案例分析
The problem This particular MOD site near Winchester in the south
of England suffered heavy lime scale problems for many years.
Different water treatment systems were installed and tested trying
to reduce the problems with hard scale as the Plate Heat Exchangers had to be serviced
and descaled regularly on a 6 months basis.
Shower heads also caused a severe problem and
were in constant need for non aggressive water to function properly as they needed constant descaling every 3
科學驗證
Principle of operation and specific characteristics
Active anode system
The active anode system investigated (AQUABION® AB-S15, manufactured and developed
by ION Germany GmbH), based on the assumption, that the addition of zinc ions (Zn2+ ions)
retards or totally prevents the formation of scale (calcium carbonate, CaCO3 and magnesium
carbonate, MgCO3), which is difficult to dissolve. This assumption has been confirmed in a
study conducted by the Institute of Chemistry and Bio-chemistry of the Rand Afrikaans
University, Johannesburg.[4]
An article in the technical magazine, “Journal of Crystal Growth“, reports a similar finding.[5]
The electro—galvanic principle is used in active anode systems. As a result of the conductive
connection of the brass housing with the zinc sacrificial anode using potential equalisation, a
galvanic element is formed together with the flowing water having a cell voltage of about 0.7
to 1.0 volt, which depends on the property of the water. There are substances causing
turbulence made of Nirosta (rust-proof steel) either upstream or downstream, which stir up
the suspended matter in the water. With this the contact surface obtained is as large as
possible, which has a positive effect on the handling effect. In addition, the substances
causing turbulence ensure that the zinc sacrificial anode does not get clogged
安裝說明 (下載)