含铬废渣的综合利用

着重介绍了重庆东风化工厂铬渣综合治理的成效。其中包括该厂已成功应用于工业化生产的铬渣作玻璃着色剂，钙镁磷肥助熔剂，炼铁烧结熔剂等利用途径及其还原解毒机理，以及在水泥等建材方面的应用尝试。     

川西北哲波山微细浸染型金矿床岩浆岩特征

对川西北哲波山金矿区内出露的中 -酸性岩脉、岩株的类型、化学成分、地质特征以及微量元素、同位素、稀土元素等特征进行了研究 ,指出印支晚期和燕山早期的岩浆岩均属钙碱质岩系列 ,均起源于幔壳混源区 ,原始岩浆在成分上和演化上又存在着一定的差异性。岩浆岩为成矿提供了一定的物质基础。     

Graphical strategies for design of evaporation crystallization networks for environmental wastewater applications

This paper introduces graphical strategies for the design of an evaporation/crystallization network for ternary wastewater environmental applications. Sources, sinks and other streams are located on a ternary composition diagram. While a source is any wastewater stream that has the potential to be recycled, a sink is any unit in the process that can accept sources. The proposed methodology is extremely simple to understand and implement, as it only requires basic solid-liquid phase equilibria data and uses lever arm principles to generate alternative process designs. Geometric constructions are carried out on the ternary composition diagram and the respective lever arms are used to determine intermediate flow rates in the evaporation/crystallization network. The relative locations and flow rates of the sources and sinks under consideration, as well as the unique shape of the solid-liquid equilibrium, drive the design of the separation (via evaporation/crystallization) network. Some generic structures are proposed for a typical evaporation and crystallization network. Once the general problem statement has been defined, special cases consisting of a single source-single sink, single source-two sinks and two sources-single sink are described. These special cases are representative of commonly occurring industrial wastewater design problems. Several graphical insights are listed that allow one to represent evaporation and crystallization operations on a ternary triangular composition diagram and avoid mathematical complexity. The possibility of bypassing a part of the initial feed streams is also considered. Certain feasible composition regions are identified on the ternary composition diagram for cases dealing with multiple sources and sinks. The methodology is useful in pre-screening and eliminating certain sources/sinks and is readily applicable to cases with lower number of sources and sinks. A case study involving the ammonium nitrate manufacturing process is included to demonstrate the broad applicability and value of the proposed approach.     

锅炉房噪声的产生与治理

本文分析了锅炉房噪声的产生机理 ,针对各类锅炉房的具体情况 ,提出了“分散控制”和“集中控制”的不同治理方案。其中隔声、消声、隔振、吸声等声学措施的综合利用 ,易收到较好的效果 ,可降噪 2 0dB(A)以上     

金属板料成形摩擦机理研究

对不锈钢板料和碳钢在金属塑性成形时 (高接触压力 )的摩擦机理进行了实验研究 ,分析了压力对滑动阻力和摩擦系数的影响 ,得出了随压力增大摩擦系数逐渐变小的结论 ,从而为应用有限元法进行板料成形过程中塑性变形的计算机模拟提供真实的边界条件打下了基础。     

生物法净化废气中低浓度挥发性有机物的过程机理研究

 针对生物法净化低浓度挥发性有机废气的过程机理研究表明，生物膜填料塔净化低浓度甲苯气体是一个以气膜控制为主的传质过程，其中甲苯的生化降解属于瞬时快速化学反应，即甲苯的生化降解反应速率远远超过甲苯在液膜中的扩散速率，甲苯的生化降解在气液相界面处即可发生，其宏观表现即为甲苯气体直接吸附在润湿的生物膜上后迅速被微生物生化降解。因此，可以从气体吸附理论的新角度去解释生物法净化废气中低浓度挥发性有机物的动力学过程。对于低浓度挥发性有机废气的生物法净化装置的设计与操作而言，凡能改善传质条件、减少气膜阻力的措施均能强化这一生物吸收净化过程。     

阳离子絮凝剂研制

介绍了一种阳离子絮凝剂的研制情况。用该絮凝剂对几种污水进行混凝处理，加药后生成的絮体大，沉降速度快，处理后水清澈度高。同时，用日立Ｈ－３００扫描电镜对絮体形态进行了观察，对阳离子絮凝剂的作用机理进行了初步探讨。     

超临界水氧化技术处理有机废水的研究

超临界水是处理难氧化有机污染物的一种很好媒介,因为在超临界状态下有机污染物和氧化剂能够互溶而加快反应速度,具有去除率高,反应时间短且无污染等特点,因而受到了越来越多的关注。本文主要概述了超临界水氧化的特点、机理、工艺流程和存在的问题,介绍了当前超临界水氧化处理难降解污染物的效果、动力学、催化剂研究等情况,并展望了其应用前景。     

人工湿地净化处理废水的机理探讨与效果研究

主要介绍人工湿地的特点和处理废水的机理,包括人工湿地的类型、构建方式、净化机理与工艺流程等.通过分析人工湿地的应用实例,总结出人工湿地处理废水具有应用广泛、投资低廉、综合效益高的重要特点,提出目前人工湿地存在使用寿命较短并且受环境条件影响大等主要问题,在此基础上讨论了现阶段人工湿地的研究状况并指出人工湿地在污水处理方面仍有广阔应用前景.     

低床层烟炱吸附法脱硫试验及机理探讨

研究了以锅炉烟气沉降物为吸附剂的烟炱吸附法脱除SO2的工艺条件，结果表明该法较适宜的工艺条件为SO2浓度小于2400mg/L,烟气流速小于36m/h，烟气温度低于100℃，此时脱硫效率可达30％以上。初步探讨了烟炱吸附法脱硫的作用机理。