双波长光度法测定微量亚硝酸根

利用甲基蓝与亚硝酸根反应，根据双波长处吸光度的加和值与NO2^-浓度的线性关系，提出并建立了测定亚硝酸根含量的新方法。线性范围0．05－1．20mg/L，用于样品中NO2^-的测定均获得满意结果。     

多环芳烃的分配系数与双区理论

以双区理论为基础,提出了多环芳烃的致癌性与其分配系数之间的定量关系方程,并利用该方程计算了77个多环芳烃的致癌性。计算值与实验值基本符合。     

氯片及氯片消毒器

本文介绍了适合医院污水治理的新方法,此方法简单、易管理、投资少,为大批小型医院的污水消毒提供了理想的设备和消毒剂。     

污水快速渗滤处理系统对某些微量有机污染物的净化

利用室内大型土柱对ＲＩ系统中微量有机污染物氯仿，四氯化碳，三氯乙烯，苯及甲苯的净化过程进行了模拟研究，结果表明，系统对三种氯代脂肪烃具有很好的净化效果，其浓度可从进水时２０００－６０００μｇ／Ｌ降至１００μｇ／Ｌ以下，系统对苯和甲苯的净化与淹水时间有关，淹水初期净化效果良好，其浓度可从进水时１０００－１７００μｇ／Ｌ降至１００μｇ／Ｌ以下，但随着淹水时间的延续，净化效果变差，直至出水浓度与进水浓度     

SNOX烟气双脱新工艺

SNOX双脱新工艺是利用催化反应将NO_x、转化成氮气、将SO_2、转化成浓硫酸产品,并较充分地利用余热,是干式、节能型、较好地利用硫资源的方法,在欧、美引起相当的重视。本文按1992年4月发表的300MW全尺寸大型装置运行情况的报导编写。     

Dobbins-Camp水质模型的修正

对多宾斯 坎普 (Dobbins Camp)水质模型进行了修正 ;并分别运用传统多宾斯 坎普模型和修正模型 ,对某河段实测资料进行BOD、D(氧亏 )计算 ,比较两者之间的异同 ,及分析溶解氧对有机物降解的影响     

Water solubility enhancements of PAHs by sodium castor oil sulfonate microemulsions

Water solubility enhancements of naphthalene( Naph), phenantherene(Phen) and pyrene(Py) in sodium castor oil sulfonate(SCOS) microemulsions were evaluated. The apparent solubilities of PAHs are linearly propertional to the concentrations of SCOS microemulsion, and the enhancement extent by SCOS solutions is greater than that by ordinary surfactants on the basis of weight solubilization ratio(WSR). ThelogKcm values of Naph, Phen, and Py are 3.13, 4.44 and 5.01 respectively, which are about the same as the logKow values. At 5000 mg/L of SCOS conccentration, the apparent solubilities are 8.80, 121, and 674 times as the intrinsic solubilities for Naph, Phen, and Py. The effects of inorganic ions and temperature on the solubilization of solutes are also investigated. The solubilization is improved with a moderate addition of Ca^2 , Na^ , NH4^ and the mixture of Na^ , K^ , Ca^2 , Mg^2 and NH4^ . WSR values are enhanced by 22.0% for Naph,23.4% for Phen, and 24.6% for Py with temperature increasing by 5~C. The results indicated that SCOS microemulsions improve the performance of the surfactant-enhanced remediation(SER) of soil, by increasing solubilities of organic pollutants and reducing the level of surfactant pollution and remediation expenses.