生物氧化塔的应用

介绍了生物氧化培处理含油污水的装置运行情况．大量数据说明该塔具有操作弹性大，适用范围广，能耗低，脱除率高，不外排过剩的活性污泥等特点，具有广阔的推广应用前景。     

ASMs模型中异养菌减衰系数之间的关系及其测定

国际水协(IAWQ)推出的ASM1、ASM2、ASM2D号模型中描述微生物的衰亡过程采用了死亡-再生模式,而ASM3号模型中描述微生物的衰亡则采用了传统减衰模式,文章从两种减衰模式的机理出发,指出了两者之间的区别与联系,并详细推导了两种减衰模式中各参数之间的关系,以此得出了异养菌传统减衰系数bH'和死亡-再生减衰系数bH的测定计算方法。文中在20℃条件下,对以印染废水为主的实际污水处理厂活性污泥的异养菌减衰系数bH'和bH进行了测定,所得结果分别为0.20和0.50。     

Application of compost in agricultural practice could potentially cause contamination of foodstuffs with pathogenic bacteria such as Escherichia coli O157:H7. This study investigated pathogenic bacteria in compost collected from the compost facilities, an

IntroductionIncreasing public interests have been concerned onsafety foods and the environmental aspects recently,especially on the so-called organic foods , which are madefromcrops grown with organic fertilizers or compost but notchemical fertilizers .Pu…     

关于环境生物技术在水污染治理中的研究与应用

分析了国内外关于微生物遗传学、酶学在环境生物技术领域中的研究进展以及环境生物技术在污水治理学的开发与应用及其发展趋势，为选择实用的污水处理技术提供了参考依据。     

气候变化与实施清洁发展机制的展望

本文第一部分介绍了《气候变化框架公约》的达成与主要内容，以及在柏林、日内瓦、京都与布宜诺斯艾利斯先后召开的４ 次缔约方会议的结果； 第二部分介绍了清洁发展机制（ＣＤＭ） 同《京都议定书》的其他灵活机制的异同，以及ＣＤＭ 的特点、方法学与技术问题； 第三部分分析了ＣＤＭ 的前景、影响其成功实施的因素、它可能提供的潜在机遇以及实施中的需求与供给；最后就ＣＤＭ 的实施作了展望。     

半干法喷射烟气脱硫试验研究

介绍了半干法喷射烟气脱硫试验 ,研究了钙硫比、雾化水量、进口SO2 浓度、湿度等主要因素对脱硫率的影响规律 ,对布袋除尘器的辅助脱硫也进行了研究。结果将有助于改进半干法脱硫技术 ,并为进一步的工业应用提供了参考数据。     

气浮-生物接触氧化集成技术处理受污染水源水研究

针对受污染水源水,采用气浮-生物接触氧化集成技术进行中试研究,考察各影响因素对污染物去除效果的影响,优化工艺参数和运行条件,并进行了冬季低温运行研究.与现有生化-气浮串联工艺比较,处理受污染原水(NH3-N质量浓度为5～7 mg·L-1),集成装置能取得更好的处理效果,而且具有占地小、能耗低等优点.     

Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration methanol Wastewater

In this study, the two-stage upflow anaerobic sludge blanket (UASB) system and batch experiments were employed to evaluate the performance of anaerobic digestion for the treatment of high concentration methanol wastewater. The acid resistance of granular sludge and methanogenic bacteria and their metabolizing activity were investigated. The results show that the pH of the first UASB changed from 4.9 to 5.8 and 5.5 to 6.2 for the second reactor. Apparently, these were not the advisable pH levels that common methanogenic bacteria could accept. The methanogenic bacteria of the system, viz. Methanosarcina barkeri, had some acid resistance and could still degrade methanol at pH 5.0. If the methanogenic bacteria were trained further, their acid resistance would be improved somewhat. Granular sludge of the system could protect the methanogenic bacteria within its body against the impact of the acidic environment and make them degrade methanol at pH 4.5. The performance of granular sludge was attributed to its structure, bacteria species, and the distribution of bacterium inside the granule. Translated from Acta Scientiae Circumstantiae, 2004, 24(4): 633–636 [译自: 环境科学学报]     

间歇式加煤锅炉SO2的定电位电解法测试技术探讨

针对间歇式加煤锅炉SO2的排放特性和平均排放浓度测试，结合两种常用的智能烟气分析仪，列举定电位电解法在实际测试中的应用情况以及不同测试分析仪器的功能性特点，指出当前在实际测试过程中存在的人为随意性和易出现的测试误差，提出消除和减少误差的相应对策。