Effects of intercropping with floricultural accumulator plants on cadmium accumulation in grapevine

Environmental Science and Pollution Research - Grapevine (Vitis vinifera L.) intercropping with floricultural cadmium (Cd) accumulator plants (Helianthus annuus L., Cosmos sulphureus Cav., Cosmos...     

制备ZnO/CdS/Au异质结用于可见光催化降解低浓度甲醛

采用水热法和化学浴沉积法制备了ZnO/CdS/Au异质结光催化剂,用于可见光下室温去除低浓度甲醛。通过XRD、SEM、TEM、XPS、UV、PL、PEC、EIS等手段对ZnO/CdS/Au异质结光催化剂的光学性能、光电性能进行表征。结果表明,Au负载的ZnO/CdS纳米棒组成的微米花状结构中,异质结和金属等离子体效应能拓宽光谱吸收范围,抑制半导体缺陷发光,促进光吸收以及光生电子空穴的分离和迁移;所制备的ZnO/CdS/Au异质结光催化剂对甲醛的去除具有优异性能,室温下2 h即可将反应舱内低质量浓度甲醛(1.25 mg·m⁻³)降至0.025 mg·m⁻³以下,且经过8次重复使用后催化剂活性没有明显下降。此外,影响甲醛去除的因素,如催化剂种类、光照波长、甲醛初始质量浓度、相对湿度也进行了研究和探讨。该研究结果对低浓度甲醛的室温去除具有理论指导意义。     

臭氧-曝气生物滤池处理酸性玫瑰红染料废水

在实验室配制含酸性玫瑰红染料的印染废水，采用臭氧氧化-曝气生物滤池工艺开展处理试验。试验运行结果表明，臭氧氧化处理能提高模拟废水的可生化性，BOD／COD值由原水的0．18上升到0．36。经组合工艺处理后出水COD〈40mg／L，色度40倍以下，SS约50mg／L，处理效果良好。     

土壤中水动力弥散系数的研究进展

从溶质运移的基本方程出发 ,系统论述了国内外对土壤中水动力弥散系数测定方法的研究进展 ,并指出了上述各种方法的适用条件及存在的问题     

铝件表面处理废水治理所得化学污泥的再生利用研究

对混凝法处理铝件表面处理废水治理所得化学污泥再生利用进行了研究,得到了适宜的操作条件.结果表明,用浓硫酸溶解污泥的最佳用量为0.14～0.16 mL/g湿污泥,湿污泥的溶解率可达90%,铝的溶出率也可达95%以上.把污泥的溶解液作混凝剂回用于印染废水的混凝处理也取得了良好的效果,其COD去除率≥80%,脱色率≥90%.实现了资源的二次利用,改善了作业环境,获得了较好的经济效益和社会效益.     

The associations of air pollution exposure during pregnancy with fetal growth and anthropometric measurements at birth: a systematic review and meta-analysis

Environmental Science and Pollution Research - Fetal growth has been demonstrated to be an important predictor of perinatal and postnatal health. Although the effects of maternal exposure to air...     

Fenton法降解垃圾渗滤液中的溶解性有机质

垃圾渗滤液是一种高浓度难降解废水,含有大量有毒物质和溶解性有机质（dissolved organic matter, DOM）,可生化性差。Fenton试剂（Fe2++H2O2）能产生活性极强的羟基自由基（·OH）,能快速氧化渗滤液中DOM和微量有机物质。本研究采用Fenton法处理垃圾渗滤液,结果表明,在优化的处理条件下,渗滤液COD和TOC去除率分别为65%和42%,其中混凝作用去除的COD和TOC分别为20%和21%。进一步通过紫外可见光谱扫描、SUVA254、E3/E4等指标评价,发现Fenton法可以有效降低渗滤液中的DOM含量,大分子有机物的含量明显减少,而分子量小的有机物含量相对增加,反应体系中溶解性有机物分子量随着反应的进行而降低,腐殖化程度降低。利用GC-MS定性出渗滤液原液中47种有机物,该类有机物在Fenton反应后上清液中未再检出,但5种物质（邻苯二甲酸二（2-乙基己）酯、植酮、角鲨烯、麥角甾烷醇和二氢胆固醇）在沉淀的铁泥中检出。研究发现不同pH值、H2O2和Fe2+浓度条件下,残留的COD与DOM、TOC和UV254存在显著的相关关系（R2> 0.9）。本研究结果为改进垃圾渗滤液处理工艺和探索DOM在Fenton过程中的降解行为提供科学依据。     

The effects of air pollution on the lung cancer mortality in rural areas of eastern China: a multi-region study

Environmental Science and Pollution Research - Recently, the burden of lung cancer (LC) has attracted global attention. Meanwhile, LC has become the leading cause of death in China. Many studies...     

Does more voluntary environmental information disclosure cut down the cost of equity: heavy pollution industries in China

Environmental Science and Pollution Research - Examining the coexisting policies for mandatory and voluntary disclosure of environmental information, this paper focuses on the unique background for...     

What are the disease burden and its sensitivity analysis of workers exposing to Staphylococcus aureus bioaerosol during warm and cold periods in a wastewater treatment plant?

Environmental Science and Pollution Research - Biological treatment in wastewater treatment plants releases high amounts of pathogenic bioaerosols. Quantitative microbial risk assessment is a...