铁路机车车辆检修企业含油废水的治理

铁路机车检修废水含石油类、COD和悬浮物等污染物，经过“调节沉淀－斜板隔油－气浮－沉淀过滤”工艺处理，出水可达到《污水综合排放标准》一级标准。     

凤眼莲根系分泌物对栅藻结构及代谢的影响

研究了凤眼莲（Ｅｉｃｈｈｏｒｎｉａ ｃｒａｓｓｉｐｅｓ）根系分泌物对栅藻（Ｓｃｅｎｅｄｅｓｍｕｓ ａｒｃｕａｔｕｓ Ｌｅｍｍ）超微结构及生长代谢的影响，结果显示，凤眼莲对栅藻有明显的克生作用，藻的数量逐步减少，栅藻生长受影响后，细胞中绿体片层肿用甚至解体，线粒体嵴消失，质膜、核膜受破坏，光合放氧化速度明显下降，可溶性蛋白折含量四天后４线下降，超氧阴离子（Ｏ２－）、丙二醛（ＭＤＡ）的含量上升，知值都     

《中华人民共和国防震减灾法》执法时效浅析

《中华人民共和国防震减灾法》的实施,为作好防震减灾工作提供了法律依据和保障,标志着我国的防震减灾工作已纳入法制化管理的轨道。加强防震减灾法制建设,依法管理防震减灾工作,是实现防震减灾社会功能的根本保障。在本法律条文中,关于执法时效问题没有明确规定,本文通过对该问题的浅析,希望为本法的修订和防震减灾工作深入开展提供一些参考。     

引燃点火减轻焦炉烟尘污染

土法炼焦，对大气环境污染严重。采用引燃点火无回收焦炉，操作简单，材料省，出焦优质，大大减轻了对大气的污染。本文对引燃点火无回收焦炉的结构及有关问题作了较为详细的叙述。     

城市垃圾填埋场中废气测定方法

本文介绍了城市垃圾填埋场中的废气用注射器采样．经气相色谱热导池检测器测定的方法．该方法具有简单、快速、成本低、准确性高、精密度好等优点，由本方法测得的城市垃圾填埋场废气中甲烷和二氧化碳含量可作为设计沼气回收利用的可靠依据。     

管材的冲切加工

此文系统介绍了管材冲切加工的工艺及模具设计,对常用圆断面管材的各种冲切工艺,如端口平面冲切、型面冲切等进行了探讨;分析了管材冲切加工中存在的主要问题;就如何提高冲切质量提出了行之有效的解决办法。     

Dimethyl phthalate biodegradation by Dunaliella tertiolecta

Dunaliella tertiolecta has an ability to biodegrade dimethyl phthalate(DMP) was found in this study, and the average of the biodegradation rates were 11.3 mg/(L·d) and 30.5 mg/(L·d), and the average of the phthalic acid (PA) production rates were 1.5 mg/(L·d) and 3.6 mg/(L·d), for initial 100 mg/L and 300 mg/L DMP, respectively. The larger amount of accumulation by D. tertiolecta under higher DMP concentration may be responsible for the increase of biodegradation rate, and one of products of DMP biodegradation by D. tertiolecta may be PA. By fitting the process of DMP biodegradation by D. tertiolecta with a kinetic equation newly suggested, the standard deviations between calculated and observed values were 2.5 mg/L and 5.7 mg/L, respectively.     

Level of coordinated development in economy and environment

ＬｅｖｅｌｏｆｃｏｏｒｄｉｎａｔｅｄｄｅｖｅｌｏｐｍｅｎｔｉｎｅｃｏｎｏｍｙａｎｄｅｎｖｉｒｏｎｍｅｎｔＺｈａｎｇＱｉｄｅ，ＷａｎｇＹｕｘｉｕ，ＲｅｎＪｉｎｓｏｎｇＬｉａｏｎｉｎｇＩｎｓｔｉｔｕｔｅｏｆＥｎｖｉｒｏｎｍｅｎｔＰｒｏｔｅｃｔｉｏｎＳｃｉ...     

铜自热熔炼烟气生产焦亚硫酸钠

扼要报道用碳酸钠溶液吸收法处理金川铜自热熔炼烟气生产焦亚硫酸钠的研究成果     

Heavy metal adsorption on the Le An River sediment —The adsorption model

In this study,the surface properties and adsorption properties of the Le An River sediment were modelled via surface complexation approach.The model parameters were determined based on the data of our potentiometric titration experiments and the metal adsorption experiments with the Le An River sediment samples.Consequently,the surface complexation models for the natural sediment,in our case the Le An River sediments,which can interpret the experimental data very well were successfully established.Three typical surface complexation models that is the constant capacitance model,the diffuse layer model and the triple layer model,were considered in this research.This work indicated that the consistency and the interdependency among model parameters together with the selection of the surface adsorbed species should be emphasized.