Abstract
A laboratory procedure for the realistic screening of paper mill toxicants is described.This method is modified for the pulp substrate method that was already proposed by Appling et al in 1951. The technique consists of two parts, that is ;The technique I is using 1% of pulp solution for the test culture substrate, and Pseudomonas melogenes, Penicillium steckii, Aspergillus niger and Humicola grisea are inoculated on it for the test organisms.The technique II is employed as slime sample which was taken directly from an area of the mill system in stead of the test organisms. The dilution plate method is made for an evaluation of biosides mixing substrates in which slime forming organisms had been growing.This technique is available for the selection of slime control agents at the laboratory of paper mills.
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