will reduce photosynthesis rate and causes level of dissolved oxygen to reduce, which might lead to deaths of aquatic habitants. Same as any other water measuring parameter, having a continuous long-term turbidity monitoring such as the Galvanic Monitek turbidity analyser can be customised of its construction material to suit the different operating conditions of customers. An increase in turbidity for distribution systems suggests detachments of biofilms whereas in filtered water, this suggests poor elimination of pathogen. To conclude, a reliable turbidity analyser is relevant as it can bring indications of coagulation, clarification and disinfection system performances in a plant.