TY - JOUR N2 - The presented paper deals with the investigations on the content of chosen trace impurities in offal taken at various stages of technological process in felt production in hat industry, and its possible. The contents of lead, zinc, cadmium, iron, cobalt, copper, nickel and chromium in Bove hair washer wastes, in wastes from rinsing of washer, and in wastes from felting process were determined by spectrophotometric methods because of their simplicity and relative availability. L1 - http://journals.pan.pl/Content/123749/PDF/13_AE_VOL_29_3_2003_Matysek_Majewska_Spektrofotometryczne.pdf L2 - http://journals.pan.pl/Content/123749 PY - 2003 IS - No 3 EP - 133 KW - chemical wastes KW - heavy metals KW - spectrophotometry VIS A1 - Matysek-Majewska, Danuta PB - Polish Academy of Sciences VL - vol. 29 DA - 17.07.2022 T1 - Spectrophotometric Determination of Heavy Metal Traces in Wastes from Felt Production SP - 129 UR - http://journals.pan.pl/dlibra/publication/edition/123749 T2 - Archives of Environmental Protection ER -