电镀重金属污泥的无害化处置和资源化利用

从电镀重金属污泥的特点及其危害性谈起,综述了目前国内外电镀污泥的无害化处置和资源化利用的各种技术及研究进展。     

Moisture monitoring in waste disposal surface barriers

Surface barriers for waste disposal sites should preventwaste water and gas emission into the environment. It isnecessary to assess their proper operation by monitoring thewater regime of the containment. A set of three new water contentmeasuring devices has been developed that provide an economicalsolution for monitoring the moisture distribution and waterdynamic. They will give an early warning service if the barriersystem is at risk of being damaged. The cryo soil moisture sensor`LUMBRICUS' is an in situ self-calibrating absolute water contentmeasuring device. It measures moisture profiles at spot locationsdown to 2.5 m depth with an accuracy of better than 1.5% and adepth resolution of 0.03 m. The sensor inherently measuresdensity changes and initial cracks of shrinking materials likeclay minerals. The large area soil moisture sensor `TAUPE' is amoisture sensitive electric cable network to be buried in themineral barrier material of the cover. A report will be givenwith results and experiences on an exemplary installation at theWaste Disposal Facility Karlsruhe-West. 800 m² of the barrierconstruction have been continuously monitored since December1997. Volumetric water content differences of 1.5% have beendetected and localised within 4 m. This device is alreadyinstalled in two other waste disposal sites. A modified `TAUPE'was constructed for the control of tunnels and river dams aswell. Thin sheet moisture sensor `FORMI' is specifically designedfor moisture measurements in liners like bentonite, textile andplastic. Due to its flexibility it follows the curvature of theliner. The sensor measures independently from neighbouringmaterials and can be matched to a wide range of differentthickness of the material. The sensors are patented in several countries.     

环境监理在海洋环境保护中的作用

阐述了开展海洋环境监理工作意义，论述了海洋环境监理的任务介绍了本地区开展海洋环境监理工作的经验。     

新型冠状病毒肺炎疫情医疗废物应急管理与处置

基于我国新型冠状病毒肺炎疫情医疗废物应急管理与处置体系建立过程，分析疫情初期医疗废物管理与处置短板，预测医疗废物产生量随患者人数发展的变化，提出医疗废物突出问题的解决方案。结果表明：及时构建重大疫情医疗废物全过程应急管理与处置技术体系有利于促进医疗废物分类分流管理与处置，迅速提升医疗废物应急处置能力；修正湖北省涉疫情医疗废物和医疗废物平均产生系数分别为3.35 kg/（人·d）和5.15 kg/（人·d）；截至2020年6月6日，全国医疗废物处置能力从疫情前的4 902.8 t/d增至6 245.4 t/d，湖北省具备的医疗废物处置能力由疫情前的180 t/d增至667.4 t/d；疫情期间积累的医疗废物应急管理与技术经验对后疫情时期建立和强化医疗废物应急管理与处置机制具有借鉴意义。     

Assessment of Ground Water Vulnerability and its Application to the Development of Protection Strategy for the Water Supply Aquifer in Owerri, Southeastern Nigeria

Pollution vulnerability of theOwerri regional water supply aquifer wasevaluated as a basis for developing appropriateprotection strategy for the groundwaterresource. The assessment was accomplished usingLegrand, GOD, Siga and DRASTIC models.Techniques of the models generally involvedparameters rating and point count systems, whichare based on the evaluation of various parameterin relation to their capacity for enhancing orattenuating contaminants in the groundwatersystem. Field and laboratory evaluations of theparameters indicate that the Owerri areagenerally occupies a nearly, flat topographywith a relatively high groundwater recharge. Thearea is underlain by predominantly sandyfacies in the Northern area which grades intogravelly sequences towards the southwest. TheSoutheastern area is distinguished by thickclayey facies that thin westwards towards theOwerri metropolis. Effective hydraulicconductivity (Kz) in the downward directionranges from 1.44 × 10^-3 to 5.6 × 10^-9 m s^-1; with the upper limits reflecting coarsesands and gravelly units. The amount of clay andclay-size particles in the sandy and gravellyunits is negligible, suggesting that thesorptive capacity of the units is low. Depth towater table decreases southwards while hydraulichead gradients vary between 0.09 and 0.22.Groundwater occurs in unconfined conditions inmost places except in the southeastern zonewhere it is semi-confined due to the presence ofa clayey unit. The groundwater vulnerabilitymap developed on the basis of the models andseveral other thematic maps shows that theOwerri metropolis and the southwest area ofOwerri have high vulnerability, indicatinggroundwater pollution. The existing wastedisposal sites in these sub-areas should beabandoned and rehabilitated to forstall furtherpollution of the groundwater system. Areas tothe North and Southeast of Owerri have moderateand low vulnerabilities, respectively,indicating the relatively lower sensitivity ofthe groundwater system in the sub-areas tocontamination. The lower sensitivity couldfurther be matched with properly engineeredsanitary landfills in the event of choice ofsites, as an additional protective strategy forthe groundwater system.     

新疆城市废水处理方案的探讨

新疆城市废水（５８．１％＋１５．７％）排入地表水体和地下水体，致使部分地区地表水和地下水资源遭到不同程度的污染．进行了城市废水处理方法的对比分析，结合新疆地域特点，提出中小城市废水适宜用氧化塘处理方法．经氧化塘处理后的废水达到国家《农田灌溉水质标准》，灌溉当地农田和草场．既净化了城市污水，又减少了环境污染，把城市废水变成再生水资源循环使用，这对保护水源和发展农田灌溉起着积极的作用．     

持久性有机污染物分析和处理技术研究进展

阐述了持久性有机污染物 (POPs)的特性、POPs对人体健康和生态环境的危害及其判定基准 ,综述了其分析和研究方法及治理技术 ,归纳了POPs的研究内容。     

机加工含油废水处理研究

为解决东风汽车公司污水处理站排污不达标的问题,对废水处理过程的混凝、气浮两环节进行了考察分析;针对存在的问题进行了实验室内混凝实验,反应箱投药实验及气浮设备的清洗。根据实验结果处理站调整了投药量,加之设备的清洗,明显提高了处理效果,使水质能满足排放要求     

JZW-4钻井污水处理装置的研制及应用

为解决现有的钻井污水处理设备无法满足污水处理需要的问题,研制了ＪＺＷ－４型钻井污水处理装置。对污水进行了室内试验,证明只有混凝－离心－过滤法是最佳的处理方法;并根据此方法研究制造出了ＪＺＷ－４钻井污水设备。现场试验结果表明：用该装置处理污水,出口水质符合国家综合二级排放标准。说明ＪＺＷ－４钻井污水处理装置工艺流程设计合理,适应性强,处理效果好,具有创造性。     

XBG系列保温材料的制备与应用

介绍了ＸＢＧ系列复合再生型无污染保温材料的研制、施工、回收再生及产品的特点和用途．实际应用表明，该产品安全可靠，保温效果显著，施工方便，可回收利用