what does orp mean
Update time: 23-03-13 Views: 944
what does orp mean
By Zhao from Onlyzone,a manufacturer of water treatment bio ceramic ball filter media in China.
The orp value (oxidation-reduction potential) is an important indicator of water quality. Although it cannot independently reflect the quality of the water, it can reflect the ecological environment in the aquarium system in combination with other water quality indicators.
What is the oxidation-reduction potential? In water, each substance has its own redox characteristics. Simply, we can understand that: on the microscopic level, each different substance has a certain oxidation-reduction ability, These substances with different oxidation-reduction properties can interact with each other, and finally constitute a certain macro-oxidation-reduction property. The so-called redox potential is used to reflect the macro-oxidation-reduction properties of all substances in the aqueous solution. The higher the oxidation-reduction potential, the more The stronger the potential, the lower the potential, and the weaker the oxidation. A positive potential means that the solution shows a certain oxidation, and a negative potential means that the solution shows a reduction.
Our filtration system, except for denitrification, is actually an oxidative biochemical filtration device. For organic matter, microorganisms break longer carbon chains (or open various carbon rings) through oxidation, and then pass through complex The biochemical process eventually oxidizes various forms of organic carbon into carbon dioxide; at the same time, these oxidations also break nitrogen, phosphorus, sulfur and other substances from the corresponding carbon bonds to form corresponding inorganic substances. For inorganic substances, Microbes oxidize low-valence inorganic substances into high-valence substances through oxidation. This is the essence of oxidative biochemical filtration (here we only care about those substances that are oxidized and decomposed by microorganisms, not those that are absorbed and assimilated by microorganisms) It can be seen that the substances in the water are continuously oxidized during the biochemical filtration. The process of biochemical oxidation is accompanied by the continuous generation of oxidation products, so from a macro point of view, the oxidation-reduction potential is continuously increased. Therefore, from this point of view Look, the higher the oxidation-reduction potential, the more thoroughly the pollutants in the water are filtered.
