Silica comes in two forms, non reactive (colliodal) and reactive which has a small charge. Most waters contain a mixture of the two forms, usually reactive silica has the higher concentration. Any coagulant, such as PAC, used to form a floc followed by a clarifier or filter will remove much of...
I have a question on this topic that I hope somebody can answer.
In some UK power stations it is common practice to shut down sea water electrochlorination plants in mid winter when the sea water temperature is less than ~ 9 deg.C. The reason given is that in their experiance bio growth is low...
An alternative to the ASME standard are the VGB standards and guidelines produced by VGB PowerTech e.V. These are a European standard. See www.vgb-power.de or www.vgb.org for more information.