排放绩效法用于沈阳市燃煤电厂二氧化硫总量控制目标研究

介绍排放绩效法在火电企业二氧化硫指标控制方面的应用,根据沈阳市"十一五"二氧化硫总量控制要求制定了排放绩效标准,并利用绩效法对各燃煤电厂二氧化硫总量控制指标进行了测算,提出了总量分配方法。     

清洁生产审核目标设置与Eviews模型

清洁生产审核中目标的设置是完成审核的重要环节之一,但是由于没有定量的手段往往会出现高低偏差,以至影响审核的效果。围绕此问题,本文探讨了借助计量经济软件Eviews对相关数据建立模型,以贵阳特殊钢有限责任公司一炼钢厂钢产量和电耗为例,预测未来电耗情况,结合相应清洁生产方案设置审核的目标。     

SNCR脱硝技术在平湖垃圾焚烧电厂的应用

文章介绍了SNCR脱硝技术原理和在平湖垃圾焚烧电厂(一期)项目上应用情况,对SNCR的工艺和需要注意的问题做出了一些说明。     

秸秆发电环保性能及产业发展前景分析

阐述了秸秆发电技术及国内外秸秆发电产业发展现状.通过秸秆与煤炭对比研究,阐明了秸秆发电的环保性能,结果显示,CO2、SO2、烟尘减排量可观.同时结合国内秸秆电厂运行情况,总结了秸秆发电实际运行中存在的技术问题并对其发展前景进行了展望.     

A dynamic conceptualization of power for sustainability research

This paper takes up the challenge of providing a conceptual power framework to be used in the context of sustainability research. First, challenges of sustainability research are discussed by focusing specifically on recent insights from Integrated Sustainability Assessment (ISA), and on that basis some requirements for concepts to be used in sustainability research are postulated. It is argued that two of the most important aspects of sustainability assessment research are the long-term dynamics of change and an interdisciplinary paradigm. Second, a dynamic power framework is presented that was developed in the context of research on socio-technical sustainability transitions, including the basics of this power framework as well as some empirical illustrations. Third, it is discussed how the presented power framework deals with time, change and long-term dynamics, and how this contributes to the state-of-the-art. Fourth, it is indicated how the power framework integrates interdisciplinary and ‘interparadigmaticatic’ research requirements, and how this contributes to the state-of-the art. In conclusion, the arguments are summarized and some challenges for future research are distilled.     

The implications of planting mode on cadmium uptake and remobilization in rice: Field experiments across growth stages

•Direct seeding (DS) method led to more distributed Cd in aerial parts of rice. •The Cd content was significantly higher in brown rice with planting mode of DS. •Using DS lessened the Fe plaque covering the root surface in all growth stages. •Transplantation mode should be considered as a priority in Cd-contaminated areas. Global rice production practices have gradually changed from a reliance on transplanting to direct seeding. Yet how this shift may alter cadmium (Cd) accumulation in rice is poorly known. Here we conducted field experiments with two rice genotypes cultivars that were planted using three methods: via direct seeding (DS), seedling throwing (ST), and manual transplanting (MT). Rice samples were collected during four growth stages. The formation and distribution of iron plaque were analyzed using DCB (dithionite-citrate-bicarbonate) extractions and observed under micro-XRF (micro X-ray fluorescence). The results revealed that, in each growth stage, DS rice was more apt to harbor Cd distributed in the plant’s aerial parts, and the Cd concentration of brown rice from DS was 21.8%–43.3% significantly higher than those from ST and MT at maturity stage (p<0.05). During the vegetative stages, the Cd uptake percentage was higher in DS than MT rice, and those plants arising from the DS method were capable of absorbing more Cd earlier in their growth and development. Conversely, using DS decreased the amount of iron plaque covering the root surface in every growth stage, especially in the critical period of Cd accumulation, such that the roots’ middle areas were distinguished by a near-complete absence of iron plaque, thus weakening its role as an effective barrier to Cd uptake from soil. Collectively, this study demonstrated that implementing the DS mode of planting will increase Cd’s distribution in the aboveground parts of rice, and heightening the risk of Cd contamination in grain.     

小龙潭电厂脱硫工艺的探讨

介绍了国外几种成熟的脱硫工艺，通过分析与比较并结合小龙潭电厂的实际情况，最终选择烟气循环流化床半干法作为该电厂褐煤锅炉的脱硫工艺。     

大港发电厂温排水对附近海域浮游动物影响研究

分别于2010年夏、冬季对大港发电厂温排水口附近海域浮游动物进行调查。结果表明:调查区浮游动物以桡足类和幼虫类占优势,群落结构相对稳定,但丰度明显低于渤海湾其他海区,种类组成、丰度和多样性指数具有夏季高于冬季、近岸低于远岸的时空变化特征。临近温排水口的TJHS1117站位的浮游动物群落物种数、丰度及多样性等在6个调查站位中都处于最低,可见温排水对浮游动物群落结构及平面分布有一定的影响。     

火电厂煤尘污染防治主要措施研究

文章通过对火电项目煤尘产生源的分析,根据北方地区社会、经济、环境现状,提出电厂储煤场及输煤系统煤尘的主要防治措施,从而为北方经济欠发达地区火电厂的煤尘污染防治提供一些参考依据,促进环境质量的改善.     

中国电力工业大气二氧化硫污染及其控制

研究中国电力工业大气ＳＯ２的污染状况及发展趋势、危害及原因，分析中国电力工业大气ＳＯ２污染控制技术。