2001, Volume 3, Issue 10
Strategic Study of CAE >> 2001, Volume 3, Issue 10
Study on New Technology of Zero Pollution Discharge in Treating Papermaking Extracted Waste Liquor
1. Research Institute of Chemical Processing and Utilization of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China
2. Linzhou Dryer Plant, Wuxi, Jiangsu 214181, China
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Abstract
New technology of waste liquor from papermaking was provided by researching the treatment of waste water from pulping plant. The new technology incorporates evaporation and spray drying to the treating system of waste liquor. The technology of combining evaporation and spray drying was studied, practiced and concluded. Its economic analysis was also done. It was proved that not only zero discharge of extracted waste liquor could be realized, but also the lignin products were obtained by using this new technology.
Keywords
waste liquor of papermaking ; evaporation ; spray drying ; economic analysis
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