›› 2009, Vol. 21 ›› Issue (1): 0-70.

• 论文 •    

竹浆废水酸析固废农用处理初步研究

吕庭君 1,罗安程 1,*,曹 杰 2,张 华 2,方兆平 2,许 超 2   

  1. 1 浙江大学环境与资源学院,浙江杭州310029;2 浙江省安吉县环境保护局,浙江安吉313300;3 杭州师范学院材料与化学工程学院,浙江杭州310036
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-01-25 发布日期:2009-01-25

Agricultural utilization of solid waste from treating bamboo soda pulping waste water

LU Ting—jun;LUO An-cheng;*;CAO Jie;ZHANG Hua;FANG Zhao-ping;XU Chao   

  1. 1 College of Environmental and Resource Science,Zhejiang University,Hangzhou 310029,China;2 Bureau of Environmental Protection,Anji 313300,China;3 College of Materials Science and Chemical Engineering, Hangzhou Teachers College,Hangzhou 310036,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-25 Published:2009-01-25

摘要: 竹浆废水酸析处理后产生以木质素为主要成分的固体废物。通过室内试验与盆栽试验,研究了竹浆废水酸析处理过程中产生的酸析固废与磷矿粉混合进行农业利用处理,并对处理效果进行分析。结果表明,将磷矿粉与酸析固废混合可有效地中和酸析固废中的游离酸,反应时间需要4 d以上。酸析固废能部分活化磷矿粉中的磷,提高磷的有效性。酸析固废与磷矿粉以质量比为1:1混合4 d后活化效果最佳。对酸析固废活化磷矿粉中磷的机理研究表明,酸析固废中的残留酸是磷活化的主要因子。小白菜(Brassica campestris ssp.chinensis L.)和萝卜(Raphanus sativus L.)盆栽试验结果表明,经酸析固废活化后的磷矿粉有一定肥效,肥
效介于磷矿粉与钙镁磷肥之间。

关键词: 竹浆废水, 酸析固废, 磷矿粉, 农业利用

Abstract: Bamboo soda pulping waste water produces a great quantity of solid waste in the process of acidification.The main component of the solid waste is lignin.Agricultural udlization of the solid waste was conducted in the lab and pot eX—
periments.The results showed that rock phosphate could efectively neutralize the free acid in the solid waste to,enhance the pH to a suitable level f0r tl1e agrieultu~ use.Rock phosphate and solid waste should be mixed at the ratio of 1:1 and the mixture should be stored more than 4 d to reach the highest activating efficiency.Further study showed that phosphorous in rock phosphate was predominantly activated by free acid.The result of pot experiment indicated that the nutritional effect of the mixture of solid waste and rock phosphate on the growth of radish(Raphanus sativus L.)and Chinese cabbage (Brassica campestris ssp.chinensis L.)was between rock phosphate and calcium magnesium phosphate.

Key words: bamboo soda pulping waste water, solid waste, rock phosphate, agrieuhural utilization