煤矿矿井水及废水的性质和处理

煤炭是我国的主要能源。然而,煤炭的过量、非有序开发和非高效、非洁净利用带来的资源与环境问题已经成了中国经济、能源、环境协调发展的制约因素,并对全社会可持续发展构成了严重威胁,煤炭工业的健康发展面临着严峻的挑战。 煤炭在开采与利用过程中产生的环境问题是十分严重的,其中水污染是一个突出的环境问题之一。     

加强我国环境税收体系研究之浅析

建立环境税收体系,已越来越被一些国家重视,我国也将于2010年前课征环境税。因此,有必要对环境税收进行系统的研究。从客观上分析了目前国内外环境税的现状,并在此基础上就我国完善环境税收提出了一些建议。     

Secondary effect of SO_2 pollution: enhanced growth of the army worm, Mythimna separata (Walker)

Effects of SO2 pollution on growth of the army worm, Mythimna separata, were investigated by rearing the larvae for 12 days on the wheat plants being exposed to SO2 levels ranged from 50 to 200 ppb in the field open-top fumigation devices. Larval period shortened while their mean relative growth rate (MRGR) increased as SO2 dose elevated. Similar experiment with the insect on the artificial diet excluded the possibility that SO2 pollution directly stimulated growth of the army worm.The patterns of change in amino acid hydrolysates in the host foliage suggested that contents of methionine, and perhaps, arginine in food material exposed to unpolluted air were at such levels that they could only support sub-optimum growth of the insect, and SO2 pollution increased concentrations of these limiting amino acids, resulting in better performance of the larvae.     

低浓度含铬工业废水的在线自动监控新技术

研究了可自动监测工业排放废水Ｃｒ＾６＋的在线监测仪。采用５１系列单片机对流体注射仪（ＦＩＡ）进行自动控制，以硬件自动检测Ｃｒ＾６＋浓度。当Ｃｒ＾６＋浓度大于０．４ｍｇ／Ｌ，小于０．５ｍｇ／Ｌ时，发生预报警信号，大于０．５ｍｇ／Ｌ时，发出强报信号，以提醒工作人员控制废水排放浓度，采用防脉冲干扰平均值滤波法对数据进行处理，可消除采样中的干扰。     

固定化微生物脱氮

应用固定化微生物技术开展单级生物脱氮的研究。结果表明，固定化硝化与反硝化混合污泥可以实现单级生物脱氮，效果好于未固定化污泥，氨氧化速率和总无机氮的脱中分别提高到未固定化污泥的１．７倍和１３．４倍。结果还表明光硬化树脂也是一种较好的固定化介质。     

Secondary effect of SO2 pollution: enhanced growth of the army worm, Mythimna separata (Walker)

Effects of SO₂ pollution on growth of the army worm, Mythimna separata, were investigated by rearing the larvae for 12 days on the wheat plants being exposed to SO₂ levels ranged from 50 to 200 ppb in the field open-top fumigation devices. Larval period shortened while their mean relative growth rate (MRGR) increased as SO₂ dose elevated. Similar experiment with the insect on the artificial diet excluded the possibility that SO₂ pollution directly stimulated growth of the army worm.The patterns of change in amino acid hydrolysates in the host foliage suggested that contents of methionine, and perhaps, arginine in food material exposed to unpolluted air were at such levels that they could only support sub-optimum growth of the insect, and SO₂ pollution increased concentrations of these limiting amino acids, resulting in better performance of the larvae.     

玻璃纤维布负载TiO2膜光催化氧化垃圾渗滤液

本文以钛酸丁酯为原料，通过溶胶-凝胶技术在玻璃纤维布上制备TiO2膜。分别以10w低压汞灯和400w高压汞灯作为光源。对垃圾渗滤液进行了光催化氧化处理。综合分析了影响CODCr去除率及UV335去除率的因素。结果表明，以玻璃纤维布作载体制备的TiO2膜光催化氧化处理垃圾渗滤液具有较好的效果。     

用加速溶剂提取仪提取污染土壤中的有机氯农药

研究加速溶剂萃取对土壤中有机氯农药的提取效果,并与索氏提取法进行比较。结果表明,加速溶剂萃取对土壤中滴滴涕的回收率明显高于索氏提取,对土壤中BHC的提取能力与索氏提取相当。用该方法测定了天津污灌区和非污灌区土壤样品中的有机氯农药残留量。结果表明,α-BHC、β-BHC、δ-BHC、γ-BHC、p,p’-DDE、p,p’-DDD、p,p’-DDT、o,p’-DDT的检出率为100％,这些有机氯农药在污灌旱地和稻田地的残留量分别为7．5－71．1ng/g和3．0－16．5ng/g。非污灌的旱地中有机氯农药的残留量为3．1－17．6ng/g。     

Greenhouse gas emissions from a constructed wetland for municipal sewage treatment

ＩｎｔｒｏｄｕｃｔｉｏｎＣＨ4 ａｎｄＮ2 Ｏｐｒｏｄｕｃｅｄｆｒｏｍｍｕｎｉｃｉｐａｌｓｅｗａｇｅｓｙｓｔｅｍ ,ａｓｉｍｐｏｒｔａｎｔｐａｒｔｏｆａｎｔｈｒｏｐｏｇｅｎｉｃｅｍｉｓｓｉｏｎｏｆｇｒｅｅｎｈｏｕｓｅｇａｓｅｓｉｎｔｏａｔｍｏｓｐｈｅｒｅ ,ｈａｖｅａｔｔｒａｃｔｅｄｗｏｒｌｄｗｉｄｅａｔｔｅｎｔｉｏｎｉｎｒｅｃｅｎｔｙｅａｒｓｂｅｃａｕｓｅｏｆｔｈｅｉｒａｓｓｏｃｉａｔｉｏｎｗｉｔｈｇｌｏｂａｌｗａｒｍｉｎｇ .Ａｓａｒｅｓｕｌｔｏｆｔｈｉｓ,ｎｕｍｅｒｏｕｓｓｔｕｄｉｅｓｈａｖｅｂｅｅ…     

苎麻(B.nivea(L).Gaud)对土壤Cd的吸收及其生物净化效应

通过４年微区定位试验，研究了苎麻对土壤Ｃｄ的吸收及其净化效应。结果发现，苎麻地上部分年生物产量（ＹＢ）与土壤Ｃｄ含量）（Ｓｃ）的关系可用对数函数模型ＬｏｇＹＢ＝３．３８７４－０．０７５３（ＬｏｇＳｃ）＾２描述；