大孔树脂对邻苯二甲酸的吸附研究

研究了XDA-200大孔树脂对水溶液中邻苯二甲酸的吸附。结果表明XDA-200树脂对水溶液中的邻苯二甲酸吸附速度很快，30min内基本达到平衡，其后达到完全平衡的吸附进程非常缓慢。树脂对邻苯二甲酸的吸附量随质量浓度增加而增加。pH值降低，有利于邻苯二甲酸在溶液中以分子态存在，易于树脂吸附。邻苯二甲酸的吸附均满足Freundlich和Langmiur等温吸附方程。泄漏点与进水浓度和流速均有很大关系。     

催化臭氧化去除水中氯乙酸的研究

运用催化臭氧化技术去除水中消毒副产物氯乙酸。结果表明：（1）Ni/Al2O3是一种高效催化臭氧化氯乙酸的催化剂；（2）催化臭氧化分解氯乙酸的效率，明显高于单独臭氧化和单独吸附去队氯乙酸效率之和；（3）低pH对氧化氯乙酸较为有利。     

利用糠醛渣生产高吸附性粉状活性炭

介绍了采用磷酸作活化剂，将糠醛渣制成活性炭的最佳工艺条件。产品活性炭的脱色力及磷酸消耗成本等指标均达到预期理想目标     

苯甲酸类物质的光催化降解及其QSAR

研究了１３种苯甲酸类化合物在固定膜平板型反应器中的光催化降解。首先用紫外辐射法将粉末二氧化钛固定在平板上；并研究了苯甲酸化合物在此平板上的光催化降解，考察了固定催伦剂下污染物的降解动力学，以及不同取代基团和取代位置对光降解速率的定性影响；最后探讨了苯甲酸物质光降解速率与其结构的定量关系。     

硫铁矿生产硫酸的废水治理

电石渣中和－精密微孔过滤技术治理硫酸废水的工艺简洁、可靠，占地面积小，运行费用低，出水优于国家二级排放标准。     

O3/UV降解水中的乙酸和硝基苯

利用O3 /UV和O3/H2O2降解了水中的乙酸,结果表明,在相同条件下处理60min后,O3/UV对乙酸的去除率仅比单独臭氧化处理提高了3%,而O3/H2O2在此条件下完全降解乙酸.O3/UV在处理硝基苯过程中却显示较好的氧化降解能力,通过分析表明,硝基苯降解过程中所产生的副产物H2O2对有机物的去除具有很重要的作用.因此,O3/UV氧化降解能力的提高可能有2方面的原因,紫外光对有机物的活化作用;中间产物H2O2催化臭氧分解产生了高活性的羟基自由基. 单独紫外光催化臭氧分解产生羟基自由基的效率极低.     

Metagenomic insights into responses of microbial population and key functional genes to fulvic acid during partial nitritation

The long-term impact of fulvic acid (FA) on partial nitritation (PN) system was initially examined in this study. The obtained results revealed that the FA lower than 50 mg/L had negligible effect on the nitrite accumulation rate (NAR nearly 100%) and ammonium removal rate (ARR 56.85%), while FA over 50 mg/L decreased ARR from 56.85% to 0.7%. Sludge characteristics analysis found that appropriate FA (<50 mg/L) exposure promoted the settling performance and granulation of PN sludge by removing Bacteroidetes and accumulating Chloroflexi. The analysis of metagenomics suggested that the presence of limited FA (0-50 mg/L) stimulated the generation of NADH, which favors the denitrification and nitrite reduction. The negative impact of FA on the PN system could be divided into two stages. Initially, limited FA (50-120 mg/L) was decomposed by Anaerolineae to stimulate the growth and propagation of heterotrophic bacteria (Thauera). Increasing heterotrophs competed with AOB (Nitrosomonas) for dissolved oxygen, causing AOB to be eliminated and ARR to declined. Subsequently, when FA dosage was over 120 mg/L, Anaerolineae were inhibited and heterotrophic bacteria reduced, resulting in the abundance of AOB recovered. Nevertheless, the ammonium transformation pathway was suppressed because genes amoABC and hao were obviously reduced, leading to the deterioration of reactor performance. Overall, these results provide theoretical guidance for the practical application of PN for the treatment of FA-containing sewage.     

不同离子在CCl4引发自由基反应中的作用及其环境生物学意义

报道了一种简便的ＣＣ１４体外引发自由基反应的模型，以小鼠肝匀浆脂质过氧化产物丙二醛（ＭＤＡ）的ＯＤ５３２ｍｍ值（ＭＤＡ－ＯＤ５３２ｍｍ）作为测定自由基反应的间接指标，研究了Ｈｇ＾２＋、Ｍｎ＾２＋、Ｎｉ＾２＋、Ｃｒ＾３＋、ＳｅＯ３＾２－等离子和Ｓs２Ｏ３水溶液在ＣＣ１４引发自由基反应体系中的作用。结果表明：Ｍn＾２＋能显著抑制自由基的生成，Ｃr＾３＋有一定的抑制作用，而ＨgＴ＾２＋对自由基产生有明显促进     

降雨氢离子浓度的参数化研究

对酸雨模式中降雨的物理过程进行了简化假设，在此基础上研究了大气中影响降雨氢离子浓度的几种主要污染物（ＳＯ２ ，ＶＯＣｓ ，ＮＨ３ ，ＮＯｘ） 及温度、天顶角、雨强等因素同降雨氢离子浓度的参数关系