pretreatment


Also found in: Dictionary.

pretreatment

1. A priming treatment given before the main course of therapy or the main chemical modification of a substance.
2. Before therapy.

wastewater pretreatment

In environmental practice, acting to attempt to eliminate, reduce, or alter polluted water after it enters the water treatment works.
References in periodicals archive ?
First we need to look back at why chrome-free systems were developed, when we know that chrome based pretreatment systems work so well.
Schreiber, M.D., M.P.H., from the University of Pennsylvania in Philadelphia, and colleagues randomized 300 women who had an anembryonic gestation or in whom embryonic or fetal death was confirmed to receive pretreatment with mifepristone, administered orally followed by misoprostol administered vaginally, or to misoprostol alone administered vaginally.
Focusing on people without homes who have been marginalized due to traumatic experiences or disability, this book contains 13 chapters on practice ideas for working with homeless individuals, emphasizing the importance of dialogue and the approaches of pretreatment and psychologically informed environments.
A batch of 100 g shiitake mushroom slices, after the pretreatment, was fried in 50 L of palm oil.
For the Numeric Rating Scale (NRS) that assessed the average current pain intensity, response rates ranged from 100% at pretreatment to 67.2% at 12-month follow-up.
The pretreatment neutrophil-to-lymphocyte ratio (NLR), an index of systemic inflammation, is reported to be of prognostic value in UTUC patients in studies of European cohorts and some Asian cohorts.[sup][11],[12],[13],[14],[15] Among the former, NLR was found to be an independent predictor for cancer-specific survival (CSS), while among the latter, it was found to be an independent predictor for intravesical recurrence-free survival (IVRFS) as well.
The values of phenols showed a slight reduction for every pretreatment in comparison to pollen in its natural state, except for alkaline pretreatment that presented a raise, these results are similar to those reported by Castro et al.
The two other prominent features noted in the post-treatment biopsy were dermal fibrosis (18/30) and the restoration of the reduced basement membrane pigmentation noted in the pretreatment biopsy (5/30).
Understanding of both chemical components and molecular structure of biomass on enzymatic digestibility is important because these data can give direction of pretreatment efficiency development, enzyme improvement, and enzyme formulation that can overcome the pretreated substrate [7].
Enzymatic hydrolysis of the pretreated biomass with the enzymatic cocktail called Celluzyme XB[TM] is also described, applying pretreatments such as ozonolysis and alkali and chemical pretreatment.