建设低碳城市实现经济与环境双赢的思路

论述了发展低碳经济成为时代的必然,我国城市发展模式必须树立经济与环境融合的思维模式,依靠科技进步转变经济发展的模式,由出口导向型向消费拉动型的模式转变等。     

污泥陶粒流离球填料的应用研究

填料是流离生化技术处理污水的关键材料。文中模拟试验污水处理过程,测试污泥流离球填料的挂膜情况和污染物去除能力。确定运行适应性参数DO水平为4～5mg/L,水力停留时间4h,反应温度22℃,反应pH值7～9时,实施处理配制污水试验的结果表明,净化后污水CODcr和NH3-N去除效果良好,污水净化后符合国家"污水综合排放标准"二级标准的要求,污泥陶粒流离球填料应用于污水处理可行。     

实施精细化管理 促进排污费征收

论述了在国家排污费征收新条例实施后,淮安市在加强排污费征收的精细化管理方面所做的有益探索性方面的工作。     

浅谈齐齐哈尔市的生态环境问题与改善途径

着重论述了齐齐哈尔市生态环境存在的八个问题与改善生态环境的六个创新。     

五大连池中细菌总数与理化指标的关系初探

本文于对黑龙江省五大连池六个采样点2010年不同季节的水样进行分析,用稀释平板法测定细菌总数,碘量法测定DO值,然后时细菌、DO值及pH值的季节变化和它们之间的相互关系进行初步研究。     

Bioaccumulation of hexachlorobenzene in Eisenia foetida at dierent aging stages

The impacts of contact time on the extractability, the availability of hexachlorobenzene (HCB) in dierent soils (paddy soil, red soil, and uvo-aquic soil) and bioaccumulation in earthworm Eisenia foetida were investigated under controlled conditions in laboratory. Results indicated that the aging rate of HCB displaying a biphasic character in dierent soils: a rapid aging in the first 60 d followed by a slow aging in the next 120 d incubation time. Moreover, most of extractable HCB (about 90%) decline occurr...     

Efficient degradation of lube oil by a mixed bacterial consortium

A laboratory study was performed to assess the biodegradation of lube oil in bio-reactor with 304# stainless steel as a biofilm carrier. Among 164 oil degrading bacterial cultures isolated from oil contaminated soil samples, Commaonas acidovorans Px1, Bacillus sp. Px2, Pseudomonas sp. Px3 were selected to prepare a mixed consortium for the study based on the efficiency of lube oil utilization. The percentage of oil degraded by the mixed bacterial consortium decreased slightly from 99% to 97.2% as the concentration of lube oil was increased from 2000 to 10,000 mg/L. The degradation of TDOC (total dissolved organic carbon) showed a similar tendency compared with lube oil removal, which indicated that the intermediates in degradation process hardly accumulated. Selected mixed bacterial consortium showed their edge compared to activated sludge. Scanning electron microscopy (SEM) photos showed that biofilms on stainless steel were robust and with a dimensional framework constructed by EPS (extracellular polymeric substances), which could promote the biodegradation of hydrocarbons. The increase of biofilm followed first-order kinetics with rate of 0.216 μg glucose/(cm2·day) in logarithm phase. With analysis of Fourier transform infrared spectroscopy (FT-IR) and gas chromatography-mass spectrometry (GC-MS) combined with removal of lube oil and TDOC, mixed bacterial consortium could degrade benzene and its derivatives, aromatic ring organic matters with a percentage over 97%.     

盘锦芦苇湿地生态系统演替的能值分析

采用奥德姆能值分析理论和方法,以辽宁省盘锦芦苇湿地为例,对1968～2008年间芦苇湿地生态系统演替进行评价分析。提出了优化和保护芦苇湿地生态系统结构的方略,以达到保护芦苇湿地,促进湿地资源有效利用和可持续发展的目的。     

基于能源结构的IGT模型对CO2排放量的研究

将能源结构指标Es引入到IGT模型中,并用模糊矩阵对Es进行计算,同时,采用马尔可夫模型对湖南省能源结构进行预测,结果显示:到2020年,湖南省煤、石油、天然气、水电在一次能源消费中的占比为:54.75%:10.75%:2.75%:26.24%;在此能源结构的基础上,用基于能源结构的IGT模型对湖南省CO2排放量进行预测,预测结果显示:2020年湖南省CO2排放量为48 787.23万吨,是2010年的1.51倍,但其单位GDP的CO2排放量仅为1.19吨/万元,比2010年下降41.6%;2020年因能源结构优化而减排的CO2量为7 049.79万吨,占当年CO2排放总量的14.45%。此外,当湖南省单位GDP年均节能率达到7.8%左右时,其CO2排放量将维持2010年的水平不变,从而实现经济增长和CO2排放量的脱钩。     

牡丹江市土壤环境质量状况研究

通过测定牡丹江市土壤中13种重金属元素以及3种有机物含量,计算单项污染指数并对土壤污染程度进行分级.结果表明,牡丹江市土壤未受明显污染.