几种生物学指标与生物强化系统降解效率的关系

针对炼油废水生物强化处理系统中有时存在的不稳定造成排水超标的问题,研究了SBR反应器中采用生物强化技术,其细菌数量、脱氢酶、邻苯二酚1,2-双加氧酶(C12O)和邻苯二酚2,3-双加氧酶(C23O)等关键生物学指标与污染物去除效率的综合对应关系,并运用ERIC-PCR技术研究了运行前后处理系统内微生物群落的变化.结果表明,投加菌剂的生物强化处理系统提高了细菌数量和酶活,使处理效率明显提高.生物强化系统中细菌数量及C23O酶活与污染物去除效率呈正相关关系,且微生物群落结构十分稳定.C12O为一种诱导酶,其酶     

废纸回收的意义及脱墨剂市场前景

主要阐述了废纸回收的重要意义，介绍了脱墨剂的基本组成及脱墨工艺并对脱墨剂的市场进行了详细调查。     

Hydrogeology of a restored coastal dune system in northeastern Scotland

This paper reports the results of 12 years of hydrological monitoring at the St. Fergus dune system in northeastern Scotland. The site is adjacent to the UK’s largest gas terminal and the dunes are crossed in five places by North Sea gas pipelines which were constructed between 1976 and 1990. These are buried beneath the dune system which was restored after pipeline installation. The dunes include a substantial freshwater wetland which is seasonally flooded and provides an important habitat for waterfowl. The hydrogeology of the site is characterized and the hydrogeological processes that sustain this wetland feature are considered including recent climatic fluctuations.     

垃圾堆肥接种固氮菌对堆肥含氮量的影响

探索了垃圾堆肥混合接种自生固氮菌和纤维素分解菌对堆肥含氮量的影响。实验证明，在固氮菌的作用下，堆肥的含氮量有一定提高，纤维素分解菌对固氮菌的生长有一定协同效应。     

水中直链烷烃的光敏化降解

采用实验室模拟方法，研究了水中直链烷烃光敏化降解的途径，结果表明，经紫外光照射烷烃可被激发态的敏化剂抽取一个氢原子而形成烷基。在有氧条件下，它可形成烷氧自由基，进而被氧化成相应的酮。如果烷氧基中有γ－氢原子存在，它可通过类似于ＮｏｒｉｓｈⅡ型重排反应，而生成短碳链的甲基酮，烯烃以及小分子量的乙烯、环氧乙烷、乙二醇、丙酮、甲醛等。     

Possibilities for management of coastal foredunes with deteriorated stands ofAmmophila arenaria (marram grass)

Ammophila arenaria (marram grass) is the most important plant species for sand stabilization in European coastal foredunes. Stand degeneration due to poor supply of wind-blown sand enhances the susceptibility for wind erosion when successional species do not become established. ReplantedA. arenaria often fails to become established. In the present study we examined whether management practices such as mowing, fertilizing, burning or below-ground cutting of plants may be applied to re-establish the vigour ofA. arenaria. Field experiments performed at exposed sites, where naturally succeeding plant species are not supposed to become established due to salt spray, showed that none of the applied methods resulted into enhanced tiller density ofA. arenaria. Thus, further studies are necessary to solve this type of management problem. At the leeward side of foredunes, the successional speciesFestuca rubra ssp.arenaria andElymus athericus could be established successfully as both pre-grown seedlings and planted bundles of cuttings (all further experiments were fertilized). When planted in spring, cuttings of successional plant species established less than those planted in early winter. Water repellency of the sand surface is supposed to be the main cause for this. Pre-grown seedlings were less susceptible for the season of planting. Direct sowing was not effective. Rabbit browsing had to be omitted to obtain successful establishment. When living rhizomes of successional plant species were still present in the soil profile, fencing alone turned out to be effective to re-establish vegetation at initially bare sites.     

治理含荧光渗透剂废水的研究

本文采用化学混凝法对含国外荧光渗透剂的有机废水进行了研究。结果表明：无机凝聚剂和有机絮凝剂配合使用，能够将废水中的ＣＯＤＣｒ从７５０ｍｇ／Ｌ降低至１００ｍｇ／Ｌ以下，且所用药品价廉易得。     

AS法制浆废液改性减水剂实验研究

通过实验，对AS法麦草、芦苇造纸制浆废液加入Ba(OH)2溶液和吐温-80进行化学改性，制成木素磺酸盐为主要成份的混凝土减水剂，制得的减水剂的3项主要性能指标均达到以国家标准，它们在掺量3‰时净浆减水率为6%-8%，砂浆减水率为15%-16%，掺麦草、芦苇浆废液减水剂的砂浆3d抗压强度分别提高28%和30%，7d抗压强度分别提高18.6和26.4%。     

移动床复合金属氧化物烟气脱硫的研究

选用新型ＤＳＩ型复合金属氧化物脱硫剂，研究其在移动床反应器中的脱硫行为，采用正交法设计实验，考察了诸因素对脱硫过程的影响，并优化了工艺条件，得到了最佳工艺参数，在移动床中实现脱硫剂的再生，得到浓度为４％的硫氧化物再生气，并可回收利用制备浓硫酸，在反复实验的基础上，建立了适用于烟气脱硫的移动床反应器数学模型，该模型可用于反应器的设计，为工业放大提供了理论依据。     

胶结稻壳灰制备钢铁厂用绝热材料的研究

介绍了利用钙淀粉胶结剂胶粘稻壳灰生产钢铁厂专用绝热制品的方法 ,为稻壳的利用提供了新的途径。该制品在高温下使用时不溃散、不散发有害的粉尘和气体 ,从而避免了直接使用稻壳灰对生产场所环境的污染 ;探讨了稻壳灰的碳化过程、胶结机理以及相关因素对制品性能的影响