沈阳市汽车排气检测情况及有关问题探讨

本文对沈阳市４条检车线汽车排气的检测情况做了简单介绍，并把测试数据进行了概括分析，根据实践经验提出限制汽车污染物排放的几项建议．     

Graphitized Cu-β-cyclodextrin polymer driving an efficient dual-reaction-center Fenton-like process by utilizing electrons of pollutants for water purification

Excessive consumption of energy and resources is a major challenge in wastewater treatment. Here, a novel heterogeneous Fenton-like catalyst consisting of Cu-doped graphene-like catalysts (Cu-GCD NSs) was first synthesized by an enhanced carbothermal reduction of β-cyclodextrin (β-CD). The catalyst exhibits excellent Fenton-like catalytic activity for the degradation of various pollutants under neutral conditions, accompanied by low H₂O₂ consumption. The results of structural characterization and theoretical calculations confirmed that the dual reaction centers (DRCs) were constructed on Cu-GCD NSs surface through C-O-Cu bonds supported on zero-valent copper species, which play a significant role in the high-performance Fenton-like reaction. The pollutants that served as electron donors were decomposed in the electron-poor carbon centers, whereas H₂O₂ and dissolved oxygen obtained these electrons in the electron-rich Cu centers through C-O-Cu bonds, thereby producing more active species. This study demonstrates that the electrons of pollutants can be efficiently utilized in Fenton-like reactions by DRCs on the catalyst surface, which provides an effective strategy to improve Fenton-like reactivity and reduce H₂O₂ consumption.     

污染物排放量预测与分析

对齐齐哈尔市经济发展和主要污染物排放趋势进行了预测,并对面临的环境压力、环境质量主要问题和影响环境质量的污染原因进行了分析。该文对为我市各级政府和环境管理部门的决策提供科学依据。     

Estimate of sea loading by pollutants originating from the littoral counties in the Republic of Croatia

The paper reviews the data of 10 yr of following up sewage (waste water) inflows of anthropological origin into the sea from all the coastal settlements in Croatia. In particular, we report the sea loading by biochemical oxygen demand (BOD₅), expressed by the inhabitant equivalent (I.E.), for seven littoral counties. We estimated the loading of a coastal sea area for each county separately. The objective was to avoid any over- or underestimation of amounts and significance of sewage inflows into the seawater. For this purpose, a precisely determined sea volume up to the 10 m isobath has been chosen. Because of the inadequate treatment of wastewater, the total loading of that maritime territory expressed in terms of i.e. was found to be 26% higher than expected from the actual number of inhabitants. However, daily input represents only 12‰ of the considered volume of the sea. Recipient spent only 0.7% of the disposable oxygen quantity in the sea.     

我国主要污染物排放强度区域特征分析研究

文章以我国2012年化学需氧量、氨氮、二氧化硫、氮氧化物、烟粉尘和工业固体废物等6种主要污染物的综合排放量与工业排放量数据为依据,应用层次分析赋权方法,测算了不同省份的综合污染值,对我国的污染物综合排放情况进行了评价分析。并与2005年相关研究成果进行了对比分析,找出了我国在污染物排放、治理方面取得的成果与存在的问题,针对我国不同区域的地域、经济、产业等特征要素提出了相应的政策建议。     

污染物排放总量预算管理制度框架设计

从我国污染减排形势及实际环境管理需求出发,分析了实施污染物排放总量预算管理制度的意义,明晰了这项制度的定义及实施的理论基础,并从国家层面首次提出了污染物排放总量预算管理制度的适用范围、总体框架、基本原则、实施技术方法及管理方法。