氢氧同位素交换动力学及其地质意义

氢氧同位素交换动力学是同位素地球化学学科的前沿。它使同位素地球化学的研究由静态向动态、定性向定量、封闭体系向开放体系发展 ;为各种天然地质过程的研究定量提供有关的时间、温度、作用机制、演化途径及地质体的冷却史等重要信息。本文概述了氢氧同位素交换动力学参数、同位素交换动力学模式、在地学研究中的应用及实验测试新技术等。     

双循环流化床烟气悬浮脱硫技术工业化试验研究

在一台75t/h电站燃煤锅炉上，设计建造了基于双循环流化床烟气悬浮脱硫技术工艺的脱硫装置，烟气处理量为140000m^3/h，该脱硫装置主要特征是循环灰采用两经分离，内外双重循环方式和石灰浆液采用多层喷浆方式。介绍了该装置的系统组成、工作原理、工艺流程、工业化实验结果。实际表明：当Ca/S=1.3,△T=10℃时，脱硫效率达90%；固体颗粒物的循环使脱硫效率提高15%左右。     

江西南部鹤仔片麻状花岗岩类Pb-Pb同位素年龄及地质意义

江西南部鹤仔一带的片麻状花岗岩体是在武夷山西南坡江西境内发现的最古老的片麻状花岗岩体.选取晶形好,无磁性锆石进行了Pb-Pb同位素年龄测定,获得片麻状黑云母二长花岗岩体1848±20Ma、1774±20Ma,片麻状花岗闪长岩体为996±29Ma.它对进一步认识该区"中条"至"晋宁"期岩浆活动构造背景,中深变质岩时代确定等具有一定的意义.     

高岭土矿成因分类的氢氧同位素证据

本文论述了氢、氧同位素作为高岭土矿成因类型地球化学指标的意义.根据氢、氧同位素数据,我国浙闽沿海地区高岭土矿床主要可分为热液蚀变型和风化作用型两大类.其成矿溶液以大气降水为主.     

海洋环境中氧同位素示踪物技术

本文简要地介绍了在环境海洋学中的氧同位素示踪物技术，它有望成为大洋环流研究中一种新的可靠方法。以热带西太平洋和东海黑潮区等为例，文章对运用氧同位素示踪物技术以及氧同位素与盐度的相羞生描述海流的输运过程、水平和垂直扩散过程以及水团特征和混合过程等问题加以阐述。     

直通型精细深拉深小件的统一研究--深拉深实验平台

根据直通型精细深拉深小件的工艺特点,提出并实现了一个深拉深实验平台,在这个基础上,推出了材料为430不锈钢、304不锈钢、1050(1060)合金铝、3003合金铝,且形状各异的大量深拉深件.     

Treatment of 2-phenylamino-3-methyl-6-di-n-butylaminofluoran production effluent by combination of biological treatments and Fenton＇s oxidation

High strength refractory organic stream is produced during the production of 2-phenylamino-3-methyl-6-di-n-butylaminofluoran （One Dye Black 2, abbr. ODB 2）, a novel heat-sensitive material with a promising market. In this study, a combination of acidificationprecipitation, primary biological treatment, Fenton＇s oxidation and another biological treatment was successfully used for the removal of COD from 18000-25000 mg/L to below 200 mg/L from the ODB 2 production wastewater in a pilot experiment. A COD removal of 70%-80% was achieved by acidification-precipitation under a pH of 2.5-3.0. The first step biodegradafion permitted an average COD removal of 70% under an hydraulic residence time （HRT） of 30 h. By batch tests, the optimum conditions of Fenton＇s oxidation were acquired as： Fe^2＋ dose 6.0 mmol/L; H2O2 dose 3000 mg/L; and reaction time 6 h. The second step biological treatment could ensure an effluent COD below 200 mg/L under an HRT of 10 h following the Fenton＇s treatment.     

超滤膜处理火电厂废水的工业性试验研究

结合现场中试探讨了超滤作为反渗透预处理工艺的可行性，确定了超滤工艺处理某火电厂废水的基本参数，研究了超滤膜的恢复及效果，并且提出了系统设计的相关建议，对工业系统设计具有指导意义。     

昆明市医疗废物的焚烧处理

医疗废物含有大量传染性物质,导致污染的可能是各种病菌和寄生虫卵等,是高度危险废物,必须进行无害化处置.针对昆明市医疗废物的现状,根据国内外先进的管理和处理模式,结合昆明市实际情况,采用焚烧实验炉焚烧昆明市医疗废物,医疗废物无须进行预处理,能直接进行焚烧.实验证明,高温焚烧可彻底清除医疗废物中的病菌及恶臭气体,保证医疗废物的无害化处理.     

From Valuation to Governance: Using Choice Experiment to Value Street Trees

This paper reports a choice experiment used to estimate the value of street trees in the city center of Lodz, Poland, and the broader context of how valuation results helped to improve governance of urban ecosystem services in this city. Based on a simplified inventory of trees, we prepared a set of hypothetical programs which put varying emphasis on the different ways to increase the numbers of trees, along with different levels of a hypothetical tax that would have to be paid by respondents to implement a given program. Our study indicated that the 351 surveyed Lodz residents were willing to pay the highest price for greening those streets where currently there are few or no trees and confirmed the general importance of planting trees. The results provided an argument in the debate on the new development strategy for the city and helped to promote the concept of ecosystem services.