Environmental Hygiene Services
Contact Information
Global Nalco LocationsLocal Sales Offices
Energy Services Contacts
Asia Pacific Regional Support Centers
2 International Business Park #02-20
The Strategy Tower 2
Singapore 609930
Tel: +65 6505 6868
Fax: +65 6316 1172
18 Waterfront Pl.,
168 Daduhe Rd.
Shanghai 200062, PRC
Tel: +86-21-6183-2500
Fax: +86-21-6183-2400
Envirox® Chlorine Dioxide Systems
Advances in chlorine dioxide systems technology have driven rapid expansion in the number of applications using ClO2 successfully.
Nalco Environmental Hygiene Services has been successfully selling Envirox ClO2 systems for several years, with more than 500 installations throughout Europe and the United States in hospitals, bottled water plants, breweries and manufacturing plants.
This program is now available for the Asia-Pacific region. Envirox uses a patented electrochemical generation process that uses a single precursor (sodium chlorite). Envirox systems have no acid on site, which in Institutional sites is a safety advantage. Envirox units are limited to 5.5#/day of ClO2 output.
Nalco has recently expanded the product line with our Accucide line of chlorine dioxide generators. These units can deliver up to 50#/day of ClO2. Accucide units can be potable or permanently installed and come in 5, 10, 25 and 50# output versions. Accudice units also use a patented generation process using a consumable catalyst column.
Other Envirox ClO2 applications include:
1. Thermal storage loops, or any closed loop requiring bio control.
Our consultants recommend ClO2 as the best available technology for bio control in large closed loops.
2. Food plant opportunities, including:
- Flume water
- Poultry carcass chiller tanks
- CIP applications
- Breweries
- Pasteurizers
- Bottle fillers
- Conveyor rinse
- Mash coolers (ethanol plants)
3. Manufacturing opportunities
- Ammonia (NH3) destruction in process or cooling water
- Lubricating oils reservoirs where microbioial control is a problem
- Any place where conventional biocides are not working
For more information, contact us.

