深圳市垃圾及其处理的研究

深圳市是中国广东省沿海近１７年发展起来一座现代城市。问题相当突出。其中以垃圾问题的解决的解决难度最大。处理垃圾采用填进地和焚烧方法。按１９９５年计，总量４４５８８８ｔ／ａ，其中直埋量占８６．６３％，焚烧量占１６．３７％，根据我们的研究，这两种方法均在较大问题。现正研究解决这些问题的途径     

原子吸收光谱在石化领域的应用

简述了近十几年来原子吸收光谱在我国石油化学工业领域的应用及进展，全文分原油及其加工产品，化工物品，催化剂添加剂等几类样品阐述。     

后所煤矿矿井水处理与利用

云南后所煤矿始建于1969年,建有四对生产矿井,设计生产能力0.95Mt/a,矿井涌水量达3.3Mm~3/a,这些矿井水如直接外排,不仅污染了环境,同时也浪费了水资源。后所煤矿近几年抓矿井水的处理利用,取得了很好的效果。     

重庆市主要公共集会场所、交通道路和风景旅游区环境空气质量的研究

通过对满足选点标准的5个调查点和7个空气质量质控对照点，一年四个季度每季度抽样5d以上连续自动监测环境空气质量的科研性监测方式，共获取各类有效数据约20万个，从而以定量的方式确定了重庆市主要公共集会场所，交通道路和风景旅游区的环境空气质量水平。     

Coagulation of micro-polluted Pearl River water with IPF-PACIs

Water samples collected from early March 2001 to the end of April 2002 at the branch of Pearl River around the Guangzhou City were analyzed for its micro-polluted characteristics. The coagulation behavior of polyaluminum chlorides(PACIs) was then examined focusing on the effect of primary water quality and speciation distribution. The results showed that PACIs exhibit better coagulation efficiency than alum in accordance with the different speciation.The turbidity removal property of PACIs is evidently better than alum at low dosage. While in neutral zone(about 6.5--7.5), the turbidity removal of PACIs decreases owing to the restabilization of particles at higher dosage. The organic matters in raw water exhibit marked influence on coagulation. In acidic zone, organic matters complex with polymer species and promote the formation of flocs. With an increase in pH, the complexation of organics with polymer species gradually decreases, and the removal of organics mainly depends on adsorption. The effect is evidently improved with the raise of B value.     

Cardiac blood flow studies in fetuses with haemoglobin bart's disease

Blood flow across the atrioventricular valves and outflow tracts was measured in 55 normal fetuses and 32 fetuses with haemoglobin (Hb) Bart's disease between 18 and 26 weeks of gestation. The mean velocities remained unchanged in both normal and affected fetuses over the gestations studied. The volume flow across both atrioventricular valves and outflow tracts increased as the gestation advanced in both normal and affected fetuses, but was significantly higher in affected than in normal fetuses. The same magnitude of increased flow was found in both hydropic and non-hydropic fetuses with Hb Bart's disease. These findings suggest that fetuses with severe and long-standing anaemia have a remarkable cardiac compensatory mechanism for the maintenance of tissue oxygenation. In response to anaemia and circulatory loading, the cardiac chambers and outflow tracts enlarge proportionately up to twice the normal values. Because of this response and the operation of the Frank-Starling mechanism, the heart is able to maintain a normal mean velocity of propulsion and the net output is increased to two to three times that in normal fetuses. Hydropic changes in these anaemic fetuses appear unrelated to cardiac failure as cardiac failure is not observed at the time that hydropic changes develop.     

Interaction of PACIs with sulfate

This article discusses the influential factors on Al13 separation considering the interaction of sulfate with various polyaluminum chloride (PACI). The experimental results showed that the basicity (B = [OH]/[Al]), the concentration of PACI and Al/SO4 ratio exhibited significant roles in the PACI-sulfate reaction. It indicated that different species in various PACI underwent different reaction pathway with sulfate. The Alc, colloidal species,formed precipitation quickly with sulfate, while Alb, oligomers and polymers, underwent slow crystallization. And Ala,monomers, reacted with sulfate to form soluble complexes. The kinetic difference of reaction made it possible to realize the separation of Alb and further purification. The decrease of Ala resulted in the limit of ferron method wasalso mentioned.     

长江水域强制铺设围油栏的必要性和实施对策

针对长江干线推行强制铺设围油栏工作中存在的问题，提出这项工作的必要性以及解决的对策。     

西昌邛海水质现状调查分析

四川西昌的邛海水体中浮游植物群体组成以硅藻、绿藻及鼓藻为主，据1986～1991年连续监测结果表明，邛海水质总体处于贫营养状况，仅局部有富营养性藻类出现。     

土壤汞的地球化学行为及其污染的防治对策

综述了土壤汞的来源 ,以及汞在土壤中的迁移方式、转化模式和富集行为 ,并介绍了当前几种土壤汞污染的防治对策 ,重点讨论了改进农耕技术、减少人为活动向大气的排汞量、生物修复以及电解法等方法 ,最后对土壤汞的研究方向进行了展望。