活性污泥缺氧转化1-2-7-三氨基-8-羟基-3-6-萘二磺酸

1—2-7-三氨基-8-羟基-3—6-萘二磺酸（TAHNDS）作为偶氮染料的脱色产物很难被常规的厌氧-好氧染料废水处理工艺所去除。研究了未经驯化的活性污泥对TAHNDS的缺氧转化效果。结果表明，只有在特定的缺氧条件下（ORP在-50～-150mV之间），TAHNDS才能被活性污泥所降解转化。当浓度在10—80mg／L范围内，TAHNDS可在72h内转化93％以上。加入100mg／L的硝酸盐和0．64mmol／L的氧化还原介体蒽醌-2-磺酸钠（AQS）可将40mg／L的TAHNDS的转化时间从84h缩短到36h。光谱及HPLC—MS分析表明，TAHNDS在缺氧条件下主要是通过脱氨基和脱磺酸作用生成已知可好氧生物降解的3，5-二氨基4-羟基萘-2-磺酸。因此，缺氧处理有望作为预处理工艺促进废水中TAHNDS的完全降解。     

厌氧-气浮-UASB-SBR工艺处理酒精废水

介绍了厌氧-气浮-UASB-SBR处理工艺在酒精废水处理工程中的实际应用，分析并总结了工程设计及运行的经验。实践表明，经厌氧-气浮-UASB-SBR的工艺处理后，废水中COD和SS总去除效率分别可达到99．6％和99．8％以上，并可以回收大量的沼气和部分废水回用于生产过程中。该工艺具有运行稳定和处理效率高等优点，为企业带来了良好的经济效益和社会效益。     

浅谈环境监理现场执法中的障碍及其支撑

分析了目前我国环境监理现场执法中存在的主要障碍，提出了加强环境监理现场执法支撑力度的建议。     

活性污泥缺氧转化1-2-7-三氨基-8-羟基-3-6-萘二磺酸简

1-2-7-三氨基-8-羟基-3-6-萘二磺酸（TAHNDS）作为偶氮染料的脱色产物很难被常规的厌氧-好氧染料废水处理工艺所去除。研究了未经驯化的活性污泥对TAHNDS的缺氧转化效果。结果表明，只有在特定的缺氧条件下（ORP在-50~-150 mV之间），TAHNDS才能被活性污泥所降解转化。当浓度在10~80 mg/L范围内，TAHNDS可在72 h内转化93%以上。加入100 mg/L的硝酸盐和0.64 mmol/L的氧化还原介体蒽醌-2-磺酸钠（AQS）可将40 mg/L的TAHNDS的转化时间从84 h缩短到36 h。光谱及HPLC-MS分析表明，TAHNDS在缺氧条件下主要是通过脱氨基和脱磺酸作用生成已知可好氧生物降解的3，5-二氨基-4-羟基萘-2-磺酸。因此，缺氧处理有望作为预处理工艺促进废水中TAHNDS的完全降解。     

氨氮废水物化法处理技术探讨

介绍了吹脱法、气提法、结晶法、化学沉淀法、氯化法、离子交换法6种常用的氨氮废水物化法脱氮处理技术和工程应用情况，并指出了在开发和实施氨氮废水脱氮处理技术（工程）时需要注意的问题。     

气相分子仪测定水质中的汞

气相分子仪目前仅应用于测定水质中的总氮、硝酸盐氮、亚硝酸盐氮、氨氮、硫化物等，为拓宽应用范围，试用于测定水质中的汞取得了较好的结果。实验表明，该方法灵敏度高，检出限为0．002ng，能满足环境分析要求。     

BOT方式应用于我国城市污水治理过程研究

论述了BOT的概念及对我国的意义,引进BOT模式在实施过程中应采取的措施.指出了BOT融资方式用于国内中小城镇污水处理厂的建设、运营、管理,将会加快污水治理的步伐,促进环保产业的发展,提高我国的环境质量.     

Degradation of RPA 202248 [U-14C-phenyl]-α(-(cyclopropylcarbonyl)-2-(methylsulfonyl)-β-oxo-4-(trifluromethyl)benzenepropanenitrile), the Primary Degradation Product of Isoxaflutole,in an Outdoor Aquatic Microcosm System

Abstract

Isoxaflutole, the active ingredient in BALANCE® WDG and BALANCE® PRO corn herbicides and a co-formulant with the herbicide flufenacet in the product EPIC?, is readily degraded in soil and water to RPA 202248 α(-(cyclopropylcarbonyl)-2-(methylsulfonyl)-β-oxo-4-(trifluromethyl)benzenepropanenitrile). Because RPA 202248 is responsible at the molecular level for isoxaflutole's herbicidal activity it is important to understand the environmental behavior of the degradation product. Laboratory studies suggest that RPA 202248 is stable to hydrolysis and photolysis in aqueous systems and hence poses a possible environmental concern. As part of a program of work towards understanding the actual field situation, an outdoor microcosm study was carried out. Over the course of the 29-day study, residues remained predominantly in the aqueous phase. A slow but steady degradation of RPA 202248 was observed leading to the formation of RPA 203328 (2-methylsulfonyl-4-trifluoromethylbenzoic acid), which has no herbicidal activity. The half-life of RPA 202248 was calculated to be 103 days. These findings indicate that aqueous degradation should be considered as a potential route of dissipation when assessing the fate of RPA 202248 in large scale impounded water bodies, such as ponds, lakes, or reservoirs in the Mid-West Corn Belt.     

晚期垃圾渗滤液综合物理化学法改性预处理技术可行性研究

介绍了化学酸性絮凝 催化氧化 中和沉淀综合物理化学技术，改性预处理晚期垃圾渗滤液(BOD／COD≤0.18)实验研究，给出了结果。最终，晚期垃圾渗滤液经综合物理化学技术改性预处理后，BOD／COD显著提高，由难生化(BOD／COD≤0．18)变为较易生化(BOD／COD达0．31)，为其进一步生化达标处理(一级标准)创造了条件。     

内电解-生化工艺处理染料废水研究

采用内电解-生化组合工艺对DCB生产废水进行处理，研究结果表明，当内电解柱进水pH值为4．0～4．5、停留时间为5h，厌氧-好氧池进水pH值为7～8，水力停留时间HRT为8h，能有效地降低水中的苯胺浓度，且处理后的出水COD达到国家Ⅱ级排放标准。     

离子色谱法测定标样中硫酸根含量的测量不确定度评定

通过对离子色谱法测定标样中硫酸根含量的过程研究,分析了该方法测定结果的不确定度来源,并对各不确定度分量进行了评定.     

生态城市研究

简要介绍了国内外生态城市的发展过程及现状。以生态学为理论基础，对生态城市的内涵、目标、主要特征、功能与结构从不同角度作了分析，并总结出城市发展的趋势。以生态城市指标体系的设置原则，构成要素、评价标准和度量方法为重点进行了详细阐述，提出了符合江苏地方特色的生态城市指标体系。在对生态城市定量分析的基础上，对两个市的生态城市现状进行了评价。     

1-2-4酸生产废水资源化技术研究

以萃取—反萃取体系处理萘系染料中间体 1-2 -4酸生产废水 ,通过静态实验和正交实验确定最佳萃取—反萃取工艺条件。 1-2 -4酸生产废水包括 1-2 -4酸母液和 1-2 -4酸氧体废水 ,两种废水的萃余液平均 CODcr<60 0 mg/ L,萃取效率分别达 95 %和92 % ,反萃取效率 10 0 % ,萃取剂可以循环使用 ,有机物浓缩倍数分别为 9～ 10倍和 5～ 6倍 ,该浓缩液可回用。并对 1-2 -4酸生产废水资源化进行了运行费用分析 ,结果表明 ,该工艺有良好的经济效益、社会效益和环境效益     

机械分选-预脱硫处理废铅酸电池

废铅酸电池在提炼过程中产生大量的二氧化硫、铅烟尘等污染物，通过实施“机械分选-预脱硫”，可最大限度地提高回收率，减少对环境的污染，利于环境和经济的协调发展。     

利用垃圾焚烧灰渣制备微晶玻璃

利用上海御桥垃圾焚烧厂的焚烧飞灰为主要原料,通过添加硅镁铝质组分或与焚烧炉渣复合,以TiO2为晶核剂,在实验室研制成功了以透辉石(CaMgSi2O6)为主晶相的微晶玻璃.该体系制备微晶玻璃的最佳工艺条件为熔融温度为1 500℃、30 mm,核化温度730℃、1.5 h,结晶温度880℃、10 h.研究结果表明透辉石为主晶相的微晶玻璃对Pb、Cr和Cd重金属具有很强的稳定束缚能力.     

防止南水北调运河水质被污染的思考

作为南水北调输水明渠的京杭大运河，将成为受水区人民的生命河。因此，对北调的水质如何保证不受其污染，就要对每一个可能产生的污染源采取有效的防治措施。     

In vivo and in vitro metabolism of tobacco-specific nitrosamine, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), by the freshwater planarian, Dugesia japonica

Cigarette smoke is a risk factor for human health, and many studies were conducted to investigate its adverse effects on humans and other mammals. However, since large amounts of cigarette products are produced and consumed, it is possible that tobacco chemicals can end up in aquatic environments through several routes, thus influencing aquatic organisms. In this study, the presence of tobacco-specific nitrosamine (TSNA), 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), in aquatic environment was demonstrated. Since toxic effects on and distribution patterns of tobacco chemicals in aquatic organisms were rarely studied, after results of an acute toxicity pretest were obtained, experiment was conducted to investigate the bioaccumulation pattern of NNK and distribution patterns of its metabolites, mainly 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), in NNK-treated freshwater planarians, Dugesia japonica. Results from in vivo and in vitro studies showed that NNK was readily converted to NNAL through the carbonyl reduction in bodies of NNK-treated planarians. Tissue concentrations of both chemicals increased in time- and dose-dependent manners. Furthermore, we examined the end products of NNK/NNAL α-hydroxylation in NNK-treated planarians, but only 1-(3-pyridyl)-1,4-butanediol was detected, suggesting that NNK metabolism in planarians partially differs from that in mammalian systems. This is the first report on NNK metabolism in an aquatic organism and can be used as a foundation for developing freshwater planarians as a new in vivo model for the study of NNK toxicology in the future.