Products

Electricide Chlorine Dioxide Systems

CircleClear® Water Recovery Systems

Ozone Bottled Water Disinfection Systems

Fiberstrut Channel and Fasteners

ProMinent Chemical Dosing Equipment

Fristam Stainless Steel Hygenic Pumps

Atlantium HOD UV Disinfection

Glasco UV

LSM Pumps Hose Pumps

Likuid Nanotek Ceramic Membranes

IPM Systems Powder Feed Systems

Chemical Dosing Systems

Ozone Systems

Chlorine Dosing Systems

Sodium Hypochlorite Dosing Systems

Gas Chlorine Dosing Systems

Calcium Hypochlorite Dosing Systems

Chlorine Dioxide Dosing Systems

Electrochemical Generation Systems

Acid Chlorite Generation Systems

UV Disinfection Systems

Chemical Dosing Systems

Filtration Systems

Building Mount Dosing Systems

Skid Mount Dosing Systems

Fluoride Dosing Systems

Services

Chemical Dosing Systems ProMinent Ozone Chlorine Dioxide UV CircleClear Backwash Recovery Sodium Hypochlorite Aickinstrut Fiberstrut

us flag 

United States Office

aust flag 

Australia


United States

P: 702-938-6418  F: 702-938-4118  salesus@dioxide.com
Suite B-562 / 2654 W Horizon Ridge Pkwy
Henderson NV 89052-2803

Sydney (NSW)
P: +612 9999 4594  F: 02 9999 4534  sales@dioxide.com
Unit 9, 5-7 Prosperity Pde, Warriewood NSW 2102 Australia
Perth (WA)

P: +618 9337 5415  F: 02 9999 4534  saleswa@dioxide.com
Melbourne (Vic)

P: +613 9005 1681  F: 02 9999 4534  salesvic@dioxide.com

Home

Products

Chemical Dosing Systems

Applications

News

Services

Contact
Dioxide Pacific


Fluoride Dosing  Systems
Dioxide Pacific have many years experience in the design, manufacture, installation and commissioning of fluoride dosing systems for potable water. Fluoridation is typically accomplished with safe and accurate dosing of fluorosilicic acid, sodium fluoride or sodium silicofluoride. Fluorosilicic acid is a liquid and both sodium fluoride and sodium silicofluoride are powders.
 

Application: Fluorosilicic Acid (FSA) Storage & Dosing for Fluoridation of Potable Water in Southern Victoria. Dioxide Pacific is engaged to construct a fluorosilicic acid dosing system for a water authority in the south of Victoria. Water flow is 20ML/day. The system includes a 15kL bulk storage tank with tanker filling facilities, magnetic level indicator; day tank 250L with weigh cells and transfer pumps; duty and standby dosing pumps on an HDPE backboard; pre-CWS and post-CWS fluoride analysers and central PLC and HMI operated control system. Dioxide Pacific will supply, install and commission the plant. Please click on the picture to the right to view a 3D presentation of the plant via Youtube.

fluoride dosing system fluorosilicic acid fsa

Application: Fluorosilicic Acid (FSA) Storage & Dosing for Fluoridation of Potable Water
Dioxide Pacific was engaged by a Water Authority in Victoria to design, supply and install a fluorosilicic acid storage and dosing facility. This facility is designed to dose 0.8 - 1.0 ppm into a maximum flow of 110 ML/day. The plant installation is an upgrade of an old sodium silicofluoride dosing system which was past its useful life. It was determined that storage and handling of fluorosilicic acid represented a lower OH&S risk than sodium silicofluoride.

The existing sodium silicofluoride plant was installed in two dedicated plant rooms. The first room was for bulk storage of the powder and transfer via conveyor to the dosing room. The dosing room contained a screw feeder, hopper and solution tank where sodium silicofluoride is mixed with dilution water and transported to the dosing point. The powder plant was removed and the bulk storage room converted by installing a concrete storage bund in the floor of the room to house a bulk storage tank for fluorosilicic acid. The dosing room was gutted and upgraded for installation of the chemical dosing equipment for fluorosilicic acid (FSA).

Fluorosilicic acid storage consists of a 10,000L HDPE bulk storage tank with ultrasonic level sensor, point level sensors, 250L day tank with ultrasonic level sensor, point level sensors, weigh platform with load cells and transfer pump. The concrete bund area contains both the bulk and day tanks.

Chemical is supplied by bulk tanker. The tanker is parked in a purpose built concrete tanker unloading driveway. This driveway is designed to comply with EPA Vic Bunding Guidelines and to house a significant spill of chemical should this occur during transfer.

Chemical is transferred from the bulk storage tank to the day tank using a mag drive pump. Chemical dosing is with duty and standby ProMinent Delta dosing pumps. Dosing pumps, dosing pipework and valves are installed in an HDPE dosing cabinet in the dosing room. Concrete surfaces in the bund and unloading area are coated with a chemical resistant paint.

The fluorosilicic acid dosing system is operated from a central control panel which includes an Allen Bradley Control Logix PLC and PanelView Plus touchscreen. Modifications to the site Citect SCADA were made to include the fluoride FSA dosing plant. There are many safety features built into this plant to prevent under and overdosing of FSA including the monitoring of flow from the dosing pumps using a mag flow meter and comparison of actual flow with calculated flow. The system has been built virtually metal free. All fixings, pipe clamps and strut are Fiberstrut Vinylester which are fully chemical resistant.

Fluoridated water entering and leaving the clearwater storage is monitored continuously with on-line fluoride analysers. These fluoride analysers are used for alarm purposes to shut down fluoride dosing if overdosing occurs. Fluoride residual is controlled through flow pacing within tight concentration limits specified by DHS.

 

HDPE dosing board including ProMinent Delta dosing pumps, calibration cylinder, mag flow meter and dosing line. Fluoride pipework in schedule 80 grey UPVC.
Fluorosilicic Acid FSA Dosing System

Day tank with ultrasonic level sensor, fill, drain and overflow pipework, weigh platform and load cells.
Fluoride Dosing System Day Tank Fluorosilicic Acid

Tanker unloading driveway with fill point, display of bulk tank contents, hose reel and safety shower.
Fluoride Dosing System Tanker Unloading Driveway

Bulk storage room (LHS) and dosing room (RHS)
Bulk Storage Tank Fluoride Fluorosilicic Acid

Fluoride Dosing System Plant Room
Fluoride Fluorosilicic Acid Dosing Board ProMinent Delta Dosing Pumps
Fluoride Tanker Unloading Driveway
Fluorosilicic Acid Day Tank
Fluorosilicic Acid Bulk Storage Tank
Fluorosilicic Acid Fluoride Bulk Tank Water Trap
FSA Dosing System Plant Room
ProMinent Fluoride Analysers

Application: Fluorosilicic Acid (FSA) Storage & Dosing for Fluoridation of Potable Water. Water Authority Victoria
Dioxide Pacific was engaged by a Water Authority in Victoria to design, supply and install a fluorosilicic acid storage and dosing facility. This facility is designed to dose 0.8 - 1.0 ppm into a maximum flow of 509.2 L/s. This is a new installation and included construction of a colourbond plant room shed.

The new fluoride dosing plant room contains separate concrete bund areas for the 10,000L bulk storage tank and 250L day tank. Fluorosilicic acid storage consists of a 10,000L HDPE bulk storage tank with ultrasonic level sensor, point level sensor, 250L day tank with ultrasonic level sensor, point level sensors, weigh platform with load cells and transfer pump.

Bulk tanker deliveries are arranged to transport chemical to regional sites in Victoria. When the tanker arrives on site, it reverses into a purpose built concrete tanker unloading driveway which is below ground level at the lowest point. This driveway is designed to comply with EPA Vic Bunding Guidelines and to house a significant spill of chemical should this occur during transfer.

Chemical is transferred from the bulk storage tank to the day tank via a mag drive pump. Chemical dosing is with duty and standby ProMinent Delta dosing pumps. Dosing pumps, dosing pipework and valves are installed in an HDPE dosing cabinet mounted on the plant room wall and draining into the day tank bund. Concrete surfaces in the bund and unloading driveway are coated with a chemical resistant epoxy paint.

The fluorosilicic acid dosing system is operated from a central control panel which includes an Allen Bradley SLC 5/05 PLC. The fluoride dosing system includes many safety features and interlocks to prevent under and overdosing of FSA including the monitoring of flow from the dosing pumps using a mag flow meter and comparison of actual flow with calculated flow. As always, this system has been built virtually metal free. All fixings, pipe clamps and strut are Fiberstrut Vinylester which are fully chemical resistant.

Fluoridated water entering and leaving the clearwater storage is monitored continuously with on-line ProMinent Dulcometer fluoride analysers. These fluoride analysers are ion selective electrodes with high accuracy and reliability and do not require buffering with TISAB. The fluoride analysers are used for alarm purposes to shut down fluoride dosing if overdosing occurs. Fluoride residual is controlled through flow pacing within tight concentration limits specified by DHS.


For more information on fluoride dosing systems or to obtain a quotation, please complete the feedback form on our Contact page.

[Home] [Chemical Dosing Systems] [Products] [Services] [Contact  Dioxide Pacific]