41. When potassium hydroxide is used as a pretreatment , the alkalinity must be first neutralized before adding Melzer's. 42. The Pretreatment Program protects the treatment process and keeps costs down by working with local businesses to minimize pollutant discharges. 43. The cytoprotective effect against ulcers is abolished by pretreatment with N-ethylmaleimide, suggesting that sulfhydryl compounds are involved. 44. Pretreatment of sweet potato can help to minimize risk of losses . drying can reduce spoilage and inactivate metabolic degradation.45. Although virus levels subside to pretreatment levels, scientists do not know what to make of the HIV-stimulating effect. 46. Most systems are similar in design but may vary in the pretreatment section depending on the nature of the source water. 47. After treatment, however, the amount of virus in the blood dropped to less than 1 percent of the pretreatment level. 48. "James Knott disconnected a pretreatment system, " said Sam Silverman, an enforcement lawyer with the Boston EPA. 49. That, however, requires a pretreatment that splits the cellulose into glycose molecules and other sugars that subsequently can be fermented. 50. Another issue is concern about weakened mandates for pretreatment of industrial wastes before they are made part of the municipal waste stream.
