废水中有机物生物降解性数据库系统的研究

在全面分析废有机物生物降解性数据库系统的需求状态及特点的基础上,采用软件工程的方法,面向用户完成了该数据系统的系统分析和系统设计,为系统的进一步全面实施奠定了基础。     

城市功能区夜间噪声等效声级（Ln）预测模型的建立

根据夜间噪声的变化规律和等效声级的计算特点，对建立城市功能区夜间噪声等效声级的预测模型进行了初步探讨。     

汕头港水域温排水热扩散的三维数值模拟

本文建立了汕头港水域温排水扩散的三维数学模型，并采用特征差分方法求其解，对该法在三维情况下的稳定作了推导，给出了判断公式，上述模型被应用于汕头热电厂废热水排放的环境影响评价中，实例计算表明，该模型算法程序简单，计算结果合理。     

氚水在模拟水稻田中的消长动力学(续)

对进入水稻田中的氚水在连作晚稻阶段的迁移，输运动态过程的研究表明，滞留于早稻田中的氚水继续为晚稻摄取；与早稻情况一样，氚水中的氚仍以自由水氚和结合氚形式滞留在晚稻田各分室中，晚稻田水中和土肿的氚浓度均随时间单调地减少；晚稻地上部及根中的自由水氚及结合态氚浓度在采样期间也基本上随时间降低。     

Ecological-breaking zone originates and its ecosystems reconstruction in arid area

Ｅｃｏｌｏｇｉｃａｌ－ｂｒｅａｋｉｎｇｚｏｎｅｏｒｉｇｉｎａｔｅｓａｎｄｉｔｓｅｃｏｓｙｓｔｅｍｓｒｅｃｏｎｓｔｒｕｃｔｉｏｎｉｎａｒｉｄａｒｅａ￥ＨｕａｎｇＰｅｉｙｏｕ；ＬｕＺｉｌｉ（ＢｉｏｌｏｇｙＤｅｐａｒｔｍｅｎｔｏｆＸｉｎｊｉａｎｇＵｎｉｖｅ...     

工业废气中甲苯的生物降解研究

采用生物膜填料塔进行净化低浓度甲苯废气的研究结果表明，构成生物膜的假单胞菌属中的短杆菌对废气中甲苯有很强的生化降解能力，每升体积的生物膜填料对甲苯的生化去除量最大可达１０４．４ｍｇ／ｈ，且当入口气体甲苯浓度约低于２．０ｍｇ／Ｌ时，单塔净化效率可保持在８０％以上。反应级数的转换约在其液相浓度为０．８—１．２ｍｇ／Ｌ（相当于气相浓度约１．７—２．１ｍｇ／Ｌ）时发生。     

生物膜填料塔净化有机废气研究

为在国内开展生物化学法净化低浓度有机废气的研究工作,采用国内现有微生物菌种挂膜接种的生物膜填料塔净化低浓度甲苯废气,结果表明,在入口气体甲苯浓度0.183～1.803mg/L及气体流量86.4～190.8L/h（停留时间6.2～13.6s）的实验范围内,增加入口气体甲苯浓度和气体流量,可使甲苯的生化去除量增大,每升体积的生物膜填料对甲苯的生化去除量最大可达157.13mg/h。由实验结果推断,生物膜填料塔对废气中甲苯的净化去除过程属于传质控制过程。对比结果表明,本研究建立的动力学模式对实际过程有很好的适用性,计算值与实验值之间的相关系数R＝0.98。     

湖泊沉积物－水界面的HCO_3~－地球化学研究

为了解沉积物－水界面作为水体ＨＣＯ_３~－的源还是汇，选择云南洱海和泸沽湖两个湖泊，通过界面精细剖面和平衡计算，揭示了ＨＣＯ_３~－在界面的地球化学行为。结果表明，界面作为ＨＣＯ_３~－的源，并非汇，通过沉积物和水相互作用可以影响上覆水体的酸碱平衡关系。     

A Recourse‐Based Interval Fuzzy Programming Model for Point‐Nonpoint Source Effluent Trading under Uncertainty

In this study, a recourse‐based interval fuzzy programming (RIFP) model is developed for tackling uncertainties expressed as fuzzy, interval, and/or probabilistic forms in an effluent trading program. It can incorporate preregulated water‐pollution control policies directly into its optimization process, such that an effective linkage between environmental regulations and economic implications (i.e., penalties) caused by improper policies due to uncertainty existence can be provided. The RIFP model is applied to point‐nonpoint source effluent trading of the Xiangxi River in China. The efficiency of trading efforts between water quality improvement and net system benefit under different degrees of satisfying discharge limits is analyzed. The results are able to help support (1) formulation of water‐pollution control strategies under various economic objectives and system‐reliability constraints, (2) selection of the desired effluent trading pattern for point and nonpoint sources, and (3) generation of tradeoffs among system benefit, satisfaction degree, and pollutant mitigation under multiple uncertainties. Compared with the traditional regulatory approaches, the results demonstrate that the water‐pollution control program can be performed more cost‐effectively through trading than nontrading.     

Atmospheric-particulates-bound mercury Hg(p) study at five characteristic sampling sites in Taiwan

The main purpose for this study is to observe the seasonal and month variations for particulates-bound mercury Hg(p) in total suspended particulates (TSP) concentration, dry deposition at five characteristic sampling sites during years of 2009-2010 in central Taiwan. The results show that the highest and lowest monthly average particulates-bound mercury Hg(p) concentrations in TSP were occurred in Dec. and Oct. at Gao-mei (wetland), Chang-hua (downtown) and He-mei (residential) sampling site. In addition, the results show that the highest and lowest monthly average particulates-bound mercury Hg(p) dry deposition was occurred in Feb. and Oct. at Quan-xing (industrial) sampling site. This study reflected that the mean highest particulates-bound mercury Hg(p) concentrations in TSP and mean highest particulates-bound mercury Hg(p) dry deposition were occurred at Gao-mei (wetland) and Quan-xing (industrial). However, the mean lowest particulates-bound mercury Hg(p) concentrations in TSP and mean lowest particulates-bound mercury Hg(p) dry deposition were also occurred at Gao-mei (wetland). Regarding seasonal variation, the order of mean-particulates-bound mercury Hg(p) concentrations in TSP in winter and spring were Gao-mei (wetland) > Quan-xing (industrial) > Bei-shi (suburban/coastal) > Chang-hua (downtown) > He-mei (residential). Finally, the order of mean-particulates-bound mercury Hg(p) dry deposition in fall, spring and summer were Quan-xing (industrial) > Bei-shi (suburban/coastal) > Chang-hua (downtown) > He-mei (residential) > Gao-mei (wetland).