DiKlor™ - Sodium Chlorite Solution

BACKGROUND

Hydrogen sulfide is a common problem in municipal wastewater collection systems, sludge belt presses, and many other industrial applications. There are many reasons to control the formation of H2S: the safety of operations and maintenance personnel; the prevention of the deterioration of the collection system; the elimination of odors that result in complaints from nearby residents and businesses.

What is DiKlor™ Sulfide Scavenger

DiKlor™ is a 25% sodium chlorite solution which has been successfully employed by Sabre to control odor in a variety of applications. DiKlor™ is an amber liquid with a mild chlorine odor containing 25% of active material (10.2 lbs. per gallon), which will generate a maximum theoretical yield of 2 lbs. of chlorine dioxide per gallon. DiKlor™ reacts rapidly with sulfides, mercaptans, and other odiferous compounds to render them odor free. DiKlor™ has been used for odor control in the following applications:

Large industrial ponds Municipal waste water collection Wet odor scrubbing systems Sludge pits Rendering plants

Food processing plants Feed lots Excavation of putrefying organic matter

PRODUCT BENEFITS

DiKlor™ is a proprietary product designed to yield a sustained slow release of chlorine dioxide for the control of odor causing sulfides and related oxidizable compounds in municipal, industrial and oil field process streams. DiKlor™ selectively oxidizes sulfides, minimizing the amount of chemical required to remove sulfides from process streams when compared to less selective oxidants such as sodium hypochlorite, hydrogen peroxide, chlorine and potassium permanganate. DiKlor™ selectivity to sulfides also gives it superior residual carrying capacity that allows it remains in the system longer should sulfides not be present at the point of application.

DiKlor™ is unique because it selectively reacts almost instantaneously to form chlorine dioxide when combined in-situ with low pH malodorous compounds such as sulfides. Approximately 50% of the chlorine dioxide is reduced to sodium chlorite, which is then free to react again with additional sulfides extending the benefits further downstream until all of the DiKlor™ has been utilized.

CHEMICAL PROPERTIES

Though chlorine dioxide as a free radical is highly reactive, its relatively low redox potential only allows it to react with sulfides, mercaptans, phenols, and other easily oxidized compounds. Unlike ozone, sodium hypochlorite, and chlorine it will not react with the majority of organic compounds and thus can maintain a residual in organic laden fluid streams. Unlike chlorine or sodium hypochlorite, chlorine dioxide does not form chlorination by-products nor will it react with ammonia to form chloramines. In a reducing environment such as a Force Main, the only by-products from chlorine dioxide will be chlorite ions and chloride. The life of chlorite in these systems will be relatively short because it cannot co-exist with sulfides or reduced sulfur species.

PHYSICAL PROPERTIES

Appearance - Amber clear liquid May be light yellow to tan Odor - Mild chlorine Boiling Point. - 106o C Solubility in Water - 100%

Specific Gravity - 1.24 @ 25o C Freezing Point - 9o C pH -.11.5 - 11.7 % Volatile - 75

FEEDING AND DOSAGE

Approximately 3 mg/l of chlorine dioxide is required to control 1 mg/l of hydrogen sulfide. One gallon of 25% Diklor™ will oxidize 0.59 lbs. of sulfide. For simple dosing purposes, 12 mg/l of liquid 25% Diklor™ will oxidize 1 mg/l of sulfide.

MATERIAL COMPATIBILITY

DiKlor™ requires no special processing equipment to treat water systems, and treatment rates can be easily regulated by simple dosing pump adjustments. Continuous injection is recommended in all applications. Treatment should be applied at a point just upstream of the problem location, if possible. The injection system must be dedicated to DiKlor™ L and be 316 SS, PVC-80 or Hastaloy. DiKlor™ is compatible with PVC-80, 316 SS, Hastaloy, fiberglass, glass, cement, and cement-lined pipeline, Viton and polyethylene.

APPLICATIONS

DiKlor™ can be used with many existing air scrubbing systems. It may be injected directly into a line, sprayed, or misted above problem odor areas. Typical applications are:

• Wastewater Collection Systems
• Municipal waste water collection
• Sludge Belt Presses
• Odor Scrubbing Systems

STORAGE AND HANDLING

This material can be stored in 316 SS, fiberglass and high-density polyethylene. Diklor™ should be stored in a cool, dry, well-ventilated location away from direct sunlight. Use care when opening the container and keep tightly closed when not in use. Do not reuse the containers.

DiKlor™ should be separated from combustible, organic, or other readily oxidizable materials, acids, sulfur and flammable vapors. Solid sulfur will ignite if mixed with sodium chlorite solutions. Acids will cause decomposition and evolution of chlorine and chlorine dioxide.

DiKlor™ is an aqueous solution containing sodium chlorite. Dry sodium chlorite will easily ignite with heat or friction when in contact with oxidizable material. Solutions should not be allowed to contact acidic material at any time. Read the Material Safety Data Sheet and label for complete handling instructions before using this product.

PACKAGING

DiKlor™ is available in 5-gallon pails, 15-gallon carboys, 55-gallon drums, returnable and one-way totes, and bulk truckload deliveries.

For more information contact us.