pretreat

But when electroplaters pretreat, they are still left with sludge that is toxic.

PB was used to pretreat nerve agent poisoning; it is not a vaccine however.

Canners had to pretreat the brine because officials feared strains on the sewage system.

And pretreat ring-around-the-collar with shampoo-the cheaper the better.

This asthma test can warn you of an impending asthma attack so you can pretreat before you have serious problems.

The decision to pretreat depends on the quality of the blast furnace metal and the required final quality of the BOS steel.

Herbicide safeners can be used to pretreat crop seeds prior to planting, or they can be sprayed on plants as a mixture with the herbicide.

In many instances the decision to pretreat a product is based on theoretical knowledge of freeze-drying and its requirements, or is demanded by cycle time or product quality considerations.

But while groups like Clean Ocean Action call for laws requiring industries to pretreat their own sewage, state officials recognize the political difficulties of handing local businesses such an expensive task.

That same year, the state environmental agency, which had been given enforcement powers for the first time by Clinton, began enforcing long-ignored directives to Tyson to pretreat waste from its Green Forest processing plant.

Some mills pretreat wood chips or other plant material like straw with sodium carbonate, sodium hydroxide, sodium sulfite, and other chemical prior to refining with equipment similar to a mechanical mill.

Metal Pollution Reduced Industry is now required to pretreat its wastes, and that has cut by 63 percent the amount of metals like copper, zinc, silver and nickel discharged into the harbor, Mr. Bendick said.

Another Canadian company, SunOpta, markets a patented technology known as "Steam Explosion" to pretreat cellulosic biomass, overcoming its "recalcitrance" to make cellulose and hemicellulose accessible to enzymes for conversion into fermentable sugars.

To pretreat a stain, you may use a liquid detergent, a soil-and-stain-removing pretreat spray, bar soap, or a pretreating paste made of powdered detergent (do not use one that contains bleach) and water.

For example, he said, cities are supposed to "pretreat" toxic wastes from industries that discharge into the municipal sewage systems; but he said E.P.A. figures show that only a quarter of all cities actually have adequate pretreatment programs for toxic wastes.