固体废弃物再生陶瓷的实验研究     

陈智连  李金娜  吴金金  张培萍 《吉林大学学报(地球科学版)》2006,(Z1)

为了使垃圾焚烧发电后的二次垃圾得到合理利用,从而彻底消灭垃圾,利用长春市鑫祥垃圾焚烧发电厂的二次垃圾与适量的高岭土和石英相配比,采用干法压制成型和低温快烧工艺,制备出了性能优异的陶瓷制品。力学性能测试结果显示制品的抗弯强度为41~99.25MPa,吸水率为0.13%~6.95%。XRD、FTIR等测试分析其主晶相是石英。并在正交实验的基础上优选出了再生陶瓷的最佳配方为:二次垃圾∶高岭土∶石英=34∶39∶27,最佳烧成温度是1120℃左右。与相关标准对照可知,制品的主要研发方向为无釉陶瓷地砖、无釉瓷质砖和釉面内墙砖。  相似文献   

Research achievements and application in anaerobic treatment of organic solid wastes—— A review     

周富春熊德国  鲜学福徐龙君 《中国地球化学学报》2006,25(2):178-181

1 IntroductionSolid wastes (SW) refer to all the wastes derivedfrom human and animal activities, which are normallysolid and are discarded as useless or unwanted (Juha-Heikki Tanskanen, 2000 ). Generally, the organicfraction accounts for more than 50% -60…  相似文献   

红矸石在锚喷支护巷道中的应用          下载免费PDF全文

刘玉元  李瑞江  张京泉 《探矿工程》2006,33(2):63-65

通过对矿井锚索支护巷道喷浆骨料的各种配比试验研究，结合现场的实际应用，总结出比较适合巷道喷浆使用的采用红矸石做骨料的骨料配比方案。  相似文献   

Research achievements and application in anaerobic treatment of organic solid wastes--A review     

ZHOU Fuchun  XIONG Deguo  XIAN Xuefu  XU Longjun 《中国地球化学学报》2006,25(2)

Anaerobic digestion is a good method, which possesses the optimal combination of volume reduction, probability of success and potential for resource and energy recovery. However, relatively little research has been done on the anaerobic digestion of organic solid wastes ( OSW ), especially in China.However, different substrates, start-up conditions, micro-organisms, processing technologies, pre-treatment methods could influence the result of anaerobic digestion. Anaerobic treatment of municipal OSW is less than that of wastewaters because some problems and obstructions need to be solved. Meanwhile, the application of anaerobic digestion of OSW is also discussed in the present paper.  相似文献   

Effects of local site conditions on the seismic response of municipal solid waste landfills   总被引：3，自引：0，他引：3  

P.N. Psarropoulos  Y. Tsompanakis  Y. Karabatsos   《Soil Dynamics and Earthquake Engineering》2007,27(6):553-563

Over the last decade, the seismic response of landfills made of municipal solid waste has drawn attention mainly due to the environmental and public-health issues that could be raised in the event of a failure. Nevertheless, there are several associated technical issues that have not been adequately investigated. One of these is the impact of local site conditions on the earthquake-induced accelerations and, thereby, on the seismic design of a landfill. This study presents the results of a parametric numerical simulation that has been performed in order to examine the effects of local site conditions on the dynamic response of a typical landfill. Emphasis is given on the special characteristics of ground motion, while the material nonlinearity of both soil and waste is taken into account by an equivalent-linear procedure. Results indicate that local site conditions may play a significant role in the seismic response of a landfill. However, this role cannot be judged a priori as beneficial or detrimental, as it depends not only on soil conditions and seismic excitation, but also on the material and geometric characteristics of the landfill.  相似文献   

Kinetic Studies and Anaerobic Co‐digestion of Vegetable Market Waste and Sewage Sludge     

S. Anhuradha  V. Vijayagopal  P. Radha  R. Ramanujam 《洁净——土壤、空气、水》2007,35(2):197-199

The effect of anaerobic co‐digestion of vegetable market waste and sewage sludge was studied extensively. The effects of co‐digestion were compared with the separate digestion of vegetable market waste and sewage sludge. The batch studies were carried out using three bench scale reactors having 1.5 L working volume. The cumulative biogas production shows that the organic waste available from the vegetable waste contains easily biodegradable organic matter compared with the sewage sludge. First order reaction kinetics is maintained throughout the methanation fermentation. The reductions in volatile solids (VS) in the three reactors were in the range of 63–65 %. The specific gas production for vegetable waste was higher (0.75 L biogas/g VS_in and 1.17 L biogas/g VS_des) than for the sewage sludge (0.43 L biogas/g VS_in and 0.68 L biogas/g VS_des). Consequently, the specific gas production for the co‐digestion of the mixture of vegetable waste and sewage sludge (0.68 L biogas/g VS_in and 1.04 L biogas/g VS_des) was considerably higher than for the sewage sludge only. Batch kinetics of anaerobic digestion is useful in predicting the performance of digesters and for the design of appropriate digesters.  相似文献   

Extraction of water and solutes from argillaceous rocks for geochemical characterisation: Methods, processes and current understanding     

Elisa Sacchi  Jean-Luc Michelot  Helmut Pitsch  Philippe Lalieux  Jean-François Aranyossy 《Hydrogeology Journal》2001,9(1):17-33

This paper summarises the results of a comprehensive critical review, initiated by the OECD/NEA "Clay Club," of the extraction techniques available to obtain water and solutes from argillaceous rocks. The paper focuses on the mechanisms involved in the extraction processes, the consequences on the isotopic and chemical composition of the extracted pore water and the attempts made to reconstruct its original composition. Finally, it provides some examples of reliable techniques and information, as a function of the purpose of the geochemical study. Electronic Publication  相似文献   

青海煤系复杂地层环保冲洗液体系研究及应用          下载免费PDF全文

鲍海山  张少林  赵光通  王伟超  文怀军  罗宏昌 《探矿工程》2021,48(S1):233-238

为了更好地适应绿色勘查工作要求,推动地质钻探工作绿色发展,促进绿色勘查工作进步,通过室内实验研究,围绕研制的环保型冲洗液体系能否满足环境保护和钻探工程要求,开展了对环保冲洗液添加剂及体系优选实验,研制了适合青海煤系复杂地层的环保冲洗液体系,并成功在木里煤田综合工程地质勘查项目HF-4号钻孔进行了生产试验。通过室内实验研究和现场应用表明,研制的环保冲洗液体系生物毒性达到了国家环保排放标准EC₅₀≥30000 mg/L,并解决了青海煤系复杂地层孔壁易失稳等技术难题,形成了一套适合青海煤系复杂地层的环保冲洗液体系,取得了良好的社会和经济效益,表明该项技术成果有着良好的推广应用前景。  相似文献   

天津地区工程废弃泥浆物理压滤处置技术研究          下载免费PDF全文

樊勇军  武恒  王士国 《探矿工程》2021,48(7):115-120

在天津地区,工程废弃泥浆处置方式简单,污染环境严重,已成为工程项目亟待解决的难点问题。以某桩基施工现场为试验场地,采用小型压滤实验机对现场废浆进行物理压滤就地处置试验,选取28~30 L/（m²·s）的1型滤布,60 min压滤时间为单机一次的最佳处理时间,实现了废弃泥浆现场固液分离目的。通过施工设备实际运行,通过添加少量石灰方式可将单次压滤时间降低至45 min。该现场压滤处置技术方法,有效地解决了现场泥浆外排的难题,达到资源节约和环境保护的目的。  相似文献   

煤化工渣高效吸附去除水中全氟辛酸     

刘娜  王金鑫  焦昕倩  雒峰 《吉林大学学报(地球科学版)》2021,51(6):1853-1862

为高效快速去除水中全氟辛酸,选择工业废物煤化工渣对全氟辛酸进行吸附去除探究。采用不同的处理方法制备了4种煤化工渣（粒径从大到小为CGA1、CGA2、CGA3和CGA4）,研究其在水溶液中的全氟辛酸吸附性能。利用扫描电子显微镜（SEM）、拉曼光谱、傅里叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）对4种煤化工渣的结构特征进行表征分析,并考察了全氟辛酸初始质量浓度和初始pH对吸附进程的影响。实验结果表明：煤化工渣对全氟辛酸有高效的吸附能力,伪二级动力学模型和Langmuir等温模型可以较好地描述4种煤化工渣对全氟辛酸的吸附行为及过程,其中CGA4去除全氟辛酸的最大吸附量为25.51 mg/g;随着全氟辛酸溶液初始质量浓度升高,煤化工渣对全氟辛酸的吸附容量逐渐增加;初始pH对CGA3和CGA4的影响微弱,CGA1和CGA2在酸性条件下显示出更优越的吸附性能。由此得出,4种煤化工材料中粒径最小的CGA4具有最优的全氟辛酸去除能力且基本不受pH限制。FTIR分析表明,吸附过程中氢键的形成占主导地位,XPS和Zeta电位检测结果表明,物理吸附和静电吸附在去除过程中也发挥了重要作用。  相似文献