建设项目环境影响评价区域限批管理办法(试行)(征求意见稿)

环境保护部办公厅函环办函〔2008〕283号第一条[目的]为规范环境保护部建设项目环境影响评价限批工作,根据《国务院关于落实科学发展观加强环境保护的决定》、国务院《节能减排综合性工作方案》和国家有关政策,制定本办法。第二条[适用范围]本办法适用于环境保护部在一定期限内暂停审批有关区域内建设项目环境影响评价文件的工作。环境保护部在一定期限内暂停审批特定企业集团或者排污单位建设项目环境影响评价文件的工作,也适用本办法。第三条[信息公开]环境保护部建设项目环境影响评价限批工作实行全过程信息公开,接受社会监督。第四条[区域限批]有下列情形之一的区域,环境保护部可以暂停审批该区域建设项目环境影响评价文件:(一)对污染物排放超过总量控制指标的区域,暂停审批该区域内新增该污染物排放总量的建设项目;(二)对生态破坏严重或者尚未完成生态恢复任务的区域,暂停审批该区域内对生态有较大影响的建设项目;(三)对城市污水集中处理设施及其配套管网建设严重滞后、已建成污水处理设施但无正当理由不运行、不落实污水处理收费相关政策的区域,暂缓审批该区域内新增水污染物排放总量的建设项目;(四)对未按期完成重点污染物总量削减目标责任书确定的烟气脱硫项...     

污染河流悬沙与铜、锌污染相关性研究

通过对矿区选矿废水污染的河流水样和悬沙进行采样,分析悬沙、铜、锌质量浓度,探讨河流悬沙与铜、锌之间的相关关系,是有重要现实意义的.研究结果表明:河流水质铜超标严重,丧失了作为农业用水的使用功能.水中铜污染物量与悬沙量相关关系,锌污染物量与悬沙量相关关系都是极显著的.经过曲线回归方程拟合,锌污染物量与悬沙量之间的回归关系比铜污染物量与悬沙量之间的回归关系显著,有3个曲线方程较优,即:对数方程、二次多项式方程、三次多项式方程.据此,通过测定污染河流悬沙量可以粗略地估算水中锌污染物量.     

1991～2007年昆明市工业污染物排放状况分析与研究

通过对1991～2007年间昆明市工业污染物排放状况的分析,对未来污染物排放进行了预测,提出了降低工业污染物排放的几点对策。     

Evaluation of mercury speciation and removal through air pollution control devices of a 190 MW boiler

Air pollution control devices (APCDs) are installed at coal-fired power plants for air pollutant regulation. Selective catalytic reduction (SCR) and wet flue gas desulfurization (FGD) systems have the co-benefits of air pollutant and mercury removal. Configuration and operational conditions of APCDs and mercury speciation a ect mercury removal e ciently at coal-fired utilities. The Ontario Hydro Method (OHM) recommended by the U.S. Environmental Protection Agency (EPA) was used to determine mercury speciation simultaneously at five sampling locations through SCR-ESP-FGD at a 190 MW unit. Chlorine in coal had been suggested as a factor a ecting the mercury speciation in flue gas; and low-chlorine coal was purported to produce less oxidized mercury (Hg2+) and more elemental mercury (Hg0) at the SCR inlet compared to higher chlorine coal. SCR could oxidize elemental mercury into oxidized mercury when SCR was in service, and oxidation e ciency reached 71.0%. Therefore, oxidized mercury removal e ciency was enhanced through a wet FGD system. In the non-ozone season, about 89.5%–96.8% of oxidized mercury was controlled, but only 54.9%–68.8% of the total mercury was captured through wet FGD. Oxidized mercury removal e ciency was 95.9%–98.0%, and there was a big di erence in the total mercury removal e ciencies from 78.0% to 90.2% in the ozone season. Mercury mass balance was evaluated to validate reliability of OHM testing data, and the ratio of mercury input in the coal to mercury output at the stack was from 0.84 to 1.08.     

生态文明评价指标体系研究

<正>当前,对生态文明的研究大多停留在理论层面。其实回顾一下十七大对生态文明的闸述——"要建设生态文明,基本形成节约能源资源和保护生态环境的产业结构、增长方式、消费模式,循环经济形成较大规模,可再生能源比重显著上升,主要污染     

Effects of sterilization treatments on the analysis of TOC in water samples

Decomposition experiments conducted with and without microbial processes are commonly used to study the effects of environmental microorganisms on the degradation of organic pollutants.However,the effects of biological pretreatment (sterilization) on organic matter often have a negative impact on such experiments.Based on the principle of water total organic carbon (TOC) analysis,the effects of physical sterilization treatments on determination of TOC and other water quality parameters were investigated.The results revealed that two conventional physical sterilization treatments,autoclaving and 60 Co γ-radiation sterilization,led to the direct decomposition of some organic pollutants,resulting in remarkable errors in the analysis of TOC in water samples.Furthermore,the extent of the errors varied with the intensity and the duration of sterilization treatments.Accordingly,a novel sterilization method for water samples,0.45 μm micro-filtration coupled with ultraviolet radiation (MCUR),was developed in the present study.The results indicated that the MCUR method was capable of exerting a high bactericidal effect on the water sample while significantly decreasing the negative impact on the analysis of TOC and other water quality parameters.Before and after sterilization treatments,the relative errors of TOC determination could be controlled to lower than 3% for water samples with different categories and concentrations of organic pollutants by using MCUR.     

Characteristics of contaminants in water and sediment of a constructed wetland treating piggery wastewater e uent

Constructed wetland (CW) is the preferred means of controlling water quality because of its natural treatment mechanisms and function as a secondary or tertiary treatment unit. CW is increasingly applied in Korea for secondary e uent of livestock wastewater treatment. This study was conducted to recognize the characteristics of contaminants in the accumulated sediment at the bottom soil layer and to reduce the phosphorus release from sediments of the free water surface CW for the treatment of secondary piggery wastewater e uent from a livestock wastewater treatment facility. The results revealed that the dominant phosphorus existence types at near the inlet of the CW were non-apatite phosphorus (59%) and residual phosphorus (32%) suggesting that most of the particles of the influent are made up of inorganic materials and dead cells. Sediment accumulation is important when determining the long-term maintenance requirements over the lifetime of CW. Continuous monitoring will be performed for a further assessment of the CW system and design.     

环境税国际经验及对中国启示

环境税的国际比较 环境税制体系归纳 发达国家大多已开征专门的环境税种,虽征收对象与方法不尽相同,大体上可以总结为污染排放税、能源消费税、机动车税和资源税等.     

纳米二氧化锰制备及在环境治理方面应用的研究进展

二氧化锰(MnO2)是一种重要的两性过渡金属氧化物,在工业生产和环境治理中有着广泛的应用.本文讨论了近年来国内外纳米MnO2材料合成的研究进展,如水热合成法、有机一水两相反应法、共沉淀法、回流冷却法、凝胶-溶胶法及热分解法等.对MnO2在有机污染物的吸附降解、处理含Cd、Pb和As等重金属废水方面的应用做了介绍.     

"冷焦水密闭循环处理染物分离技术"被攻克

华东理工大学机械学院课题组针对冷焦废水系统的流量及组成波动剧烈、压力由高到低周期性变化、废水与废气交织等特点,设计多级降温冷凝机械组合梯级污染分离污染物组分机械纯化的一套集成装置,将冷焦系统中VOC（挥发性有机物）气体-水-焦粉-重油这种混合物分离为油、水、焦3部分,并分别回收利用,实现废水治理与废气治理耦合、污染物治理与废弃资源循环利用协调、经济效益与生产清洁结合,解决冷焦废水、废气污染问题。