【作者】 房桂干；

【Author】 FANG Gui-gan (Institute of Chemical Industry of forest Products , Chinese Academy of Forestry Nanjing , 210042 China)

【机构】 中国林业科学研究院制浆造纸研究开发中心；

【摘要】 本文论述了各类化机浆废水的发生量、污染特征和生物毒性。总结了国内采用厌氧-好氧生物技术治理化机浆废水的几个典型工程。介绍了中国林科院制浆造纸研究开发中心对化机浆废水进行电化学、强氧化深度处理的技术成果。制浆造纸研究开发中心首次对国内数10种速生材制CTMP、P-RCAPMP化机浆废液的蒸发性能、燃烧性能进行了较系统的研究,全面监测了各种化机浆废水的固形物、有机物、无机物含量、固形物中元素种类与含量,分析了不同浓度化机浆废水的密度、沸点、粘度。重点检测了化机浆废水固形物的燃烧值,各类固形物燃烧值为12.36～13.84MJ/kg。认为在化机浆废水污染浓度成倍升高和更加严格的制浆造纸水污染物排放新标准的形势下,零排放将是今后若干年我国化机浆工业发展的一个亮点。更多还原

【Abstract】 the generation, pollution characteristics and bio-toxicity of several types effluent from chemimechanical pulping lines are discussed. Some typical treatment systems operated in domestic mills are summarized. Recently research activities in Chinese academy of forestry on effluent advance treatment process using electrochemistry, enhanced oxidation are introduced, and investigations on evaporation abilities and flammable properties of effluents from 10 fast-growing wood species pulping using CTMP and P-RC APMP processes are compared. At the same time, contents of solids, organics and inorganic, types of elements and contents in solids in effluent from above pulping processes. Densities, boiling points and viscosities of effluents at different concentration are analysised. Heat values of solids from those effluents are measured in the range from 12.36 MJ/kg to 13.84 MJ/kg. in conclusion, the ideal pathway for chemimechanical pulping effluent treatment will be the process of "Zero-discharge" which must be a right solution for the future chemimechanical pulping effluent treatment in China.更多还原