聚酯化纤废水中特征污染物含量与COD的相关性研究

研究了聚酯化纤废水中有机污染物乙醛、乙酸、乙二醇含量与ＣＯＤ之间的相关性，确定了ＣＯＤ与上述特征污染物含量的比值，并测定了它们的氧化率，为企业的生产工艺管理和 保管理提供了基础数据。     

煤气洗涤废水的处理

采用硫酸亚铁沉淀－沉渣回流－次氯酸钠氯化工艺处理ＣＮ＾－含量为４ｍｇ／Ｌ、Ｓ＾２－含量为６ｍｇ／Ｌ的煤气洗涤废水，ＣＮ＾－的去除率可达９５％以上，Ｓ＾２－的去除率近１００％。     

TPA下脚料合成增塑剂DOTP的脱色研究

简要介绍了对苯二甲酸（ＴＰＡ）下脚料合成对苯二甲酸二辛酯（ＤＯＴＰ）的工艺路线，着重探讨了深色ＤＯＴＰ的色泽处理方法，优选出物理－化学法作为最佳脱色方法，并确定了最佳操作条件。该法操作简便，产品收率高达８５．４２％，产品质量符合７０℃级电缆料的要求。     

利用环境系统工程控制氨的流失

介绍了利用环境系统工程原理控制氨流失的方法。采用此法并采取一系列措施后，减少了氨的流失，取得了较好的环境、经济效益。     

试论清洁生产对环境标准体系的影响

探讨了推行清洁生产对环境标准体系的影响，认为我国在工业污染防治战略由“末端治理”转向“生产全过程控制”的过程中，环境标准体系的建立必须与先进的生产工艺、企业的经济效益、企业的环境管理、产品的环境指标、商品流通领域的环境标志相结合，才能适合环境管理的需要。     

龙口褐煤对废水中Cr（Ⅵ）的吸附与还原

进行了以龙口褐煤作吸附剂，还原剂净化铬废水的实验，研究了含铬废水ＰＨ、浓度对褐煤吸附，还原Ｃｒ（Ⅵ）效果的影响，确定了龙口褐煤净化含废水的最佳条件。     

A MIXING MODEL FOR A SEPARATED MECHANICAL AERATION SYSTEM1

ABSTRACT: An input-output method, using a network of ideal continuous stirred-tank and plug-flow tublar reactors, is adopted to analyze residence time distribution data for a separated mechanical aeration system. The usefulness of this modeling concept is enhanced by its simplicity, especially in the presence of a first-order reaction. This facilitates use of the model format for wastewater quality prediction. Moreover, first-order rate constants can also be estimated from the model, if conversions due to the reaction rate are available.     

FLUSHING CHARACTERISTICS OF A MISSISSIPPI DEAD-END CANAL SYSTEM1

ABSTRACT: A study of residential canal system on the Mississippi Gulf Coast and adjacent natural water bodies was conducted to determine the relationship in flushing characteristics between man-made and natural systems. The comparison was based on measurements of temperature, salinity, conductivity, coliform, pH, transparency, biological oxidation demand, dissolved oxygen, bathymetry, tides, water velocity, and Rhodamine dye concentrations. The results indicate that coliform bacteria increase with increasing distance of stations from St. Louis Bay and dissolved oxygen decreases in a similar manner. Biological oxidation demand was low at all stations; showing no differences between natural and man-made systems. The canal system Studied was shallower than adjacent water bodies and water velocities in the canal system are a function of tidal amplitude while velocities in the river are affected by both tides and runoff. The other parameters measured show little or no differences between natural and man-made systems, but reflect overall seasonal changes. Flushing rates between the residential canal systems and an adjacent natural system are equivalent on the basis of decline in dye concentrations measured over a five-day period.     

What Is Source Reduction? A Critique and Comparative Analysis of Polish and American Students

/ Source reduction is recognized as the preferred form of waste management, but its definition is ambiguous. This study proposes four underlying dimensions of the source reduction concept. Source reduction is foremost a preventive activity that reduces the number or extent of environmental impacts. Second, source reduction can prevent both resource consumption and pollution generation impacts. Third, source reduction may be viewed as both a producer and consumer activity. Lastly, it may include frugal and more efficient activities. In surveys exploring these fourdimensions, Polish and American university students evaluated whether 20 activities were examples of source reduction. The American students gave higher ratings to preventive activities over adaptive activities. The Polish students most prominently rated efficient over frugal activities. Factor analysis indicated that both samples identified a group of consumer-based resource conservation activities, with the American students recognizing a cluster of recycling activities. In a separate ranking of environmental protection priorities, the Polish students endorsed pollution prevention, whereas the American students favored both efficient and frugal resource conservation. These findings suggest that the conceptualization of source reduction varies according to contextual factors and that prevention is still an obscure environmental management theme. KEY WORDS: Source reduction; Pollution prevention; Resource conservation; Frugality; Poland     

Guidelines and Techniques for Improving the NEPA Process

/ The Council on Environmental Quality's (CEQ's) principal aims in implementing the National Environmental Policy Act (NEPA) are (1) to reduce paperwork, (2) to avoid delay, and most importantly (3) to produce better decisions that protect, restore, and enhance the environment. This paper presents four strategies for improving the NEPA process along with tools that can be used to implement each strategy. The tools include guidelines for project management and problem definition, tips for acquiring existing information and identifying issues of public concern, worksheets on how to identify and analyze potential impacts on resources, ideas for enhancing NEPA documents, and a NEPA process checklist. The tools can be used at various stages of the NEPA process and provide a toolbox of guidelines and techniques to improve implementation of the NEPA process by focusing the pertinent information for decisionmakers and stakeholders. KEY WORDS: National Environmental Policy Act; NEPA; Environmental impact assessment; Ecosystem management