The laccase was immobilized on carboxylated polyvinyl alcohol (PVA)activated by N-hydroxysuccinimide (N-HSI) in aqueous solution at different pHs, temperatures, and with different reaction times, An optimum condition for laccase immobilization is at pH 3Æ2, 40℃and 12h, respectively. mmobilization of laccase increased optimal pH for reaction with 2, 2¢-azinobis (3-ethylbenzthiazoline-6-solfonate) (ABTS) and pH stability. Immobilized laccase proved to be reacted consecutively 17 times with only a 50% decreaseon activity and be used in removal of 2, 4, 6-trichlorophenol (TCP). Conclusions: It was possible to immobilize the laccase on carboxylated polyvinyl alcohol by activation with N-hydroxysuccinimide in HAc-NaAc buffer. The immobilized laccase is both stable and reusable.

作为一种新型低污染的绿色溶剂，离子液体近来受到多方关注。文章综述了离子液体合成和功能化设计方面的研究进展，微波和超声波辅助合成离子液体与常规方法相比所需反应时间短、产率高，表现出一定优势。

为了提高竹浆性能和减少环境污染，对福建丛生小径竹进行了实验室模拟延伸改良连续蒸煮(EMCC) 和常规硫酸盐法蒸煮(CKC)的研究。结果表明，EMCC 蒸煮通过分段加入蒸煮药液和在逆流段进行药液置换，比CKC 具有更高的脱木质素选择性。在蒸煮相同卡伯值的竹浆时，EMCC浆比常规硫酸盐浆(CK浆) 具有更高细浆得率、较低粗渣率、更高粘度和更好强度性能。在相同的打浆度下，EMCC浆抗张指数、耐破指数和撕裂指数都比常规硫酸盐浆高。

In this study, the superoxide anion radicals were generated by the auto-oxidation of 1, 2, 3-trihydroxybenzene and determined by UV spectrophotometry, and the reaction was found to be acilitated by anthraquinone-2-sulfonic acid sodium salt. The bamboo kraft pulps were treated by the 1, 2, 3-trihydroxybenzene auto-oxidation method or the 1, 2, 3-trihydroxybenzene auto-oxidation combined with anthraquinone-2-sulfonic acid sodium salt to show the effect of the superoxide anion radicals during the oxygen delignification of bamboo kraft pulp and the enhancing affect of anthraquinone compounds as an additive on delignification. The results indicated that the superoxide anion radicals could react with lignin and remove it from pulp with negligible damage on cellulose, and the anthraquinone- 2-sulfonic acid sodium salt could facilitate the generation of superoxide anion radical to enhance delignification of pulps. The oxygen delignification selectivity could be improved using the 1, 2, 3-trihydroxybenzene auto-oxidation system combined with anthraquinone-2-sulfonic acid sodium salt.

从针叶木硫酸盐原浆、氧漂浆以及氧漂后的废液中分离出残余木素，在四甲基氢氧化铵（TMAH）存在下，采用裂解气相色谱-质谱联用（Py2GC2MS）的方法研究了氧漂过程中木素分子结构的变化. 对裂解产物的分析表明，木素裂解时产生多种甲基化的芳香化合物，以愈创木基型化合物为主; 氧漂能够氧化和降解木素分子，产生更多的羧基化合物，氧化程度高的木素分子容易从纸浆中溶出，氧漂优先脱除沉积在纤维表面上的短侧链木素.

利用3种漆酶或漆酶/介体系统处理硫酸盐竹浆，并进行TCF漂白。结果显示，与传统的CEH漂白相比，硫酸盐竹浆进行包括漆酶/介体系统处理的OLQP漂白，在达到相近白度情况下，纸浆强度损失小；3种不同漆酶在HBT存在下的TCF漂白浆比CEH 漂白浆黏度高4313%～5612%；从白腐菌HG产生的漆酶在HBT存在下处理硫酸盐竹浆，经OLQP漂白后，浆的白度可达8017%ISO，黏度在800mL/g以上。在没有外加介体的情况下，该漆酶处理纸浆仍具有较好的脱木素效果，经OL0QP（L0，无外加介体）漂白后，纸浆白度可达7617%ISO，比OQP漂后的浆白度提高了2312%ISO。

对杨木硫酸盐浆进行了电化学介体漂白（EM）的研究。结果表明，采用钌钛涂层电极为阳极，不锈钢为阴极，以紫脲酸为介体对杨木硫酸盐浆进行无隔膜电化学处理，能有效脱除纸浆中的残余木素，而浆的黏度损失较小。最优的电化学介体催化漂白（Em）条件为: VIO 浓度1.8mmol/L,电压2.5V，温度50℃,时间5h，pH值45，Na2SO4 浓度0.05mol/L。在该工艺条件下，纸浆卡伯值从17.4 降至11.7，浆的黏度由1144cm3/g降至1059cm3/g。浆料经EME 处理后，卡伯值降至7.9，木素脱除率达55.2%，黏度仅降至1032cm3/g，白度由原浆的39.2%ISO提高至51.2%ISO。

The coagulation-anaerobic acidification-aeration package reactor was designed for the treatment of pulp CEH bleaching effluents, the efficiencies in CODcr, BOD5, AOX and toxicity removal achieved were 88.1%, 81.0%, 98.4% and 92.0%, respectively, with 15h HRT. The toxicity and AOX were removed mainly through coagulation and anaerobic process, while the COD and BOD5 were removed mainly through coagulation and aerobic process. The pretreatment of coagulation precipitation decreased the following organic load, which decreased the following treatment retention time and increased the stability of the system. The results of GC-MS showed: pollutants of wastewater were mainly chlorinated organics, most of AOX and the toxicity were removed by reductive dechlorination and acidified hydrolysis in anaerobic unit, the high COD removal in aerobic unit showed further degradation of pollutants. Chlorine atoms in the ortho position were preferentially dechlorination, that in para position were difficult to remove from chlorinated phenols during biological treatment.

考察纳米二氧化钛及其复合物在物体表面的灭菌作用，用MR-VP显色法测定大肠杆菌数。实验结果表明纳米二氧化钛及其复合物涂于固体表面后都有很好的灭菌效果，其中纳米二氧化钛在瓷片和纸片上对大肠杆菌的灭菌率均达到了100%；纳米二氧化钛涂于瓷片表面，经过600℃高温处理后仍有很好的灭菌效果。因此涂布在固体表面的纳米二氧化钛可以有效地抑制和杀灭微生物作用。

白腐菌Panus conchatus 在液体培养条件下产生了漆酶，经纯化分离后用于对苯基苯酚的催化聚合，探讨了反应温度、缓冲溶液pH以及反应体系中溶剂二氧六环的含量对漆酶催化对苯基苯酚聚合的影响。结果表明，漆酶催化对苯基苯酚聚合反应的最佳反应条件为：温度为40℃，混合溶剂中二氧六环的体积百分数为85%，缓冲溶液为pH=4的012mo/PL Hac-NaAc 溶液。在此条件下用漆酶催化对苯基苯酚聚合,得到了重均分子量MW=80533的聚酚产物，得率为7515%。