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Organic Treatment Chemistries

Ursus has the expertise to test a variety of proprietary and non-proprietary technologies that can mineralize organic contaminants and treat co-mingled metals and organic wastes.

A summary of some of the chemistries Ursus is proficient in using are shown below.

Fentonís Reagent

Fentonís Reagent has been widely use to degrade a host of chlorinated and non-chlorinated contaminants including petroleum (diesel, gas), chlorinated hydrocarbons (PCE, TCE, etc), PNAís, pesticides, and others. Traditional Fentonís Reagent utilize a transitional metal catalyst to form a hydroxyl radical. The short lived hydroxyl radical is very effective in mineralizing contaminants. No by-products of concern are formed when using Fentonís Reagent. Fentonís Reagent is typically applied in either a in-situ application (chemical injection) or through ex-situ (physical mixing) the chemistry in soils, groundwater, and wastes.

Modified Fentonís Reagent

A modified Fentonís Reagent is similar to a traditional Fentonís Reagent except a different catalyst is used. Alternate catalysts include proprietary organic acids and cheated metals.


Persulfate forms a sulfate radical when activated. The sulfate radical is a very strong oxidizer capable of mineralizing a wide array of organic contaminants including (PCE, TCE, etc), PNAís, pesticides, petroleum and others. Persulfate can be activated to form the sulfate radical by a number of methods including transitional metals, heat, and other oxidants. Persulfate activation produces sulfate ions as a by-product, which may impart a salty taste in groundwater. Persulfates can be applied in-situ and ex-situ to treat soil, groundwater and other wastes.


Permanganate is very effective in mineralizing chlorinated hydrocarbons in soils, groundwater and wastes. Permanganate does not require a catalyst or activations and can be applied over a wide pH range. Reaction by-products of permanganate include manganese dioxide. Permanganate is generally applied in-situ to treat contaminated groundwater and soil.

Other Chemistries

Various combinations of treatment chemistries can be applied depending on the material treated, contaminant levels and combination of contaminants.

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