浅谈高级别生物安全实验室活毒废水处理系统

从活毒废水处理装置的设计、安装、控制、系统参数、系统组成等多个方面对活毒废水处理系统做了详细的阐述,并详细介绍了序批式活毒废水处理系统的三种方式.     

自食其果

通过废水厂弄虚作假,把污水排放到河里的故事,说明处理废水是一项非常严肃而重要的工作。     

溶剂浮选-高效液相色谱法测定工业废水中酚类化合物

建立了溶剂浮选-高效液相色谱法测定工业废水中酚类化合物的新方法。采用溶剂浮选法分离富集水体中壬基酚（NP）、辛基酚（OP）和双酚A（BPA）,用高效液相色谱法测定各组分含量。对影响浮选效果的参数如浮选溶剂、试液pH值、氮气流速、浮选时间等因素进行优化,优选出最佳浮选条件。方法检出限分别为：0.03 μg/L（BPA）,0.25 μg/L(OP),0.21 μg/L(NP)。采用所述方法对石化地区的水样进行测定,样品加标回收率为83%～110%,RSD为4.2%～5.9%。     

唐山中小型铁矿尾矿复垦试验

针对唐山中小型铁矿生产过程中废石、尾矿排放给矿区带来的危害，进行了为期三年的农作物适应性种植试验，并作了化验分析追踪调查，复垦后农作物长势良好，农林种植的成功说明了尾矿复垦的可行性，为鞍山式铁矿地区开展复垦工作提供了科学依据。     

利用豆制品生产废水培养油脂酵母的研究

研究了利用豆制品生产废水培养油脂酵母的适宜工艺条件。初始pH为6．5的豆制品生产废水，在接种量为10％的条件下发酵60h，其菌体密度最大，且废水中残糖、残氮量较低。结果表明：利用豆制品生产废水培养油脂酵母可使废水得以资源化利用，同时可降低废水的各项污染指标。     

微电解法处理造纸中段废水及其机理探讨

将微电解法应用于处理造纸中段废水,最佳的实验条件为:曝气量0.4 L/min、铁炭质量比2∶1、pH值3、反应时间10min.从铁屑反应前后表面状况的扫描电镜和附集于铁屑表面沉积物的红外光谱分析,比较铁屑/炭对废水微电解处理法、铁屑/炭在酸性水溶液中获得新生态Fe2 混凝法以及直接使用FeSO4混凝法的3种方法去除色度和CODCr效果,说明微电解法有氧化还原作用、絮凝作用、电附集作用、过滤吸附作用等反应机理.     

UASB-CASS工艺处理啤酒废水研究

UASB-CASS组合工艺处理啤酒废水试验表明,最佳工艺条件为:啤酒废水在调节沉淀池内停留时间为8h;UASB容积负荷为7.2kgCODcr/(m3·d),反应时间为15h;CASS氧化池内污泥负荷为0.55kgCODcr/(m3·d)。处理后的出水水质稳定,各项指标均可达到国家《污水综合排放标准》(GB8978-96)一级排放标准。本工艺具有技术简单、抗冲击负荷能力强、节省能源、运行稳定可靠、污泥排放量少、便于操作管理等优点,适用于水质变化较大的工业废水处理。     

提高印染废水可生化降解酌研究

利用微电解法预处理难生化降解的印染废水,对影响微电解效率的因素进行了研究。结果表明：在印染废水的pH为4,作用时间为60min,铁炭的质量比为2：1时,微电解法对难生化降解的印染废水的色度、CODCr的去除率分别达到96％和65％,BOD5／CODCr的比值由0．19提高到0．42,预处理后的印染废水的可生化性能明显提高。     

制革废水快速启动UASB反应器

制革废水是一类污染负荷很高的工业废水,由于其自身的特点,利用高效的厌氧处理技术处理高负荷的制革废水还是一个新的研究领域。本文简单综述了几种制革废水快速启动UASB反应器的技术和研究,力争对UASB工艺在制革废水处理方面的实际应用起到指导作用。     

Study of the inhibitory activity of phenolic compounds found in olive products and their degradation by Lactobacillus plantarum strains

Lactobacillus plantarum is the main species responsible for the spontaneous fermentation of Spanish-style green olives. Olives and virgin oil provide a rich source of phenolic compounds. This study was designed to evaluate inhibitory growth activities of nine olive phenolic compounds against four L. plantarum strains isolated from different sources, and to explore the L. plantarum metabolic activities against these phenolic compounds. None of the nine compounds assayed (oleuropein, hydroxytyrosol, tyrosol, as well as vanillic, p-hydroxybenzoic, sinapic, syringic, protocatechuic and cinnamic acids) inhibited L. plantarum growth at the concentration found in olive products. Oleuropein and tyrosol concentrations higher than 100 mM were needed to inhibit L. plantarum growth. On the other hand, sinapic and syringic acid showed the highest inhibitory activity since concentrations ranging from 12.5 to 50 mM inhibited L. plantarum growth in all the strains analyzed. Among the nine compounds assayed, only oleuropein and protocatechuic acid were metabolized by L. plantarum strains grown in the presence of these compounds. Oleuropein was metabolized mainly to hydroxytyrosol, while protocatechuic acid was decarboxylated to catechol. Metabolism of oleuropein was carried out by inducible enzymes since a cell-free extract from a culture grown in the absence of oleuropein was unable to metabolize it. Independent of their isolation source, the four L. plantarum strains analysed showed similar behaviour in relation to the inhibitory activity of phenolic compounds, as well as their ability to metabolize these compounds.