漆酶作用下添加对-羟肉桂酸处理APMP废水的研究  

A preliminary investigation on treatment of APMP effluent by addition of P-hydroxycinnamic under the action of laccase

作　　者：孙媛芳[1] 谢益民[1] 高洪贵[1] 

机构地区：[1]山东轻工业学院造纸科学与技术省部共建教育部重点实验室,济南250353

出　　处：《中华纸业》2009年第14期22-25,共4页China Pulp & Paper Industry

基　　金：国家自然科学基金项目(20674046)

摘　　要：在漆酶催化作用下,添加的对-羟基肉桂酸能与化机浆APMP废水中的可溶性木素及其衍生物发生聚合反应,从而生成疏水性的大分子聚合物而沉淀除去。实验表明:在漆酶的作用下添加对-羟基肉桂酸可以有效地除去废水中的可溶性木素及其衍生物,在对-羟基肉桂酸用量为0.066g/L,漆酶用量为14.82IU/L,处理温度为25℃,处理时间为1h的条件下废水的处理效果最好,木素的脱除率可达73.9%,CODCr的去除率可达69.1%,色度脱除率为86.7%。Under the laccase catalysis, the water soluble lignin in APMP effluent and its derivatives were polymerized with p-hydroxycinnamic acid to form high molecule hydrophobic lignin polymer which will be removed by sedimentation. The results of the experiment indicate that addition of p-hydroxycinnamic acid could effectiveiy remove soIuble lignin and its derivatives in the effluent under the reaction of laccase. The optional effluent treatment condition： p-hydroxycinnamic dosage 0.066 g/L, laccase dosage 14.82 IU/L, temperature 25℃, reaction time lh. The removal rate of lignin reached 73.9%, the removal rate of CODCr was 69.1% and the chroma removal rate was 86.7% respectively.

关 键 词：漆酶 对-羟基肉桂酸 废水 聚合 脱色 

分 类 号：X793[环境科学与工程—环境工程] TS743.3[轻工技术与工程—制浆造纸工程]