造纸污泥的资源化综合利用研究现状与展望

Research status and prospect of the comprehensive utilization of paper mill sludge

造纸污泥处理难度大、处置费用高,造纸污泥的处理处置是影响造纸行业可持续发展的一大难题。造纸污泥传统的处理处置方法主要是填埋法和焚烧法,但这两种方式都存在对环境造成二次污染的隐患,开发高效环保的污泥处置方式成为亟待解决的环境问题。众多学者致力于造纸污泥的资源化综合利用研究,以造纸污泥为原材料进行厌氧发酵、好氧堆肥及生产建筑材料等。鉴于造纸污泥中生物质含量丰富,利用造纸污泥中的生物质为原材料,通过一定的改性方法制备出不同的水处理功能材料,实现“以废治废”的目标,不仅符合可持续发展的环保理念,还能为造纸污泥的资源化综合利用提供一种新的思路。综述了造纸污泥的来源、特点、处理处置方式、资源化综合利用的研究现状、造纸污泥中纤维素类物质资源化的研究现状与展望,以期为造纸行业的良性发展提供一定的理论支撑。

Paper mill sludge is difficult to be treated with the high disposal cost,which limits the sustainable development of papermaking industry.The traditional disposal methods are mainly landfill and incineration,however,landfill and incineration will cause secondary pollution to the environment.Therefore,developing environmentally-friendly disposal methods is a key issue for paper mill sludge disposal.Many scholars focused on the comprehensive utilization of papermaking sludge,such as anaerobic fermentation,aerobic composting and production of building materials.Based on the rich biomass content in paper mill sludge,developing paper mill sludge-based functional materials by certain modification methods for water treatment can achieve the goal of"treating waste with waste".It not only conforms to the environmental protection concept of sustainable development,but also provides a new idea for the comprehensive utilization of paper mill sludge.This paper reviewed the sources,properties,disposal methods and comprehensive utilization of paper mill sludge,research status and prospect of the utilization of cellulosic substances in papermaking sludge.This paper aims to provide some theoretical support for the sustainable development of the paper industry.