污泥的农林处置与利用

污泥的农林处置与利用 ,要解决三个主要问题 :①污泥中重金属能否造成土壤及作物的二次污染 ;②污泥中病原体能否对环境造成影响 ;③氮磷等物质浓度过高能否对地下水造成污染 ,针对这三个问题 ,进行国内外研究工作综述。     

N2O emissions from agricultural soils in the North China Plain:the effect of chemical nitrogen fertilizer and organic manure

ＩｎｔｒｏｄｕｃｔｉｏｎＮｉｔｒｏｕｓｏｘｉｄｅ (Ｎ2 Ｏ)ｉｓａｖｅｒｙｉｍｐｏｒｔａｎｔｇｒｅｅｎｈｏｕｓｅｇａｓｉｎｔｈｅａｔｍｏｓｐｈｅｒｅ.ＩｎｔｅｒｅｓｔｉｎｔｈｅｉｎｃｒｅａｓｅｏｆａｔｍｏｓｐｈｅｒｉｃＮ2 ＯｈａｓｂｅｅｎｒｅｃｅｎｔｌｙｓｔｉｍｕｌａｔｅｄｂｙｔｈｅｕｎｄｅｒｓｔａｎｄｉｎｇｔｈａｔＮ2 Ｏｇａｓｐｌａｙｓａｎｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｔｈｅｃｈｅｍｉｓｔｒｙａｎｄｏｚｏｎｅｌａｙｅｒｄｅｓｔｒｕｃｔｉｏｎｏｆｔｈｅｓｔｒａｔｏｓｐｈｅｒｅ.Ｔｈｅｒａｄｉａｔｉｖ…     

浅析炼油装置区初期污染雨水的处理方法

论述了炼油装置区内污染雨水的来源和处理排放的必要性;介绍了新区采用装置区围堰内全部雨水和罐区初期污染雨水进污水场处理,其它区域雨水利用雨水隔油池进行处理的方法。该方法降低了污水处理费用,安全、经济、可靠。     

淮北矿业集团公司矿井水利用现状及前景

论述了淮北矿业集团公司矿井水利用现状，提出了矿井水污染治理，利用技术和发展前景。对防治煤矿矿井水污染，节约地下水资源提出了具体措施。     

城市污水混凝强化处理中污泥的特性探讨

介绍了城市污水处理过程中产生污泥的特点及分类,目前城市污水化学强化一级处理中化学污泥的特性、处置方法以及资源利用等方面的研究成果.     

碱渣的综合利用发展状况研究

对国内外氨碱法生产的碱渣在建筑工程材料、土壤改良剂和烟气脱硫方面的应用进行了阐述，提出碱渣作为烟气脱硫剂有望成为研究的重点。     

CURVE NUMBER HYDROLOGY IN WATER QUALITY MODELING: USES,ABUSES, AND FUTURE DIRECTIONS1

ABSTRACT: Although the curve number method of the Natural Resources Conservation Service has been used as the foundation of the hydrology algorithms in many nonpoint source water quality models, there are significant problematic issues with the way it has been implemented and interpreted that are not generally recognized. This usage is based on misconceptions about the meaning of the runoff value that the method computes, which is a likely fundamental cause of uncertainty in subsequent erosion and pollutant loading predictions dependent on this value. As a result, there are some major limitations on the conclusions and decisions about the effects of management practices on water quality that can be supported with current nonpoint source water quality models. They also cannot supply the detailed quantitative and spatial information needed to address emerging issues. A key prerequisite for improving model predictions is to improve the hydrologic algorithms contained within them. The use of the curve number method is still appropriate for flood hydrograph engineering applications, but more physically based algorithms that simulate all streamflow generating processes are needed for nonpoint source water quality modeling. Spatially distributed hydrologic modeling has tremendous potential in achieving this goal.     

广西农业干旱及水资源合理开发利用

分析了广西农业干旱形成的原因和干旱的时空分布特征;采用降雨量、受旱面积、有效灌溉面积及年径流量,制定出干旱指数、受旱系数、耕灌比系数和水资源利用系数,并依照上述4项指标将广西划分为3个农业干旱区,对各旱区的气候特点、年径流量和水资源利用情况进行了较为详尽的分析.广西水资源丰富,但利用率较低,因此为了提高广西的水资源利用率,应加强水利建设,推广科学灌溉,加大地下水开采.     

水旱灾害对我国农业及社会经济发展的影响

水旱灾害首先影响到我国农业生产。粮食产量的大幅减产还会波及到整个国民经济及人民生活水平的下降。研究自然灾害不仅要注意因灾损失的自然因素，同时要联系造成灾害的社会、经济、人文因素等诸多方面进行自与非自然因素的综合分析。     

环己烷氧化副产物的综合利用

叙述了环己烷氧化时的副产物－轻质油的组成，性质，以及从中回收正戊醇和氧化环己烯的工业方法，介绍了这2种回收产品的应用及市场前景。