首页> 外国专利> AN IMPROVED PROCESS FOR THE TREATMENT OF AGRO BASED BLACK LIQUOR WASTE TO PRODUCE POTABLE WATER

AN IMPROVED PROCESS FOR THE TREATMENT OF AGRO BASED BLACK LIQUOR WASTE TO PRODUCE POTABLE WATER

机译:一种用于处理农业用水的黑色基废液产生可饮用水的改进方法

摘要

This invention relates to an improved process for the treatment of agro based black liquor waste to produce potable water. The process treats black liquor from paper mils by removing organics, lignin and coloring matter using biological material. Process steps comprises: contacting at least 1:1 diluted the said black liquor with a marine red alga in the form of dry powder embeded in neutral matrix or natural form containing essentially, polysaccharides having sulfate/acetyl functional group on cell wall & galactopyrandse on their cell membrane, at least for a period of 30 minutes preferably under stirring, treating with conventional calcarious material at least for 30 minutes preferably under stirring, seperating the coagulated material so formed from supernatant by conventional methods, optionally treating the said supernatant by conventional ion-exchange resin followed by activated charcoal, to produce potable water.
机译:本发明涉及一种用于处理农业基黑液废料以生产饮用水的改进方法。该工艺通过使用生物材料去除有机物,木质素和色素来处理纸浆中的黑液。工艺步骤包括:使至少1:1稀释的所述黑液与以干粉形式埋入的海洋红藻接触,所述干粉嵌入中性基质或天然形式中,所述干粉中基本上含有在其细胞壁上具有硫酸盐/乙酰基官能团的多糖和其半乳糖苷细胞膜,至少持续30分钟,最好在搅拌下,用常规钙质物质处理至少30分钟,最好在搅拌下,通过常规方法从上清液中分离出如此形成的凝结材料,可选地通过常规离子处理所述上清液。交换树脂,然后再用活性炭生产饮用水。

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