On-site Analytical
Services

ZI-CHEM capabilities include the provision of a wide range of on-site analytical services for water-using systems. This data is provided to customers by frequent and regular reporting methods including trending with commentary. It is also used to make critical adjustments, in order to manage water chemistry within prescribed operating ranges that are acceptable for the effective management of water treatment objectives.

Range of sample collection and analyses:

• Surface water
• Deep well waters
• Clarifier overflow and underflow
• Softened water
• Demineralizer product water
• Reverse Osmosis feed, permeate, recycle, brine
• Boiler feedwater
• Boiler water
• Saturated steam
• Condensate return
• Cooling tower makeup
• Cooling water supply and return waters
• Closed cooling water circuits

Analytical methods employed:

• Electronic meter including pH, conductivity, ORP, linear polarization
• Wet analysis titration for anionic compounds including hardness (total, calcium, magnesium), alkalinity (total, OH), sulfite, chloride
• Spectrophotometric analyses for iron, silica, phosphate, phosphorus, zinc, molybdate, sulfate, DEHA, hydroquinone, hydrazine, amine
• Microbiological including plate count, displide, ATP, slime adhesion, SRB
• Clarification including suspended solids, turbidity, color