| 摘要 |
<p>PURPOSE:To obtain paper, composed of specific slag wool composed of sewage sludge and pulp, capable of reducing cost, contributing to forest protection and effectively utilizing the sewage sludge. CONSTITUTION:The objective paper is composed of (A) 30-70wt.% slag wool composed of sewage sludge which is prepared by blending sewage sludge with 20-60wt.% calcium component regulator and consisting essentially of <=30wt.% P2O5, 10-50wt.% SiO2, 3-20wt-% Al2O3, 10-70wt.% CaO, <=20wt.% MgO, 5-25wt.% Fe2O3 and (B) the remainder of pulp.</p> |
