滇南湖群环境综合治理总体规划研究

本规划采用决策支持系统 (DSS)对湖泊的水量平衡和水质现状以及采用不同措施对水质的影响进行评估 ,并通过多标准分析 (MAC)对每项措施进行优先排序 ,使规划更具科学性和可操作性。     

南京东郊石炭纪威宁期的风暴沉积

南京东郊石炭纪威宁期碳酸盐岩地层中普遍见有风暴沉积,以有突变的底界和底面构造、贝壳层、粒序层以及在风暴低能快速堆积条件下所形成的遮蔽构造等为基本鉴别要素,这些要素的不同组合构成的剖面结构可划分为五种类型,据此笔者提出本区风暴沉积的综合剖面结构。     

The effects of land use and its patterns on soil properties in a small catchment of the Loess Plateau

Due to relatively strong human activities in the hilly area of Loess Plateau,the natural vegetation has been destroyed,and landscape pattern based on agricultural land matrix was land use mosaic composing of shrub land,grassland,woolland and orchard.This pattern has an important effect on soil moisture and soil nutrients.The Danangou catchment,a typical small catchment,was selected to study the effects of land use and its patterns on soil moisture and nutrients in this paper.The results are as follows:The comparisons of soil moisture among seven land uses for wet year and dry year were performed:(1)the average of soil moisture content for whole catchment was 12.11% in wet year,while it was 9.37% in dry year;(2)soil moisture among seven land uses was significantly different in dry year,but not in wet year;(3) form wet year to dry year,the profile type of soil moisture changed from decreasing type to fluctuation-type and from fluctuant type to increasing type;(4)the increasing trend in soil moisture from the top to foot of hillslope occurred in simple land use along slope,while complicated distribution of soil moisture was observed in multiple land uses along slope.The relationships between soil nutrients and land uses and landscape positions were analysed:(1)five nutrient contents of soil organic matter(SOM),total N(TN),available N(AN),total P(TP) and available P(AP) in hilly area were lower than that in other areas.SOM content was less than 1%,TN content less than 0.07%,and TP fallow land and cropland,and higher level in soil fertility was found in crop-fruit intercropping land among croplands;(3)soil nutrient distribution and responses to landscape positions were variable depending on slope and the location of land use types.     

医疗废物焚烧残余物固化技术初探

根据对医疗废物焚烧残余物中有毒有害物质的化验分析结果,确定焚烧残余物中有毒有害成分含量仍较高,部分指标超出标准值,必须对其进行稳定化/固化处理,避免对土壤及地下水环境造成污染.本文阐述了稳定化/固化处理原理及处理工艺,使医疗废物无害化、减量化和资源化的处理原则得以全面实现.     

环境物质拟除虫菊酯毒理学研究进展

拟除虫菊酯作为一种重要的合成杀虫剂,在人们的生产生活中有着广泛的应用,但同时其毒理学问题也越来越引起人们的注意,许多学者对此进行了深入的研究,在此研究基础上,从对动物的神经毒性、生殖毒性和生理生化毒性三个方面,对拟除虫菊酯的毒理学研究进展作一综述.     

Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

In this study, ultrasound was used to control the membrane fouling online in an anaerobic membrane bioreactor (AMBR). Short-term running experiments were carried out under different operating conditions to explore feasible ultrasonic parameters. The experimental results indicated that when the crossflow velocity was more than 1.0 m/s, membrane fouling could be controlled effectively only by hydrodynamic methods without ultrasound. When ultrasound was applied, an ultrasonic power range of 60–150 W was suitable for the membrane fouling control in the experimental system. The experimental results showed that the membrane fouling was controlled so well that membrane filtration resistance (ΣR) could stay at 5 × 10¹¹ m⁻¹ for more than a week with the crossflow velocity of 0.75 m/s, which equaled the effect of crossflow velocity of more than 1.0 m/s without ultrasound. Translated from Techniques and Equipment for Environmental Pollution Control, 2006, 7(4): 25–29 [译自: 环境污染治理技术与设备]     

土壤中钼的形态分析方法研究

本文对土壤中有效钼的浸取条件进行最佳化，并利用提高灰化温度达到消除浸取剂对石墨炉原子吸收测定钼的影响，方法用于国标样品和武汉市区土壤样品中钼的形态分析，获得满意的分析结果。     

复合诱变菌处理氨氮废水

采用诱变技术对微生物菌种进行了诱变处理，分别研究了紫外线诱变菌、硫酸二乙酯（DES）诱变菌和复合诱变菌对含氨废水的降解性能。结果表明，复合诱变后获得的变异菌株Z5对含氨废水中NH4^ -N的去除率比单独采用紫外线或DES诱变后获得的菌株有明显的提高。混合菌种对化肥行业废水中COD的NH4^ -N的去除率可以达到95%～98%，出水能达到行业一级排放标准。     

大型车车身覆盖件冲压成形特征分析及选材研究

为满足大型车身覆盖件冲压成形要求并实现钢板与零件的对路供应 ,必须在深入解析零件成形特征的基础上 ,确定高应变部位的成形敏感材料参数。在材料力学性能测试和成形极限分析的基础上 ,对侧围外板的冲压成形特征和成形敏感参数进行了分析。结果表明 :侧围外板零件高应变部位的变形方式为胀形 深拉延变形 ,n值和r值为影响侧围外板零件成形的主要材料敏感参数     

加强能力培养, 提高专业水平——论环境类中专的教学改革

介绍了环境保护中专办学２０年来所取得的成绩及其为环保事业的发展做出的积极贡献，并指出存在的问题．为适应环保事业发展的需要，对环保中专在专业设置、课程设置、教学计划和教材建设方面，均提出改革意见