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研究了将造纸过程中的2种废弃物——废水处理时产生的污泥及纸浆筛选净化时产生的废渣用作建筑材料(黏土砖)的原料的可行性。污泥和废渣的性质和组成符合黏土砖的性能要求,可用于生产黏土砖。污泥和废渣热值高,应用到黏土砖中可节约原料和能源。实验结果表明,随废弃物添加量的增加,黏土砖的线性膨胀和吸水性能提高,抗压缩性能降低;用造纸废渣制备的砖块试样比用污泥制备的砖块试样的抗压缩性能降低得更加明显;此外,加入2种废弃物的砖块试样的热传导性能均明显降低。
The feasibility of using two types of wastes in the process of papermaking, that is, sludge generated during waste water treatment and waste residue produced during the screening and purifying of pulp, was used as a raw material for building materials (clay bricks) was studied. The nature and composition of sludge and waste residue meet the performance requirements of clay bricks and can be used to produce clay bricks. Sludge and waste heat value is high, applied to the clay brick can save raw materials and energy. The experimental results showed that the linear expansion and water absorption of clay brick increased and the compressive resistance decreased with the increase of the amount of waste. The compressive strength of brick samples prepared with papermaking sludge was higher than that of brick samples prepared with sludge Reduce more obvious; In addition, the addition of two kinds of waste samples of brick thermal conductivity were significantly reduced.