浅覆土盾构法隧道施工

结合上海地铁二号线某区间隧道上行线的工程实例，介绍了有关参数的理论选定值的确定方法以及地面监测体系的应用，对施工中的疑难问题，提出了解决措施，总结了各项施工技术参数及施工经验。     

ACTIFLO~微砂加重絮凝斜管高效沉淀技术

针对北京市第九水厂原水低温、低浊及高藻的情况和出水要求,综合考虑实际工程情况和远期水质状况,采用ACTIFLO高效沉淀池工艺对该厂二期A处理线沉淀池进行改造,改造后处理能力由原来的25×104m3/d提高到34×104m3/d。调试期间的运行结果表明,ACTIFLO高效沉淀池对密云水库的低浊、高藻原水有稳定且良好的处理效果。     

反应池与沉淀池合建的设计与施工要点

为节省占地和投资，广东四会市某小型供水厂扩建工程将反应池与沉淀池进行了合建。重点介绍了斜管沉淀池的设计参数以及设计、施工所遇问题的解决办法。     

改进型箱式混合澄清器的提钒新工艺中的应用

介绍了一种改进型箱式混合澄清器的结构特点及其在提钒新工艺萃取过程中的应用情况。实际生产运行考察结果表明,该设备完全能满足提钒新工艺的要求并具有效率高、分相快、操作简便、运行稳定、适应能力强等优点。     

斜管沉淀池应用于二沉池的弊端及解决措施

某污水厂因项目用地紧张,二次沉淀池采用斜管沉淀池。在运行中发现,存在斜管管顶积泥严重等弊端,不仅影响了后续的处理工序,而且增加了运行维护的工作量。为此,对相应弊端产生的原因进行了分析,并实施了有效地解决措施,进而使出水水质得到了明显改善。     

钦州港水厂扩建工程设计方案

针对一期常规处理工艺存在的处理效率低、处理能力不能满足要求,且无法适应原水水质季节性变化等问题,二期工程有针对性地对处理工艺进行了改进,采用微涡流絮凝、斜管沉淀、气水冲洗过滤技术用于水厂设施建设,使扩建后的水厂水质有了保证。     

Extraction separation of rare earth with a novel USE extractor

The extraction separation of rare earth with a new USE extractor,using kerosene solution of HEH(EHP) as an extractant was studied.In single stage extractor experiment,the stage efficiencies of the USE extractor were measured.A six-stage USE extractor experiment of separating La and Ce,and funnel cascade experiment of the same process parameters were made.The experimental results showed that the USE extractor had high stage efficiencies,small basal area and big throughput capacity per unit volume coupled with improved operating environment.     

垂直粘结矩形斜管沉淀技术的研究

提出了一种新颖的垂直粘结矩形斜管，其斜管具体有平整的顶面和底面。试验研究表明，它还具有良好的沉淀性能、较大的经济效益和斜管全长均起着固液分离作用－－－起端不存在“由紊流变层流”的过渡段。     

The Micro-Geography of a Home as a Contact Zone: Urban Planning in Fragmented Settler Colonialism

ABSTRACT

This paper provides an analysis of the micro-geography of the village of Lifta, Jerusalem, and the history of one particular home there, applying the archaeology of the address methodology. A new terminology of fragmented settler colonialism is used, in combination with the contact zone concept, to help better understand planning situations ‘after colonial times’. Introducing macro and micro scales of contact zones, the formal texts of the Lifta Regeneration Plan 6036 and the ensuing legal appeals submitted to the Israeli court are analyzed. By also studying the informal contact zone at the micro (address) level, the paradoxical relations between the Mizrahi and the Palestinians are exposed.